Merge branch 'master' of https://github.com/godotengine/godot

39 files changed, 843 insertions, 265 deletions

diff --git a/core/SCsub b/core/SCsub
index 4ce91c794..cbed2e4f3 100644
--- a/core/SCsub
+++ b/core/SCsub
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 Import('env')
 
 env.core_sources=[]
diff --git a/core/array.cpp b/core/array.cpp
index 23792f90f..683a43e3d 100644
--- a/core/array.cpp
+++ b/core/array.cpp
@@ -276,16 +276,26 @@ void Array::push_front(const Variant& p_value) {
 	_p->array.insert(0,p_value);
 }
 
-void Array::pop_back(){
+Variant Array::pop_back(){
 
-	if (!_p->array.empty())
-		_p->array.resize( _p->array.size() -1 );
+	if (!_p->array.empty()) {
+		int n = _p->array.size() - 1;
+		Variant ret = _p->array.get(n);
+		_p->array.resize(n);
+		return ret;
+	}
+	return Variant();
 
 }
-void Array::pop_front(){
 
-	if (!_p->array.empty())
+Variant Array::pop_front(){
+
+	if (!_p->array.empty()) {
+		Variant ret = _p->array.get(0);
 		_p->array.remove(0);
+		return ret;
+	}
+	return Variant();
 
 }
 
diff --git a/core/array.h b/core/array.h
index dfc902525..eb79b0cf3 100644
--- a/core/array.h
+++ b/core/array.h
@@ -80,8 +80,8 @@ public:
 	void erase(const Variant& p_value);
 
 	void push_front(const Variant& p_value);
-	void pop_back();
-	void pop_front();
+	Variant pop_back();
+	Variant pop_front();
 
 	Array(const Array& p_from);
 	Array(bool p_shared=false);
diff --git a/core/bind/SCsub b/core/bind/SCsub
index 7b4a6acbc..c2731d60e 100644
--- a/core/bind/SCsub
+++ b/core/bind/SCsub
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 Import('env')
 
 env.add_source_files(env.core_sources,"*.cpp")
diff --git a/core/globals.cpp b/core/globals.cpp
index b822f52f1..bef40ff33 100644
--- a/core/globals.cpp
+++ b/core/globals.cpp
@@ -54,7 +54,7 @@ String Globals::localize_path(const String& p_path) const {
 	if (resource_path=="")
 		return p_path; //not initialied yet
 
-	if (p_path.begins_with("res://") || p_path.begins_with("user://"))
+	if (p_path.begins_with("res://") || p_path.begins_with("user://") || p_path.is_abs_path())
 		return p_path.simplify_path();
 
 
diff --git a/core/hashfuncs.h b/core/hashfuncs.h
index a917ee5ed..6c029a345 100644
--- a/core/hashfuncs.h
+++ b/core/hashfuncs.h
@@ -74,7 +74,10 @@ static inline uint32_t hash_djb2_one_float(float p_in,uint32_t p_prev=5381) {
 		float f;
 		uint32_t i;
 	} u;
-	u.f=p_in;
+
+	// handle -0 case
+	if (p_in==0.0f) u.f=0.0f;
+	else u.f=p_in;
 
 	return ((p_prev<<5)+p_prev)+u.i;
 }
diff --git a/core/io/SCsub b/core/io/SCsub
index 3ff9b355a..48cc9a527 100644
--- a/core/io/SCsub
+++ b/core/io/SCsub
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 Import('env')
 
 env.add_source_files(env.core_sources,"*.cpp")
diff --git a/core/io/http_client.cpp b/core/io/http_client.cpp
index 2a831dd99..e3289b452 100644
--- a/core/io/http_client.cpp
+++ b/core/io/http_client.cpp
@@ -29,8 +29,9 @@
 #include "http_client.h"
 #include "io/stream_peer_ssl.h"
 
+VARIANT_ENUM_CAST(IP_Address::AddrType);
 
-Error HTTPClient::connect(const String &p_host, int p_port, bool p_ssl,bool p_verify_host){
+Error HTTPClient::connect(const String &p_host, int p_port, bool p_ssl,bool p_verify_host, IP_Address::AddrType p_addr_type){
 
 	close();
 	conn_port=p_port;
@@ -62,7 +63,7 @@ Error HTTPClient::connect(const String &p_host, int p_port, bool p_ssl,bool p_ve
 		status=STATUS_CONNECTING;
 	} else {
 		//is hostname
-		resolving=IP::get_singleton()->resolve_hostname_queue_item(conn_host);
+		resolving=IP::get_singleton()->resolve_hostname_queue_item(conn_host, p_addr_type);
 		status=STATUS_RESOLVING;
 
 	}
@@ -635,7 +636,7 @@ Error HTTPClient::_get_http_data(uint8_t* p_buffer, int p_bytes,int &r_received)
 
 void HTTPClient::_bind_methods() {
 
-	ObjectTypeDB::bind_method(_MD("connect:Error","host","port","use_ssl","verify_host"),&HTTPClient::connect,DEFVAL(false),DEFVAL(true));
+	ObjectTypeDB::bind_method(_MD("connect:Error","host","port","use_ssl","verify_host"),&HTTPClient::connect,DEFVAL(false),DEFVAL(true),DEFVAL(IP_Address::TYPE_ANY));
 	ObjectTypeDB::bind_method(_MD("set_connection","connection:StreamPeer"),&HTTPClient::set_connection);
 	ObjectTypeDB::bind_method(_MD("get_connection:StreamPeer"),&HTTPClient::get_connection);
 	ObjectTypeDB::bind_method(_MD("request_raw","method","url","headers","body"),&HTTPClient::request_raw);
diff --git a/core/io/http_client.h b/core/io/http_client.h
index 32d2e7210..ba464c34c 100644
--- a/core/io/http_client.h
+++ b/core/io/http_client.h
@@ -165,7 +165,7 @@ public:
 
 
 	//Error connect_and_get(const String& p_url,bool p_verify_host=true); //connects to a full url and perform request
-	Error connect(const String &p_host,int p_port,bool p_ssl=false,bool p_verify_host=true);
+	Error connect(const String &p_host,int p_port,bool p_ssl=false,bool p_verify_host=true, IP_Address::AddrType p_addr_type = IP_Address::TYPE_ANY);
 
 	void set_connection(const Ref<StreamPeer>& p_connection);
 	Ref<StreamPeer> get_connection() const;
diff --git a/core/io/ip.cpp b/core/io/ip.cpp
index a77aace07..4ee1b281c 100644
--- a/core/io/ip.cpp
+++ b/core/io/ip.cpp
@@ -32,6 +32,7 @@
 #include "hash_map.h"
 
 VARIANT_ENUM_CAST(IP::ResolverStatus);
+VARIANT_ENUM_CAST(IP_Address::AddrType);
 
 /************* RESOLVER ******************/
 
@@ -43,10 +44,12 @@ struct _IP_ResolverPrivate {
 		volatile IP::ResolverStatus status;
 		IP_Address response;
 		String hostname;
+		IP_Address::AddrType type;
 
 		void clear() {
 			status = IP::RESOLVER_STATUS_NONE;
 			response = IP_Address();
+			type = IP_Address::TYPE_NONE;
 			hostname="";
 		};
 
@@ -78,9 +81,9 @@ struct _IP_ResolverPrivate {
 
 			if (queue[i].status!=IP::RESOLVER_STATUS_WAITING)
 				continue;
-			queue[i].response=IP::get_singleton()->resolve_hostname(queue[i].hostname);
+			queue[i].response=IP::get_singleton()->resolve_hostname(queue[i].hostname, queue[i].type);
 
-			if (queue[i].response.host==0)
+			if (queue[i].response.type==IP_Address::TYPE_NONE)
 				queue[i].status=IP::RESOLVER_STATUS_ERROR;
 			else
 				queue[i].status=IP::RESOLVER_STATUS_DONE;
@@ -109,21 +112,23 @@ struct _IP_ResolverPrivate {
 
 
 
-IP_Address IP::resolve_hostname(const String& p_hostname) {
+IP_Address IP::resolve_hostname(const String& p_hostname, IP_Address::AddrType p_type) {
 
-	GLOBAL_LOCK_FUNCTION
+	GLOBAL_LOCK_FUNCTION;
 
 	if (resolver->cache.has(p_hostname))
-		return resolver->cache[p_hostname];
+		if (resolver->cache[p_hostname].type & p_type != 0)
+			return resolver->cache[p_hostname];
+		// requested type is different from type in cache. continue resolution, if successful it'll overwrite cache
 
-	IP_Address res = _resolve_hostname(p_hostname);
+	IP_Address res = _resolve_hostname(p_hostname, p_type);
 	resolver->cache[p_hostname]=res;
 	return res;
 
 }
-IP::ResolverID IP::resolve_hostname_queue_item(const String& p_hostname) {
+IP::ResolverID IP::resolve_hostname_queue_item(const String& p_hostname, IP_Address::AddrType p_type) {
 
-	GLOBAL_LOCK_FUNCTION
+	GLOBAL_LOCK_FUNCTION;
 
 	ResolverID id = resolver->find_empty_id();
 
@@ -133,7 +138,8 @@ IP::ResolverID IP::resolve_hostname_queue_item(const String& p_hostname) {
 	}
 
 	resolver->queue[id].hostname=p_hostname;
-	if (resolver->cache.has(p_hostname)) {
+	resolver->queue[id].type = p_type;
+	if (resolver->cache.has(p_hostname) && (resolver->cache[p_hostname].type & p_type) != 0) {
 		resolver->queue[id].response=resolver->cache[p_hostname];
 		resolver->queue[id].status=IP::RESOLVER_STATUS_DONE;
 	} else {
@@ -145,10 +151,6 @@ IP::ResolverID IP::resolve_hostname_queue_item(const String& p_hostname) {
 			resolver->resolve_queues();
 	}
 
-
-
-
-
 	return id;
 }
 
@@ -187,6 +189,14 @@ void IP::erase_resolve_item(ResolverID p_id) {
 
 }
 
+void IP::clear_cache(const String &p_hostname) {
+
+	if (p_hostname.empty()) {
+		resolver->cache.clear();
+	} else {
+		resolver->cache.erase(p_hostname);
+	}
+};
 
 Array IP::_get_local_addresses() const {
 
@@ -208,6 +218,7 @@ void IP::_bind_methods() {
 	ObjectTypeDB::bind_method(_MD("get_resolve_item_address","id"),&IP::get_resolve_item_address);
 	ObjectTypeDB::bind_method(_MD("erase_resolve_item","id"),&IP::erase_resolve_item);
 	ObjectTypeDB::bind_method(_MD("get_local_addresses"),&IP::_get_local_addresses);
+	ObjectTypeDB::bind_method(_MD("clear_cache"),&IP::clear_cache, DEFVAL(""));
 
 	BIND_CONSTANT( RESOLVER_STATUS_NONE );
 	BIND_CONSTANT( RESOLVER_STATUS_WAITING );
diff --git a/core/io/ip.h b/core/io/ip.h
index 38c86e7ba..742dd0e74 100644
--- a/core/io/ip.h
+++ b/core/io/ip.h
@@ -48,6 +48,14 @@ public:
 		RESOLVER_STATUS_ERROR,
 	};
 
+	enum AddressType {
+
+		ADDRESS_IPV4 = 1,
+		ADDRESS_IPV6 = 2,
+
+		ADDRESS_ANY = 3,
+	};
+
 	enum {
 		RESOLVER_MAX_QUERIES = 32,
 		RESOLVER_INVALID_ID=-1
@@ -65,7 +73,7 @@ protected:
 	static IP*singleton;
 	static void _bind_methods();
 
-	virtual IP_Address _resolve_hostname(const String& p_hostname)=0;
+	virtual IP_Address _resolve_hostname(const String& p_hostname, IP_Address::AddrType p_type = IP_Address::TYPE_ANY)=0;
 	Array _get_local_addresses() const;
 
 	static IP* (*_create)();
@@ -73,14 +81,16 @@ public:
 
 
 
-	IP_Address resolve_hostname(const String& p_hostname);
+	IP_Address resolve_hostname(const String& p_hostname, IP_Address::AddrType p_type = IP_Address::TYPE_ANY);
 	// async resolver hostname
-	ResolverID resolve_hostname_queue_item(const String& p_hostname);
+	ResolverID resolve_hostname_queue_item(const String& p_hostname, IP_Address::AddrType p_type = IP_Address::TYPE_ANY);
 	ResolverStatus get_resolve_item_status(ResolverID p_id) const;
 	IP_Address get_resolve_item_address(ResolverID p_id) const;
 	virtual void get_local_addresses(List<IP_Address> *r_addresses) const=0;
 	void erase_resolve_item(ResolverID p_id);
 
+	void clear_cache(const String& p_hostname = "");
+
 	static IP* get_singleton();
 
 	static IP* create();
diff --git a/core/io/ip_address.cpp b/core/io/ip_address.cpp
index 7a51bce7c..9887cd132 100644
--- a/core/io/ip_address.cpp
+++ b/core/io/ip_address.cpp
@@ -32,29 +32,191 @@ IP_Address::operator Variant() const {
 
 	return operator String();
 }*/
+
+#include <string.h>
+#include <stdio.h>
+
 IP_Address::operator String() const {
 
-	return itos(field[0])+"."+itos(field[1])+"."+itos(field[2])+"."+itos(field[3]);
+	if (type == TYPE_NONE)
+		return "0.0.0.0";
+	if (type == TYPE_IPV4)
+		return itos(field8[0])+"."+itos(field8[1])+"."+itos(field8[2])+"."+itos(field8[3]);
+	else {
+		String ret;
+		for (int i=0; i<8; i++) {
+			if (i > 0)
+				ret = ret + ":";
+			uint16_t num = (field8[i*2] << 8) + field8[i*2+1];
+			ret = ret + String::num_int64(num, 16);
+		};
+
+		return ret;
+	};
 }
 
-IP_Address::IP_Address(const String& p_string) {
+static void _parse_hex(const String& p_string, int p_start, uint8_t* p_dst) {
+
+	uint16_t ret = 0;
+	for (int i=p_start; i<p_start + 4; i++) {
+
+		if (i >= p_string.length()) {
+			break;
+		};
+
+		int n = 0;
+		CharType c = p_string[i];
+		if (c >= '0' && c <= '9') {
+
+			n = c - '0';
+		} else if (c >= 'a' && c <= 'f') {
+			n = 10 + (c - 'a');
+		} else if (c >= 'A' && c <= 'F') {
+			n = 10 + (c - 'A');
+		} else if (c == ':') {
+			break;
+		} else {
+			ERR_EXPLAIN("Invalid character in ipv6 address: " + p_string);
+			ERR_FAIL();
+		};
+		ret = ret << 4;
+		ret += n;
+	};
+
+	p_dst[0] = ret >> 8;
+	p_dst[1] = ret & 0xff;
+};
+
+void IP_Address::_parse_ipv6(const String& p_string) {
+
+	static const int parts_total = 8;
+	int parts[parts_total] = {0};
+	int parts_count = 0;
+	bool part_found = false;
+	bool part_skip = false;
+	bool part_ipv4 = false;
+	int parts_idx = 0;
+
+	for (int i=0; i<p_string.length(); i++) {
+
+		CharType c = p_string[i];
+		if (c == ':') {
+
+			if (i == 0) {
+				continue; // next must be a ":"
+			};
+			if (!part_found) {
+				part_skip = true;
+				parts[parts_idx++] = -1;
+			};
+			part_found = false;
+		} else if (c == '.') {
+
+			part_ipv4 = true;
+
+		} else if ((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F')) {
+			if (!part_found) {
+				parts[parts_idx++] = i;
+				part_found = true;
+				++parts_count;
+			};
+		} else {
+
+			ERR_EXPLAIN("Invalid character in IPv6 address: " + p_string);
+			ERR_FAIL();
+		};
+	};
+
+	int parts_extra = 0;
+	if (part_skip) {
+		parts_extra = parts_total - parts_count;
+	};
+
+	int idx = 0;
+	for (int i=0; i<parts_idx; i++) {
 
-	host=0;
-	int slices = p_string.get_slice_count(".");
+		if (parts[i] == -1) {
+
+			for (int j=0; j<parts_extra; j++) {
+				field16[idx++] = 0;
+			};
+			continue;
+		};
+
+		if (part_ipv4 && i == parts_idx - 1) {
+			_parse_ipv4(p_string, parts[i], (uint8_t*)&field16[idx]); // should be the last one
+		} else {
+			_parse_hex(p_string, parts[i], (uint8_t*)&(field16[idx++]));
+		};
+	};
+
+};
+
+void IP_Address::_parse_ipv4(const String& p_string, int p_start, uint8_t* p_ret) {
+
+	String ip;
+	if (p_start != 0) {
+		ip = p_string.substr(p_start, p_string.length() - p_start);
+	} else {
+		ip = p_string;
+	};
+
+	int slices = ip.get_slice_count(".");
 	if (slices!=4) {
-		ERR_EXPLAIN("Invalid IP Address String: "+p_string);
+		ERR_EXPLAIN("Invalid IP Address String: "+ip);
 		ERR_FAIL();
 	}
 	for(int i=0;i<4;i++) {
-
-		field[i]=p_string.get_slicec('.',i).to_int();
+		p_ret[i]=ip.get_slicec('.',i).to_int();
 	}
+};
+
+void IP_Address::clear() {
+
+	memset(&field8[0], 0, sizeof(field8));
+};
+
+IP_Address::IP_Address(const String& p_string) {
+
+	clear();
+	if (p_string.find(":") >= 0) {
+
+		_parse_ipv6(p_string);
+		type = TYPE_IPV6;
+	} else {
+
+		_parse_ipv4(p_string, 0, &field8[0]);
+		type = TYPE_IPV4;
+	};
 }
 
-IP_Address::IP_Address(uint8_t p_a,uint8_t p_b,uint8_t p_c,uint8_t p_d) {
+_FORCE_INLINE_ static void _32_to_buf(uint8_t* p_dst, uint32_t p_n) {
+
+	p_dst[0] = (p_n >> 24) & 0xff;
+	p_dst[1] = (p_n >> 16) & 0xff;
+	p_dst[2] = (p_n >> 8) & 0xff;
+	p_dst[3] = (p_n >> 0) & 0xff;
+};
+
+IP_Address::IP_Address(uint32_t p_a,uint32_t p_b,uint32_t p_c,uint32_t p_d, IP_Address::AddrType p_type) {
+
+	type = p_type;
+	memset(&field8[0], 0, sizeof(field8));
+	if (p_type == TYPE_IPV4) {
+		field8[0]=p_a;
+		field8[1]=p_b;
+		field8[2]=p_c;
+		field8[3]=p_d;
+	} else if (type == TYPE_IPV6) {
+
+		_32_to_buf(&field8[0], p_a);
+		_32_to_buf(&field8[4], p_b);
+		_32_to_buf(&field8[8], p_c);
+		_32_to_buf(&field8[12], p_d);
+	} else {
+		type = TYPE_NONE;
+		ERR_EXPLAIN("Invalid type specified for IP_Address (use TYPE_IPV4 or TYPE_IPV6");
+		ERR_FAIL();
+	};
 
-	field[0]=p_a;
-	field[1]=p_b;
-	field[2]=p_c;
-	field[3]=p_d;
 }
diff --git a/core/io/ip_address.h b/core/io/ip_address.h
index 129231172..fe13d7061 100644
--- a/core/io/ip_address.h
+++ b/core/io/ip_address.h
@@ -33,22 +33,48 @@
 
 struct IP_Address {
 
+public:
+	enum AddrType {
+		TYPE_NONE = 0,
+		TYPE_IPV4 = 1,
+		TYPE_IPV6 = 2,
+
+		TYPE_ANY = 3,
+	};
+
+	AddrType type;
+
 	union {
-		uint8_t field[4];
-		uint32_t host;
+		uint8_t field8[16];
+		uint16_t field16[8];
+		uint32_t field32[4];
 	};
 
+protected:
+	void _parse_ipv6(const String& p_string);
+	void _parse_ipv4(const String& p_string, int p_start, uint8_t* p_ret);
+
+public:
 	//operator Variant() const;
 	bool operator==(const IP_Address& p_ip) const {
-		return host==p_ip.host;
+		for (int i=0; i<4; i++)
+			if (field32[i] != p_ip.field32[i])
+				return false;
+		return true;
 	}
 	bool operator!=(const IP_Address& p_ip) const {
-		return host!=p_ip.host;
+		for (int i=0; i<4; i++)
+			if (field32[i] != p_ip.field32[i])
+				return true;
+		return false;
 	}
+
+	void clear();
+
 	operator String() const;
 	IP_Address(const String& p_string);
-	IP_Address(uint8_t p_a,uint8_t p_b,uint8_t p_c,uint8_t p_d);
-	IP_Address() { host=0; }
+	IP_Address(uint32_t p_a,uint32_t p_b,uint32_t p_c,uint32_t p_d, AddrType p_type=TYPE_IPV4);
+	IP_Address() { clear(); type=TYPE_NONE; }
 };
 
 
diff --git a/core/io/packet_peer_udp.cpp b/core/io/packet_peer_udp.cpp
index efc619e41..018dc77d9 100644
--- a/core/io/packet_peer_udp.cpp
+++ b/core/io/packet_peer_udp.cpp
@@ -29,14 +29,9 @@
 #include "packet_peer_udp.h"
 #include "io/ip.h"
 
-
 PacketPeerUDP* (*PacketPeerUDP::_create)()=NULL;
 
-int PacketPeerUDP::_get_packet_address() const {
-
-	IP_Address ip = get_packet_address();
-	return ip.host;
-}
+VARIANT_ENUM_CAST(IP_Address::AddrType);
 
 String PacketPeerUDP::_get_packet_ip() const {
 
@@ -65,7 +60,7 @@ void PacketPeerUDP::_bind_methods() {
 	ObjectTypeDB::bind_method(_MD("wait:Error"),&PacketPeerUDP::wait);
 	ObjectTypeDB::bind_method(_MD("is_listening"),&PacketPeerUDP::is_listening);
 	ObjectTypeDB::bind_method(_MD("get_packet_ip"),&PacketPeerUDP::_get_packet_ip);
-	ObjectTypeDB::bind_method(_MD("get_packet_address"),&PacketPeerUDP::_get_packet_address);
+	//ObjectTypeDB::bind_method(_MD("get_packet_address"),&PacketPeerUDP::_get_packet_address);
 	ObjectTypeDB::bind_method(_MD("get_packet_port"),&PacketPeerUDP::get_packet_port);
 	ObjectTypeDB::bind_method(_MD("set_send_address","host","port"),&PacketPeerUDP::_set_send_address);
 
diff --git a/core/io/packet_peer_udp.h b/core/io/packet_peer_udp.h
index 70d92834f..c0806a9e6 100644
--- a/core/io/packet_peer_udp.h
+++ b/core/io/packet_peer_udp.h
@@ -40,14 +40,13 @@ protected:
 	static PacketPeerUDP* (*_create)();
 	static void _bind_methods();
 
-	int _get_packet_address() const;
 	String _get_packet_ip() const;
 
 	virtual Error _set_send_address(const String& p_address,int p_port);
 
 public:
 
-	virtual Error listen(int p_port,int p_recv_buffer_size=65536)=0;
+	virtual Error listen(int p_port, IP_Address::AddrType p_address_type = IP_Address::TYPE_IPV4, int p_recv_buffer_size=65536)=0;
 	virtual void close()=0;
 	virtual Error wait()=0;
 	virtual bool is_listening() const=0;
diff --git a/core/io/pck_packer.cpp b/core/io/pck_packer.cpp
new file mode 100644
index 000000000..04b88ea02
--- /dev/null
+++ b/core/io/pck_packer.cpp
@@ -0,0 +1,191 @@
+/*************************************************************************/
+/*  pkc_packer.cpp                                                       */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+#include "pck_packer.h"
+
+#include "core/os/file_access.h"
+
+static uint64_t _align(uint64_t p_n, int p_alignment) {
+
+	if (p_alignment == 0)
+		return p_n;
+
+	uint64_t rest = p_n % p_alignment;
+	if (rest == 0)
+		return p_n;
+	else
+		return p_n + (p_alignment - rest);
+};
+
+static void _pad(FileAccess* p_file, int p_bytes) {
+
+	for (int i=0; i<p_bytes; i++) {
+
+		p_file->store_8(0);
+	};
+};
+
+void PCKPacker::_bind_methods() {
+
+	ObjectTypeDB::bind_method(_MD("pck_start","pck_name","alignment"),&PCKPacker::pck_start);
+	ObjectTypeDB::bind_method(_MD("add_file","pck_path","source_path"),&PCKPacker::add_file);
+	ObjectTypeDB::bind_method(_MD("flush","verbose"),&PCKPacker::flush);
+};
+
+
+Error PCKPacker::pck_start(const String& p_file, int p_alignment) {
+
+	file = FileAccess::open(p_file, FileAccess::WRITE);
+	if (file == NULL) {
+
+		return ERR_CANT_CREATE;
+	};
+
+	alignment = p_alignment;
+
+	file->store_32(0x43504447); // MAGIC
+	file->store_32(0); // # version
+	file->store_32(0); // # major
+	file->store_32(0); // # minor
+	file->store_32(0); // # revision
+
+	for (int i=0; i<16; i++) {
+
+		file->store_32(0); // reserved
+	};
+
+	files.clear();
+
+	return OK;
+};
+
+Error PCKPacker::add_file(const String& p_file, const String& p_src) {
+
+	FileAccess* f = FileAccess::open(p_src, FileAccess::READ);
+	if (!f) {
+		return ERR_FILE_CANT_OPEN;
+	};
+
+	File pf;
+	pf.path = p_file;
+	pf.src_path = p_src;
+	pf.size = f->get_len();
+	pf.offset_offset = 0;
+
+	files.push_back(pf);
+
+	f->close();
+	memdelete(f);
+
+	return OK;
+};
+
+Error PCKPacker::flush(bool p_verbose) {
+
+	if (!file) {
+		ERR_FAIL_COND_V(!file, ERR_INVALID_PARAMETER);
+		return ERR_INVALID_PARAMETER;
+	};
+
+	// write the index
+
+	file->store_32(files.size());
+
+	for (int i=0; i<files.size(); i++) {
+
+		file->store_pascal_string(files[i].path);
+		files[i].offset_offset = file->get_pos();
+		file->store_64(0); // offset
+		file->store_64(files[i].size); // size
+
+		// # empty md5
+		file->store_32(0);
+		file->store_32(0);
+		file->store_32(0);
+		file->store_32(0);
+	};
+
+
+	uint64_t ofs = file->get_pos();
+	ofs = _align(ofs, alignment);
+
+	_pad(file, ofs - file->get_pos());
+
+	const uint32_t buf_max = 65536;
+	uint8_t *buf = memnew_arr(uint8_t, buf_max);
+
+	int count = 0;
+	for (int i=0; i<files.size(); i++) {
+
+		FileAccess* src = FileAccess::open(files[i].src_path, FileAccess::READ);
+		uint64_t to_write = files[i].size;
+		while (to_write > 0) {
+
+			int read = src->get_buffer(buf, MIN(to_write, buf_max));
+			file->store_buffer(buf, read);
+			to_write -= read;
+		};
+
+		uint64_t pos = file->get_pos();
+		file->seek(files[i].offset_offset); // go back to store the file's offset
+		file->store_64(ofs);
+		file->seek(pos);
+
+		ofs = _align(ofs + files[i].size, alignment);
+		_pad(file, ofs - pos);
+
+		src->close();
+		memdelete(src);
+		count += 1;
+		if (p_verbose) {
+			if (count % 100 == 0) {
+				printf("%i/%i (%.2f)\r", count, files.size(), float(count) / files.size() * 100);
+				fflush(stdout);
+			};
+		};
+	};
+
+	if (p_verbose)
+		printf("\n");
+
+	file->close();
+
+	return OK;
+};
+
+PCKPacker::PCKPacker() {
+
+	file = NULL;
+};
+
+PCKPacker::~PCKPacker() {
+	if (file != NULL) {
+		memdelete(file);
+	};
+	file = NULL;
+};
diff --git a/core/io/pck_packer.h b/core/io/pck_packer.h
new file mode 100644
index 000000000..b1182335e
--- /dev/null
+++ b/core/io/pck_packer.h
@@ -0,0 +1,59 @@
+/*************************************************************************/
+/*  pck_packer.h                                                         */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+#include "core/reference.h"
+
+class FileAccess;
+
+class PCKPacker : public Reference {
+
+	OBJ_TYPE(PCKPacker, Reference);
+
+	FileAccess* file;
+	int alignment;
+
+	static void _bind_methods();
+
+	struct File {
+
+		String path;
+		String src_path;
+		int size;
+		uint64_t offset_offset;
+	};
+	Vector<File> files;
+
+public:
+	Error pck_start(const String& p_file, int p_alignment);
+	Error add_file(const String& p_file, const String& p_src);
+	Error flush(bool p_verbose = false);
+
+
+	PCKPacker();
+	~PCKPacker();
+};
diff --git a/core/io/tcp_server.cpp b/core/io/tcp_server.cpp
index 274d20a48..53d6e900f 100644
--- a/core/io/tcp_server.cpp
+++ b/core/io/tcp_server.cpp
@@ -30,6 +30,8 @@
 
 TCP_Server* (*TCP_Server::_create)()=NULL;
 
+VARIANT_ENUM_CAST(IP_Address::AddrType);
+
 Ref<TCP_Server> TCP_Server::create_ref() {
 
 	if (!_create)
@@ -44,19 +46,19 @@ TCP_Server* TCP_Server::create() {
 	return _create();
 }
 
-Error TCP_Server::_listen(uint16_t p_port,DVector<String> p_accepted_hosts) {
+Error TCP_Server::_listen(uint16_t p_port, IP_Address::AddrType p_type, DVector<String> p_accepted_hosts) {
 
 	List<String> hosts;
 	for(int i=0;i<p_accepted_hosts.size();i++)
 		hosts.push_back(p_accepted_hosts.get(i));
 
-	return listen(p_port,hosts.size()?&hosts:NULL);
+	return listen(p_port,p_type, hosts.size()?&hosts:NULL);
 
 }
 
 void TCP_Server::_bind_methods() {
 
-	ObjectTypeDB::bind_method(_MD("listen","port","accepted_hosts"),&TCP_Server::_listen,DEFVAL(DVector<String>()));
+	ObjectTypeDB::bind_method(_MD("listen","port","accepted_hosts"),&TCP_Server::_listen,DEFVAL(IP_Address::TYPE_IPV4), DEFVAL(DVector<String>()));
 	ObjectTypeDB::bind_method(_MD("is_connection_available"),&TCP_Server::is_connection_available);
 	ObjectTypeDB::bind_method(_MD("take_connection"),&TCP_Server::take_connection);
 	ObjectTypeDB::bind_method(_MD("stop"),&TCP_Server::stop);
diff --git a/core/io/tcp_server.h b/core/io/tcp_server.h
index 512a7e640..883a3ef2f 100644
--- a/core/io/tcp_server.h
+++ b/core/io/tcp_server.h
@@ -41,11 +41,11 @@ protected:
 	static TCP_Server* (*_create)();
 
 	//bind helper
-	Error _listen(uint16_t p_port,DVector<String> p_accepted_hosts=DVector<String>());
+	Error _listen(uint16_t p_port, IP_Address::AddrType p_type = IP_Address::TYPE_IPV4 ,DVector<String> p_accepted_hosts=DVector<String>());
 	static void _bind_methods();
 public:
 
-	virtual Error listen(uint16_t p_port,const List<String> *p_accepted_hosts=NULL)=0;
+	virtual Error listen(uint16_t p_port, IP_Address::AddrType p_type = IP_Address::TYPE_IPV4, const List<String> *p_accepted_hosts=NULL)=0;
 	virtual bool is_connection_available() const=0;
 	virtual Ref<StreamPeerTCP> take_connection()=0;
 
diff --git a/core/math/SCsub b/core/math/SCsub
index 7b4a6acbc..c2731d60e 100644
--- a/core/math/SCsub
+++ b/core/math/SCsub
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 Import('env')
 
 env.add_source_files(env.core_sources,"*.cpp")
diff --git a/core/math/math_2d.cpp b/core/math/math_2d.cpp
index 0e2060008..e616f0591 100644
--- a/core/math/math_2d.cpp
+++ b/core/math/math_2d.cpp
@@ -424,7 +424,7 @@ Matrix32 Matrix32::inverse() const {
 
 void Matrix32::affine_invert() {
 
-	float det = elements[0][0]*elements[1][1] - elements[1][0]*elements[0][1];
+	float det = basis_determinant();
 	ERR_FAIL_COND(det==0);
 	float idet = 1.0 / det;
 
@@ -475,18 +475,18 @@ Matrix32::Matrix32(real_t p_rot, const Vector2& p_pos) {
 	elements[2]=p_pos;
 }
 
-Vector2 Matrix32::get_scale() const {
+Size2 Matrix32::get_scale() const {
 
-	return Vector2( elements[0].length(), elements[1].length() );
+	return Size2( elements[0].length(), elements[1].length() );
 }
 
-void Matrix32::scale(const Vector2& p_scale) {
+void Matrix32::scale(const Size2& p_scale) {
 
 	elements[0]*=p_scale;
 	elements[1]*=p_scale;
 	elements[2]*=p_scale;
 }
-void Matrix32::scale_basis(const Vector2& p_scale) {
+void Matrix32::scale_basis(const Size2& p_scale) {
 
 	elements[0]*=p_scale;
 	elements[1]*=p_scale;
@@ -501,7 +501,6 @@ void Matrix32::translate( const Vector2& p_translation ) {
 	elements[2]+=basis_xform(p_translation);
 }
 
-
 void Matrix32::orthonormalize() {
 
 	// Gram-Schmidt Process
@@ -550,11 +549,6 @@ void Matrix32::operator*=(const Matrix32& p_transform) {
 	elements[2] = xform(p_transform.elements[2]);
 
 	float x0,x1,y0,y1;
-/*
-	x0 = p_transform.tdotx(elements[0]);
-	x1 = p_transform.tdoty(elements[0]);
-	y0 = p_transform.tdotx(elements[1]);
-	y1 = p_transform.tdoty(elements[1]);*/
 
 	x0 = tdotx(p_transform.elements[0]);
 	x1 = tdoty(p_transform.elements[0]);
@@ -576,7 +570,7 @@ Matrix32 Matrix32::operator*(const Matrix32& p_transform) const {
 
 }
 
-Matrix32 Matrix32::scaled(const Vector2& p_scale) const {
+Matrix32 Matrix32::scaled(const Size2& p_scale) const {
 
 	Matrix32 copy=*this;
 	copy.scale(p_scale);
@@ -584,7 +578,7 @@ Matrix32 Matrix32::scaled(const Vector2& p_scale) const {
 
 }
 
-Matrix32 Matrix32::basis_scaled(const Vector2& p_scale) const {
+Matrix32 Matrix32::basis_scaled(const Size2& p_scale) const {
 
 	Matrix32 copy=*this;
 	copy.scale_basis(p_scale);
@@ -629,8 +623,8 @@ Matrix32 Matrix32::interpolate_with(const Matrix32& p_transform, float p_c) cons
 	real_t r1 = get_rotation();
 	real_t r2 = p_transform.get_rotation();
 
-	Vector2 s1 = get_scale();
-	Vector2 s2 = p_transform.get_scale();
+	Size2 s1 = get_scale();
+	Size2 s2 = p_transform.get_scale();
 
 	//slerp rotation
 	Vector2 v1(Math::cos(r1), Math::sin(r1));
diff --git a/core/math/math_2d.h b/core/math/math_2d.h
index 90aae9fe5..38c1ac965 100644
--- a/core/math/math_2d.h
+++ b/core/math/math_2d.h
@@ -553,10 +553,8 @@ struct Rect2i {
 
 struct Matrix32 {
 
-
 	Vector2 elements[3];
 
-
 	_FORCE_INLINE_ float tdotx(const Vector2& v) const { return elements[0][0] * v.x + elements[1][0] * v.y; }
 	_FORCE_INLINE_ float tdoty(const Vector2& v) const { return elements[0][1] * v.x + elements[1][1] * v.y; }
 
@@ -577,26 +575,25 @@ struct Matrix32 {
 	_FORCE_INLINE_ void set_rotation_and_scale(real_t p_phi,const Size2& p_scale);
 	void rotate(real_t p_phi);
 
-	void scale(const Vector2& p_scale);
-	void scale_basis(const Vector2& p_scale);
+	void scale(const Size2& p_scale);
+	void scale_basis(const Size2& p_scale);
 	void translate( real_t p_tx, real_t p_ty);
 	void translate( const Vector2& p_translation );
 
 	float basis_determinant() const;
 
-	Vector2 get_scale() const;
+	Size2 get_scale() const;
 
 	_FORCE_INLINE_ const Vector2& get_origin() const { return elements[2]; }
 	_FORCE_INLINE_ void set_origin(const Vector2& p_origin) { elements[2]=p_origin; }
 
-	Matrix32 scaled(const Vector2& p_scale) const;
-	Matrix32 basis_scaled(const Vector2& p_scale) const;
+	Matrix32 scaled(const Size2& p_scale) const;
+	Matrix32 basis_scaled(const Size2& p_scale) const;
 	Matrix32 translated(const Vector2& p_offset) const;
 	Matrix32 rotated(float p_phi) const;
 
 	Matrix32 untranslated() const;
 
-
 	void orthonormalize();
 	Matrix32 orthonormalized() const;
 
@@ -615,7 +612,6 @@ struct Matrix32 {
 	_FORCE_INLINE_ Rect2 xform(const Rect2& p_vec) const;
 	_FORCE_INLINE_ Rect2 xform_inv(const Rect2& p_vec) const;
 
-
 	operator String() const;
 
 	Matrix32(real_t xx, real_t xy, real_t yx, real_t yy, real_t ox, real_t oy) {
@@ -630,7 +626,6 @@ struct Matrix32 {
 
 	Matrix32(real_t p_rot, const Vector2& p_pos);
 	Matrix32() { elements[0][0]=1.0; elements[1][1]=1.0; }
-
 };
 
 bool Rect2::intersects_transformed(const Matrix32& p_xform, const Rect2& p_rect) const {
diff --git a/core/math/math_funcs.cpp b/core/math/math_funcs.cpp
index 64615fe6b..46c021870 100644
--- a/core/math/math_funcs.cpp
+++ b/core/math/math_funcs.cpp
@@ -41,37 +41,16 @@ static uint32_t Q[4096];
 #endif
 
 uint32_t Math::rand_from_seed(uint32_t *seed) {
-
-#if 1
-	uint32_t k;
-	uint32_t s = (*seed);
-	if (s == 0)
-		s = 0x12345987;
-	k = s / 127773;
-	s = 16807 * (s - k * 127773) - 2836 * k;
-//	if (s < 0)
-//		s += 2147483647;
-	(*seed) = s;
-	return (s & Math::RANDOM_MAX);
-#else
-	*seed = *seed * 1103515245 + 12345;
-	return (*seed % ((unsigned int)RANDOM_MAX + 1));
-#endif
+	// Xorshift31 PRNG
+	if ( *seed == 0 ) *seed = Math::RANDOM_MAX;
+	(*seed) ^= (*seed) << 13;
+	(*seed) ^= (*seed) >> 17;
+	(*seed) ^= (*seed) << 5;
+	return (*seed) & Math::RANDOM_MAX;
 }
 
 void Math::seed(uint32_t x) {
-#if 0
-	int i;
-
-	Q[0] = x;
-	Q[1] = x + PHI;
-	Q[2] = x + PHI + PHI;
-
-	for (i = 3; i < 4096; i++)
-		Q[i] = Q[i - 3] ^ Q[i - 2] ^ PHI ^ i;
-#else
 	default_seed=x;
-#endif
 }
 
 void Math::randomize() {
@@ -82,12 +61,12 @@ void Math::randomize() {
 
 uint32_t Math::rand() {
 
-	return rand_from_seed(&default_seed)&0x7FFFFFFF;
+	return rand_from_seed(&default_seed);
 }
 
 double Math::randf() {
 
-	return (double)rand() / (double)RANDOM_MAX;
+	return (double)rand() / (double)Math::RANDOM_MAX;
 }
 
 double Math::sin(double p_x) {
diff --git a/core/math/vector3.cpp b/core/math/vector3.cpp
index b4a13d8f6..fae3831dd 100644
--- a/core/math/vector3.cpp
+++ b/core/math/vector3.cpp
@@ -49,13 +49,13 @@ void Vector3::set_axis(int p_axis,real_t p_value) {
 }
 real_t Vector3::get_axis(int p_axis) const {
 
-        ERR_FAIL_INDEX_V(p_axis,3,0);
-        return operator[](p_axis);
+	ERR_FAIL_INDEX_V(p_axis,3,0);
+	return operator[](p_axis);
 }
 
 int Vector3::min_axis() const {
 
-        return x < y ? (x < z ? 0 : 2) : (y < z ? 1 : 2);
+	return x < y ? (x < z ? 0 : 2) : (y < z ? 1 : 2);
 }
 int Vector3::max_axis() const {
 
@@ -71,9 +71,9 @@ void Vector3::snap(float p_val) {
 }
 Vector3 Vector3::snapped(float p_val) const {
 
-        Vector3 v=*this;
-        v.snap(p_val);
-        return v;
+	Vector3 v=*this;
+	v.snap(p_val);
+	return v;
 }
 
 
diff --git a/core/math/vector3.h b/core/math/vector3.h
index 910446023..06840be5e 100644
--- a/core/math/vector3.h
+++ b/core/math/vector3.h
@@ -63,77 +63,78 @@ struct Vector3 {
 		return coord[p_axis];
 	}
 
-        void set_axis(int p_axis,real_t p_value);
-        real_t get_axis(int p_axis) const;
+	void set_axis(int p_axis,real_t p_value);
+	real_t get_axis(int p_axis) const;
 
-        int min_axis() const;
-        int max_axis() const;
+	int min_axis() const;
+	int max_axis() const;
 
-        _FORCE_INLINE_ real_t length() const;
-        _FORCE_INLINE_ real_t length_squared() const;
+	_FORCE_INLINE_ real_t length() const;
+	_FORCE_INLINE_ real_t length_squared() const;
 
-        _FORCE_INLINE_ void normalize();
-        _FORCE_INLINE_ Vector3 normalized() const;
-        _FORCE_INLINE_ Vector3 inverse() const;
+	_FORCE_INLINE_ void normalize();
+	_FORCE_INLINE_ Vector3 normalized() const;
+	_FORCE_INLINE_ Vector3 inverse() const;
 
 	_FORCE_INLINE_ void zero();
 
-        void snap(float p_val);
-        Vector3 snapped(float p_val) const;
+	void snap(float p_val);
+	Vector3 snapped(float p_val) const;
 
 	void rotate(const Vector3& p_axis,float p_phi);
 	Vector3 rotated(const Vector3& p_axis,float p_phi) const;
 
-        /* Static Methods between 2 vector3s */
+	/* Static Methods between 2 vector3s */
 
-        _FORCE_INLINE_ Vector3 linear_interpolate(const Vector3& p_b,float p_t) const;
+	_FORCE_INLINE_ Vector3 linear_interpolate(const Vector3& p_b,float p_t) const;
 	Vector3 cubic_interpolate(const Vector3& p_b,const Vector3& p_pre_a, const Vector3& p_post_b,float p_t) const;
 	Vector3 cubic_interpolaten(const Vector3& p_b,const Vector3& p_pre_a, const Vector3& p_post_b,float p_t) const;
 
-        _FORCE_INLINE_ Vector3 cross(const Vector3& p_b) const;
-        _FORCE_INLINE_ real_t dot(const Vector3& p_b) const;
+	_FORCE_INLINE_ Vector3 cross(const Vector3& p_b) const;
+	_FORCE_INLINE_ real_t dot(const Vector3& p_b) const;
 
-        _FORCE_INLINE_ Vector3 abs() const;
-		_FORCE_INLINE_ Vector3 floor() const;
-		_FORCE_INLINE_ Vector3 ceil() const;
+	_FORCE_INLINE_ Vector3 abs() const;
+	_FORCE_INLINE_ Vector3 floor() const;
+	_FORCE_INLINE_ Vector3 ceil() const;
 
-        _FORCE_INLINE_ real_t distance_to(const Vector3& p_b) const;
-        _FORCE_INLINE_ real_t distance_squared_to(const Vector3& p_b) const;
+	_FORCE_INLINE_ real_t distance_to(const Vector3& p_b) const;
+	_FORCE_INLINE_ real_t distance_squared_to(const Vector3& p_b) const;
 
+	_FORCE_INLINE_ real_t angle_to(const Vector3& p_b) const;
 
 
 	_FORCE_INLINE_ Vector3 slide(const Vector3& p_vec) const;
 	_FORCE_INLINE_ Vector3 reflect(const Vector3& p_vec) const;
 
 
-        /* Operators */
+	/* Operators */
 
-        _FORCE_INLINE_ Vector3& operator+=(const Vector3& p_v);
-        _FORCE_INLINE_ Vector3 operator+(const Vector3& p_v) const;
-        _FORCE_INLINE_ Vector3& operator-=(const Vector3& p_v);
-        _FORCE_INLINE_ Vector3 operator-(const Vector3& p_v) const;
-        _FORCE_INLINE_ Vector3& operator*=(const Vector3& p_v);
-        _FORCE_INLINE_ Vector3 operator*(const Vector3& p_v) const;
-        _FORCE_INLINE_ Vector3& operator/=(const Vector3& p_v);
-        _FORCE_INLINE_ Vector3 operator/(const Vector3& p_v) const;
+	_FORCE_INLINE_ Vector3& operator+=(const Vector3& p_v);
+	_FORCE_INLINE_ Vector3 operator+(const Vector3& p_v) const;
+	_FORCE_INLINE_ Vector3& operator-=(const Vector3& p_v);
+	_FORCE_INLINE_ Vector3 operator-(const Vector3& p_v) const;
+	_FORCE_INLINE_ Vector3& operator*=(const Vector3& p_v);
+	_FORCE_INLINE_ Vector3 operator*(const Vector3& p_v) const;
+	_FORCE_INLINE_ Vector3& operator/=(const Vector3& p_v);
+	_FORCE_INLINE_ Vector3 operator/(const Vector3& p_v) const;
 
 
-        _FORCE_INLINE_ Vector3& operator*=(real_t p_scalar);
-        _FORCE_INLINE_ Vector3 operator*(real_t p_scalar) const;
-        _FORCE_INLINE_ Vector3& operator/=(real_t p_scalar);
-        _FORCE_INLINE_ Vector3 operator/(real_t p_scalar) const;
+	_FORCE_INLINE_ Vector3& operator*=(real_t p_scalar);
+	_FORCE_INLINE_ Vector3 operator*(real_t p_scalar) const;
+	_FORCE_INLINE_ Vector3& operator/=(real_t p_scalar);
+	_FORCE_INLINE_ Vector3 operator/(real_t p_scalar) const;
 
-        _FORCE_INLINE_ Vector3 operator-() const;
+	_FORCE_INLINE_ Vector3 operator-() const;
 
-        _FORCE_INLINE_ bool operator==(const Vector3& p_v) const;
-        _FORCE_INLINE_ bool operator!=(const Vector3& p_v) const;
-        _FORCE_INLINE_ bool operator<(const Vector3& p_v) const;
+	_FORCE_INLINE_ bool operator==(const Vector3& p_v) const;
+	_FORCE_INLINE_ bool operator!=(const Vector3& p_v) const;
+	_FORCE_INLINE_ bool operator<(const Vector3& p_v) const;
 	_FORCE_INLINE_ bool operator<=(const Vector3& p_v) const;
 
 	operator String() const;
 
-       _FORCE_INLINE_ Vector3() { x=y=z=0; }
-        _FORCE_INLINE_ Vector3(real_t p_x,real_t p_y,real_t p_z) { x=p_x; y=p_y; z=p_z; }
+	_FORCE_INLINE_ Vector3() { x=y=z=0; }
+	_FORCE_INLINE_ Vector3(real_t p_x,real_t p_y,real_t p_z) { x=p_x; y=p_y; z=p_z; }
 
 };
 
@@ -151,11 +152,12 @@ Vector3 Vector3::cross(const Vector3& p_b) const {
 		(x * p_b.y) - (y * p_b.x)
 	);
 
-        return ret;
+	return ret;
 }
+
 real_t Vector3::dot(const Vector3& p_b) const {
 
-        return x*p_b.x + y*p_b.y + z*p_b.z;
+	return x*p_b.x + y*p_b.y + z*p_b.z;
 }
 
 Vector3 Vector3::abs() const {
@@ -180,115 +182,119 @@ Vector3 Vector3::linear_interpolate(const Vector3& p_b,float p_t) const {
 		y+(p_t * (p_b.y-y)),
 		z+(p_t * (p_b.z-z))
 	);
-
 }
 
-
-
 real_t Vector3::distance_to(const Vector3& p_b) const {
+
 	return (p_b-*this).length();
 }
+
 real_t Vector3::distance_squared_to(const Vector3& p_b) const {
 
-        return (p_b-*this).length_squared();
+	return (p_b-*this).length_squared();
+}
+
+real_t Vector3::angle_to(const Vector3& p_b) const {
+
+	return Math::acos(this->dot(p_b) / Math::sqrt(this->length_squared() * p_b.length_squared()));
 }
 
 /* Operators */
 
 Vector3& Vector3::operator+=(const Vector3& p_v) {
 
-        x+=p_v.x;
-        y+=p_v.y;
-        z+=p_v.z;
-        return *this;
+	x+=p_v.x;
+	y+=p_v.y;
+	z+=p_v.z;
+	return *this;
 }
+
 Vector3 Vector3::operator+(const Vector3& p_v) const {
 
-        return Vector3(x+p_v.x, y+p_v.y, z+ p_v.z);
+	return Vector3(x+p_v.x, y+p_v.y, z+ p_v.z);
 }
 
 Vector3& Vector3::operator-=(const Vector3& p_v) {
 
-        x-=p_v.x;
-        y-=p_v.y;
-        z-=p_v.z;
-        return *this;
+	x-=p_v.x;
+	y-=p_v.y;
+	z-=p_v.z;
+	return *this;
 }
 Vector3 Vector3::operator-(const Vector3& p_v) const {
 
-        return Vector3(x-p_v.x, y-p_v.y, z- p_v.z);
+	return Vector3(x-p_v.x, y-p_v.y, z- p_v.z);
 }
 
-
-
 Vector3& Vector3::operator*=(const Vector3& p_v) {
 
-        x*=p_v.x;
-        y*=p_v.y;
-        z*=p_v.z;
-        return *this;
+	x*=p_v.x;
+	y*=p_v.y;
+	z*=p_v.z;
+	return *this;
 }
 Vector3 Vector3::operator*(const Vector3& p_v) const {
 
-        return Vector3(x*p_v.x, y*p_v.y, z* p_v.z);
+	return Vector3(x*p_v.x, y*p_v.y, z* p_v.z);
 }
 
 Vector3& Vector3::operator/=(const Vector3& p_v) {
 
-        x/=p_v.x;
-        y/=p_v.y;
-        z/=p_v.z;
-        return *this;
+	x/=p_v.x;
+	y/=p_v.y;
+	z/=p_v.z;
+	return *this;
 }
+
 Vector3 Vector3::operator/(const Vector3& p_v) const {
 
-        return Vector3(x/p_v.x, y/p_v.y, z/ p_v.z);
+	return Vector3(x/p_v.x, y/p_v.y, z/ p_v.z);
 }
 
 Vector3& Vector3::operator*=(real_t p_scalar) {
-        x*=p_scalar;
-        y*=p_scalar;
-        z*=p_scalar;
-        return *this;
 
+	x*=p_scalar;
+	y*=p_scalar;
+	z*=p_scalar;
+	return *this;
 }
 
 _FORCE_INLINE_ Vector3 operator*(real_t p_scalar, const Vector3& p_vec) {
+
 	return p_vec * p_scalar;
 }
 
 Vector3 Vector3::operator*(real_t p_scalar) const {
 
-        return Vector3( x*p_scalar, y*p_scalar, z*p_scalar);
+	return Vector3( x*p_scalar, y*p_scalar, z*p_scalar);
 }
 
 Vector3& Vector3::operator/=(real_t p_scalar) {
-        x/=p_scalar;
-        y/=p_scalar;
-        z/=p_scalar;
-        return *this;
 
+	x/=p_scalar;
+	y/=p_scalar;
+	z/=p_scalar;
+	return *this;
 }
 
 Vector3 Vector3::operator/(real_t p_scalar) const {
 
-        return Vector3( x/p_scalar, y/p_scalar, z/p_scalar);
+	return Vector3( x/p_scalar, y/p_scalar, z/p_scalar);
 }
 
 Vector3 Vector3::operator-() const {
 
-        return Vector3( -x, -y, -z );
+	return Vector3( -x, -y, -z );
 }
 
-
 bool Vector3::operator==(const Vector3& p_v) const {
 
-        return (x==p_v.x && y==p_v.y && z==p_v.z);
+	return (x==p_v.x && y==p_v.y && z==p_v.z);
 }
 
 bool Vector3::operator!=(const Vector3& p_v) const {
 
-        return (x!=p_v.x || y!=p_v.y || z!=p_v.z);
+	return (x!=p_v.x || y!=p_v.y || z!=p_v.z);
 }
 
 bool Vector3::operator<(const Vector3& p_v) const {
@@ -298,9 +304,9 @@ bool Vector3::operator<(const Vector3& p_v) const {
 			return z<p_v.z;
 		else
 			return y<p_v.y;
-	} else
+	} else {
 		return x<p_v.x;
-
+	}
 }
 
 bool Vector3::operator<=(const Vector3& p_v) const {
@@ -310,9 +316,9 @@ bool Vector3::operator<=(const Vector3& p_v) const {
 			return z<=p_v.z;
 		else
 			return y<p_v.y;
-	} else
+	} else {
 		return x<p_v.x;
-
+	}
 }
 
 _FORCE_INLINE_ Vector3 vec3_cross(const Vector3& p_a, const Vector3& p_b) {
@@ -333,6 +339,7 @@ real_t Vector3::length() const {
 
 	return Math::sqrt(x2+y2+z2);
 }
+
 real_t Vector3::length_squared() const {
 
 	real_t x2=x*x;
@@ -340,27 +347,25 @@ real_t Vector3::length_squared() const {
 	real_t z2=z*z;
 
 	return x2+y2+z2;
-
 }
 
 void Vector3::normalize() {
 
-        real_t l=length();
-        if (l==0) {
-
+	real_t l=length();
+	if (l==0) {
 		x=y=z=0;
-        } else {
-
+	} else {
 		x/=l;
 		y/=l;
 		z/=l;
-        }
+	}
 }
+
 Vector3 Vector3::normalized() const {
 
-        Vector3 v=*this;
-        v.normalize();
-        return v;
+	Vector3 v=*this;
+	v.normalize();
+	return v;
 }
 
 Vector3 Vector3::inverse() const {
@@ -377,10 +382,10 @@ Vector3 Vector3::slide(const Vector3& p_vec) const {
 
 	return p_vec - *this * this->dot(p_vec);
 }
+
 Vector3 Vector3::reflect(const Vector3& p_vec) const {
 
 	return p_vec - *this * this->dot(p_vec) * 2.0;
-
 }
 
 #endif
diff --git a/core/object.cpp b/core/object.cpp
index 8cd4e0709..9a1e9be8d 100644
--- a/core/object.cpp
+++ b/core/object.cpp
@@ -1215,6 +1215,15 @@ void Object::emit_signal(const StringName& p_name,const Variant** p_args,int p_a
 
 	Signal *s = signal_map.getptr(p_name);
 	if (!s) {
+#ifdef DEBUG_ENABLED
+		bool signal_is_valid = ObjectTypeDB::has_signal(get_type_name(),p_name);
+		//check in script
+		if (!signal_is_valid && !script.is_null() && !Ref<Script>(script)->has_script_signal(p_name)) {
+			ERR_EXPLAIN("Can't emit non-existing signal " + String("\"")+p_name+"\".");
+			ERR_FAIL();
+		}
+#endif
+		//not connected? just return
 		return;
 	}
 
diff --git a/core/os/SCsub b/core/os/SCsub
index 7b4a6acbc..c2731d60e 100644
--- a/core/os/SCsub
+++ b/core/os/SCsub
@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 Import('env')
 
 env.add_source_files(env.core_sources,"*.cpp")
diff --git a/core/os/input.cpp b/core/os/input.cpp
index 401ab7ffe..4ab57a84e 100644
--- a/core/os/input.cpp
+++ b/core/os/input.cpp
@@ -64,6 +64,10 @@ void Input::_bind_methods() {
 	ObjectTypeDB::bind_method(_MD("get_connected_joysticks"),&Input::get_connected_joysticks);
 	ObjectTypeDB::bind_method(_MD("get_joy_vibration_strength", "device"), &Input::get_joy_vibration_strength);
 	ObjectTypeDB::bind_method(_MD("get_joy_vibration_duration", "device"), &Input::get_joy_vibration_duration);
+	ObjectTypeDB::bind_method(_MD("get_joy_button_string", "button_index"), &Input::get_joy_button_string);
+	ObjectTypeDB::bind_method(_MD("get_joy_button_index_from_string", "button"), &Input::get_joy_button_index_from_string);
+	ObjectTypeDB::bind_method(_MD("get_joy_axis_string", "axis_index"), &Input::get_joy_axis_string);
+	ObjectTypeDB::bind_method(_MD("get_joy_axis_index_from_string", "axis"), &Input::get_joy_axis_index_from_string);
 	ObjectTypeDB::bind_method(_MD("start_joy_vibration", "device", "weak_magnitude", "strong_magnitude", "duration"), &Input::start_joy_vibration, DEFVAL(0));
 	ObjectTypeDB::bind_method(_MD("stop_joy_vibration", "device"), &Input::stop_joy_vibration);
 	ObjectTypeDB::bind_method(_MD("get_accelerometer"),&Input::get_accelerometer);
@@ -90,7 +94,7 @@ void Input::get_argument_options(const StringName& p_function,int p_idx,List<Str
 #ifdef TOOLS_ENABLED
 
 	String pf=p_function;
-	if (p_idx==0 && (pf=="is_action_pressed" || pf=="action_press" || pf=="action_release")) {
+	if (p_idx==0 && (pf=="is_action_pressed" || pf=="action_press" || pf=="action_release" || pf=="is_action_just_pressed" || pf=="is_action_just_released")) {
 
 		List<PropertyInfo> pinfo;
 		Globals::get_singleton()->get_property_list(&pinfo);
diff --git a/core/os/input.h b/core/os/input.h
index 665fb4ad9..d8f3be09d 100644
--- a/core/os/input.h
+++ b/core/os/input.h
@@ -96,6 +96,11 @@ public:
 	virtual void set_custom_mouse_cursor(const RES& p_cursor,const Vector2& p_hotspot=Vector2())=0;
 	virtual void set_mouse_in_window(bool p_in_window)=0;
 
+	virtual String get_joy_button_string(int p_button)=0;
+	virtual String get_joy_axis_string(int p_axis)=0;
+	virtual int    get_joy_button_index_from_string(String p_button)=0;
+	virtual int    get_joy_axis_index_from_string(String p_axis)=0;
+
 	Input();
 };
 
diff --git a/core/os/input_event.cpp b/core/os/input_event.cpp
index 9982767be..7350be824 100644
--- a/core/os/input_event.cpp
+++ b/core/os/input_event.cpp
@@ -50,7 +50,8 @@ bool InputEvent::operator==(const InputEvent &p_event) const {
 		case MOUSE_MOTION:
 			return mouse_motion.x == p_event.mouse_motion.x
 				&& mouse_motion.y == p_event.mouse_motion.y
-				&& mouse_motion.relative_x == p_event.mouse_motion.relative_y
+				&& mouse_motion.relative_x == p_event.mouse_motion.relative_x
+				&& mouse_motion.relative_y == p_event.mouse_motion.relative_y
 				&& mouse_motion.button_mask == p_event.mouse_motion.button_mask
 				&& key.mod == p_event.key.mod;
 		case MOUSE_BUTTON:
diff --git a/core/os/os.h b/core/os/os.h
index 8e9293b3c..c2b46a542 100644
--- a/core/os/os.h
+++ b/core/os/os.h
@@ -372,6 +372,7 @@ public:
 	virtual void set_screen_orientation(ScreenOrientation p_orientation);
 	ScreenOrientation get_screen_orientation() const;
 
+	virtual void enable_for_stealing_focus(ProcessID pid) {}
 	virtual void move_window_to_foreground() {}
 
 	virtual void debug_break();
diff --git a/core/register_core_types.cpp b/core/register_core_types.cpp
index 7e4ba039c..c3a127afb 100644
--- a/core/register_core_types.cpp
+++ b/core/register_core_types.cpp
@@ -49,6 +49,7 @@
 #include "os/input.h"
 #include "core/io/xml_parser.h"
 #include "io/http_client.h"
+#include "io/pck_packer.h"
 #include "packed_data_container.h"
 #include "func_ref.h"
 #include "input_map.h"
@@ -146,6 +147,8 @@ void register_core_types() {
 
 	ObjectTypeDB::register_type<ConfigFile>();
 
+	ObjectTypeDB::register_type<PCKPacker>();
+
 	ObjectTypeDB::register_type<PackedDataContainer>();
 	ObjectTypeDB::register_virtual_type<PackedDataContainerRef>();
 	ObjectTypeDB::register_type<AStar>();
diff --git a/core/script_debugger_remote.cpp b/core/script_debugger_remote.cpp
index 1ac090796..6d685d3c4 100644
--- a/core/script_debugger_remote.cpp
+++ b/core/script_debugger_remote.cpp
@@ -134,6 +134,8 @@ void ScriptDebuggerRemote::debug(ScriptLanguage *p_script,bool p_can_continue) {
 		ERR_FAIL();
 	}
 
+	OS::get_singleton()->enable_for_stealing_focus(Globals::get_singleton()->get("editor_pid"));
+
 	packet_peer_stream->put_var("debug_enter");
 	packet_peer_stream->put_var(2);
 	packet_peer_stream->put_var(p_can_continue);
@@ -273,6 +275,7 @@ void ScriptDebuggerRemote::debug(ScriptLanguage *p_script,bool p_can_continue) {
 
 				set_depth(-1);
 				set_lines_left(-1);
+				OS::get_singleton()->move_window_to_foreground();
 				break;
 			} else if (command=="break") {
 				ERR_PRINT("Got break when already broke!");
diff --git a/core/translation.cpp b/core/translation.cpp
index 4592d0059..4d81073fe 100644
--- a/core/translation.cpp
+++ b/core/translation.cpp
@@ -779,6 +779,11 @@ Vector<String> TranslationServer::get_all_locale_names(){
 }
 
 
+static String get_trimmed_locale(const String& p_locale) {
+
+	return p_locale.substr(0,2);
+}
+
 static bool is_valid_locale(const String& p_locale) {
 
 	const char **ptr=locale_list;
@@ -839,9 +844,20 @@ void Translation::_set_messages(const DVector<String>& p_messages){
 
 void Translation::set_locale(const String& p_locale) {
 
-	ERR_EXPLAIN("Invalid Locale: "+p_locale);
-	ERR_FAIL_COND(!is_valid_locale(p_locale));
-	locale=p_locale;
+	// replaces '-' with '_' for macOS Sierra-style locales
+	String univ_locale = p_locale.replace("-", "_");
+	
+	if(!is_valid_locale(univ_locale)) {
+		String trimmed_locale = get_trimmed_locale(univ_locale);
+		
+		ERR_EXPLAIN("Invalid Locale: "+trimmed_locale);
+		ERR_FAIL_COND(!is_valid_locale(trimmed_locale));
+		
+		locale=trimmed_locale;
+	}
+	else {
+		locale=univ_locale;
+	}
 }
 
 void Translation::add_message( const StringName& p_src_text, const StringName& p_xlated_text ) {
@@ -906,9 +922,20 @@ Translation::Translation() {
 
 void TranslationServer::set_locale(const String& p_locale) {
 
-	ERR_EXPLAIN("Invalid Locale: "+p_locale);
-	ERR_FAIL_COND(!is_valid_locale(p_locale));
-	locale=p_locale;
+	// replaces '-' with '_' for macOS Sierra-style locales
+	String univ_locale = p_locale.replace("-", "_");
+	
+	if(!is_valid_locale(univ_locale)) {
+		String trimmed_locale = get_trimmed_locale(univ_locale);
+		
+		ERR_EXPLAIN("Invalid Locale: "+trimmed_locale);
+		ERR_FAIL_COND(!is_valid_locale(trimmed_locale));
+		
+		locale=trimmed_locale;
+	}
+	else {
+		locale=univ_locale;
+	}
 }
 
 String TranslationServer::get_locale() const {
diff --git a/core/ustring.cpp b/core/ustring.cpp
index 0d887210c..f9c10615b 100644
--- a/core/ustring.cpp
+++ b/core/ustring.cpp
@@ -1543,11 +1543,11 @@ String::String(const StrRange& p_range) {
 	copy_from(p_range.c_str,p_range.len);
 }
 
-int String::hex_to_int() const {
+int String::hex_to_int(bool p_with_prefix) const {
 
     int l = length();
-    if (l<3)
-           return 0;
+	if (p_with_prefix && l<3)
+		return 0;
 
     const CharType *s=ptr();
 
@@ -1556,15 +1556,16 @@ int String::hex_to_int() const {
     if (sign<0) {
         s++;
         l--;
-        if (l<2)
+		if (p_with_prefix && l<2)
             return 0;
     }
 
-    if (s[0]!='0' || s[1]!='x')
-           return 0;
-
-    s+=2;
-    l-=2;
+	if (p_with_prefix) {
+		if (s[0]!='0' || s[1]!='x')
+			return 0;
+		s+=2;
+		l-=2;
+	};
 
     int hex=0;
 
@@ -3073,6 +3074,11 @@ String String::simplify_path() const {
 	}
 
 	s =s.replace("\\","/");
+	while(true){ // in case of using 2 or more slash
+		String compare = s.replace("//","/");
+		if (s==compare) break;
+		else s=compare;
+	}
 	Vector<String> dirs = s.split("/",false);
 
 	for(int i=0;i<dirs.size();i++) {
@@ -3173,7 +3179,7 @@ bool String::is_valid_identifier() const {
 
 //kind of poor should be rewritten properly
 
-String String::world_wrap(int p_chars_per_line) const {
+String String::word_wrap(int p_chars_per_line) const {
 
 	int from=0;
 	int last_space=0;
@@ -3505,6 +3511,36 @@ bool String::is_valid_integer() const {
 
 }
 
+bool String::is_valid_hex_number(bool p_with_prefix) const {
+
+	int from = 0;
+	int len = length();
+
+	if (len!=1 && (operator[](0)=='+' || operator[](0)=='-'))
+		from++;
+
+	if (p_with_prefix) {
+
+		if (len < 2)
+			return false;
+		if (operator[](from) != '0' || operator[](from+1) != 'x') {
+			return false;
+		};
+		from += 2;
+	};
+
+	for (int i=from; i<len; i++) {
+
+		CharType c = operator[](i);
+		if ((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F'))
+			continue;
+		return false;
+	};
+
+	return true;
+};
+
+
 bool String::is_valid_float() const {
 
 	int len = length();
@@ -3641,20 +3677,41 @@ bool String::is_valid_html_color() const {
 
 }
 
+
 bool String::is_valid_ip_address() const {
 
-	Vector<String> ip = split(".");
-	if (ip.size()!=4)
-		return false;
-	for(int i=0;i<ip.size();i++) {
+	if (find(":") >= 0) {
 
-		String n = ip[i];
-		if (!n.is_valid_integer())
-			return false;
-		int val = n.to_int();
-		if (val<0 || val>255)
+		Vector<String> ip = split(":");
+		for (int i=0; i<ip.size(); i++) {
+
+			String n = ip[i];
+			if (n.empty())
+				continue;
+			if (n.is_valid_hex_number(false)) {
+				int nint = n.hex_to_int(false);
+				if (nint < 0 || nint > 0xffff)
+					return false;
+				continue;
+			};
+			if (!n.is_valid_ip_address())
+				return false;
+		};
+
+	} else {
+		Vector<String> ip = split(".");
+		if (ip.size()!=4)
 			return false;
-	}
+		for(int i=0;i<ip.size();i++) {
+
+			String n = ip[i];
+			if (!n.is_valid_integer())
+				return false;
+			int val = n.to_int();
+			if (val<0 || val>255)
+				return false;
+		}
+	};
 
 	return true;
 }
diff --git a/core/ustring.h b/core/ustring.h
index bb57b11d8..452f25285 100644
--- a/core/ustring.h
+++ b/core/ustring.h
@@ -144,7 +144,7 @@ public:
 	bool is_numeric() const;
 	double to_double() const;
 	float to_float() const;
-	int hex_to_int() const;
+	int hex_to_int(bool p_with_prefix = true) const;
 	int to_int() const;
 
 	int64_t to_int64() const;
@@ -218,7 +218,7 @@ public:
 	String c_escape() const;
 	String c_unescape() const;
 	String json_escape() const;
-	String world_wrap(int p_chars_per_line) const;
+	String word_wrap(int p_chars_per_line) const;
 
 	String percent_encode() const;
 	String percent_decode() const;
@@ -226,6 +226,7 @@ public:
 	bool is_valid_identifier() const;
 	bool is_valid_integer() const;
 	bool is_valid_float() const;
+	bool is_valid_hex_number(bool p_with_prefix) const;
 	bool is_valid_html_color() const;
 	bool is_valid_ip_address() const;
 
diff --git a/core/variant.cpp b/core/variant.cpp
index a78c07d81..b2afc9d08 100644
--- a/core/variant.cpp
+++ b/core/variant.cpp
@@ -429,6 +429,7 @@ bool Variant::can_convert(Variant::Type p_type_from,Variant::Type p_type_to) {
 				return true;
 			i++;
 		}
+
 	} else if (invalid_types) {
 
 
@@ -439,6 +440,8 @@ bool Variant::can_convert(Variant::Type p_type_from,Variant::Type p_type_to) {
 				return false;
 			i++;
 		}
+
+		return true;
 	}
 
 	return false;
@@ -457,7 +460,6 @@ bool Variant::can_convert_strict(Variant::Type p_type_from,Variant::Type p_type_
 	};
 
 	const Type *valid_types=NULL;
-	const Type *invalid_types=NULL;
 
 	switch(p_type_to) {
 		case BOOL: {
@@ -679,16 +681,6 @@ bool Variant::can_convert_strict(Variant::Type p_type_from,Variant::Type p_type_
 				return true;
 			i++;
 		}
-	} else if (invalid_types) {
-
-
-		int i=0;
-		while(invalid_types[i]!=NIL) {
-
-			if (p_type_from==invalid_types[i])
-				return false;
-			i++;
-		}
 	}
 
 	return false;
diff --git a/core/variant_call.cpp b/core/variant_call.cpp
index 8473fdcd1..9b6fa27cf 100644
--- a/core/variant_call.cpp
+++ b/core/variant_call.cpp
@@ -346,6 +346,7 @@ static void _call_##m_type##_##m_method(Variant& r_ret,Variant& p_self,const Var
 	VCALL_LOCALMEM0R(Vector2,angle);
 //	VCALL_LOCALMEM1R(Vector2,cross);
 	VCALL_LOCALMEM0R(Vector2,abs);
+	VCALL_LOCALMEM1R(Vector2,clamped);
 
 	VCALL_LOCALMEM0R(Rect2,get_area);
 	VCALL_LOCALMEM1R(Rect2,intersects);
@@ -374,6 +375,7 @@ static void _call_##m_type##_##m_method(Variant& r_ret,Variant& p_self,const Var
 	VCALL_LOCALMEM0R(Vector3, ceil);
 	VCALL_LOCALMEM1R(Vector3, distance_to);
 	VCALL_LOCALMEM1R(Vector3, distance_squared_to);
+	VCALL_LOCALMEM1R(Vector3, angle_to);
 	VCALL_LOCALMEM1R(Vector3, slide);
 	VCALL_LOCALMEM1R(Vector3, reflect);
 
@@ -464,8 +466,8 @@ static void _call_##m_type##_##m_method(Variant& r_ret,Variant& p_self,const Var
 	VCALL_LOCALMEM0R(Array,hash);
 	VCALL_LOCALMEM1(Array,push_back);
 	VCALL_LOCALMEM1(Array,push_front);
-	VCALL_LOCALMEM0(Array,pop_back);
-	VCALL_LOCALMEM0(Array,pop_front);
+	VCALL_LOCALMEM0R(Array,pop_back);
+	VCALL_LOCALMEM0R(Array,pop_front);
 	VCALL_LOCALMEM1(Array,append);
 	VCALL_LOCALMEM1(Array,resize);
 	VCALL_LOCALMEM2(Array,insert);
@@ -1457,6 +1459,7 @@ _VariantCall::addfunc(Variant::m_vtype,Variant::m_ret,_SCS(#m_method),VCALL(m_cl
 	ADDFUNC1(VECTOR2,VECTOR2,Vector2,reflect,VECTOR2,"vec",varray());
 	//ADDFUNC1(VECTOR2,REAL,Vector2,cross,VECTOR2,"with",varray());
 	ADDFUNC0(VECTOR2,VECTOR2,Vector2,abs,varray());
+	ADDFUNC1(VECTOR2,VECTOR2,Vector2,clamped,REAL,"length",varray());
 
 	ADDFUNC0(RECT2,REAL,Rect2,get_area,varray());
 	ADDFUNC1(RECT2,BOOL,Rect2,intersects,RECT2,"b",varray());
@@ -1485,6 +1488,7 @@ _VariantCall::addfunc(Variant::m_vtype,Variant::m_ret,_SCS(#m_method),VCALL(m_cl
 	ADDFUNC0(VECTOR3,VECTOR3,Vector3,ceil,varray());
 	ADDFUNC1(VECTOR3,REAL,Vector3,distance_to,VECTOR3,"b",varray());
 	ADDFUNC1(VECTOR3,REAL,Vector3,distance_squared_to,VECTOR3,"b",varray());
+	ADDFUNC1(VECTOR3,REAL,Vector3,angle_to,VECTOR3,"to",varray());
 	ADDFUNC1(VECTOR3,VECTOR3,Vector3,slide,VECTOR3,"by",varray());
 	ADDFUNC1(VECTOR3,VECTOR3,Vector3,reflect,VECTOR3,"by",varray());
 
@@ -1816,6 +1820,11 @@ _VariantCall::addfunc(Variant::m_vtype,Variant::m_ret,_SCS(#m_method),VCALL(m_cl
 	_VariantCall::add_constant(Variant::IMAGE,"INTERPOLATE_NEAREST",Image::INTERPOLATE_NEAREST);
 	_VariantCall::add_constant(Variant::IMAGE,"INTERPOLATE_BILINEAR",Image::INTERPOLATE_BILINEAR);
 	_VariantCall::add_constant(Variant::IMAGE,"INTERPOLATE_CUBIC",Image::INTERPOLATE_CUBIC);
+
+	_VariantCall::add_constant(Variant::INT, "IP_TYPE_NONE", IP_Address::TYPE_NONE);
+	_VariantCall::add_constant(Variant::INT, "IP_TYPE_IPV4", IP_Address::TYPE_IPV4);
+	_VariantCall::add_constant(Variant::INT, "IP_TYPE_IPV6", IP_Address::TYPE_IPV6);
+	_VariantCall::add_constant(Variant::INT, "IP_TYPE_ANY", IP_Address::TYPE_ANY);
 }
 
 void unregister_variant_methods() {
diff --git a/core/variant_parser.cpp b/core/variant_parser.cpp
index 023605a95..5ed2415e3 100644
--- a/core/variant_parser.cpp
+++ b/core/variant_parser.cpp
@@ -986,7 +986,18 @@ Error VariantParser::parse_value(Token& token,Variant &value,Stream *p_stream,in
 
 			InputEvent ie;
 
-			if (id=="KEY") {
+			if (id=="NONE") {
+
+				ie.type=InputEvent::NONE;
+
+				get_token(p_stream,token,line,r_err_str);
+
+				if (token.type!=TK_PARENTHESIS_CLOSE) {
+					r_err_str="Expected ')'";
+					return ERR_PARSE_ERROR;
+				}
+
+			} else if (id=="KEY") {
 
 				get_token(p_stream,token,line,r_err_str);
 				if (token.type!=TK_COMMA) {
@@ -1166,16 +1177,16 @@ Error VariantParser::parse_value(Token& token,Variant &value,Stream *p_stream,in
 
 		} else if (id=="IntArray") {
 
-			Vector<int32_t> args;
-			Error err = _parse_construct<int32_t>(p_stream,args,line,r_err_str);
+			Vector<int> args;
+			Error err = _parse_construct<int>(p_stream,args,line,r_err_str);
 			if (err)
 				return err;
 
-			DVector<int32_t> arr;
+			DVector<int> arr;
 			{
 				int len=args.size();
 				arr.resize(len);
-				DVector<int32_t>::Write w = arr.write();
+				DVector<int>::Write w = arr.write();
 				for(int i=0;i<len;i++) {
 					w[i]=int(args[i]);
 				}
@@ -2093,6 +2104,9 @@ Error VariantWriter::write(const Variant& p_variant, StoreStringFunc p_store_str
 				case InputEvent::JOYSTICK_MOTION: {
 					str+="JAXIS,"+itos(ev.joy_motion.axis)+","+itos(ev.joy_motion.axis_value);
 				} break;
+				case InputEvent::NONE: {
+					str+="NONE";
+				} break;
 				default: {}
 			}