diff --git a/core/io/marshalls.cpp b/core/io/marshalls.cpp
index b65ca9a696a..0765fc86c78 100644
--- a/core/io/marshalls.cpp
+++ b/core/io/marshalls.cpp
@@ -31,6 +31,10 @@
 #include "os/keyboard.h"
 #include <stdio.h>
 
+
+#define ENCODE_MASK  0xFF
+#define ENCODE_FLAG_64 1<<16
+
 Error decode_variant(Variant& r_variant,const uint8_t *p_buffer, int p_len,int *r_len) {
 
 	const uint8_t * buf=p_buffer;
@@ -44,14 +48,14 @@ Error decode_variant(Variant& r_variant,const uint8_t *p_buffer, int p_len,int *
 
 	uint32_t type=decode_uint32(buf);
 
-	ERR_FAIL_COND_V(type>=Variant::VARIANT_MAX,ERR_INVALID_DATA);
+	ERR_FAIL_COND_V((type&ENCODE_MASK)>=Variant::VARIANT_MAX,ERR_INVALID_DATA);
 
 	buf+=4;
 	len-=4;
 	if (r_len)
 		*r_len=4;
 
-	switch(type) {
+	switch(type&ENCODE_MASK) {
 
 		case Variant::NIL: {
 
@@ -68,19 +72,35 @@ Error decode_variant(Variant& r_variant,const uint8_t *p_buffer, int p_len,int *
 		case Variant::INT: {
 
 			ERR_FAIL_COND_V(len<4,ERR_INVALID_DATA);
-			int val = decode_uint32(buf);
-			r_variant=val;
-			if (r_len)
-				(*r_len)+=4;
+			if (type&ENCODE_FLAG_64) {
+				int64_t val = decode_uint64(buf);
+				r_variant=val;
+				if (r_len)
+					(*r_len)+=8;
+
+			} else {
+				int32_t val = decode_uint32(buf);
+				r_variant=val;
+				if (r_len)
+					(*r_len)+=4;
+			}
 
 		} break;
 		case Variant::REAL: {
 
 			ERR_FAIL_COND_V(len<(int)4,ERR_INVALID_DATA);
-			float val = decode_float(buf);
-			r_variant=val;
-			if (r_len)
-				(*r_len)+=4;
+
+			if (type&ENCODE_FLAG_64) {
+				double val = decode_double(buf);
+				r_variant=val;
+				if (r_len)
+					(*r_len)+=8;
+			} else {
+				float val = decode_float(buf);
+				r_variant=val;
+				if (r_len)
+					(*r_len)+=4;
+			}
 
 		} break;
 		case Variant::STRING: {
@@ -796,8 +816,28 @@ Error encode_variant(const Variant& p_variant, uint8_t *r_buffer, int &r_len) {
 
 	r_len=0;
 
+	uint32_t flags=0;
+
+	switch(p_variant.get_type()) {
+
+		case Variant::INT: {
+			int64_t val = p_variant;
+			if (val>0x7FFFFFFF || val < -0x80000000) {
+				flags|=ENCODE_FLAG_64;
+			}
+		} break;
+		case Variant::REAL: {
+
+			double d = p_variant;
+			float f = d;
+			if (double(f)!=d) {
+				flags|=ENCODE_FLAG_64; //always encode real as double
+			}
+		} break;
+	}
+
 	if (buf) {
-		encode_uint32(p_variant.get_type(),buf);
+		encode_uint32(p_variant.get_type()|flags,buf);
 		buf+=4;
 	}
 	r_len+=4;
@@ -819,20 +859,42 @@ Error encode_variant(const Variant& p_variant, uint8_t *r_buffer, int &r_len) {
 		} break;
 		case Variant::INT: {
 
-			if (buf) {
-				encode_uint32(p_variant.operator int(),buf);
+			int64_t val = p_variant;
+			if (val>0x7FFFFFFF || val < -0x80000000) {
+				//64 bits
+				if (buf) {
+					encode_uint64(val,buf);
+				}
+
+				r_len+=8;
+			} else {
+				if (buf) {
+					encode_uint32(int32_t(val),buf);
+				}
+
+				r_len+=4;
 			}
-
-			r_len+=4;
-
 		} break;
 		case Variant::REAL: {
 
-			if (buf) {
-				encode_float(p_variant.operator float(),buf);
+			double d = p_variant;
+			float f = d;
+			if (double(f)!=d) {
+				if (buf) {
+					encode_double(p_variant.operator double(),buf);
+				}
+
+				r_len+=8;
+
+			} else {
+
+				if (buf) {
+					encode_double(p_variant.operator float(),buf);
+				}
+
+				r_len+=4;
 			}
 
-			r_len+=4;
 
 		} break;
 		case Variant::NODE_PATH: {
diff --git a/core/io/resource_format_binary.cpp b/core/io/resource_format_binary.cpp
index 2a9089e8e89..16da74fdf19 100644
--- a/core/io/resource_format_binary.cpp
+++ b/core/io/resource_format_binary.cpp
@@ -68,6 +68,8 @@ enum {
 	VARIANT_VECTOR3_ARRAY=35,
 	VARIANT_COLOR_ARRAY=36,
 	VARIANT_VECTOR2_ARRAY=37,
+	VARIANT_INT64=40,
+	VARIANT_DOUBLE=41,
 
 	IMAGE_ENCODING_EMPTY=0,
 	IMAGE_ENCODING_RAW=1,
@@ -116,10 +118,18 @@ Error ResourceInteractiveLoaderBinary::parse_variant(Variant& r_v)  {
 
 			r_v=int(f->get_32());
 		} break;
+		case VARIANT_INT64: {
+
+			r_v=int64_t(f->get_64());
+		} break;
 		case VARIANT_REAL: {
 
 			r_v=f->get_real();
 		} break;
+		case VARIANT_DOUBLE: {
+
+			r_v=f->get_double();
+		} break;
 		case VARIANT_STRING: {
 
 			r_v=get_unicode_string();
@@ -1416,15 +1426,33 @@ void ResourceFormatSaverBinaryInstance::write_variant(const Variant& p_property,
 		} break;
 		case Variant::INT: {
 
-			f->store_32(VARIANT_INT);
-			int val=p_property;
-			f->store_32(val);
+			int64_t val = p_property;
+			if (val>0x7FFFFFFF || val < -0x80000000) {
+				f->store_32(VARIANT_INT64);
+				f->store_64(val);
+
+			} else {
+				f->store_32(VARIANT_INT);
+				int val=p_property;
+				f->store_32(int32_t(val));
+
+			}
+
 		} break;
 		case Variant::REAL: {
 
-			f->store_32(VARIANT_REAL);
-			real_t val=p_property;
-			f->store_real(val);
+
+			double d = p_property;
+			float fl = d;
+			if (double(fl)!=d) {
+				f->store_32(VARIANT_DOUBLE);
+				f->store_double(d);
+			} else {
+
+				f->store_32(VARIANT_REAL);
+				f->store_real(fl);
+
+			}
 
 		} break;
 		case Variant::STRING: {
diff --git a/core/ustring.cpp b/core/ustring.cpp
index 0c26fe90c6d..27bb8eac725 100644
--- a/core/ustring.cpp
+++ b/core/ustring.cpp
@@ -1547,20 +1547,20 @@ String::String(const StrRange& p_range) {
 
 int String::hex_to_int(bool p_with_prefix) const {
 
-    int l = length();
+	int l = length();
 	if (p_with_prefix && l<3)
 		return 0;
 
-    const CharType *s=ptr();
+	const CharType *s=ptr();
 
-    int sign = s[0]=='-' ? -1 : 1;
+	int sign = s[0]=='-' ? -1 : 1;
 
-    if (sign<0) {
-        s++;
-        l--;
+	if (sign<0) {
+		s++;
+		l--;
 		if (p_with_prefix && l<2)
-            return 0;
-    }
+			return 0;
+	}
 
 	if (p_with_prefix) {
 		if (s[0]!='0' || s[1]!='x')
@@ -1569,26 +1569,74 @@ int String::hex_to_int(bool p_with_prefix) const {
 		l-=2;
 	};
 
-    int hex=0;
+	int hex=0;
 
-    while(*s) {
+	while(*s) {
 
-        CharType c = LOWERCASE(*s);
-        int n;
-        if (c>='0' && c<='9') {
-            n=c-'0';
-        } else if (c>='a' && c<='f') {
-            n=(c-'a')+10;
-        } else {
-            return 0;
-        }
+		CharType c = LOWERCASE(*s);
+		int n;
+		if (c>='0' && c<='9') {
+			n=c-'0';
+		} else if (c>='a' && c<='f') {
+			n=(c-'a')+10;
+		} else {
+			return 0;
+		}
 
-        hex*=16;
-        hex+=n;
-        s++;
-    }
+		hex*=16;
+		hex+=n;
+		s++;
+	}
 
-    return hex*sign;
+	return hex*sign;
+
+}
+
+
+int64_t String::hex_to_int64(bool p_with_prefix) const {
+
+	int l = length();
+	if (p_with_prefix && l<3)
+		return 0;
+
+	const CharType *s=ptr();
+
+	int64_t sign = s[0]=='-' ? -1 : 1;
+
+	if (sign<0) {
+		s++;
+		l--;
+		if (p_with_prefix && l<2)
+			return 0;
+	}
+
+	if (p_with_prefix) {
+		if (s[0]!='0' || s[1]!='x')
+			return 0;
+		s+=2;
+		l-=2;
+	};
+
+	int64_t hex=0;
+
+	while(*s) {
+
+		CharType c = LOWERCASE(*s);
+		int64_t n;
+		if (c>='0' && c<='9') {
+			n=c-'0';
+		} else if (c>='a' && c<='f') {
+			n=(c-'a')+10;
+		} else {
+			return 0;
+		}
+
+		hex*=16;
+		hex+=n;
+		s++;
+	}
+
+	return hex*sign;
 
 }
 
diff --git a/core/ustring.h b/core/ustring.h
index 8b008c2ba4c..9a145143d08 100644
--- a/core/ustring.h
+++ b/core/ustring.h
@@ -147,6 +147,7 @@ public:
 	int hex_to_int(bool p_with_prefix = true) const;
 	int to_int() const;
 
+	int64_t hex_to_int64(bool p_with_prefix = true) const;
 	int64_t to_int64() const;
 	static int to_int(const char* p_str, int p_len=-1);
 	static double to_double(const char* p_str);
diff --git a/core/variant.cpp b/core/variant.cpp
index 6b504438542..69160fffa7f 100644
--- a/core/variant.cpp
+++ b/core/variant.cpp
@@ -1467,7 +1467,7 @@ Variant::operator double() const {
 
 		case NIL: return 0;
 		case BOOL: return _data._bool ? 1.0 : 0.0;
-		case INT: return (float)_data._int;
+		case INT: return (double)_data._int;
 		case REAL: return _data._real;
 		case STRING: return operator String().to_double();
 		default: {
@@ -1504,8 +1504,8 @@ Variant::operator String() const {
 
 		case NIL: return "Null";
 		case BOOL: return _data._bool ? "True" : "False";
-		case INT: return String::num(_data._int);
-		case REAL: return String::num(_data._real);
+		case INT: return itos(_data._int);
+		case REAL: return rtos(_data._real);
 		case STRING: return *reinterpret_cast<const String*>(_data._mem);
 		case VECTOR2: return "("+operator Vector2()+")";
 		case RECT2: return "("+operator Rect2()+")";
diff --git a/core/variant.h b/core/variant.h
index a2b9a88b3e6..764ba9ae60a 100644
--- a/core/variant.h
+++ b/core/variant.h
@@ -141,7 +141,7 @@ private:
 	union {
 
 		bool _bool;
-		int _int;
+		int64_t _int;
 		double _real;
 		Matrix32 *_matrix32;
 		AABB* _aabb;
diff --git a/core/variant_op.cpp b/core/variant_op.cpp
index 84edb51c73b..00baffdd3bb 100644
--- a/core/variant_op.cpp
+++ b/core/variant_op.cpp
@@ -683,7 +683,7 @@ void Variant::evaluate(const Operator& p_op, const Variant& p_a, const Variant&
 				case INT: {
 					switch(p_b.type) {
 						case BOOL: {
-							int b = p_b._data._bool;
+							int64_t b = p_b._data._bool;
 							if (b==0) {
 
 								r_valid=false;
@@ -693,7 +693,7 @@ void Variant::evaluate(const Operator& p_op, const Variant& p_a, const Variant&
 
 						} break;
 						case INT: {
-							int b = p_b._data._int;
+							int64_t b = p_b._data._int;
 							if (b==0) {
 
 								r_valid=false;
@@ -3358,8 +3358,8 @@ void Variant::blend(const Variant& a, const Variant& b, float c, Variant &r_dst)
 	switch(a.type) {
 		case NIL: { r_dst=Variant(); } return;
 		case INT:{
-			int va=a._data._int;
-			int vb=b._data._int;
+			int64_t va=a._data._int;
+			int64_t vb=b._data._int;
 			r_dst=int(va + vb * c + 0.5);
 		} return;
 		case REAL:{
@@ -3423,8 +3423,8 @@ void Variant::interpolate(const Variant& a, const Variant& b, float c,Variant &r
 		case NIL:{   r_dst=Variant();    } return;
 		case BOOL:{  r_dst=a;     } return;
 		case INT:{
-			int va=a._data._int;
-			int vb=b._data._int;
+			int64_t va=a._data._int;
+			int64_t vb=b._data._int;
 			r_dst=int((1.0-c) * va + vb * c);
 		} return;
 		case REAL:{
diff --git a/modules/gdscript/gd_tokenizer.cpp b/modules/gdscript/gd_tokenizer.cpp
index 865c07f3b2f..fcf2d258065 100644
--- a/modules/gdscript/gd_tokenizer.cpp
+++ b/modules/gdscript/gd_tokenizer.cpp
@@ -731,14 +731,14 @@ void GDTokenizerText::_advance() {
 
 					INCPOS(str.length());
 					if (hexa_found) {
-						int val = str.hex_to_int();
+						int64_t val = str.hex_to_int64();
 						_make_constant(val);
 					} else if (period_found || exponent_found) {
-						real_t val = str.to_double();
+						double val = str.to_double();
 						//print_line("*%*%*%*% to convert: "+str+" result: "+rtos(val));
 						_make_constant(val);
 					} else {
-						int val = str.to_int();
+						int64_t val = str.to_int64();
 						_make_constant(val);
 
 					}
diff --git a/scene/gui/box_container.cpp b/scene/gui/box_container.cpp
index 95e796ab56d..f31f51a5cd6 100644
--- a/scene/gui/box_container.cpp
+++ b/scene/gui/box_container.cpp
@@ -280,7 +280,7 @@ BoxContainer::AlignMode BoxContainer::get_alignment() const {
 void BoxContainer::add_spacer(bool p_begin) {
 
 	Control *c = memnew( Control );
-	c->set_mouse_filter(MOUSE_FILTER_PASS);
+	c->set_mouse_filter(MOUSE_FILTER_PASS); //allow spacer to pass mouse events
 
 	if (vertical)
 		c->set_v_size_flags(SIZE_EXPAND_FILL);