Batch of Bugfixes

-=-=-=-=-=-=-=-=-

-Fixed Export UV XForm (should work now). #923
-Fixed enforcement of limits in property editor. #919
-Fixed long-standing bug of export editings in script inheritance. #914, #859, #756
-Fixed horrible error reporting in shader language. #912
-Added kinematic collision with plane (please test well). #911
-Fixed double animation track insert when using 2D rigs. #904
-VKey updates offset parameter in sprite edition. #901
-Do not allow anymore a script to preload itself. (does not fix #899, but narrows it down)
-Avoid connection editor from overriding selected text. #897
-Fixed timer autostart. #876
-Fixed collision layers in 3D physics. #872
-Improved operators in shader #857
-Fixed ambient lighting bug #834
-Avoid editor from processing gamepad input #813
-Added not keyword #752

Please test!

1 files changed, 12 insertions, 4 deletions

diff --git a/modules/gdscript/gd_parser.cpp b/modules/gdscript/gd_parser.cpp
index de2b5219a9..904b6ba52f 100644
--- a/modules/gdscript/gd_parser.cpp
+++ b/modules/gdscript/gd_parser.cpp
@@ -225,7 +225,14 @@ GDParser::Node* GDParser::_parse_expression(Node *p_parent,bool p_static,bool p_
 			String path = tokenizer->get_token_constant();
 			if (!path.is_abs_path() && base_path!="")
 				path=base_path+"/"+path;
-			path = path.replace("///","//");
+			path = path.replace("///","//").simplify_path();
+			if (path==self_path) {
+
+				_set_error("Can't preload itself (use 'get_script()').");
+				return NULL;
+
+			}
+
 
 			Ref<Resource> res;
 			if (!validating) {
@@ -2616,8 +2623,9 @@ Error GDParser::_parse(const String& p_base_path) {
 	return OK;
 }
 
-Error GDParser::parse_bytecode(const Vector<uint8_t> &p_bytecode,const String& p_base_path) {
+Error GDParser::parse_bytecode(const Vector<uint8_t> &p_bytecode,const String& p_base_path, const String &p_self_path) {
 
+	self_path=p_self_path;
 	GDTokenizerBuffer *tb = memnew( GDTokenizerBuffer );
 	tb->set_code_buffer(p_bytecode);
 	tokenizer=tb;
@@ -2628,9 +2636,9 @@ Error GDParser::parse_bytecode(const Vector<uint8_t> &p_bytecode,const String& p
 }
 
 
-Error GDParser::parse(const String& p_code,const String& p_base_path,bool p_just_validate) {
-
+Error GDParser::parse(const String& p_code, const String& p_base_path, bool p_just_validate, const String &p_self_path) {
 
+	self_path=p_self_path;
 	GDTokenizerText *tt = memnew( GDTokenizerText );
 	tt->set_code(p_code);