Inf and NaN support added to GDScript.

5 files changed, 36 insertions, 0 deletions

diff --git a/modules/gdscript/gd_editor.cpp b/modules/gdscript/gd_editor.cpp
index 352016b2d2..9dd41847d7 100644
--- a/modules/gdscript/gd_editor.cpp
+++ b/modules/gdscript/gd_editor.cpp
@@ -323,6 +323,16 @@ void GDScriptLanguage::get_public_constants(List<Pair<String,Variant> > *p_const
 	pi.first="PI";
 	pi.second=Math_PI;
 	p_constants->push_back(pi);
+
+	Pair<String, Variant> infinity;
+	infinity.first = "INF";
+	infinity.second = Math_INF;
+	p_constants->push_back(infinity);
+
+	Pair<String, Variant> nan;
+	nan.first = "NAN";
+	nan.second = Math_NAN;
+	p_constants->push_back(nan);
 }
 
 String GDScriptLanguage::make_function(const String& p_class,const String& p_name,const PoolStringArray& p_args) const {
diff --git a/modules/gdscript/gd_parser.cpp b/modules/gdscript/gd_parser.cpp
index 350f596f71..5147ccd63f 100644
--- a/modules/gdscript/gd_parser.cpp
+++ b/modules/gdscript/gd_parser.cpp
@@ -375,6 +375,22 @@ GDParser::Node* GDParser::_parse_expression(Node *p_parent,bool p_static,bool p_
 			constant->value=Math_PI;
 			tokenizer->advance();
 			expr=constant;
+		}
+		else if (tokenizer->get_token() == GDTokenizer::TK_CONST_INF) {
+
+			//constant defined by tokenizer
+			ConstantNode *constant = alloc_node<ConstantNode>();
+			constant->value = Math_INF;
+			tokenizer->advance();
+			expr = constant;
+		}
+		else if (tokenizer->get_token() == GDTokenizer::TK_CONST_NAN) {
+
+			//constant defined by tokenizer
+			ConstantNode *constant = alloc_node<ConstantNode>();
+			constant->value = Math_NAN;
+			tokenizer->advance();
+			expr = constant;
 		} else if (tokenizer->get_token()==GDTokenizer::TK_PR_PRELOAD) {
 
 			//constant defined by tokenizer
diff --git a/modules/gdscript/gd_script.cpp b/modules/gdscript/gd_script.cpp
index d4646aa36d..4e72bc39a4 100644
--- a/modules/gdscript/gd_script.cpp
+++ b/modules/gdscript/gd_script.cpp
@@ -1517,6 +1517,8 @@ void GDScriptLanguage::init() {
 	}
 
 	_add_global(StaticCString::create("PI"),Math_PI);
+	_add_global(StaticCString::create("INF"),Math_INF);
+	_add_global(StaticCString::create("NAN"),Math_NAN);
 
 	//populate native classes
 
@@ -1909,6 +1911,8 @@ void GDScriptLanguage::get_reserved_words(List<String> *p_words) const  {
 		"bool",
 		"null",
 		"PI",
+		"INF",
+		"NAN",
 		"self",
 		"true",
 		// functions
diff --git a/modules/gdscript/gd_tokenizer.cpp b/modules/gdscript/gd_tokenizer.cpp
index 477a1f1ac8..54b9624e8e 100644
--- a/modules/gdscript/gd_tokenizer.cpp
+++ b/modules/gdscript/gd_tokenizer.cpp
@@ -120,6 +120,8 @@ const char* GDTokenizer::token_names[TK_MAX]={
 "'\\n'",
 "PI",
 "_",
+"INF",
+"NAN",
 "Error",
 "EOF",
 "Cursor"};
@@ -901,6 +903,8 @@ void GDTokenizerText::_advance() {
 								{TK_SELF,"self"},
 								{TK_CONST_PI,"PI"},
 								{TK_WILDCARD,"_"},
+								{TK_CONST_INF,"INF"},
+								{TK_CONST_NAN,"NAN"},
 								{TK_ERROR,NULL}
 							};
 
diff --git a/modules/gdscript/gd_tokenizer.h b/modules/gdscript/gd_tokenizer.h
index 5d955ff1ae..1e9eda7947 100644
--- a/modules/gdscript/gd_tokenizer.h
+++ b/modules/gdscript/gd_tokenizer.h
@@ -128,6 +128,8 @@ public:
 		TK_NEWLINE,
 		TK_CONST_PI,
 		TK_WILDCARD,
+		TK_CONST_INF,
+		TK_CONST_NAN,
 		TK_ERROR,
 		TK_EOF,
 		TK_CURSOR, //used for code completion