Vector2LineAngle and more Color functions.

src/lua_core.c

@@ -914,6 +914,7 @@ void luaRegister() {
 	assingGlobalFunction( "CheckCollisionPointRec", lshapesCheckCollisionPointRec );
 	assingGlobalFunction( "CheckCollisionPointCircle", lshapesCheckCollisionPointCircle );
 	assingGlobalFunction( "CheckCollisionPointTriangle", lshapesCheckCollisionPointTriangle );
+	assingGlobalFunction( "CheckCollisionPointPoly", lshapesCheckCollisionPointPoly );
 	assingGlobalFunction( "CheckCollisionLines", lshapesCheckCollisionLines );
 	assingGlobalFunction( "CheckCollisionPointLine", lshapesCheckCollisionPointLine );
 	assingGlobalFunction( "GetCollisionRec", lshapesGetCollisionRec );
@@ -1011,6 +1012,9 @@ void luaRegister() {
 	assingGlobalFunction( "ColorFromNormalized", ltexturesColorFromNormalized );
 	assingGlobalFunction( "ColorToHSV", ltexturesColorToHSV );
 	assingGlobalFunction( "ColorFromHSV", ltexturesColorFromHSV );
+	assingGlobalFunction( "ColorTint", ltexturesColorTint );
+	assingGlobalFunction( "ColorBrightness", ltexturesColorBrightness );
+	assingGlobalFunction( "ColorContrast", ltexturesColorContrast );
 	assingGlobalFunction( "ColorAlpha", ltexturesColorAlpha );
 	assingGlobalFunction( "ColorAlphaBlend", ltexturesColorAlphaBlend );
 	assingGlobalFunction( "GetColor", ltexturesGetColor );

src/shapes.c

@@ -1105,6 +1105,41 @@ int lshapesCheckCollisionPointTriangle( lua_State *L ) {
 	return 1;
 }
 
+/*
+> collision = RL.CheckCollisionPointPoly( Vector2 point, Vector2{} points )
+
+Check if point is within a polygon described by array of vertices
+
+- Failure return nil
+- Success return bool
+*/
+int lshapesCheckCollisionPointPoly( lua_State *L ) {
+	if ( !lua_istable( L, -2 ) || !lua_istable( L, -1 ) ) {
+		TraceLog( LOG_WARNING, "%s", "Bad call of function. RL.CheckCollisionPointPoly( Vector2 point, Vector2{} points )" );
+		lua_pushnil( L );
+		return 1;
+	}
+	int pointCount = uluaGetTableLen( L );
+	Vector2 points[ pointCount ];
+
+	int t = lua_gettop( L );
+	int i = 0;
+	lua_pushnil( L );
+
+	while ( lua_next( L, t ) != 0 ) {
+		points[i] = uluaGetVector2( L );
+		i++;
+		lua_pop( L, 1 );
+	}
+	lua_pop( L, 1 );
+
+	Vector2 point = uluaGetVector2( L );
+	
+	lua_pushboolean( L, CheckCollisionPointPoly( point, points, pointCount ) );
+
+	return 1;
+}
+
 /*
 > collision, position = RL.CheckCollisionLines( Vector2 startPos1, Vector2 endPos1, Vector2 startPos2, Vector2 endPos2 )
 

src/textures.c

@@ -2448,6 +2448,75 @@ int ltexturesColorFromHSV( lua_State *L ) {
 	return 1;
 }
 
+/*
+> color = RL.ColorTint( Color color, Color tint )
+
+Get color multiplied with another color
+
+- Failure return false
+- Success return Color
+*/
+int ltexturesColorTint( lua_State *L ) {
+	if ( !lua_istable( L, -2 ) || !lua_istable( L, -1 ) ) {
+		TraceLog( LOG_WARNING, "%s", "Bad call of function. RL.ColorTint( Color color, Color tint )" );
+		lua_pushboolean( L, false );
+		return 1;
+	}
+	Color tint = uluaGetColor( L );
+	lua_pop( L, 1 );
+	Color color = uluaGetColor( L );
+
+	uluaPushColor( L, ColorTint( color, tint ) );
+
+	return 1;
+}
+
+/*
+> color = RL.ColorBrightness( Color color, float factor )
+
+Get color with brightness correction, brightness factor goes from -1.0f to 1.0f
+
+- Failure return false
+- Success return Color
+*/
+int ltexturesColorBrightness( lua_State *L ) {
+	if ( !lua_istable( L, -2 ) || !lua_isnumber( L, -1 ) ) {
+		TraceLog( LOG_WARNING, "%s", "Bad call of function. RL.ColorBrightness( Color color, float factor )" );
+		lua_pushboolean( L, false );
+		return 1;
+	}
+	float factor = lua_tonumber( L, -1 );
+	lua_pop( L, 1 );
+	Color color = uluaGetColor( L );
+
+	uluaPushColor( L, ColorBrightness( color, factor ) );
+
+	return 1;
+}
+
+/*
+> color = RL.ColorContrast( Color color, float contrast )
+
+Get color with contrast correction, contrast values between -1.0f and 1.0f
+
+- Failure return false
+- Success return Color
+*/
+int ltexturesColorContrast( lua_State *L ) {
+	if ( !lua_istable( L, -2 ) || !lua_isnumber( L, -1 ) ) {
+		TraceLog( LOG_WARNING, "%s", "Bad call of function. RL.ColorContrast( Color color, float contrast )" );
+		lua_pushboolean( L, false );
+		return 1;
+	}
+	float contrast = lua_tonumber( L, -1 );
+	lua_pop( L, 1 );
+	Color color = uluaGetColor( L );
+
+	uluaPushColor( L, ColorContrast( color, contrast ) );
+
+	return 1;
+}
+
 /*
 > color = RL.ColorAlpha( Color color, float alpha )