New graphics api function: getColors, returns r, b, g, and a from a hex color

Also, remove generated/ and build/generated when using scons -c

SConscript

@@ -337,6 +337,12 @@ if not GetOption('clean'):
 		conf.CheckBit()
 	findLibs(env, conf)
 	env = conf.Finish()
+else:
+	import os, shutil
+	try:
+		shutil.rmtree("generated/")
+	except:
+		print "couldn't remove build/generated/"
 
 if not msvc:
 	if platform == "Windows":

SConstruct

@@ -9,7 +9,13 @@ if GetOption('clean'):
 	try:
 		shutil.rmtree(".sconf_temp/")
 	except:
-		print "couldn't remove .sconf_temp"
+		print "couldn't remove .sconf_temp/"
+
+	try:
+		shutil.rmtree("generated/")
+	except:
+		print "couldn't remove generated/"
+
 	try:
 		os.remove(".sconsign.dblite")
 	except:

src/lua/LuaScriptInterface.cpp

@@ -2394,6 +2394,7 @@ void LuaScriptInterface::initGraphicsAPI()
 		{"fillRect", graphics_fillRect},
 		{"drawCircle", graphics_drawCircle},
 		{"fillCircle", graphics_fillCircle},
+		{"getColors", graphics_getColors},
 		{NULL, NULL}
 	};
 	luaL_register(l, "graphics", graphicsAPIMethods);
@@ -2560,6 +2561,22 @@ int LuaScriptInterface::graphics_fillCircle(lua_State * l)
 	return 0;
 }
 
+int LuaScriptInterface::graphics_getColors(lua_State * l)
+{
+	int color = lua_tointeger(l, 1);
+
+	int a = color >> 24;
+	int r = (color >> 16)&0xFF;
+	int g = (color >> 8)&0xFF;
+	int b = color&0xFF;
+
+	lua_pushinteger(l, r);
+	lua_pushinteger(l, g);
+	lua_pushinteger(l, b);
+	lua_pushinteger(l, a);
+	return 4;
+}
+
 void LuaScriptInterface::initFileSystemAPI()
 {
 	//Methods

src/lua/LuaScriptInterface.h

@@ -131,6 +131,7 @@ class LuaScriptInterface: public CommandInterface
 	static int graphics_fillRect(lua_State * l);
 	static int graphics_drawCircle(lua_State * l);
 	static int graphics_fillCircle(lua_State * l);
+	static int graphics_getColors(lua_State * l);
 
 	void initFileSystemAPI();
 	static int fileSystem_list(lua_State * l);