Updated sf2dlib, added a "thickness" argument to lines (warning: break some old lines), Added WIP render targets, Added arguments (main file and root path)

You'll need to update some of your codes if you used lines with colors, or you'll have some ... Nice line effects.

source/main.c

@@ -1,3 +1,5 @@
+#include <unistd.h>
+
 #include <3ds.h>
 
 #include <lua.h>
@@ -32,7 +34,32 @@ void error(const char *error) {
 }
 
 // Main loop
-int main() {
+int main(int argc, char** argv) {
+	// Default arguments
+	char* mainFile = "main.lua";
+	
+	// Parse arguments
+	for (int i=0;i<argc;i++) {
+		if (argv[i][0] == '-') {
+			switch(argv[i][1]) {
+				case 'm': { // main file replacement
+					mainFile = &argv[i][2];
+					if (argv[i][2] == ' ') mainFile = &argv[i][3];
+					break;
+				}
+				
+				case 'r': { // root directory replacement
+					char* root;
+					root = &argv[i][2];
+					if (argv[i][2] == ' ') root = &argv[i][3];
+					if (chdir(root)) error("No such root path");
+					break;
+				}
+					
+			}
+		}
+	}
+	
 	// Init Lua
 	lua_State *L = luaL_newstate();
 	if (L == NULL) {
@@ -43,15 +70,16 @@ int main() {
 	// Load libs
 	luaL_openlibs(L);
 	load_ctr_lib(L);
+	isGfxInitialized = true;
 
 	// Do the actual thing
-	if (luaL_dofile(L, "main.lua")) error(luaL_checkstring(L, -1));
+	if (luaL_dofile(L, mainFile)) error(luaL_checkstring(L, -1));
 
 	// Unload libs
 	unload_ctr_lib(L);
-
+	
 	// Unload Lua
 	lua_close(L);
-
+	
 	return 0;
 }