Simple quick way to do different attacks that play different shaders.

tools/fragviewer.cpp

@@ -41,7 +41,7 @@ int main(int argc, char *argv[]) {
 
   dbc::check(sf::Shader::isAvailable(), "You apparently are a time traveler from the 80s who doesn't have shaders.");
 
-  while((opt = getopt(argc, argv, "-hs:f:-x:-y:")) != -1) {
+  while((opt = getopt(argc, argv, "hs:f:x:y:")) != -1) {
     switch(opt) {
       case 's':
         sprite_name = optarg;