fix main shader & lua parser

res/shaders/main.glslf

@@ -20,6 +20,9 @@ void main() {
         if (alpha < 0.2f)
             discard;
         alpha = 1.0;
+    } else {
+        if (alpha < 0.002f)
+            discard;
     }
     f_color = mix(a_color * tex_color, vec4(fogColor,1.0), 
               min(1.0, pow(depth*u_fogFactor, u_fogCurve)));

src/coders/lua_parsing.cpp

@@ -113,8 +113,9 @@ public:
             auto start = currentLocation();
             if (is_lua_identifier_start(c)) {
                 auto name = parseLuaName();
+                TokenTag tag = (is_lua_keyword(name) ? TokenTag::KEYWORD : TokenTag::NAME);
                 emitToken(
-                    is_lua_keyword(name) ? TokenTag::KEYWORD : TokenTag::NAME,
+                    tag,
                     std::move(name),
                     start
                 );