Try to fix cmake build

CMakeLists.txt

@@ -73,6 +73,8 @@ add_executable(nothing
   src/game/level/lava/wavy_rect.c
   src/game/level/platforms.h
   src/game/level/platforms.c
+  src/game/level/phantom_platforms.h
+  src/game/level/phantom_platforms.c
   src/game/level/player.h
   src/game/level/player.c
   src/game/level/explosion.h

src/game/level/phantom_platforms.h

@@ -1,6 +1,11 @@
 #ifndef PHANTOM_PLATFORMS_H_
 #define PHANTOM_PLATFORMS_H_
 
+#include <stdlib.h>
+#include "math/rect.h"
+#include "color.h"
+#include "game/level/level_editor/rect_layer.h"
+
 typedef struct {
     size_t size;
     Rect *rects;