diff --git a/bindings/sdl/libsdl/src/main/kotlin/libsdl/Constants.kt b/bindings/sdl/libsdl/src/main/kotlin/libsdl/Constants.kt
deleted file mode 100644
index 89f05881..00000000
--- a/bindings/sdl/libsdl/src/main/kotlin/libsdl/Constants.kt
+++ /dev/null
@@ -1,16 +0,0 @@
-package libsdl
-
-const val SDL_INIT_TIMER: Int = 0x00000001
-const val SDL_INIT_AUDIO: Int = 0x00000010
-const val SDL_INIT_VIDEO: Int = 0x00000020  // SDL_INIT_VIDEO implies SDL_INIT_EVENTS
-const val SDL_INIT_JOYSTICK: Int = 0x00000200  // SDL_INIT_JOYSTICK implies SDL_INIT_EVENTS
-const val SDL_INIT_HAPTIC: Int = 0x00001000
-const val SDL_INIT_GAMECONTROLLER: Int = 0x00002000  // SDL_INIT_GAMECONTROLLER implies SDL_INIT_JOYSTICK
-const val SDL_INIT_EVENTS: Int = 0x00004000
-const val SDL_INIT_SENSOR: Int = 0x00008000
-const val SDL_INIT_NOPARACHUTE: Int = 0x00100000  // compatibility; this flag is ignored.
-
-val SDL_INIT_EVERYTHING: Int = SDL_INIT_TIMER or SDL_INIT_AUDIO or SDL_INIT_VIDEO or SDL_INIT_EVENTS or SDL_INIT_JOYSTICK or SDL_INIT_HAPTIC or SDL_INIT_GAMECONTROLLER or SDL_INIT_SENSOR
-
-
-const val SDL_ALPHA_OPAQUE: Byte = 255.toByte()
\ No newline at end of file
diff --git a/bindings/sdl/libsdl/src/main/kotlin/snake/main.kt b/bindings/sdl/libsdl/src/main/kotlin/snake/main.kt
index aa26f7a8..ac418f96 100644
--- a/bindings/sdl/libsdl/src/main/kotlin/snake/main.kt
+++ b/bindings/sdl/libsdl/src/main/kotlin/snake/main.kt
@@ -67,7 +67,7 @@ class SdlUI(width: Int, height: Int): AutoCloseable {
 	private val pixelHeight = height * Sprites.h
 
 	init {
-		if (libSDL2Library.SDL_Init(SDL_INIT_EVERYTHING) != 0) {
+		if (libSDL2Library.SDL_Init(SDL_INIT_EVERYTHING.toInt()) != 0) {
 			println("SDL_Init Error: ${libSDL2Library.SDL_GetError()}")
 			throw Error()
 		}
@@ -94,7 +94,7 @@ class SdlUI(width: Int, height: Int): AutoCloseable {
 
 	fun draw(game: Game) {
 		libSDL2Library.SDL_RenderClear(renderer)
-		libSDL2Library.SDL_SetRenderDrawColor(renderer, (200 / 2).toByte(), (230 / 2).toByte(), (151 / 2).toByte(), SDL_ALPHA_OPAQUE)
+		libSDL2Library.SDL_SetRenderDrawColor(renderer, (200 / 2).toByte(), (230 / 2).toByte(), (151 / 2).toByte(), SDL_ALPHA_OPAQUE.toByte())
 
 		val grassW = 256
 		val grassScaledW = 400 // scale grass up to reduce its resolution so that it's similar to snake sprites