Added Delilah + King Animation sprites

replaced Percy penguin with Delilah in  main file.

internal/game/entity/animation/penguin_animations.go

@@ -24,7 +24,7 @@ const (
 )
 
 func DefinePenguinAnimations() {
-	filename := sprite.PERCYWALKING
+	filename := sprite.DELILAHWALKING
 
 	var (
 		dimensions sdl.Point

internal/game/sprite/spritesheet_cache.go

@@ -10,12 +10,16 @@ const (
 	PENGUIN                      = "assets/images/penguin.png"
 	PERCYWALKING                 = "assets/images/percywalking.png"
 	PLATFORMER_FOREST_CHARACTERS = "assets/images/a-platformer-in-the-forest/characters.png"
+	DELILAHWALKING               = "assets/images/Delilah_walking.png"
+	KINGWALKING                  = "assets/images/King_walking.png"
 )
 
 var fileList []string = []string{
 	PENGUIN,
 	PERCYWALKING,
 	PLATFORMER_FOREST_CHARACTERS,
+	DELILAHWALKING,
+	KINGWALKING,
 }
 
 var (