Simplify player initialization

src/player.s

@@ -31,7 +31,7 @@ DEF GRAVITY EQU (0 << 8) | 8
 DEF INIT_VY EQU (2 << 8) | 40
 
 Player_Init::
-    ; clear player data
+    ; Clear player data
     ld hl, PLAYER_X
     ld [hl], 0
     inc hl
@@ -45,24 +45,14 @@ Player_Init::
     inc hl
     ld [hl], 0
 
-    ld a, 8
-    ld hl, _OAM + 1
-    ld [hl], a
-
+    ; Copy sprite to VRAM
     ld bc, _VRAM8000 + SPRITE_IDX * 16
     ld hl, spriteData
     ld d, 16 * (SPRITE_WIDTH * SPRITE_HEIGHT)
     call memcpy
 
-    OAM_set SPRITE_OAM_IDX + 0, 8, 144-8-8, SPRITE_IDX, 0
-    OAM_set SPRITE_OAM_IDX + 1, 16, 144-8-8, SPRITE_IDX + 1, 0
-    OAM_set SPRITE_OAM_IDX + 2, 8, 144-8, SPRITE_IDX + 2, 0
-    OAM_set SPRITE_OAM_IDX + 3, 16, 144-8, SPRITE_IDX + 3, 0
-
-    ld bc, _OAMRAM
-    ld hl, _OAM
-    ld d, 4 * (SPRITE_WIDTH * SPRITE_HEIGHT)
-    call memcpy
+    ; Initialize OAM entries with player state
+    call update_oam
 
     ret