sprite.asm contains routines for OAM control.

Note: this library requires video.asm

List of routines:

• obj_init
• obj_blit
• obj_set_tile
• obj_get_tile
• obj_set_flag
• obj_get_flag
• obj_set_position
• obj_get_position

obj_init

• Initializes shadow OAM

Parameters: None

Destroys: All

obj_blit

• Copies sprites from shadow RAM to OAM.
• Call this routine when you want your sprites to appear in OAM.
• preferably during VBlank

Parameters: None

Destroys: AF, B, DE, HL

obj_set_tile

• Sets the tile number for a sprite.

Parameters: A-sprite number (0-39), D-tile number

Destroys: BC, HL

obj_set_tile

• Gets the tile number for a sprite.

Parameters: A - sprite number (0-39)

Outputs: D - tile number

Destroys: BC, HL

obj_set_flag

• Sets the flag byte for a sprite. @todo complete doc

Parameters: A - sprite number, D - flag

Destroys: BC, HL

obj_get_flag

• Gets the flag byte for a sprite.

Parameters: A - sprite number

Outputs: D - flag

Destroys: BC, HL

obj_set_position

• Moves the sprite to (x, y).
• Remember that the top left position of a sprite is at coordinate (8, 16).

Parameters: A - sprite number, H - x, L - y

Destroys: DE, HL

obj_get_position

• Gets the position of a sprite.
• Remember that the top left position of a sprite is at coordinate (8, 16).

Parameters: A - sprite number,

Outputs: H - x, L - y Destroys: DE, HL