[A83] My Own Lame Sprite Collision Routine.....
[Prev][Next][Index][Thread]
[A83] My Own Lame Sprite Collision Routine.....
I recently wrote my own sprite collision routine, although I know
there are better ones, but I wanted to see if mine worked. Well.... It
doesn't, but it's so simple you would think it would have to work. I hope
someone could please help me with this or tell me what's wrong without giving
me a different sprite collision routine.
When I want to check for collision I call when_sprites_collide.
(Sprite1y and Sprite1x are the coords of the sprite that is stationary, and x
and y are the coords of the sprite that moves and collides with sprite1)
when_sprites_collide:
ld a,(sprite1y)
add a,8
ld (botleft),a
ld a,(sprite1x)
add a,8
ld (topright),a
topleftcheck:
ld a,(sprite1x)
ld l,a
ld a,(x)
cp l
ret nz
ld a,(sprite1y)
ld l,a
ld a,(y)
cp l
ret nz
bcall(_getkey)
ret
toprightcheck:
ld a,(topright)
ld l,a
ld a,(x)
cp l
ret nz
ld a,(sprite1y)
ld l,a
ld a,(y)
cp l
ret nz
bcall(_getkey)
ret
botleftcheck:
ld a,(sprite1x)
ld l,a
ld a,(x)
cp l
ret nz
ld a,(botleft)
ld l,a
ld a,(y)
cp l
ret nz
bcall(_getkey)
ret
botrightcheck:
ld a,(topright)
ld l,a
ld a,(x)
cp l
ret nz
ld a,(botleft)
ld l,a
ld a,(y)
cp l
ret nz
bcall(_getkey)
ret
Thanks,
darkfire139@aol.com