Fetch/store variables for on screen sprites

[Kitsune Mifune]

I'm wondering what is the most efficient way to store and fetch values for multiple on screen enemy (and player) variables?

I'm using one draw routine for everything (player, enemies) and currently I have custom variables for all of them which get converted to a general variable before they hit the draw routine like this:

Code Select Expand



ld a,(PLAYER_XY)
ld (SPRITE_XY),a
call DRAW



ld a,(ENEMY1_XY)
ld (SPRITE_XY),a
call DRAW



ld a,(ENEMY2_XY)
ld (SPRITE_XY),a
call DRAW


[\code]

It works, but there are a lot of variables to convert so it feels very bloated, and I'm sure there's an easier way to do it by using an array or something and some single variable which denotes what type of sprite is being drawn (0 = draw nothing, 1 = player, 2 = enemy1, 3 = enemy2 etc).

My brain is a little fried at the moment, so if someone can nudge me in the right direction that would be great! Thanks.

[roudoudou]

Use a sprite structure and build an array
Then you make a loop of all elements
pseudo code will be like

Code Select Expand

displaysprites
ld a,(hl) : or a : ret z : inc hl : push hl
DRAW ; not a CALL if you use DRAW only for sprites, you save CALL+RET
pop hl
jr displaysprites

[Kitsune Mifune]

Just what I was after.Thank you!

That'll save me going down dead ends.