diff options
Diffstat (limited to 'src/bullets.s')
| -rw-r--r-- | src/bullets.s | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/src/bullets.s b/src/bullets.s index 736a226..db8bfd7 100644 --- a/src/bullets.s +++ b/src/bullets.s @@ -6,6 +6,9 @@ ;; Maximum amount of bullets allowed on screen at the same time. BULLETS_POOL_CAPACITY = 10 + ;; The capacity of the bullets pool in bytes. + BULLETS_POOL_CAPACITY_BYTES = BULLETS_POOL_CAPACITY * 3 + ;; Base address for the pool of bullets used on this game. The pool has ;; #BULLETS_POOL_CAPACITY bullet objects where each one is 3 bytes long: ;; 1. State: which can have two formats: @@ -17,15 +20,6 @@ ;; 3. X coordinate. zp_bullets_pool_base = $A0 - ;; The screen coordinates of the bullet being inspected right now. Used when - ;; computing the move of bullets and checking possible collisions with - ;; background/enemies. - zp_current_bullet_y = $A1 - zp_current_bullet_x = $A2 - - ;; The capacity of the bullets pool in bytes. - BULLETS_POOL_CAPACITY_BYTES = BULLETS_POOL_CAPACITY * 3 - ;; The current amount of bullets on screen. zp_bullets_pool_size = $E0 @@ -34,6 +28,12 @@ ;; time, as consecutive allocation is a very common case. zp_last_allocated_index = $E1 + ;; The screen coordinates of the bullet being inspected right now. Used when + ;; computing the move of bullets and checking possible collisions with + ;; background/enemies. + zp_current_bullet_y = $E2 + zp_current_bullet_x = $E3 + ;; The amount of time we are not allowing B presses. This is a rather low ;; value so you can have quite some presses per frame. zp_bullet_timer = $35 |