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| author | Miquel Sabaté Solà <mssola@mssola.com> | 2026-03-11 23:44:13 +0100 |
|---|---|---|
| committer | Miquel Sabaté Solà <mssola@mssola.com> | 2026-03-11 23:44:13 +0100 |
| commit | 9ae51a4c210b8f01718e21eda592c498715a642b (patch) | |
| tree | 90867f95c133b8c4383a9559075b73b77b92c98b /src/interrupts.s | |
| parent | a0ef7b9c4d341de3f3f518626c40576e45cbf244 (diff) | |
| download | jetpac.nes-9ae51a4c210b8f01718e21eda592c498715a642b.tar.gz jetpac.nes-9ae51a4c210b8f01718e21eda592c498715a642b.zip | |
Initial implementation for items
This now only supports the appearance of shuttle parts and the fact that
the player can collect them at a very specific order and drop them so to
stack up the final shuttle.
This is of course just the skeleton and there's a bunch of TODO's left.
Signed-off-by: Miquel Sabaté Solà <mssola@mssola.com>
Diffstat (limited to 'src/interrupts.s')
| -rw-r--r-- | src/interrupts.s | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/src/interrupts.s b/src/interrupts.s index c5eb306..81709ed 100644 --- a/src/interrupts.s +++ b/src/interrupts.s @@ -62,7 +62,7 @@ ;; Do we need to update the lifes from players on the HUD? lda Player::zp_state and #%00001000 - beq @global_flags + beq @shuttle_update ;; Yeah! @@ -97,9 +97,21 @@ and #%11110111 sta Player::zp_state -@global_flags: - ;; TODO: some actions here will depend on the status of the game... +@shuttle_update: + ;; Should the shuttle be updated? lda Globals::zp_flags + tax + and #%00100000 + beq @game_status + jsr Items::update_shuttle + + ;; And unset the flag. + lda Globals::zp_flags + and #%11011111 + sta Globals::zp_flags + +@game_status: + txa and #%00000001 bne @ppu_registers |