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| author | Juan J. Martinez <jjm@usebox.net> | 2023-05-20 10:21:57 +0100 |
|---|---|---|
| committer | Juan J. Martinez <jjm@usebox.net> | 2023-05-20 10:21:57 +0100 |
| commit | 85d5a45f08dd47e76f733fd027bb3df3d7b1948a (patch) | |
| tree | 6b1877181df24241055239e3be7131c44c05b9ff | |
| parent | ccf1ea4a34a789da326a321589c2757e5b1d749c (diff) | |
| download | tr8vm-85d5a45f08dd47e76f733fd027bb3df3d7b1948a.tar.gz tr8vm-85d5a45f08dd47e76f733fd027bb3df3d7b1948a.zip | |
Enforce game playe area limits
| -rw-r--r-- | game/player.asm | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/game/player.asm b/game/player.asm index ef63839..9683905 100644 --- a/game/player.asm +++ b/game/player.asm @@ -21,12 +21,21 @@ player_update: ; left bit b, 4 - bz + bnz + jmp player_not_left dec y + bo + ld y, 0 +player_not_left: ; right bit b, 5 + bnz + jmp player_not_right + cmp y, 112 bz + jmp player_not_right inc y +player_not_right: ld [a : x], y @@ -38,12 +47,22 @@ player_update: ; up bit b, 2 + bnz + jmp player_not_up + cmp y, 16 bz + jmp player_not_up dec y +player_not_up: ; down bit b, 3 + bnz + jmp player_not_down + cmp y, 112 bz + jmp player_not_down inc y +player_not_down: ld [a : x], y |