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Use save block (and a for loop) in the flagship demo game source.

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This commit is contained in:
Chris Pressey 2018-05-08 12:39:21 +01:00
parent 8091c45a9a
commit c3a1bdb4cc
1 changed files with 15 additions and 15 deletions
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30
eg/c64/demo-game/demo-game.60p
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@ -406,31 +406,31 @@ define game_state_title_screen game_state_routine
}
define game_state_play game_state_routine
static byte save_x : 0
{
ld x, 0
repeat {
for x up to 15 {
copy actor_pos + x, pos
copy actor_delta + x, delta
st x, save_x
//
// Save our loop counter on the stack temporarily. This means that routines
// like `dispatch_logic` and `clear_screen` are allowed to do whatever they
// want with the `x` register; we will restore it at the end of this block.
//
save x {
copy actor_logic + x, dispatch_logic
call dispatch_logic
copy actor_logic + x, dispatch_logic
call dispatch_logic
if c {
// Player died! Want no dead!
call clear_screen
copy game_state_game_over, dispatch_game_state
if c {
// Player died! Want no dead!
call clear_screen
copy game_state_game_over, dispatch_game_state
}
}
ld x, save_x
copy pos, actor_pos + x
copy delta, actor_delta + x
inc x
cmp x, 16
} until z
}
goto save_cinv
}