6502/SixtyPical
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Spiff up the demo game source a little bit.

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This commit is contained in:
Chris Pressey 2017-12-11 14:01:57 +00:00
parent b4709268bc
commit b395dbcfda
1 changed files with 41 additions and 2 deletions
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43
eg/proto-game.60p
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@ -1,3 +1,11 @@
// ****************************
// * Demo Game for SixtyPical *
// ****************************
// ----------------------------------------------------------------
// Variables
// ----------------------------------------------------------------
buffer[2048] screen @ 1024
byte joy2 @ $dc00
@ -28,6 +36,17 @@ vector save_cinv
outputs delta, pos, screen
trashes a, x, y, c, z, n, v, ptr
// (This one is less fibby.)
vector dispatch_game_state
inputs joy2, pos
outputs delta, pos, screen
trashes a, x, y, c, z, n, v, ptr
// ----------------------------------------------------------------
// Routines
// ----------------------------------------------------------------
routine read_stick
inputs joy2
outputs delta
@ -61,7 +80,11 @@ routine read_stick
}
}
routine our_cinv
// ----------------------------------------------------------------
// Game States
// ----------------------------------------------------------------
routine game_state_play
inputs joy2, pos
outputs delta, pos, screen
trashes a, x, y, c, z, n, v, ptr
@ -81,14 +104,30 @@ routine our_cinv
goto save_cinv
}
// *************************
// * Main Game Loop Driver *
// *************************
routine our_cinv
inputs joy2, pos
outputs delta, pos, screen
trashes a, x, y, c, z, n, v, ptr
{
goto dispatch_game_state
}
routine main
inputs cinv
outputs cinv, save_cinv, pos
outputs cinv, save_cinv, pos, dispatch_game_state
trashes a, n, z
{
// jsr clear_screen
copy game_state_play, dispatch_game_state
copy word 0, pos
with interrupts off {
copy cinv, save_cinv
copy our_cinv, cinv
}
// repeat forever {}
}