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ootw: intro: allow continuing to game
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Vince Weaver
parent
5791937a4e
commit
484579c400
70
ootw/README
70
ootw/README
@ -1,35 +1,52 @@
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Another / Out-of-This World Demake for Apple II+
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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by Vince "Deater" Weaver (vince@deater.net)
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http://www.deater.net/weave/vmwprod/ootw/
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Disk and LZ4 routines by qkumba
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Saw the amazing PICO-8 version of this:
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+ The game "Another World" was released in 1991.
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Written by Eric Chahi.
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It was eventually ported to many systems (I played it on IBM PC).
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It even got an Apple IIgs port (the IIgs is 16-bit with fancy
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graphics and sound). However you couldn't play it on
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earlier Apple II systems... until now.
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+ I was inspired to do this by this amazing PICO-8 version of:
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https://liquidream.itch.io/another-world-survival
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and thought the lo-res pallette might be just barely enough to do
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it justice.
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Of course you could just play on your IIgs, but what's the fun in that.
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Up to tunnel1, using RLE:
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35875 INTRO
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using LZ4:
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and thought the Apple II lo-res palette (15 colors, 40x48 graphics)
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might be just barely enough to do it justice.
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==================
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Game controls:
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==================
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Use WASD keys to move, also arrow keys where available.
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This is tricky as the original Apple II keyboard is very
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simplistic so it's hard to get auto-repeat or multi keypress.
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Spacebar is action.
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During the intro, you can press R to make it repeat forever.
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Joystick support: none yet?
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==================
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Development notes:
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==================
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Memory map:
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00 zero page
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01 stack
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02 ????
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03 dos33 nibble table
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03 nibble table/disk data
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04-07 GR page0
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08-0b GR page1
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0c-0f offscreen data ($c00 = disk load buffer)
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10-13 offscreen data2
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14-16 loader
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17-bf program/data (42.25k)
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17-89 program/compressed-data (30.25k)
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90-bf currently decompressed level data (12k)
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c0-cf I/O
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d0-ff ROM
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@ -50,19 +67,8 @@ Memory squeeze!
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2,053 over make elevator indicator a loop
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1,347 over use LZ4 instead of RLE
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4000 code
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40000 data
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20000 -> 12000
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20000 -> 12000
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24000+20000=44000
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20000 -> 10000
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20000 -> 10000
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20000+2000=
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Gave up, see if we can compress in chunks and decompress, sort of like
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my chiptune player does.
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Let's take a 12k region of memory = $3000
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@ -70,7 +76,7 @@ Let's take a 12k region of memory = $3000
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ID1 = 1461 2143\
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ID2 = 1759 2687|--- togeter in 01
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ID2 = 1759 2687|--- together in 01
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ID3 = 1195 1879/
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ID4 = 2514 8280\--- in 04
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ID5 = 1947 3492/
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@ -82,7 +88,3 @@ ID10 = 3397 5558/
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===== ======
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25890 12k
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10
ootw/TODO
10
ootw/TODO
@ -1,15 +1,5 @@
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TODO:
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intro:
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+ keyboard: skip to end, r to repeat forever
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+ Some bugs to fix at some point
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-> closing panel at entry to scanner, one frame missing grey line
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-> on building_car bg there are some grey patches that are
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grey 10 instead of grey 5
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general:
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+ move gr_make_quake out of gr_copy
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movement -- note these are hard due to limitations of the Apple II keyboard
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+ ability to run
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+ ability to jump
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@ -1,5 +1,5 @@
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5 HOME
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10 PRINT "OOTW PROOF-OF-CONCEPT V1.7 BY DEATER"
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10 PRINT "OOTW PROOF-OF-CONCEPT V1.8 BY DEATER"
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20 PRINT " DISK,LZ4 BY QKUMBA"
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25 PRINT " ,"
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30 PRINT "ORIGINAL BY ERIC CHAHI"
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44
ootw/intro.s
44
ootw/intro.s
@ -6,7 +6,11 @@
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.include "hardware.inc"
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intro:
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lda #0
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sta INTRO_REPEAT
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bit KEYRESET
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repeat_intro:
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;===========================
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; Enable graphics
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@ -1617,11 +1621,43 @@ tunnel1:
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jsr run_sequence
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gone_loop:
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lda KEYPRESS
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bpl gone_loop
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bit KEYRESET
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;======================
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; Pause a bit
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ldx #180
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jsr long_wait
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;gone_loop:
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; lda KEYPRESS
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; bpl gone_loop
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; bit KEYRESET
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; see if R pressed, if so, repeat
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; otherwise, return and indicate we want to start the game
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lda KEYPRESS
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bpl check_repeat ; if no keypress, jump ahead
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and #$7f ; clear high bit
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cmp #'R'
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bne check_repeat
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lda INTRO_REPEAT
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eor #$1
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sta INTRO_REPEAT
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check_repeat:
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bit KEYRESET ; reset keyboard strobe
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lda INTRO_REPEAT
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beq done_intro
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jmp repeat_intro
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done_intro:
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lda #1 ; start game
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sta WHICH_LOAD
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rts
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BIN
ootw/ootw.dsk
BIN
ootw/ootw.dsk
Binary file not shown.
@ -70,6 +70,7 @@ BLARGH = $69
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;DY_F = $6F
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INTRO_REPEAT = $7E
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ZPOS = $78
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REGISTER_DUMP = $70
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