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necroban.tal
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( Necroban | A Sokoban clone made in uxn -- WIP )
( macros )
%DEBUG { ;print-hex JSR2 #0a .Console/write DEO }
%DEBUG2 { SWP ;print-hex JSR2 ;print-hex JSR2 #0a .Console/write DEO }
%2* { #10 SFT } %2/ { #01 SFT } %2** { #10 SFT2 } %2// { #01 SFT2 }
%4* { #20 SFT } %4/ { #02 SFT } %4** { #20 SFT2 } %4// { #02 SFT2 }
%8* { #30 SFT } %8/ { #03 SFT } %8** { #30 SFT2 } %8// { #03 SFT2 }
%TOS { #00 SWP }
%RTN { JMP2r }
%GET-SHAPE-SPAN { .shape/type LDZ TOS 8** .shape/rotation LDZ TOS 2** ADD2 ;spans ADD2 LDA2 }
%GET-SHAPE { .shape/type LDZ TOS 8** .shape/rotation LDZ TOS 2** ADD2 ;shapes ADD2 LDA2 }
%GET-GRID-INDEX { SX SY ;get-grid-index JSR2 }
%SX { .Screen/x DEI2 8// }
%SY { .Screen/y DEI2 8// }
( devices )
|00 @System [ &vector $2 &wst $1 &rst $1 &pad $4 &r $2 &g $2 &b $2 &debug $1 &halt $1 ]
|10 @Console [ &vector $2 &read $1 &pad $5 &write $1 &error $1 ]
|20 @Screen [ &vector $2 &width $2 &height $2 &pad $2 &x $2 &y $2 &addr $2 &pixel $1 &sprite $1 ]
|30 @Audio0 [ &vector $2 &position $2 &output $1 &pad $3 &adsr $2 &length $2 &addr $2 &volume $1 &pitch $1 ]
|40 @Audio1 [ &vector $2 &position $2 &output $1 &pad $3 &adsr $2 &length $2 &addr $2 &volume $1 &pitch $1 ]
|80 @Controller [ &vector $2 &button $1 &key $1 ]
|0000
@player
&posx $1
&posy $1
&x $2
&y $2
&facing $1
&start $1
@x $1
@y $1
@tilex $2
@tiley $2
@timer $1
@targets $1
@lastx $1
@lasty $1
@arr $1
@tile-color $1
@end-level $1
@game
|0100 @reset-game ( -> )
( set screen size )
#0140 .Screen/width DEO2
#00f0 .Screen/height DEO2
( set theme )
#04cf .System/r DEO2
#1238 .System/g DEO2
#3898 .System/b DEO2
( update )
;on-frame .Screen/vector DEO2
( set audio channels )
#0001 .Audio0/adsr DEO2 ;sin-pcm .Audio0/addr DEO2
#0100 .Audio0/length DEO2 #dd .Audio0/volume DEO
#0001 .Audio1/adsr DEO2 ;sin-pcm .Audio1/addr DEO2
#0050 .Audio1/length DEO2 #dd .Audio1/volume DEO
( start game )
;init-game JSR2
BRK
@init-game ( )
#00 .player/start STZ
RTN
@reset-level ( ) RTN
@on-frame ( -> )
.timer LDZ INC DUP .timer STZ
#07 EQU #01 JCN BRK
( clear screen )
#00 ;draw-player JSR2
#00 ;draw-grid JSR2
( check input player )
;move-player JSR2
( draw screen )
#01 ;draw-grid JSR2
#02 ;draw-player JSR2
( invert player sprite on facing position )
.player/facing LDZ #01 NEQ ,&continue JCN
#12 ;draw-player JSR2
&continue
#00 .timer STZ
BRK
@move-player ( )
( level is completed? Stop player movement )
.end-level LDZ #01 NEQ ,&cont JCN
( fade colors )
.System/r DEI2 #0000 GTH2 ,&fade JCN ,&end JMP
&fade .System/r DEI2 NIP #10 SUB TOS .System/r DEO2 &end
RTN
&cont
( check button pressed )
.Controller/button DEI #07 SFT #01 AND #01 EQU ,&right JCN
.Controller/button DEI #06 SFT #01 AND #01 EQU ,&left JCN
.Controller/button DEI #04 SFT #01 AND #01 EQU ,&up JCN
.Controller/button DEI #05 SFT #01 AND #01 EQU ,&down JCN
RTN
&right ;move-right JSR2 RTN
&left ;move-left JSR2 RTN
&up ;move-up JSR2 RTN
&down ;move-down JSR2 RTN
RTN
@move-right ( )
#00 .player/facing STZ
#0001 #0000 ;has-skull JSR2 ,&move-skull-right JCN
#0001 #0000 ;has-wall JSR2 ,&no-right JCN
,&move-right JMP &no-right
#30 .Audio1/pitch DEO
RTN
&move-skull-right
#0002 #0000 ;has-wall JSR2 ,&end-right JCN
#0002 #0000 ;has-skull JSR2 ,&end-right JCN
#0001 #0002 ;push-skull-hor JSR2
#40 .Audio0/pitch DEO
&move-right
.player/x LDZ2 #0001 ADD2 .player/x STZ2
&end-right
;check-targets JSR2
RTN
@move-left ( )
#01 .player/facing STZ
#ffff #0000 ;has-skull JSR2 ,&move-skull-left JCN
#ffff #0000 ;has-wall JSR2 ,&no-left JCN
,&move-left JMP
&no-left
#30 .Audio1/pitch DEO
RTN
&move-skull-left
#fffe #0000 ;has-wall JSR2 ,&end-left JCN
#fffe #0000 ;has-skull JSR2 ,&end-left JCN
#ffff #fffe ;push-skull-hor JSR2
#40 .Audio0/pitch DEO
&move-left
.player/x LDZ2 #0001 SUB2 .player/x STZ2
&end-left
;check-targets JSR2
RTN
@move-down ( -> )
#0000 #0001 ;has-skull JSR2 ,&move-skull-down JCN
#0000 #0001 ;has-wall JSR2 ,&no-down JCN
,&move-down JMP
&no-down
#30 .Audio1/pitch DEO RTN
&move-skull-down
#0000 #0002 ;has-wall JSR2 ,&end-down JCN
#0000 #0002 ;has-skull JSR2 ,&end-down JCN
#0001 #0002 ;push-skull-vert JSR2
#40 .Audio0/pitch DEO
&move-down
.player/y LDZ2 #0001 ADD2 .player/y STZ2
&end-down
;check-targets JSR2
RTN
@move-up ( -> )
#0000 #ffff ;has-skull JSR2 ,&move-skull-up JCN
#0000 #ffff ;has-wall JSR2 ,&no-up JCN
,&move-up JMP
&no-up
#30 .Audio1/pitch DEO RTN
&move-skull-up
#0000 #fffe ;has-wall JSR2 ,&end-up JCN
#0000 #fffe ;has-skull JSR2 ,&end-up JCN
#ffff #fffe ;push-skull-vert JSR2
#40 .Audio0/pitch DEO
&move-up
.player/y LDZ2 #0001 SUB2 .player/y STZ2
&end-up
;check-targets JSR2
RTN
@push-skull-hor ( -- x y )
STH2 STH2
.player/x LDZ2 STH2r ADD2 .player/y LDZ2 ( .lastx LDZ ) #00 ;set-level-coords JSR2
.player/x LDZ2 STH2kr ADD2 .player/y LDZ2 ;get-level-coords JSR2 .lastx STZ
.lastx LDZ #c1 EQU ,&paint JCN ,&norm JMP
&paint
.player/x LDZ2 STH2r ADD2 .player/y LDZ2 #b2 ;set-level-coords JSR2
RTN
&norm
.player/x LDZ2 STH2r ADD2 .player/y LDZ2 #b1 ;set-level-coords JSR2
RTN
@push-skull-vert ( -- x y )
STH2 STH2
.player/x LDZ2 .player/y LDZ2 STH2r ADD2 ( .lasty LDZ ) #00 ;set-level-coords JSR2
.player/x LDZ2 .player/y LDZ2 STH2kr ADD2 ;get-level-coords JSR2 .lasty STZ
.lasty LDZ #c1 EQU ,&paint JCN ,&norm JMP
&paint
.player/x LDZ2 .player/y LDZ2 STH2r ADD2 #b2 ;set-level-coords JSR2
RTN
&norm
.player/x LDZ2 .player/y LDZ2 STH2r ADD2 #b1 ;set-level-coords JSR2
RTN
@has-wall ( -- x y )
STH2 STH2
.player/x LDZ2 STH2r ADD2 .player/y LDZ2 STH2r ADD2 ;get-level-coords JSR2 #a1 EQU
RTN
@has-skull ( -- x y )
STH2 STH2
.player/x LDZ2 STH2r ADD2 .player/y LDZ2 STH2r ADD2 ;get-level-coords JSR2 #b1 EQU
RTN
@draw-tile ( -- addr color )
STH STHkr .tile-color STZ STH2
#02 #00
@cols
DUP .y STZ
#02 #00
@rows
.arr LDZ INC .arr STZ
DUP .x STZ
.x LDZ TOS 8** .Screen/x DEO2
.y LDZ TOS 8** .Screen/y DEO2
.Screen/y DEI2 .tiley LDZ2 #40 SFT2 ADD2 .Screen/y DEO2
.Screen/x DEI2 .tilex LDZ2 #40 SFT2 ADD2 .Screen/x DEO2
STH2kr .arr LDZ #01 SUB TOS 8** ADD2 .Screen/addr DEO2
.tile-color LDZ .Screen/sprite DEO
&end
INC GTHk ,rows JCN
POP2
INC GTHk ,cols JCN
POP2 POPr POP2r
( reset tile pos )
#00 .arr STZ
RTN
@draw-player ( -- color )
STH
#02 #00
&cols
DUP .player/posy STZ
#02 #00
&rows
.arr LDZ INC .arr STZ
DUP .player/posx STZ
.player/posx LDZ TOS 8** .Screen/x DEO2
.player/posy LDZ TOS 8** .Screen/y DEO2
.Screen/y DEI2 .player/y LDZ2 #40 SFT2 ADD2 .Screen/y DEO2
.Screen/x DEI2 .player/x LDZ2 #40 SFT2 ADD2 .Screen/x DEO2
( .Screen/x DEI2 ADD2 )
;spr-player
.arr LDZ #01 SUB TOS 8**
.player/facing LDZ TOS #50 SFT2
ADD2 ADD2 .Screen/addr DEO2
STHkr .Screen/sprite DEO
&end
INC GTHk ,&rows JCN
POP2
INC GTHk ,&cols JCN
POP2 POPr
( reset tile pos )
#00 .arr STZ
RTN
@draw-walls ( -- col addr )
STH
;get-level-coords JSR2 #a1 EQU ,&draw JCN ,&end JMP
&draw
.Screen/x DEI2 #04 SFT2 .tilex STZ2
.Screen/y DEI2 #04 SFT2 .tiley STZ2
;spr-wall
STHkr
;draw-tile JSR2
&end
POPr
RTN
@draw-skulls ( -- )
STH
;get-level-coords JSR2 #b1 EQU ,&draw JCN ,&end JMP
&draw
.Screen/x DEI2 #04 SFT2 .tilex STZ2
.Screen/y DEI2 #04 SFT2 .tiley STZ2
;skull
STHkr #01 ADD
;draw-tile JSR2
&end
POPr
RTN
@draw-targets ( -- )
STH
;get-level-coords JSR2 #c1 EQU ,&draw JCN ,&end JMP
&draw
.Screen/x DEI2 #04 SFT2 .tilex STZ2
.Screen/y DEI2 #04 SFT2 .tiley STZ2
;spr-target
STHkr #02 ADD
;draw-tile JSR2
&end
POPr
RTN
@set-player ( )
;get-level-coords JSR2 #ff EQU ,&draw JCN ,&end JMP
&draw
.Screen/x DEI2 #04 SFT2 .player/x STZ2
.Screen/y DEI2 #04 SFT2 .player/y STZ2
#01 .player/start STZ
&end
RTN
@level-completed ( -> )
#01 .end-level STZ
#f100 .Audio1/adsr DEO2
#0200 .Audio1/length DEO2
#40 .Audio1/pitch DEO
RTN
@check-targets
#00 .targets STZ
#10 #00
&cols
DUP TOS #40 SFT2 #0000 ADD2 .Screen/y DEO2
#10 #00
&rows
DUP TOS #40 SFT2 #0000 ADD2 .Screen/x DEO2
.Screen/x DEI2 #04 SFT2
.Screen/y DEI2 #04 SFT2
;get-level-coords JSR2 #c1 NEQ ,&end JCN
.targets LDZ #01 ADD .targets STZ
&end
INC GTHk ,&rows JCN
POP2
INC GTHk ,&cols JCN
POP2
.targets LDZ #00 EQU ,&done JCN ,&cont JMP
&done
( check if all targets are done )
;level-completed JSR2
&cont
RTN
@draw-grid ( -- color )
STH
#0a #00
&cols
DUP TOS #40 SFT2 #0000 ADD2 .Screen/y DEO2
#0a #00
&rows
DUP TOS #40 SFT2 #0000 ADD2 .Screen/x DEO2
.Screen/x DEI2 #04 SFT2 .Screen/y DEI2 #04 SFT2 STHkr ;draw-walls JSR2
.Screen/x DEI2 #04 SFT2 .Screen/y DEI2 #04 SFT2 STHkr ;draw-skulls JSR2
.Screen/x DEI2 #04 SFT2 .Screen/y DEI2 #04 SFT2 STHkr ;draw-targets JSR2
( init player coords once )
.player/start LDZ #00 NEQ ,&end JCN
.Screen/x DEI2 #04 SFT2 .Screen/y DEI2 #04 SFT2 ;set-player JSR2
&end
INC GTHk ,&rows JCN
POP2
INC GTHk ,&cols JCN
POP2 POPr
RTN
@get-level-coords ( x* y* )
#000a MUL2 SWP2 ADD2 ;levels ADD2 LDA
RTN
@set-level-coords ( x* y* val )
STH ,&y STR2 ,&x STR2
STHr ,&x LDR2 ,&y LDR2 #000a MUL2 SWP2 ADD2 ;levels ADD2 STA
RTN
&x $2 &y $2
( =========== DEBUG ========= )
@print-hex ( value -- )
STHk #04 SFT ,&parse JSR .Console/write DEO
STHr #0f AND ,&parse JSR .Console/write DEO
JMP2r
&parse ( value -- char )
DUP #09 GTH ,&above JCN
#30 ADD JMP2r
&above #09
SUB #60 ADD JMP2r
#10 #00 SWP
RTN
( graphics from https://www.kenney.nl/assets/bit-pack )
( max width and height maps 16x16 sprites and tiles are 16px )
@levels
( huffman like encode/decode levels? )
( A1 wall | C1 target | B1 skull)
( 00 10 -- store map width and height? and offset bytes )
00 00 00 00 a1 a1 a1 00 00 00
00 00 00 00 a1 ff a1 00 00 00
00 00 00 00 a1 00 a1 a1 a1 a1
a1 a1 a1 a1 a1 c1 00 b1 c1 a1
a1 00 c1 00 b1 b1 00 a1 a1 a1
a1 00 a1 00 a1 00 00 a1 00 00
a1 00 00 00 a1 00 00 a1 00 00
a1 a1 a1 a1 a1 a1 a1 a1 00 00
@spr-player
7fbf 202f 2629 60f0
8ece 4c44 6464 4c8c
fcff 0c6c 6c0c 0000
c8c0 d8d8 c0c8 0000
8ece 4c44 6464 4c8c
7fbf 202f 2629 60f0
c8c0 d8d8 c0c8 0000
fcff 0c6c 6c0c 0000
@spr-target
0000 2218 1803 2404
0000 4418 18c0 2420
0424 0318 1822 0000
2024 c018 1844 0000
@spr-wall
007a 797a 0050 5d00
00be 00be 3ebe 8012
7777 0750 2656 2600
aa82 ba00 f6f6 f600
@skull
0007 1f3f 3f3c 3c1f
00c0 f0f8 f8c8 c8f8
010d 0c0f 0700 0000
f050 a0f0 e000 0000
( sound )
@sin-pcm
8083 8689 8c8f 9295 989b 9ea1 a4a7 aaad
b0b3 b6b9 bbbe c1c3 c6c9 cbce d0d2 d5d7
ded9 dee0 e2e4 e6e7 e9eb ecee f0f1 f2f4
f5f6 f7f8 f9fa fbfb fcfd fdfe fefe fefe
fffe fefe fefe fdfd fcfb fbfa f9f8 f7f6
f5f4 f2f1 f0ee eceb e9e7 e6e4 e2e0 deed
d9d7 d5d2 d0ce cbc9 c6c3 c1be bbb9 b6b3
b0ad aaa7 a4a1 9e9b 9895 928f 8c89 8683
807d 7a77 7471 6e6b 6865 625f 5c59 5653
504d 4a47 4542 3f3d 3a37 3532 302e 2b29
2725 2220 1e1c 1a19 1715 1412 100f 0e0c
0b0a 0908 0706 0505 0403 0302 0202 0202
0102 0202 0202 0303 0405 0506 0708 090a
0b0c 0e0f 1012 1415 1719 1a1c 1e20 2225
2729 2b2e 3032 3537 3a3d 3f42 4547 4a4d
5053 5659 5c5f 6265 686b 6e71 7477 7a7d