uxn/projects/examples/demos/move.tal

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Tal
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( Move:
Use controller arrows, leave a slime. )
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|00 @System &vector $2 &pad $6 &r $2 &g $2 &b $2
|20 @Screen &vector $2 &width $2 &height $2 &auto $1 &pad $1 &x $2 &y $2 &addr $2 &pixel $1 &sprite $1
|80 @Controller &vector $2 &button $1 &key $1
|0000
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@hello &x $2 &y $2
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|0100 ( -> )
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( theme )
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#c0f4 .System/r DEO2
#c0fc .System/g DEO2
#c0f7 .System/b DEO2
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( vectors )
;on-frame .Screen/vector DEO2
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( set origin )
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.Screen/width DEI2 #01 SFT2 .hello/x STZ2
.Screen/height DEI2 #01 SFT2 .hello/y STZ2
( drawing mode )
#16 .Screen/auto DEO
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( defaults )
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#00 ;on-frame/draw JMP2
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BRK
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@on-frame ( -> )
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.Controller/button DEI
DUP #00 NEQ ,&continue JCN
POP BRK
&continue
( clear )
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#40 .Screen/sprite DEO
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( movement )
DUP #10 AND #00 EQU ,&no-u JCN .hello/y LDZ2k #0001 SUB2 ROT STZ2 &no-u
DUP #20 AND #00 EQU ,&no-d JCN .hello/y LDZ2k INC2 ROT STZ2 &no-d
DUP #40 AND #00 EQU ,&no-l JCN .hello/x LDZ2k #0001 SUB2 ROT STZ2 &no-l
DUP #80 AND #00 EQU ,&no-r JCN .hello/x LDZ2k INC2 ROT STZ2 &no-r
&draw
( draw hello )
.hello/x LDZ2 STH2k .Screen/x DEO2
.hello/y LDZ2 STH2k .Screen/y DEO2
;hello-chr .Screen/addr DEO2
#c1 .Screen/sprite DEOk DEO
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( draw slime )
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STH2r .Screen/y DEO2
STH2r .Screen/x DEO2
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;slime-icn .Screen/addr DEO2
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,get-slime JSR .Screen/sprite DEOk DEO
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BRK
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@get-slime ( button -- color )
#0f AND
DUP #01 NEQ ,&no-ctrl JCN POP #05 JMP2r &no-ctrl
DUP #02 NEQ ,&no-alt JCN POP #0a JMP2r &no-alt
POP #0f
JMP2r
@hello-chr
0007 1820 2040 4044 0000 071f 1f3f 3f3b
00e0 1804 0402 0222 0000 e0f8 f8fc fcdc
4040 4423 2018 0700 3f3f 3b1c 1f07 0000
0202 22c4 0418 e000 fcfc dc38 f8e0 0000
@slime-icn
0000 0000 0003 0707 0000 0000 00c0 e0e0
0707 0300 0000 0000 e0e0 c000 0000 0000