2022-03-25 19:05:11 +00:00
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( Cube3d:
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Just a cube, y'know )
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2022-02-05 23:37:04 +00:00
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2022-03-25 19:05:11 +00:00
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|00 @System &vector $2 &wst $1 &rst $1 &eaddr $2 &ecode $1 &pad $1 &r $2 &g $2 &b $2 &debug $1 &halt $1
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|20 @Screen &vector $2 &width $2 &height $2 &auto $1 &pad $1 &x $2 &y $2 &addr $2 &pixel $1 &sprite $1
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2022-02-05 23:37:04 +00:00
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|0000
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@timer $1
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@color $1
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2022-03-25 19:05:11 +00:00
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@cube &v0 $8 &v4 $8
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@line &x $2 &y $2 &dx $2 &dy $2 &e1 $2
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@center &x $2 &y $2
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2022-02-05 23:37:04 +00:00
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( program )
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|0100 ( -> )
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( theme )
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2022-03-25 19:05:11 +00:00
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#4fcd .System/r DEO2
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#4fc3 .System/g DEO2
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#dfc2 .System/b DEO2
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( center )
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.Screen/width DEI2 #01 SFT2 #0040 SUB2 .center/x STZ2
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.Screen/height DEI2 #01 SFT2 #0040 SUB2 .center/y STZ2
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( begin. )
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2022-02-05 23:37:04 +00:00
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;on-frame .Screen/vector DEO2
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@on-frame ( -> )
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#00 ;draw-cube JSR2
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.timer LDZk INC SWP STZ
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#05 ;draw-cube JSR2
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BRK
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@draw-cube ( frame color -- )
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.color STZ
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( create box )
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#0800
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&loop
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STHk
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2022-03-25 19:05:11 +00:00
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#00 .timer LDZ [ #00 STHkr INC #07 AND #60 SFT ADD2 ] #00ff AND2 ;table ADD2 LDA #01 SFT
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#00 .timer LDZ [ #00 STHkr #60 SFT ADD2 ] #00ff AND2 ;table ADD2 LDA #02 SFT [ #00 STHkr #62 SFT2 ADD2 ]
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2022-07-22 18:57:45 +00:00
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.cube/v0 STHr DUP ADD ADD STZ2
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2022-02-05 23:37:04 +00:00
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INC GTHk ,&loop JCN
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POP2
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( vertices )
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#0800
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&ver-loop
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2022-07-22 18:57:45 +00:00
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DUP DUP ADD .cube ADD LDZ2 ;draw-vertex JSR2
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2022-02-05 23:37:04 +00:00
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INC GTHk ,&ver-loop JCN
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POP2
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( lines )
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#0400
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&line-loop
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STHk
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2022-07-22 18:57:45 +00:00
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.cube/v0 STHkr DUP ADD ADD .cube/v0 STHkr INC #03 AND DUP ADD ADD ,trace JSR
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.cube/v0 STHkr DUP ADD ADD .cube/v4 STHkr DUP ADD ADD ,trace JSR
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.cube/v4 STHkr DUP ADD ADD .cube/v4 STHr INC #03 AND DUP ADD ADD ,trace JSR
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2022-02-05 23:37:04 +00:00
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INC GTHk ,&line-loop JCN
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POP2
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2022-03-25 19:05:11 +00:00
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JMP2r
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2022-02-05 23:37:04 +00:00
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2022-03-25 19:05:11 +00:00
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@trace ( a b -- )
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2022-02-05 23:37:04 +00:00
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STH STH
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2022-03-25 19:05:11 +00:00
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#00 STHkr LDZ .center/x LDZ2 ADD2 #00 STHr INC LDZ .center/y LDZ2 ADD2
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#00 STHkr LDZ .center/x LDZ2 ADD2 #00 STHr INC LDZ .center/y LDZ2 ADD2
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.color LDZ ;draw-line JSR2
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2022-02-05 23:37:04 +00:00
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2022-03-25 19:05:11 +00:00
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JMP2r
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2022-02-05 23:37:04 +00:00
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@draw-vertex ( x y -- )
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2022-03-25 19:05:11 +00:00
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#00 SWP #0004 SUB2 .center/y LDZ2 ADD2 .Screen/y DEO2
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#00 SWP #0003 SUB2 .center/x LDZ2 ADD2 .Screen/x DEO2
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2022-02-05 23:37:04 +00:00
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;&icn .Screen/addr DEO2
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2022-03-25 19:05:11 +00:00
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.color LDZ .Screen/sprite DEO
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2022-02-05 23:37:04 +00:00
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2022-03-25 19:05:11 +00:00
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JMP2r
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2022-02-05 23:37:04 +00:00
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&icn 0000 387c 7c7c 3800
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2022-03-25 19:05:11 +00:00
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@draw-line ( x1* y1* x2* y2* color -- )
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( load ) STH ,&y STR2 ,&x STR2 .line/y STZ2 .line/x STZ2
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,&x LDR2 .line/x LDZ2 SUB2 ;abs2 JSR2 .line/dx STZ2
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#0000 ,&y LDR2 .line/y LDZ2 SUB2 ;abs2 JSR2 SUB2 .line/dy STZ2
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2022-07-14 21:57:56 +00:00
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#ffff #00 .line/x LDZ2 ,&x LDR2 ;lts2 JSR2 DUP2 ADD2 ADD2 ,&sx STR2
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#ffff #00 .line/y LDZ2 ,&y LDR2 ;lts2 JSR2 DUP2 ADD2 ADD2 ,&sy STR2
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2022-02-05 23:37:04 +00:00
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.line/dx LDZ2 .line/dy LDZ2 ADD2 .line/e1 STZ2
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&loop
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2022-03-25 19:05:11 +00:00
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.line/x LDZ2 DUP2 .Screen/x DEO2 [ LIT2 &x $2 ] EQU2
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.line/y LDZ2 DUP2 .Screen/y DEO2 [ LIT2 &y $2 ] EQU2
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STHkr .Screen/pixel DEO
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AND ,&end JCN
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2022-07-14 21:57:56 +00:00
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.line/e1 LDZ2 DUP2 ADD2 DUP2
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2022-03-25 19:05:11 +00:00
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.line/dy LDZ2 ;lts2 JSR2 ,&skipy JCN
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2022-02-05 23:37:04 +00:00
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.line/e1 LDZ2 .line/dy LDZ2 ADD2 .line/e1 STZ2
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2022-03-25 19:05:11 +00:00
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.line/x LDZ2 [ LIT2 &sx $2 ] ADD2 .line/x STZ2
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2022-02-05 23:37:04 +00:00
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&skipy
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2022-03-25 19:05:11 +00:00
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.line/dx LDZ2 ;gts2 JSR2 ,&skipx JCN
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2022-02-05 23:37:04 +00:00
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.line/e1 LDZ2 .line/dx LDZ2 ADD2 .line/e1 STZ2
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2022-03-25 19:05:11 +00:00
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.line/y LDZ2 [ LIT2 &sy $2 ] ADD2 .line/y STZ2
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2022-02-05 23:37:04 +00:00
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&skipx
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2022-03-25 19:05:11 +00:00
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,&loop JMP
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2022-02-05 23:37:04 +00:00
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&end
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2022-03-25 19:05:11 +00:00
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POPr
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JMP2r
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2022-02-05 23:37:04 +00:00
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2022-03-25 19:05:11 +00:00
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@abs2 DUP2 #0f SFT2 EQU #05 JCN #0000 SWP2 SUB2 JMP2r
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2022-04-05 23:41:49 +00:00
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@lts2 #8000 STH2k ADD2 SWP2 STH2r ADD2 GTH2 JMP2r
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@gts2 #8000 STH2k ADD2 SWP2 STH2r ADD2 LTH2 JMP2r
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2022-02-05 23:37:04 +00:00
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@table ( 256 xy )
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f7f8 f9fa fbfc fcfd fefe ffff ffff ffff
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ffff ffff fffe fefd fcfc fbfa f9f8 f7f6
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f5f3 f2f0 efed ecea e8e6 e4e2 e0de dcda
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d8d5 d3d1 cecc c9c7 c4c1 bfbc b9b6 b3b0
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aeab a8a5 a29f 9c98 9592 8f8c 8986 8380
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7c79 7673 706d 6a67 6360 5d5a 5754 514f
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4c49 4643 403e 3b38 3633 312e 2c2a 2725
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2321 1f1d 1b19 1715 1312 100f 0d0c 0a09
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0807 0605 0403 0302 0101 0000 0000 0000
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0000 0000 0001 0102 0303 0405 0607 0809
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0a0c 0d0f 1012 1315 1719 1b1d 1f21 2325
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272a 2c2e 3133 3638 3b3e 4043 4649 4c4f
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5154 575a 5d60 6367 6a6d 7073 7679 7c7f
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8386 898c 8f92 9598 9c9f a2a5 a8ab aeb0
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b3b6 b9bc bfc1 c4c7 c9cc ced1 d3d5 d8da
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dcde e0e2 e4e6 e8ea eced eff0 f2f3 f5f6
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