cube3d.tal (3600B)
1 ( Cube3d: Just a cube, y'know ) 2 3 |00 @System &vector $2 &wst $1 &rst $1 &eaddr $2 &ecode $1 &pad $1 &r $2 &g $2 &b $2 &debug $1 &halt $1 4 |20 @Screen &vector $2 &width $2 &height $2 &auto $1 &pad $1 &x $2 &y $2 &addr $2 &pixel $1 &sprite $1 5 6 |0000 7 8 @timer $1 9 @cube &v0 $8 &v4 $8 10 @center &x $2 &y $2 11 12 |0100 13 14 @on-reset ( -> ) 15 ( | theme ) 16 #4fcd .System/r DEO2 17 #4fc3 .System/g DEO2 18 #dfc2 .System/b DEO2 19 ( | center ) 20 .Screen/width DEI2 #01 SFT2 #0040 SUB2 .center/x STZ2 21 .Screen/height DEI2 #01 SFT2 #0040 SUB2 .center/y STZ2 22 ( | begin. ) 23 ;on-frame .Screen/vector DEO2 24 25 @on-frame ( -> ) 26 ( | clear ) 27 #0000 DUP2 .Screen/x DEO2 28 .Screen/y DEO2 29 [ LIT2 80 -Screen/pixel ] DEO 30 ( | draw ) 31 .timer LDZk INC SWP STZ 32 <draw-cube> 33 BRK 34 35 @<draw-cube> ( frame -- ) 36 ( | create box ) 37 #0800 38 &loop ( -- ) 39 STHk [ LIT2 00 -timer ] LDZ #00 STHkr INC #07 AND #60 SFT ADD2 #00ff AND2 ;table ADD2 LDA #01 SFT #00 .timer LDZ #00 STHkr #60 SFT ADD2 #00ff AND2 ;table ADD2 LDA #02 SFT #00 STHkr #62 SFT2 ADD2 .cube/v0 STHr DUP ADD ADD STZ2 40 INC GTHk ?&loop 41 POP2 42 ( | vertices ) 43 #0800 44 &ver-loop ( -- ) 45 DUP DUP ADD .cube ADD LDZ2 <draw-vertex> 46 INC GTHk ?&ver-loop 47 POP2 48 ( lines ) #0400 49 &line-loop ( -- ) 50 STHk .cube/v0 STHkr DUP ADD ADD .cube/v0 STHkr INC #03 AND DUP ADD ADD <draw-edge> 51 .cube/v0 STHkr DUP ADD ADD .cube/v4 STHkr DUP ADD ADD <draw-edge> 52 .cube/v4 STHkr DUP ADD ADD .cube/v4 STHr INC #03 AND DUP ADD ADD <draw-edge> 53 INC GTHk ?&line-loop 54 POP2 JMP2r 55 56 @<draw-edge> ( a b -- ) 57 STH STH 58 ( ) #00 STHkr LDZ .center/x LDZ2 ADD2 59 ( ) #00 STHr INC LDZ .center/y LDZ2 ADD2 60 ( ) #00 STHkr LDZ .center/x LDZ2 ADD2 61 ( ) #00 STHr INC LDZ .center/y LDZ2 ADD2 #05 <draw-line> 62 JMP2r 63 64 @<draw-vertex> ( x y -- ) 65 #00 SWP #0004 SUB2 .center/y LDZ2 ADD2 .Screen/y DEO2 66 #00 SWP #0003 SUB2 .center/x LDZ2 ADD2 .Screen/x DEO2 67 ;&icn .Screen/addr DEO2 68 [ LIT2 05 -Screen/sprite ] DEO 69 JMP2r 70 &icn [ 0000 387c 7c7c 3800 ] 71 72 @<draw-line> ( x1* y1* x2* y2* color -- ) 73 ,&color STR 74 ,&y STR2 75 ,&x STR2 76 ,&y2 STR2 77 ,&x2 STR2 78 ,&x LDR2 ,&x2 LDR2 SUB2 abs2 ,&dx STR2 79 #0000 ,&y LDR2 ,&y2 LDR2 SUB2 abs2 SUB2 ,&dy STR2 80 #ffff [ LIT2 00 _&x2 ] LDR2 ,&x LDR2 lts2 DUP2 ADD2 ADD2 ,&sx STR2 81 #ffff [ LIT2 00 _&y2 ] LDR2 ,&y LDR2 lts2 DUP2 ADD2 ADD2 ,&sy STR2 82 [ LIT2 &dx $2 ] [ LIT2 &dy $2 ] ADD2 STH2 83 &while ( -- ) 84 [ LIT2 &x2 $2 ] DUP2 .Screen/x DEO2 85 [ LIT2 &x $2 ] EQU2 [ LIT2 &y2 $2 ] DUP2 .Screen/y DEO2 86 [ LIT2 &y $2 ] EQU2 [ LIT2 &color $1 -Screen/pixel ] DEO 87 AND ?&end 88 STH2kr DUP2 ADD2 DUP2 ,&dy LDR2 lts2 ?&skipy 89 STH2r ,&dy LDR2 ADD2 STH2 ,&x2 LDR2 [ LIT2 &sx $2 ] ADD2 ,&x2 STR2 90 &skipy ( -- ) 91 ,&dx LDR2 gts2 ?&while 92 STH2r ,&dx LDR2 ADD2 STH2 ,&y2 LDR2 [ LIT2 &sy $2 ] ADD2 ,&y2 STR2 93 !&while 94 &end POP2r JMP2r 95 96 @abs2 ( a* -- f ) 97 DUP2 #0f SFT2 EQU ?{ #0000 SWP2 SUB2 } 98 JMP2r 99 100 @lts2 ( a* b* -- f ) 101 #8000 STH2k ADD2 SWP2 STH2r ADD2 GTH2 JMP2r 102 103 @gts2 ( a* b* -- f ) 104 #8000 STH2k ADD2 SWP2 STH2r ADD2 LTH2 JMP2r 105 106 @table ( 256 xy ) 107 [ 108 f7f8 f9fa fbfc fcfd fefe ffff ffff ffff 109 ffff ffff fffe fefd fcfc fbfa f9f8 f7f6 110 f5f3 f2f0 efed ecea e8e6 e4e2 e0de dcda 111 d8d5 d3d1 cecc c9c7 c4c1 bfbc b9b6 b3b0 112 aeab a8a5 a29f 9c98 9592 8f8c 8986 8380 113 7c79 7673 706d 6a67 6360 5d5a 5754 514f 114 4c49 4643 403e 3b38 3633 312e 2c2a 2725 115 2321 1f1d 1b19 1715 1312 100f 0d0c 0a09 116 0807 0605 0403 0302 0101 0000 0000 0000 117 0000 0000 0001 0102 0303 0405 0607 0809 118 0a0c 0d0f 1012 1315 1719 1b1d 1f21 2325 119 272a 2c2e 3133 3638 3b3e 4043 4649 4c4f 120 5154 575a 5d60 6367 6a6d 7073 7679 7c7f 121 8386 898c 8f92 9598 9c9f a2a5 a8ab aeb0 122 b3b6 b9bc bfc1 c4c7 c9cc ced1 d3d5 d8da 123 dcde e0e2 e4e6 e8ea eced eff0 f2f3 f5f6 ] 124