mirror of https://git.sr.ht/~rabbits/uxn
116 lines
2.9 KiB
Plaintext
116 lines
2.9 KiB
Plaintext
( dev/mouse )
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%RTN { JMP2r }
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%ABS2 { DUP2 #000f SFT2 EQU #04 JNZ #ffff MUL2 }.
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( devices )
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|00 @System [ &vector $2 &pad $6 &r $2 &g $2 &b $2 ]
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|20 @Screen [ &vector $2 &width $2 &height $2 &pad $2 &x $2 &y $2 &addr $2 &color $1 ]
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|90 @Mouse [ &vector $2 &x $2 &y $2 &state $1 &chord $1 ]
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|0000
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@line [ &x0 $2 &y0 $2 &x $2 &y $2 &sx $2 &sy $2 &dx $2 &dy $2 &e1 $2 &e2 $2 ]
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@pointer [ &x $2 &y $2 &lastx $2 &lasty $2 &state $1 ]
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@color $1
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( program )
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|0100 ( -> )
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( theme )
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#f0f0 .System/r DEO2
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#f00f .System/g DEO2
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#f000 .System/b DEO2
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( vectors )
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;on-mouse .Mouse/vector DEO2
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BRK
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@on-mouse ( -> )
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;draw-cursor JSR2
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( on down )
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.Mouse/state DEI #00 NEQ .pointer/state PEK #00 EQU #0101 EQU2 ,on-mouse-down JNZ
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( on drag )
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.Mouse/state DEI #00 NEQ ,on-mouse-drag JNZ
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.Mouse/state DEI .pointer/state POK
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BRK
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@on-mouse-down ( -> )
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( record start position )
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.Mouse/x DEI2 DUP2 .pointer/x POK2 .pointer/lastx POK2
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.Mouse/y DEI2 DUP2 .pointer/y POK2 .pointer/lasty POK2
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.Mouse/state DEI .pointer/state POK
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BRK
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@on-mouse-drag ( -> )
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( draw line )
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.pointer/lastx PEK2
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.pointer/lasty PEK2
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.pointer/x PEK2
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.pointer/y PEK2
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#01 [ .Mouse/state DEI #10 EQU #02 MUL ADD ]
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;draw-line JSR2
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( record last position )
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.Mouse/x DEI2 .pointer/lastx POK2
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.Mouse/y DEI2 .pointer/lasty POK2
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.Mouse/state DEI .pointer/state POK
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BRK
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@draw-cursor ( -- )
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( clear last cursor )
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;clear .Screen/addr DEO2
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.pointer/x PEK2 .Screen/x DEO2
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.pointer/y PEK2 .Screen/y DEO2
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#30 .Screen/color DEO
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( record pointer positions )
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.Mouse/x DEI2 .pointer/x POK2
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.Mouse/y DEI2 .pointer/y POK2
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( draw new cursor )
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;cursor .Screen/addr DEO2
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.pointer/x PEK2 .Screen/x DEO2
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.pointer/y PEK2 .Screen/y DEO2
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( colorize on state )
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#31 [ .Mouse/state DEI #00 NEQ ] ADD .Screen/color DEO
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RTN
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@draw-line ( x1 y1 x2 y2 color -- )
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( load ) .color POK .line/y0 POK2 .line/x0 POK2 .line/y POK2 .line/x POK2
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.line/x0 PEK2 .line/x PEK2 SUB2 ABS2 .line/dx POK2
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.line/y0 PEK2 .line/y PEK2 SUB2 ABS2 #0000 SWP2 SUB2 .line/dy POK2
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#ffff #00 .line/x PEK2 .line/x0 PEK2 LTS2 #0002 MUL2 ADD2 .line/sx POK2
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#ffff #00 .line/y PEK2 .line/y0 PEK2 LTS2 #0002 MUL2 ADD2 .line/sy POK2
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.line/dx PEK2 .line/dy PEK2 ADD2 .line/e1 POK2
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&loop
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( draw )
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.line/x PEK2 .Screen/x DEO2
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.line/y PEK2 .Screen/y DEO2
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.color PEK .Screen/color DEO
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.line/x PEK2 .line/x0 PEK2 EQU2 .line/y PEK2 .line/y0 PEK2 EQU2 #0101 EQU2 ,&end JNZ
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.line/e1 PEK2 #0002 MUL2 .line/e2 POK2
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.line/e2 PEK2 .line/dy PEK2 LTS2 ,&skipy JNZ
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.line/e1 PEK2 .line/dy PEK2 ADD2 .line/e1 POK2
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.line/x PEK2 .line/sx PEK2 ADD2 .line/x POK2
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&skipy
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.line/e2 PEK2 .line/dx PEK2 GTS2 ,&skipx JNZ
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.line/e1 PEK2 .line/dx PEK2 ADD2 .line/e1 POK2
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.line/y PEK2 .line/sy PEK2 ADD2 .line/y POK2
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&skipx
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,&loop JMP
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&end
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RTN
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@clear [ 0000 0000 0000 0000 ]
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@cursor [ 80c0 e0f0 f8e0 1000 ]
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