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( usage: uxnemu sand.rom
mouse1 water
mouse2 sand
mouse3 rock )
|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 &auto $1 &pad $1 &x $2 &y $2 &addr $2 &pixel $1 &sprite $1
|80 @Controller &vector $2 &button $1 &key $1
|90 @Mouse &vector $2 &x $2 &y $2 &state $1 &pad $3 &scrollx $2 &scrolly $2
|a0 @File &vector $2 &success $2 &stat $2 &delete $1 &append $1 &name $2 &length $2 &read $2 &write $2
|c0 @DateTime &year $2 &month $1 &day $1 &hour $1 &minute $1 &second $1 &dotw $1 &doty $2 &isdst $1
|0100
(
@|vectors )
@on-reset
( theme )
#07cf .System/r DEO2
#0caf .System/g DEO2
#0faf .System/b DEO2
#0100 .Screen/width DEO2
#0100 .Screen/height DEO2
;on-frame .Screen/vector DEO2
;on-mouse .Mouse/vector DEO2
prng-init
#010e DEO
BRK
@on-frame ( -> )
eval
redraw
BRK
@on-mouse ( -> )
[ LIT2 00 -Mouse/state ] DEI NEQ #41 ADD ;cursor-icn update-cursor
( read mouse state )
.Mouse/state DEI ?&on-touch BRK
&on-touch ( -> )
( A mouse button was pressed )
.Mouse/state DEI DUP #04 EQU SUB
.Mouse/y DEI2 NIP
.Mouse/x DEI2 NIP
set-cell
BRK
(
@|core )
@eval-sand ( y x cell -- y x )
POP
OVR #ff EQU ?eval/resume
( south )
SWPk INC SWP STH2k get-cell #01 GTH ?&has-s
DUP2 STH2r swap-cells !eval/resume
&has-s
POP2r
( south sides )
SWPk INC SWP #01ff prng ADD #01 AND [ JMP SWP POP ] ADD STH2k get-cell #01 GTH ?&has-s2
DUP2 STH2r swap-cells !eval/resume
&has-s2
POP2r
!eval/resume
@eval-water ( y x cell -- y x )
POP
OVR #ff EQU ?eval/resume
( south )
SWPk INC SWP STH2k get-cell ?&has-s
DUP2 STH2r swap-cells !eval/resume
&has-s
POP2r
( south sides )
DUP2 #01ff prng ADD #01 AND [ JMP SWP POP ] ADD STH2k get-cell ?&has-s2
DUP2 STH2r swap-cells !eval/resume
&has-s2
POP2r
!eval/resume
@eval-rock ( y x cell -- y x )
POP
OVR #ff EQU ?eval/resume
( south )
SWPk INC SWP STH2k get-cell #01 GTH ?&has-s
DUP2 STH2r swap-cells !eval/resume
&has-s
POP2r
!eval/resume
@eval ( -- )
#ffff
&l
DUP2 get-cell
DUP #01 EQU ?eval-water
DUP #02 EQU ?eval-sand
DUP #03 EQU ?eval-rock
POP
&resume
#0001 SUB2 ORAk ?&l
POP2
@redraw ( -- )
#0000
&l
DUP2 #00ff AND2 .Screen/x DEO2
DUP2 #0100 DIV2 .Screen/y DEO2
DUP2 get-cell .Screen/pixel DEO
INC2 ORAk ?&l
POP2
JMP2r
@swap-cells ( a* b* -- )
#02 SFT2 ;world ADD2 LDAk STH ,&a STR2
#02 SFT2 ;world ADD2 LDAk STH ,&b STR2
STHr [ LIT2 &a $2 ] STA
STHr [ LIT2 &b $2 ] STA
JMP2r
@set-cell ( type y x -- )
#02 SFT2 ;world ADD2 STA
JMP2r
@get-cell ( y x -- type )
#02 SFT2 ;world ADD2 LDA
JMP2r
(
@|drawing )
@update-cursor ( color addr* -- )
[ LIT2 00 -Screen/auto ] DEO
#40 draw-cursor
.Mouse/x DEI2 ,draw-cursor/x STR2
.Mouse/y DEI2 ,draw-cursor/y STR2
.Screen/addr DEO2
@draw-cursor ( color -- )
[ LIT2 &x $2 ] .Screen/x DEO2
[ LIT2 &y $2 ] .Screen/y DEO2
.Screen/sprite DEO
JMP2r
(
@|stdlib )
@prng-init ( -- )
( seed )
#00 .DateTime/second DEI
#00 .DateTime/minute DEI #60 SFT2 EOR2
#00 .DateTime/hour DEI #c0 SFT2 EOR2 ,prng/x STR2
#00 .DateTime/hour DEI #04 SFT2
#00 .DateTime/day DEI #10 SFT2 EOR2
#00 .DateTime/month DEI #60 SFT2 EOR2
.DateTime/year DEI2 #a0 SFT2 EOR2 ,prng/y STR2
JMP2r
@prng ( -- number* )
LIT2 &x $2
DUP2 #50 SFT2 EOR2
DUP2 #03 SFT2 EOR2
LIT2 &y $2 DUP2 ,&x STR2
DUP2 #01 SFT2 EOR2 EOR2
,&y STR2k POP
JMP2r
(
@|assets )
@cursor-icn [
80c0 e0f0 f8e0 1000 ]
@world