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Rewrote the snake example

This commit is contained in:
neauoire 2021-03-14 17:32:40 -07:00
parent 481a318732
commit c549a6c710
2 changed files with 32 additions and 36 deletions
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2
build.sh
View File

@ -20,5 +20,5 @@ cc -std=c89 -DDEBUG -Wall -Wno-unknown-pragmas -Wpedantic -Wshadow -Wextra -Werr
# cc uxn.c emulator.c -std=c89 -Os -DNDEBUG -g0 -s -Wall -Wno-unknown-pragmas -L/usr/local/lib -lSDL2 -o bin/emulator
# run
./bin/assembler projects/software/left.usm bin/boot.rom
./bin/assembler projects/examples/dev.controller.usm bin/boot.rom
./bin/emulator bin/boot.rom

66
projects/examples/dev.controller.usm
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@ -1,62 +1,57 @@
( Controller )
%INCR2 { #0001 ADD2 }
%DECR2 { #0001 SUB2 }
%HALF2 { #0002 DIV2 }
;slime { color 1 }
|0100 @RESET
( set origin )
~Screen.width #0002 DIV2 =Sprite.x
~Screen.height #0002 DIV2 =Sprite.y
~Screen.width HALF2 =Sprite.x
~Screen.height HALF2 =Sprite.y
,default_icn =Sprite.addr
#11 =Sprite.color
#0a =slime
BRK
|c000 @FRAME
@FRAME
~Controller.buttons #f0 AND #00 EQU BRK?
#0a =slime
( hold ctrl key to change slime color )
,no-ctrl ~Controller.buttons #0f AND #01 NEQ JMP2? POP2
#05 =slime
@no-ctrl
( hold alt key to change slime color )
,no-alt ~Controller.buttons #0f AND #02 NEQ JMP2? POP2
#0f =slime
@no-alt
~Controller.buttons #0f AND
DUP #01 NEQ ,$no-ctrl ROT JMP2? POP2 #05 =slime $no-ctrl
DUP #02 NEQ ,$no-alt ROT JMP2? POP2 #0f =slime $no-alt
POP
( clear ) #10 =Sprite.color
( detect movement )
,no-up ~Controller.buttons #f0 AND #10 NEQ JMP2? POP2
( clear ) #10 =Sprite.color
( move ) ~Sprite.y #0001 SUB2 =Sprite.y ,up_icn =Sprite.addr
( draw ) ,redraw JSR2 BRK
@no-up
,no-down ~Controller.buttons #f0 AND #20 NEQ JMP2? POP2
( clear ) #10 =Sprite.color
( move ) ~Sprite.y #0001 ADD2 =Sprite.y ,down_icn =Sprite.addr
( draw ) ,redraw JSR2 BRK
@no-down
,no-left ~Controller.buttons #f0 AND #40 NEQ JMP2? POP2
( clear ) #10 =Sprite.color
( move ) ~Sprite.x #0001 SUB2 =Sprite.x ,left_icn =Sprite.addr
( draw ) ,redraw JSR2 BRK
@no-left
,no-right ~Controller.buttons #f0 AND #80 NEQ JMP2? POP2
( clear ) #10 =Sprite.color
( move ) ~Sprite.x #0001 ADD2 =Sprite.x ,right_icn =Sprite.addr
( draw ) ,redraw JSR2 BRK
@no-right
BRK
@redraw
~Controller.buttons #f0 AND
DUP #04 ROR #01 AND #01 NEQ ,$no-up ROT JMP2? POP2
( move ) ~Sprite.y DECR2 =Sprite.y ,up_icn =Sprite.addr $no-up
DUP #05 ROR #01 AND #01 NEQ ,$no-down ROT JMP2? POP2
( move ) ~Sprite.y INCR2 =Sprite.y ,down_icn =Sprite.addr $no-down
DUP #06 ROR #01 AND #01 NEQ ,$no-left ROT JMP2? POP2
( move ) ~Sprite.x DECR2 =Sprite.x ,left_icn =Sprite.addr $no-left
DUP #07 ROR #01 AND #01 NEQ ,$no-right ROT JMP2? POP2
( move ) ~Sprite.x INCR2 =Sprite.x ,right_icn =Sprite.addr $no-right
POP
( draw face )
#11 =Sprite.color
( draw slime )
,slime_icn =Sprite.addr
~slime =Sprite.color
RTN
BRK
@default_icn [ 3c7e ffdb ffe7 7e3c ]
@up_icn [ 2466 e7db ffff 7e3c ]
@ -67,6 +62,7 @@ RTN
|d000 @ERROR BRK
|FF00 ;Console { pad 8 char 1 byte 1 short 2 }
|FF10 ;Screen { width 2 height 2 pad 4 y 2 x 2 color 1 }
|FF20 ;Sprite { pad 8 x 2 y 2 addr 2 color 1 }
|FF30 ;Controller { buttons 1 }