|00 @System &vector $2 &pad $6 &r $2 &g $2 &b $2
|20 @Screen &vector $2 &width $2 &height $2 &auto $1 &pad $1 &x $2 &y $2 &addr $2 &pixel $1 &sprite $1
|c0 @DateTime &year $2 &month $1 &day $1 &hour $1 &minute $1 &second $1 &dotw $1 &doty $2 &isdst $1


|0000

	@f $2

|0100

	( theme )
	#0f0f .System/r DEO2
	#0ff0 .System/g DEO2
	#0f0f .System/b DEO2
	( size )
	#0100 .Screen/width DEO2
	#0100 .Screen/height DEO2
	( animate )
	#01 .Screen/auto DEO
	;on-frame2 .Screen/vector DEO2

	prng-init

BRK

@on-frame2 ( -> )

	[ LIT2 &f $2 ] INC2k ,&f STR2
		draw-circle

BRK

@print ( short* -- )

	SWP ,&byte JSR
	&byte ( byte -- ) DUP #04 SFT ,&char JSR
	&char ( char -- ) #0f AND DUP #09 GTH #27 MUL ADD #30 ADD #18 DEO

JMP2r

@draw-bg ( -- )

	#0000 .Screen/y DEO2
	#0008 .f LDZ2 #01 SFT2 #004f AND2 SUB2 .Screen/x DEO2
	#f1 .Screen/auto DEO
	;tile-icn .Screen/addr DEO2
	#2200
	&l
		DUP #01 AND .Screen/sprite DEO
		INC GTHk ,&l JCN
	POP2

JMP2r

@draw-circles ( offset* -- )

	STH2
	#1000
	&l
		#00 OVR #40 SFT2 STH2kr ADD2 ;draw-circle JSR2
		INC GTHk ,&l JCN
	POP2
	POP2r

JMP2r

@draw-circle ( offset* -- )

	( x )
	DUP2 #001f ADD2 #007f AND2 #10 SFT2 ;cos ADD2 LDA2 #09 SFT2
		#0080 ADD2
		#0040 SUB2
		.Screen/x DEO2
	( y )
	 #007f AND2 #10 SFT2 ;cos ADD2 LDA2 #09 SFT2 
		#0030 ADD2 .Screen/y DEO2
	prng ADD #80 ORA .Screen/pixel DEO

JMP2r
	&colors 05 0a 0f 0a

@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 )

@tile-icn
	ffff ffff ffff ffff
@circle-icn
	030f 3f3f 7f7f ffff c0f0 fcfc fefe ffff
	ffff 7f7f 3f3f 0f03 ffff fefe fcfc f0c0

@cos ( cos256 )
ffff ffff ffff fefe fdfc fcfb faf9 f8f7 
f6f5 f3f2 f0ef edec eae8 e6e4 e2e0 dedc 
dad8 d5d3 d1ce ccc9 c7c4 c1bf bcb9 b6b3 
b0ae aba8 a5a2 9f9c 9895 928f 8c89 8683 
807c 7976 7370 6d6a 6763 605d 5a57 5451 
4f4c 4946 4340 3e3b 3836 3331 2e2c 2a27 
2523 211f 1d1b 1917 1513 1210 0f0d 0c0a 
0908 0706 0504 0303 0201 0100 0000 0000 
0000 0000 0000 0101 0203 0304 0506 0708 
090a 0c0d 0f10 1213 1517 191b 1d1f 2123 
2527 2a2c 2e31 3336 383b 3e40 4346 494c 
4f51 5457 5a5d 6063 676a 6d70 7376 797c 
7f83 8689 8c8f 9295 989c 9fa2 a5a8 abae 
b0b3 b6b9 bcbf c1c4 c7c9 ccce d1d3 d5d8 
dadc dee0 e2e4 e6e8 eaec edef f0f2 f3f5 
f6f7 f8f9 fafb fcfc fdfe feff ffff ffff