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function scrollingcircles(y, speed, spacing, radius, color)
for i = 1, 256, spacing do
circfill((i-(gt*speed))%256-radius*2, y, radius, color)
end
end
function scrollingsprite(sprite,x,y,w,h,speed,flip)
flip = flip or false
spr(sprite, -(gt*speed+x+w*8)%(128+w*8)-w*8, y, w, h, flip) --moved the "-" from gt in hopes of fixing the flickering
end
--ringed planet
function bgplanetmegasprite(x,y)
--default values
--x = 160-gt
--y = 50
palt(0,false)
palt(13,true)
spr(200,x,y,7,4)
spr(194,x-8,y+32,6,2)
palt()
end
function drawbg()
cls(0)
camera(screenshakex/3, screenshakey/3)
--stars
for i = 1, 64, 1 do
pset((((-gt*0.1)+i*4.3824)*(i/32))%128, sin(i*0.536382)*64+64, 4) --funny random star algorithm!!
end
--galaxies
spr(239, 20, 30, 1, 1)
spr(255, 108, 40, 1, 1)
spr(255, 42, 74, 1, 1, true, true)
--ringed planet
bgplanetmegasprite(150-(gt)%300,50)
--clouds
scrollingcircles(-9, 24, 22, 22, 2)
--small clouds
scrollingsprite(207, 60, 10, 1, 1, 28)
scrollingsprite(207, 120, 10, 1, 1, 28)
scrollingsprite(207, 130, 12, 1, 1, 29)
scrollingsprite(207, 160, 15, 1, 1, 30)--
scrollingsprite(223, 145, 15, 1, 1, 30)--
scrollingsprite(223, 20, 10, 1, 1, 28)
scrollingsprite(223, 100, 10, 1, 1, 28)
scrollingsprite(223, 170, 15, 1, 1, 30)
--large clouds
scrollingsprite(35, 80, 5, 2, 1, 35)
scrollingsprite(35, 180, 9, 2, 1, 38)
scrollingsprite(35, 260, 9, 2, 1, 38)--
scrollingsprite(51, 40, 5, 2, 1, 35)
scrollingsprite(51, 120, 7, 2, 1, 36)--
scrollingsprite(51, 160, 7, 2, 1, 36)
scrollingsprite(51, 240, 9, 2, 1, 38)
--fg clouds
scrollingcircles(-11, 40, 25, 20, 2)
scrollingcircles(-12, 40, 25, 20, 4)
camera(screenshakex/2, screenshakey/2)
--landscape
scrollingcircles(125, 72, 25, 20, 8)
scrollingcircles(126, 72, 25, 20, 2)
--landscape lines
rectfill(0,112,128,128,8)
line(0, 113, 128, 113, 2)
line(0, 116, 128, 116, 2)
line(0, 119, 128, 119, 2)
for i = 1, 32, 1 do
line(((-gt+i*2.5)*80)%128, 111, ((-gt+i*2.5)*80)%128*1.2-12.8, 125, 2)
end
--pine trees
local treex = {10,30,20,50,62,70,80,95,100,120}
for i = 1, 10, 1 do
scrollingsprite(231,treex[i],94+sin(i/5.2323),1,2,72,(i%2==0))
end
--small buildings
scrollingsprite(226,15,98,2,2,80)
scrollingsprite(226,65,97,2,2,80)
scrollingsprite(226,95,96,2,2,80)
scrollingsprite(226,115,97,2,2,80)
--totem poles
scrollingsprite(230,25,99,1,2,84)
scrollingsprite(230,65,100,1,2,83,true)
scrollingsprite(230,85,101,1,2,83)
--dead trees
scrollingsprite(228,30,104,2,2,86)
scrollingsprite(228,75,105,2,2,86,true)
scrollingsprite(228,100,104,2,2,86)
scrollingsprite(228,120,105,2,2,86,true)
--large buildings (front)
scrollingsprite(192,52,94,2,4,90)
scrollingsprite(192,22,91,2,4,90)
scrollingsprite(192,102,90,2,4,90)
scrollingsprite(192,137,92,2,4,90)
camera(screenshakex, screenshakey)
scrollingcircles(150, 100, 30, 32, 8)
scrollingcircles(151, 100, 30, 32, 2)
end
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