-- lofi 3d 4
-- alexthescott
-- 11/2/21 6:09pm
-- In celebration of HEN500K :)
-- based on 3d demo
-- by @noahrosamilia
-- new seed every day of the year
srand(31*stat(81)+stat(82))
p1={7,6,135,10,138,11,139,3,131,12,140,1,129,130,128,0}
p2={7,135,10,9,15,143,142,137,14,136,8,2,130,133,128,0}
p3={7,15,143,142,14,8,136,137,9,10,135,138,11,139,12,140}
p={p1,p2,p3}
c=rnd(p)
pal(c,1)
function draw_shape(s)
for i,l in ipairs(s[2]) do
draw_line(s[1][l[1]],s[1][l[2]],max(1,i%16))
end
end
function draw_line(p1,p2,c)
x0,y0=project(p1)
x1,y1=project(p2)
line(x0,y0,x1,y1,c)
end
function draw_point(p,c)
x,y=project(p)
pset(x,y,c)
end
function project(p)
-- calculate x,y and center it
x=(p[1]-cam[1])*mult/(p[3]-cam[3])+127/2
y=-(p[2]-cam[2])*mult/(p[3]-cam[3])+127/2
return x,y
end
function translate_shape(s,t)
-- copy shape, 0 out points,
-- keep og lines
ns={{},s[2]}
-- add displacement to point
for p in all(s[1])do
add(ns[1],{p[1]+t[1],p[2]+t[2],p[3]+t[3]})
end
return ns
end
function rotate_shape(s,a,r)
-- copy shape, 0 out points
-- keep og lines
ns={{},s[2]}
for p in all(s[1])do
add(ns[1],rotate_point(p,a,r))
end
return ns
end
function rotate_point(p,a,r)
-- figure axis we're rotating
if a==1 then
x,y,z=3,2,1
elseif a==2 then
x,y,z=1,3,2
elseif a==3 then
x,y,z=1,2,3
end
_x=cos(r)*p[x]-sin(r)*p[y]
_y=sin(r)*p[x]+cos(r)*p[y]
np={}
np[x]=_x
np[y]=_y
np[z]=p[z]
return np
end
function burn()
loop_count=512
if(burn_type) loop_count=256
for p=0,loop_count do
x=rnd(128)\1
y=rnd(128)\1
pc=pget(x,y)
if pc!=0 then
pset(x,y,pc-1)
if burn_type and rnd()<0.5 then
pset(x-1,y,pc-1)
pset(x+1,y,pc-1)
pset(x,y-1,pc-1)
pset(x,y+1,pc-1)
end
else
pset(x,y,0)
end
end
end
function forward()
v=c[1]
del(c,v)
c[#c+1]=v
pal(c,1)
end
function backward()
v=c[#c]
del(c,v)
for i=#c+1,1,-1 do
if i!=1 then
c[i]=c[i-1]
else
c[i]=v
end
end
pal(c,1)
end
function centr_circ(r,c)
for x=0,128 do
y=sqrt(r^2-(x-64)^2)+64
line(x,128,x,y,c)
line(x,0,x,128-y,c)
end
end
function build_plane(shp)
for x=-1,1,0.25 do
for y=-1,1,0.25 do
add(shp[1],{x,y,0})
end
end
for x=-1,1,0.25 do
for z=-1,1,0.25 do
add(shp[1],{x,0,z})
end
end
for y=-1,1,0.25 do
for z=-1,1,0.25 do
add(shp[1],{0,y,z})
end
end
for p=1,#shp[1]-1 do
if p%9!=0 then
add(shp[2],{p,p+1})
end
end
end
function build_circ(shp)
p=32
z=0
for i=0,p do
x=cos(i/p)*1.1
y=sin(i/p)*1.1
add(shp[1],{x,y,z})
end
for p=1,#shp[1]-1 do
if p%9!=0 then
add(shp[2],{p,p+1})
end
end
end
for i=1,rnd()*16 do
forward()
end
for p=1,24 do
po={p,p+1}
end
cam={0,0,-2.1}
mult=64
shape={{},{}}
build_plane(shape)
o1={{},{}}
build_circ(o1)
o1=rotate_shape(o1,2,0.25)
o2={{},{}}
build_circ(o2)
o2=rotate_shape(o2,2,0.25)
o2=rotate_shape(o2,3,0.25)
o3={{},{}}
build_circ(o3)
dir=(1+rnd()*3)\1
burn_type=rnd()<0.5
show_circ=rnd()<0.5
fc=0
month=stat(81)
day=stat(82)
cls()
_set_fps(60)
::♥::
if t()<2 then
print("lofi 3d 4",46,59,1)
print(month.."/"..day,55,65)
else
if btn(❎) and btn(🅾️) then
cls()
else
burn()
end
if btn(⬅️) then cam[1] -= 0.01 end
if btn(➡️) then cam[1] += 0.01 end
if btn(⬆️) then cam[2] += 0.01 end
if btn(⬇️) then cam[2] -= 0.01 end
if btn(❎) then cam[3] -= 0.01 end
if btn(🅾️) then cam[3] += 0.01 end
if btn(⬆️) and btn(⬇️) or
btn(➡️) and btn(⬅️) then
print("cam.x="..cam[1],0,0,2)
print("cam.y="..cam[2],0,6,2)
print("cam.z="..cam[3],0,12,2)
end
if fc%500==0 then
fc=0
dir=(1+rnd()*3)\1
shape={{},{}}
build_plane(shape)
o1={{},{}}
build_circ(o1)
o1=rotate_shape(o1,2,0.25)
o2={{},{}}
build_circ(o2)
o2=rotate_shape(o2,2,0.25)
o2=rotate_shape(o2,3,0.25)
o3={{},{}}
build_circ(o3)
end
if show_circ then
draw_shape(o1,1)
o1=rotate_shape(o1,dir,0.002)
draw_shape(o2,1)
o2=rotate_shape(o2,dir,0.002)
draw_shape(o3,1)
o3=rotate_shape(o3,dir,0.002)
end
draw_shape(shape,1)
shape=rotate_shape(shape,dir,0.002)
fc+=1
end
flip()
goto ♥
