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Sep 26th, 2021

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local per = peripheral.wrap("back")
local c = per.canvas()
local pretty = require("cc.pretty")
c.clear()
local points = {
{ {-10,},{-10},{-10}},
{ {10},{-10},{-10}},
{ {10},{10},{-10}},
{ {-10},{10},{-10}},
{ {-10},{-10},{10}},
{ {10},{-10},{10}},
{ {10},{10},{10}},
{ {-10},{10},{10}}
}
local projection = {
{1,0,0},
{0,1,0},
{0,0,1}
}
local function matmul(m1, m2)
if #m1[1] ~= #m2 then
error("Columns m1 must match rows m2",2)
return nil
end
local result = {}
for i = 1, #m1 do
result[i] = {}
for j = 1, #m2[1] do
local sum = 0
for k = 1, #m2 do
sum = sum + (m1[i][k] * m2[k][j])
end
result[i][j] = sum
end
end
return result
end
local angleX = 0
local angleY = 0
local angleZ = 0
local pointIDs = {}
local lineIDs = {}
for k,v in pairs(points) do
pointIDs[k] = c.addDot({v[1][1]+80,v[2][1]+80},0xFF0000FF,3)
end
for i=1,12 do
lineIDs[i] = c.addLine({0,0},{0,0},0x0FFFFFFF,5)
end
local indexcon = 0
local function connect(a,b)
indexcon = indexcon + 1
if not lineIDs[indexcon] then
lineIDs[indexcon] = c.addLine({a[1][1]+80,a[2][1]+80},{b[1][1]+80,b[2][1]+80},0x0FFFFFFF,1)
else
lineIDs[indexcon].setPoint(1,a[1][1]+80,a[2][1]+80)
lineIDs[indexcon].setPoint(2,b[1][1]+80,b[2][1]+80)
end
if indexcon >= 12 then indexcon = 0 end
end
local proj = {}
local rot = 0
while true do
rot = rot + 0.05
local angleY = rot
local rotationZ = {
{math.cos(angleZ),-math.sin(angleZ),0},
{math.sin(angleZ),math.cos(angleZ),0},
{0,0,1}
}
local rotationX = {
{1,0,0},
{0,math.cos(angleX),-math.sin(angleX)},
{0,math.sin(angleX),math.cos(angleX)}
}
local rotationY = {
{math.cos(angleY),0,-math.sin(angleY)},
{0,1,0},
{math.sin(angleY),0,math.cos(angleY)}
}
local index = 1
for k,v in pairs(points) do
local pointData = {v[1],v[2],v[3]}
local rotatedX = matmul(rotationX,pointData)
local rotatedY = matmul(rotationY,rotatedX)
local rotatedZ = matmul(rotationZ,rotatedY)
local final = rotatedY
local distance =-1
local dist = 1 / (distance-final[3][1])
local projection = {
{dist or 1,0,0},
{0,dist or 1,0},
{0,0,dist or 1}
}
pretty.print(pretty.pretty(final))
local projected = matmul(projection,final)
pointIDs[k].setPosition(projected[1][1]+80,projected[2][1]+80)
proj[index] = projected
index = index + 1
end
connect(proj[1],proj[2])
connect(proj[2],proj[3])
connect(proj[3],proj[4])
connect(proj[4],proj[1])
connect(proj[5],proj[6])
connect(proj[6],proj[7])
connect(proj[7],proj[8])
connect(proj[8],proj[5])
connect(proj[1],proj[5])
connect(proj[2],proj[6])
connect(proj[3],proj[7])
connect(proj[4],proj[8])
sleep(0.05)
end

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