cube3d.p8

pico-8 cartridge // http://www.pico-8.com
version 41
__lua__
function _init()
	x1 = {0,0,0}
	x2 = {20,0,0}
	x3 = {0,20,0}
	x4 = {20,20,0}
	x5 = {0,0,20}
	x6 = {20,0,20}
	x7 = {0,20,20}
	x8 = {20,20,20}
	positions = {x1,x2,x3,x4,x5,x6,x7,x8}
	player = {10,0,-10}
	ssize = 128
	angle = 0.125
	base_x = 64
	base_y = 64
end

function _update()
	if(btn(⬆️)) then
		base_y -= 1
	elseif(btn(⬇️)) then
		base_y += 1
	end
	if(btn(⬅️)) then
		x1[1] += 1
		x2[1] += 1
		x5[1] += 1
		x6[1] += 1
	elseif btn(➡️) then
		x1[1] -= 1
		x2[1] -= 1
		x5[1] -= 1
		x6[1] -= 1
	end
end

function _draw()
	cls()
	for i = 1,8 do
		local dx1 = {player[1] - positions[i][1]} 
		//print(dx1[1]*128/ssize)
		local angle1 = asin((positions[i][2]-player[2])/(positions[i][1]-player[1]))
		//print(asin((positions[i][2]-player[2])/(positions[i][1]-player[1])))
		local ps1  =dx1[1]*abs(player[3]-positions[i][3])/40/cos(angle1)
		pset(ps1+base_x,abs(player[2]-positions[i][2])+base_y,7)
		print(i)
		print(abs(player[2]-positions[i][2])+base_y)
	end
	//pset(x2[1]/x2[2]*128/ssize,80-x2[2],7)
	//pset(x3[1]/x3[2]*128/ssize,80-x3[2],7)
	//pset(x4[1]/x4[2]*128/ssize,80-x4[2],7)
	//pset(player[1]+dm,player[2]+80,7)
end

function asin(y)
 return atan2(sqrt(1-y*y),-y)
end
__gfx__
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