resetting project (whatever was in there before was buggy)
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1022d83857
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95e6a93474
1 changed files with 0 additions and 280 deletions
280
main.lua
280
main.lua
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@ -1,280 +0,0 @@
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function int(x)
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return math.ceil(x)
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end
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function love.load()
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p2 = math.pi / 2
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p3 = 3 * math.pi / 2
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fov = 30
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width = 1024
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height = 512
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love.graphics.setBackgroundColor(0, 0, 0, 1)
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love.window.setMode(width, height)
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player = {}
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player["x"] = 96
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player["y"] = 110
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player["size"] = 8
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player["angle"] = math.pi / 2
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player["dx"] = math.cos(player.angle) * 5
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player["dy"] = math.sin(player.angle) * 5
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player["offset"] = 20
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map = {}
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map["x"] = 8
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map["y"] = 8
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map["size"] = 64
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map["map"] = {
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1, 1, 1, 1, 1, 1, 1, 1,
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1, 0, 1, 0, 0, 0, 0, 1,
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1, 0, 1, 0, 0, 0, 0, 1,
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1, 0, 1, 0, 0, 0, 0, 1,
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1, 0, 0, 0, 0, 0, 0, 1,
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1, 0, 0, 0, 0, 1, 0, 1,
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1, 0, 0, 0, 0, 0, 0, 1,
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1, 1, 1, 1, 1, 1, 1, 1,
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}
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end
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function love.update()
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if love.keyboard.isDown("a") then
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player.angle = player.angle - 0.1
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if player.angle < 0 then player.angle = player.angle + 2 * math.pi end
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player.dx = math.cos(player.angle) * 5
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player.dy = math.sin(player.angle) * 5
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end
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if love.keyboard.isDown("d") then
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player.angle = player.angle + 0.1
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if player.angle > 2 * math.pi then player.angle = player.angle - 2 * math.pi end
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player.dx = math.cos(player.angle) * 5
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player.dy = math.sin(player.angle) * 5
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end
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local xo = 0
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if player.dx < 0 then xo = -player.offset else xo = player.offset end
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local yo = 0
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if player.dy < 0 then yo = -player.offset else yo = player.offset end
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local ipx = int(player.x / map.size)
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local ipx_add_xo = int((player.x + xo) / map.size)
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local ipx_sub_xo = int((player.x - xo) / map.size)
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local ipy = int(player.y / map.size)
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local ipy_add_yo = int((player.y + yo) / map.size)
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local ipy_sub_yo = int((player.y - yo) / map.size)
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local pos1 = (ipy - 1)*map.x + ipx_add_xo
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local pos2 = (ipy_add_yo - 1)*map.x + ipx
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if love.keyboard.isDown("w") then
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if map.map[pos1] == 0 then
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player.x = player.x + player.dx
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end
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if map.map[pos2] == 0 then
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player.y = player.y + player.dy
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end
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end
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local pos3 = (ipy - 1)*map.x + ipx_sub_xo
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local pos4 = (ipy_sub_yo - 1)*map.x + ipx
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if love.keyboard.isDown("s") then
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if map.map[pos3] == 0 then
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player.x = player.x - player.dx
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end
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if map.map[pos4] == 0 then
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player.y = player.y - player.dy
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end
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end
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end
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function love.draw()
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-- drawMap()
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-- drawPlayer()
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drawRays3D()
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end
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function drawPlayer()
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love.graphics.setColor(1, 1, 1)
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love.graphics.rectangle("fill",
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player.x - player.size / 2, player.y - player.size / 2,
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player.size, player.size
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)
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love.graphics.line(player.x, player.y, player.x + player.dx * 5, player.y + player.dy * 5)
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end
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function drawMap()
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for y = 1, map.y do
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for x = 1, map.x do
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local color = map.map[(y - 1) * map.x + x]
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love.graphics.setColor(color, color, color)
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local xo = (x - 1) * map.size
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local yo = (y - 1) * map.size
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love.graphics.polygon("fill",
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xo + 1, yo + 1,
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xo + 1, yo + map.size - 1,
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xo + map.size - 1, yo + map.size - 1,
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xo + map.size - 1, yo + 1
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)
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end
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end
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end
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function dist(ax, ay, bx, by, ang)
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return math.sqrt((bx - ax) * (bx - ax) + (by - ay) * (by - ay))
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end
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function drawRays3D()
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local ray = {}
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ray["angle"] = player.angle - math.rad(fov)
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ray["x"] = 0
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ray["y"] = 0
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ray["xo"] = 0
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ray["yo"] = 0
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ray["mx"] = 0
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ray["my"] = 0
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ray["mp"] = 0
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if ray.angle < 0 then
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ray.angle = ray.angle + 2 * math.pi
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end
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if ray.angle > 2 * math.pi then
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ray.angle = ray.angle - 2 * math.pi
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end
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for r = 1, fov * 2 do
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local dof = 0
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local disT = 0
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local disH = 1000000
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local hx = player.x
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local hy = player.y
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local aTan = -1 / math.tan(ray.angle)
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if (ray.angle > math.pi) then
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ray.y = bit.lshift(bit.rshift(player.y, 6), 6) - 0.0001
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ray.x = (player.y - ray.y) * aTan + player.x
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ray.yo = -map.size
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ray.xo = -ray.yo * aTan
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end
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if (ray.angle < math.pi) then
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ray.y = bit.lshift(bit.rshift(player.y, 6), 6) + map.size
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ray.x = (player.y - ray.y) * aTan + player.x
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ray.yo = map.size
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ray.xo = -ray.yo * aTan
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end
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if ray.angle == 0 or ray.angle == math.pi then
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ray.x = player.x
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ray.y = player.y
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dof = 8
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end
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while dof < 8 do
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ray.mx = bit.rshift(ray.x, 6)
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ray.my = bit.rshift(ray.y, 6)
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ray.mp = ray.my * map.x + ray.mx
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if ray.mp > 0 and ray.mp < (map.x * map.y + 1) and map.map[ray.mp + 1] == 1 then
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hx = ray.x
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hy = ray.y
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disH = dist(player.x, player.y, hx, hy, ray.angle)
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dof = 8
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else
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ray.x = ray.x + ray.xo
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ray.y = ray.y + ray.yo
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dof = dof + 1
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end
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end
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dof = 0
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local disV = 1000000
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local vx = player.x
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local vy = player.y
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local nTan = -math.tan(ray.angle)
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if (ray.angle > p2 and ray.angle < p3) then
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ray.x = bit.lshift(bit.rshift(player.x, 6), 6) - 0.0001
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ray.y = (player.x - ray.x) * nTan + player.y
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ray.xo = -map.size
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ray.yo = -ray.xo * nTan
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end
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if (ray.angle < p2 or ray.angle > p3) then
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ray.x = bit.lshift(bit.rshift(player.x, 6), 6) + map.size
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ray.y = (player.x - ray.x) * nTan + player.y
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ray.xo = map.size
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ray.yo = -ray.xo * nTan
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end
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if ray.angle == 0 or ray.angle == math.pi then
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ray.x = player.x
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ray.y = player.y
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dof = 8
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end
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while dof < 8 do
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ray.mx = bit.rshift(ray.x, 6)
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ray.my = bit.rshift(ray.y, 6)
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ray.mp = ray.my * map.x + ray.mx
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if ray.mp > 0 and ray.mp < (map.x * map.y + 1) and map.map[ray.mp + 1] == 1 then
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vx = ray.x
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vy = ray.y
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disV = dist(player.x, player.y, vx, vy, ray.angle)
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dof = 8
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else
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ray.x = ray.x + ray.xo
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ray.y = ray.y + ray.yo
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dof = dof + 1
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end
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end
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if disV < disH then
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ray.x = vx
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ray.y = vy
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disT = disV
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end
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if disH < disV then
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ray.x = hx
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ray.y = hy
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disT = disH
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end
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local ca = player.angle - ray.angle
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if ca < 0 then
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ca = ca + 2 * math.pi
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end
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if ca > 2 * math.pi then
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ca = ca - 2 * math.pi
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end
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disT = disT * math.cos(ca)
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local lineH = int(map.size * height / disT)
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if lineH > height then
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lineH = height
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end
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local lineO = int((height / 2)- (lineH / 2))
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love.graphics.setPointSize(8)
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love.graphics.setColor(1, 1, 1)
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local top = lineH - 1
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for y = 0, top do
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if y == 0 or y == top then
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love.graphics.points(
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r * 8 + (width / 4) , y + lineO
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)
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end
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end
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ray.angle = ray.angle + math.rad(1)
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if ray.angle < 0 then
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ray.angle = ray.angle + 2 * math.pi
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end
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if ray.angle > 2 * math.pi then
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ray.angle = ray.angle - 2 * math.pi
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end
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end
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end
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