-- Example: Complex Example
local LightWorld = require "lib"

function initScene()
	-- physic world
	physicWorld = love.physics.newWorld(0, 9.81 * 64, true)
	wall1 = {}
	wall1.body = love.physics.newBody(physicWorld, 400, 605, "static")
	wall1.shape = love.physics.newRectangleShape(0, 0, 800, 10)
	wall1.fixture = love.physics.newFixture(wall1.body, wall1.shape)

	wall2 = {}
	wall2.body = love.physics.newBody(physicWorld, -5, 300, "static")
	wall2.shape = love.physics.newRectangleShape(0, 0, 10, 600)
	wall2.fixture = love.physics.newFixture(wall2.body, wall2.shape)

	wall3 = {}
	wall3.body = love.physics.newBody(physicWorld, 805, 300, "static")
	wall3.shape = love.physics.newRectangleShape(0, 0, 10, 600)
	wall3.fixture = love.physics.newFixture(wall3.body, wall3.shape)

	wall4 = {}
	wall4.body = love.physics.newBody(physicWorld, 400, -5, "static")
	wall4.shape = love.physics.newRectangleShape(0, 0, 800, 10)
	wall4.fixture = love.physics.newFixture(wall4.body, wall4.shape)

	phyCnt = 0
	phyLight = {}
	phyBody = {}
	phyShape = {}
	phyFixture = {}
end

function love.load()
  love.graphics.setBackgroundColor(0, 0, 0)
	love.graphics.setDefaultFilter("nearest", "nearest")

	-- load image font
	font = love.graphics.newImageFont("examples/gfx/font.png", " abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.,!?-+/():;%&`'*#=[]\"")
	love.graphics.setFont(font)

	-- set background
	quadScreen = love.graphics.newQuad(0, 0, love.window.getWidth() + 32, love.window.getHeight() + 24, 32, 24)
	imgFloor = love.graphics.newImage("examples/gfx/floor.png")
	imgFloor:setWrap("repeat", "repeat")

	-- load image examples
	circle = love.graphics.newImage("examples/gfx/circle.png")
	circle_normal = love.graphics.newImage("examples/gfx/circle_normal.png")
	cone = love.graphics.newImage("examples/gfx/cone.png")
	cone_large = love.graphics.newImage("examples/gfx/cone_large.png")
	cone_large_normal = love.graphics.newImage("examples/gfx/cone_large_normal.png")
	cone_normal = love.graphics.newImage("examples/gfx/cone_normal.png")
	chest = love.graphics.newImage("examples/gfx/chest.png")
	chest_normal = love.graphics.newImage("examples/gfx/chest_normal.png")
	machine = love.graphics.newImage("examples/gfx/machine.png")
	machine_normal = love.graphics.newImage("examples/gfx/machine_normal.png")
	machine_glow = love.graphics.newImage("examples/gfx/machine_glow.png")
	machine2 = love.graphics.newImage("examples/gfx/machine2.png")
	machine2_normal = love.graphics.newImage("examples/gfx/machine2_normal.png")
	machine2_glow = love.graphics.newImage("examples/gfx/machine2_glow.png")
	blopp = love.graphics.newImage("examples/gfx/blopp.png")
	tile = love.graphics.newImage("examples/gfx/tile.png")
	tile_normal = love.graphics.newImage("examples/gfx/tile_normal.png")
	tile_glow = love.graphics.newImage("examples/gfx/tile_glow.png")
	refraction_normal = love.graphics.newImage("examples/gfx/refraction_normal.png")
	water = love.graphics.newImage("examples/gfx/water.png")
	led = love.graphics.newImage("examples/gfx/led.png")
	led2 = love.graphics.newImage("examples/gfx/led2.png")
	led3 = love.graphics.newImage("examples/gfx/led3.png")
	led_normal = love.graphics.newImage("examples/gfx/led_normal.png")
	led_glow = love.graphics.newImage("examples/gfx/led_glow.png")
	led_glow2 = love.graphics.newImage("examples/gfx/led_glow2.png")
	led_glow3 = love.graphics.newImage("examples/gfx/led_glow3.png")
	ape = love.graphics.newImage("examples/gfx/ape.png")
	ape_normal = love.graphics.newImage("examples/gfx/ape_normal.png")
	ape_glow = love.graphics.newImage("examples/gfx/ape_glow.png")
	imgLight = love.graphics.newImage("examples/gfx/light.png")

	-- materials
	material = {}

	local files = love.filesystem.getDirectoryItems("examples/gfx/sphere")
	for i, file in ipairs(files) do
		material[i] = love.graphics.newImage("examples/gfx/sphere/" .. file)
	end

	-- light world
	lightRange = 400
	lightSmooth = 1.0

	lightWorld = LightWorld({
    ambient = {15,15,15},
    refractionStrength = 16.0,
    reflectionVisibility = 0.75,
    drawBackground = drawBackground,
    drawForeground = drawForeground
  })

	mouseLight = lightWorld:newLight(0, 0, 255, 191, 127, lightRange)
	mouseLight:setGlowStrength(0.3)
	mouseLight:setSmooth(lightSmooth)
	mouseLight.z = 63
	lightDirection = 0.0
	colorAberration = 0.0

	-- init physic world
	initScene()

	helpOn = false
	physicOn = false
	lightOn = true
	gravityOn = 1
	shadowBlur = 2.0
	bloomOn = 0.0
	textureOn = true
	normalOn = false
	glowBlur = 1.0
	effectOn = 0.0

	offsetX = 0.0
	offsetY = 0.0
  scale = 1.0
	offsetOldX = 0.0
	offsetOldY = 0.0
	offsetChanged = false

	tileX = 0
	tileY = 0
end

function love.update(dt)
	love.window.setTitle("Light vs. Shadow Engine (FPS:" .. love.timer.getFPS() .. ")")

  mx, my = (love.mouse.getX() - offsetX)/scale, (love.mouse.getY() - offsetY)/scale

	mouseLight:setPosition(mx, my, 1 + (math.sin(lightDirection) + 1.0))

	lightDirection = lightDirection + dt
	colorAberration = math.max(0.0, colorAberration - dt * 10.0)

	if love.keyboard.isDown("w") then
		for i = 1, phyCnt do
			if phyBody[i] then
				phyBody[i]:applyForce(0, -2000)
			end
		end
	elseif love.keyboard.isDown("s") then
		for i = 1, phyCnt do
			if phyBody[i] then
				phyBody[i]:applyForce(0, 2000)
			end
		end
	end

	if love.keyboard.isDown("a") then
		for i = 1, phyCnt do
			if phyBody[i] then
				phyBody[i]:applyForce(-2000, 0)
			end
		end
	elseif love.keyboard.isDown("d") then
		for i = 1, phyCnt do
			if phyBody[i] then
				phyBody[i]:applyForce(2000, 0)
			end
		end
	end

	if love.keyboard.isDown("up") then
		offsetY = offsetY + dt * 200
	elseif love.keyboard.isDown("down") then
		offsetY = offsetY - dt * 200
	end

	if love.keyboard.isDown("left") then
		offsetX = offsetX + dt * 200
	elseif love.keyboard.isDown("right") then
		offsetX = offsetX - dt * 200
	end

	if love.keyboard.isDown("-") then
		scale = scale - 0.01
	elseif love.keyboard.isDown("=") then
		scale = scale + 0.01
	end

  for i = 1, lightWorld:getLightCount() do
		lightWorld:getLight(i):setDirection(lightDirection)
  end

	tileX = tileX + dt * 32.0
	tileY = tileY + dt * 8.0

  for i = 1, phyCnt do
		if phyBody[i] and (phyBody[i]:isAwake() or offsetChanged) then
			if phyLight[i]:getType() == "polygon" then
				phyLight[i]:setPoints(phyBody[i]:getWorldPoints(phyShape[i]:getPoints()))
			elseif phyLight[i]:getType() == "circle" then
				phyLight[i]:setPosition(phyBody[i]:getPosition())
			elseif phyLight[i]:getType() == "image" then
				phyLight[i]:setPosition(phyBody[i]:getPosition())
			elseif phyLight[i]:getType() == "refraction" then
				--phyLight[i]:setPosition(phyBody[i]:getPosition())
			end
		end
		if phyLight[i]:getType() == "refraction" then
			--if math.mod(i, 2) == 0  then
				phyLight[i]:setNormalTileOffset(tileX, tileY)
			--end
		end
  end

	if physicOn then
		physicWorld:update(dt)
	end

	-- draw shader
	if colorAberration > 0.0 then
		-- vert / horz blur
		lightWorld.post_shader:addEffect("blur", 2.0, 2.0)
		lightWorld.post_shader:addEffect("chromatic_aberration", math.sin(lightDirection * 10.0) * colorAberration, math.cos(lightDirection * 10.0) * colorAberration, math.cos(lightDirection * 10.0) * colorAberration, math.sin(lightDirection * 10.0) * -colorAberration, math.sin(lightDirection * 10.0) * colorAberration, math.cos(lightDirection * 10.0) * -colorAberration)
  else
		lightWorld.post_shader:removeEffect("blur")
		lightWorld.post_shader:removeEffect("chromatic_aberration")
	end

	if bloomOn > 0.0 then
		-- blur, strength
		lightWorld.post_shader:addEffect("bloom", 2.0, bloomOn)
  else
		lightWorld.post_shader:removeEffect("bloom")
	end
end

function love.draw()
	-- set shader buffer
  love.graphics.push()
    love.graphics.translate(offsetX, offsetY)
    love.graphics.scale(scale)
    lightWorld:draw(offsetX,offsetY, scale)
  love.graphics.pop()

	love.graphics.draw(imgLight, mx - 5, (my - 5) - (16.0 + (math.sin(lightDirection) + 1.0) * 64.0))

	-- draw help
	if helpOn then
		love.graphics.setBlendMode("alpha")
		love.graphics.setColor(0, 0, 0, 191)
		love.graphics.rectangle("fill", 0, 0, love.graphics.getWidth(), 44)
		love.graphics.rectangle("fill", 0, love.graphics.getHeight() - 68, 240, 68)
		love.graphics.rectangle("fill", love.graphics.getWidth() - 244, love.graphics.getHeight() - 84, 244, 84)
		love.graphics.setColor(0, 255, 0)
		love.graphics.print("F1: Help (on)", 4 + 152 * 0, 4)
		if physicOn then
			love.graphics.setColor(0, 255, 0)
			love.graphics.print("F2: Physic (on)", 4 + 152 * 1, 4)
		else
			love.graphics.setColor(255, 0, 0)
			love.graphics.print("F2: Physic (off)", 4 + 152 * 1, 4)
		end
		if lightOn then
			love.graphics.setColor(0, 255, 0)
			love.graphics.print("F3: Light (on)", 4 + 152 * 2, 4)
		else
			love.graphics.setColor(255, 0, 0)
			love.graphics.print("F3: Light (off)", 4 + 152 * 2, 4)
		end
		if gravityOn == 1.0 then
			love.graphics.setColor(0, 255, 0)
			love.graphics.print("F4: Gravity (on)", 4 + 152 * 3, 4)
		else
			love.graphics.setColor(255, 0, 0)
			love.graphics.print("F4: Gravity (off)", 4 + 152 * 3, 4)
		end
		if shadowBlur >= 1.0 then
			love.graphics.setColor(0, 255, 0)
			love.graphics.print("F5: Shadowblur (" .. shadowBlur .. ")", 4 + 152 * 4, 4)
		else
			love.graphics.setColor(255, 0, 0)
			love.graphics.print("F5: Shadowblur (off)", 4 + 152 * 4, 4)
		end
		if bloomOn > 0.0 then
			love.graphics.setColor(0, 255, 0)
			love.graphics.print("F6: Bloom (" .. (bloomOn * 4) .. ")", 4 + 152 * 0, 4 + 20 * 1)
		else
			love.graphics.setColor(255, 0, 0)
			love.graphics.print("F6: Bloom (off)", 4 + 152 * 0, 4 + 20 * 1)
		end
		if textureOn then
			love.graphics.setColor(0, 255, 0)
			love.graphics.print("F7: Texture (on)", 4 + 152 * 1, 4 + 20 * 1)
		else
			love.graphics.setColor(255, 0, 0)
			love.graphics.print("F7: Texture (off)", 4 + 152 * 1, 4 + 20 * 1)
		end
		if normalOn then
			love.graphics.setColor(0, 255, 0)
			love.graphics.print("F8: Normal (on)", 4 + 152 * 2, 4 + 20 * 1)
		else
			love.graphics.setColor(255, 0, 0)
			love.graphics.print("F8: Normal (off)", 4 + 152 * 2, 4 + 20 * 1)
		end
		if glowBlur >= 1.0 then
			love.graphics.setColor(0, 255, 0)
			love.graphics.print("F9: Glow Blur (" .. glowBlur .. ")", 4 + 152 * 3, 4 + 20 * 1)
		else
			love.graphics.setColor(255, 0, 0)
			love.graphics.print("F9: Glow Blur (off)", 4 + 152 * 3, 4 + 20 * 1)
		end
		if effectOn >= 1.0 then
			love.graphics.setColor(0, 255, 0)
			love.graphics.print("F10: Effects (" .. effectOn .. ")", 4 + 152 * 4, 4 + 20 * 1)
		else
			love.graphics.setColor(255, 0, 0)
			love.graphics.print("F10: Effects (off)", 4 + 152 * 4, 4 + 20 * 1)
		end
		love.graphics.setColor(255, 0, 255)
		love.graphics.print("F11: Clear obj.", 4 + 152 * 4, 4 + 20 * 2)
		love.graphics.print("F12: Clear lights", 4 + 152 * 4, 4 + 20 * 3)
		love.graphics.setColor(0, 127, 255)
		love.graphics.print("WASD Keys: Move objects", 4, love.graphics.getHeight() - 20 * 3)
		love.graphics.print("Arrow Keys: Move map", 4, love.graphics.getHeight() - 20 * 2)
		love.graphics.print("0-9 Keys: Add object", 4, love.graphics.getHeight() - 20 * 1)
		love.graphics.setColor(255, 127, 0)
		love.graphics.print("M.left: Add cube", love.graphics.getWidth() - 240, love.graphics.getHeight() - 20 * 4)
		love.graphics.print("M.middle: Add light", love.graphics.getWidth() - 240, love.graphics.getHeight() - 20 * 3)
		love.graphics.print("M.right: Add circle", love.graphics.getWidth() - 240, love.graphics.getHeight() - 20 * 2)
		love.graphics.print("M.scroll: Change smooth", love.graphics.getWidth() - 240, love.graphics.getHeight() - 20 * 1)
		love.graphics.setColor(255, 127, 0)
	else
		love.graphics.setColor(255, 255, 255, 191)
		love.graphics.print("F1: Help", 4, 4)
	end
end

function drawBackground(l,t,w,h)
	love.graphics.setBlendMode("alpha")
	if normalOn then
		love.graphics.setColor(127, 127, 255)
		love.graphics.rectangle("fill", 0, 0, love.graphics.getWidth(), love.graphics.getHeight())
	else
		love.graphics.setColor(255, 255, 255)
		if textureOn then
			love.graphics.draw(imgFloor, quadScreen, 0,0)
		else
			love.graphics.rectangle("fill", 0, 0, love.graphics.getWidth(), love.graphics.getHeight())
		end
	end

	for i = 1, phyCnt do
		if phyLight[i]:getType() == "refraction" then
			if not normalOn then
        love.graphics.setBlendMode("alpha")
        love.graphics.setColor(255, 255, 255, 191)
        love.graphics.draw(water, phyLight[i].x - phyLight[i].ox, phyLight[i].y - phyLight[i].oy)
			end
		end
	end
end

function drawForeground(l,t,w,h)
	love.graphics.setBlendMode("alpha")
	for i = 1, phyCnt do
		if phyLight[i]:getType() == "polygon" then
      math.randomseed(i)
      love.graphics.setColor(math.random(0, 255), math.random(0, 255), math.random(0, 255))
			love.graphics.polygon("fill", phyLight[i]:getPoints())
		elseif phyLight[i]:getType() == "circle" then
      math.randomseed(i)
      love.graphics.setColor(math.random(0, 255), math.random(0, 255), math.random(0, 255))
      local cx, cy = phyLight[i]:getPosition()
			love.graphics.circle("fill", cx, cy, phyLight[i]:getRadius())
    elseif phyLight[i]:getType() == "image" then
			if normalOn and phyLight[i].normal then
				love.graphics.setColor(255, 255, 255)
				love.graphics.draw(phyLight[i].normal, phyLight[i].x - phyLight[i].nx, phyLight[i].y - phyLight[i].ny)
			elseif not phyLight[i].material then
				math.randomseed(i)
				love.graphics.setColor(math.random(127, 255), math.random(127, 255), math.random(127, 255))
				love.graphics.draw(phyLight[i].img, phyLight[i].x - phyLight[i].ix, phyLight[i].y - phyLight[i].iy)
			end
		end
	end
end

function love.mousepressed(x, y, c)
	if c == "m" then
		-- add light
		local r = lightWorld:getLightCount() % 3
		local light

		if r == 0 then
			light = lightWorld:newLight(x, y, 31, 127, 63, lightRange)
		elseif r == 1 then
			light = lightWorld:newLight(x, y, 127, 63, 31, lightRange)
		else
			light = lightWorld:newLight(x, y, 31, 63, 127, lightRange)
		end
		light:setSmooth(lightSmooth)
		light:setGlowStrength(0.3)
	elseif c == "l" then
		-- add rectangle
		math.randomseed(love.timer.getTime())
		phyCnt = phyCnt + 1
		phyLight[phyCnt] = lightWorld:newPolygon({
     x, y,
     x+16, y,
     x+16, y+16,
     x, y+16
    })
		phyBody[phyCnt] = love.physics.newBody(physicWorld, x, y, "dynamic")
		phyShape[phyCnt] = love.physics.newRectangleShape(0, 0, math.random(32, 64), math.random(32, 64))
		phyFixture[phyCnt] = love.physics.newFixture(phyBody[phyCnt], phyShape[phyCnt])
		phyFixture[phyCnt]:setRestitution(0.5)
	elseif c == "r" then
		-- add circle
		math.randomseed(love.timer.getTime())
		cRadius = math.random(8, 32)
		phyCnt = phyCnt + 1
		phyLight[phyCnt] = lightWorld:newCircle(x, y, cRadius)
		phyBody[phyCnt] = love.physics.newBody(physicWorld, x, y, "dynamic")
		phyShape[phyCnt] = love.physics.newCircleShape(0, 0, cRadius)
		phyFixture[phyCnt] = love.physics.newFixture(phyBody[phyCnt], phyShape[phyCnt])
		phyFixture[phyCnt]:setRestitution(0.5)
	elseif c == "wu" then
		if lightSmooth < 4.0 then
			lightSmooth = lightSmooth * 1.1
			mouseLight:setSmooth(lightSmooth)
		end
	elseif c == "wd" then
		if lightSmooth > 0.5 then
			lightSmooth = lightSmooth / 1.1
			mouseLight:setSmooth(lightSmooth)
		end
	end
end

function love.keypressed(k, u)
	-- debug options
	if k == "f1" then
		helpOn = not helpOn
	elseif k == "f2" then
		physicOn = not physicOn
	elseif k == "f3" then
		lightOn = not lightOn
	elseif k == "f4" then
		gravityOn = 1 - gravityOn
		physicWorld:setGravity(0, gravityOn * 9.81 * 64)
	elseif k == "f5" then
		shadowBlur = math.max(1, shadowBlur * 2.0)
		if shadowBlur > 8.0 then
			shadowBlur = 0.0
		end
		lightWorld:setBlur(shadowBlur)
	elseif k == "f6" or k == "b" then
		bloomOn = math.max(0.25, bloomOn * 2.0)
		if bloomOn > 1.0 then
			bloomOn = 0.0
		end
	elseif k == "f7" then
		textureOn = not textureOn
	elseif k == "f8" then
		normalOn = not normalOn
	elseif k == "f9" then
		glowBlur = glowBlur + 1.0
		if glowBlur > 8.0 then
			glowBlur = 0.0
		end
		lightWorld:setGlowStrength(glowBlur)
	elseif k == "f10" then
		effectOn = effectOn + 1.0
		if effectOn > 4.0 then
			effectOn = 0.0
		end

    if effectOn == 1.0 then
      lightWorld.post_shader:addEffect("four_colors", {15, 56, 15}, {48, 98, 48}, {139, 172, 15}, {155, 188, 15})
      --lightWorld.post_shader:addEffect("4colors", {108, 108, 78}, {142, 139, 87}, {195, 196, 165}, {227, 230, 201})
    else
      lightWorld.post_shader:removeEffect("four_colors")
    end

    if effectOn == 2.0 then
      lightWorld.post_shader:addEffect("monochrome")
    else
      lightWorld.post_shader:removeEffect("monochrome")
    end

    if effectOn == 3.0 then
      lightWorld.post_shader:addEffect("scanlines")
    else
      lightWorld.post_shader:removeEffect("scanlines")
    end

    if effectOn == 4.0 then
      lightWorld.post_shader:addEffect("tilt_shift", 4.0)
    else
      lightWorld.post_shader:removeEffect("tilt_shift")
    end

	elseif k == "f11" then
		physicWorld:destroy()
		lightWorld:clearBodys()
		initScene()
	elseif k == "f12" then
		lightWorld:clearLights()
		mouseLight = lightWorld:newLight(0, 0, 255, 191, 127, lightRange)
		mouseLight:setGlowStrength(0.3)
		mouseLight:setSmooth(lightSmooth)
	elseif k == "1" then
		-- add image
		phyCnt = phyCnt + 1
		phyLight[phyCnt] = lightWorld:newImage(circle, mx, my)
		phyLight[phyCnt]:setNormalMap(circle_normal)
		phyLight[phyCnt]:setShadowType("circle", 16)
		phyBody[phyCnt] = love.physics.newBody(physicWorld, mx, my, "dynamic")
		phyShape[phyCnt] = love.physics.newRectangleShape(0, 0, 32, 32)
		phyFixture[phyCnt] = love.physics.newFixture(phyBody[phyCnt], phyShape[phyCnt])
		phyFixture[phyCnt]:setRestitution(0.5)
	elseif k == "2" then
		local r = lightWorld:getBodyCount() % 2
		if r == 0 then
			-- add image
			phyCnt = phyCnt + 1
			phyLight[phyCnt] = lightWorld:newImage(cone, mx, my, 24, 12, 12, 16)
			phyLight[phyCnt]:setNormalMap(cone_normal)
			phyLight[phyCnt]:setShadowType("circle", 12)
			phyBody[phyCnt] = love.physics.newBody(physicWorld, mx, my, "dynamic")
			phyShape[phyCnt] = love.physics.newRectangleShape(0, 0, 24, 32)
			phyFixture[phyCnt] = love.physics.newFixture(phyBody[phyCnt], phyShape[phyCnt])
			phyFixture[phyCnt]:setRestitution(0.5)
		elseif r == 1 then
			-- add image
			phyCnt = phyCnt + 1
			phyLight[phyCnt] = lightWorld:newImage(chest, mx, my, 32, 24, 16, 0)
			phyLight[phyCnt]:setNormalMap(chest_normal)
			phyBody[phyCnt] = love.physics.newBody(physicWorld, mx, my, "dynamic")
			phyShape[phyCnt] = love.physics.newRectangleShape(0, 0, 32, 24)
			phyFixture[phyCnt] = love.physics.newFixture(phyBody[phyCnt], phyShape[phyCnt])
			phyFixture[phyCnt]:setRestitution(0.5)
		end
	elseif k == "3" then
		-- add image
		local r = lightWorld:getBodyCount() % #material
		phyCnt = phyCnt + 1
		phyLight[phyCnt] = lightWorld:newImage(ape, mx, my, 160, 128, 80, 64)
		phyLight[phyCnt]:setNormalMap(ape_normal)
		if r == 3 then
			phyLight[phyCnt]:setGlowMap(ape_glow)
		end
		phyLight[phyCnt]:setMaterial(material[r + 1])
		phyBody[phyCnt] = love.physics.newBody(physicWorld, mx, my, "dynamic")
		phyShape[phyCnt] = love.physics.newRectangleShape(0, 0, 32, 24)
		phyFixture[phyCnt] = love.physics.newFixture(phyBody[phyCnt], phyShape[phyCnt])
		phyFixture[phyCnt]:setRestitution(0.5)
		phyLight[phyCnt]:setShadowType("image", 0, -16, 0.0)
	elseif k == "4" then
		-- add glow image
		local r = lightWorld:getBodyCount() % 5
		if r == 0 then
			phyCnt = phyCnt + 1
			phyLight[phyCnt] = lightWorld:newImage(machine, mx, my, 32, 24, 16, 0)
			phyLight[phyCnt]:setNormalMap(machine_normal)
			phyLight[phyCnt]:setGlowMap(machine_glow)
			phyBody[phyCnt] = love.physics.newBody(physicWorld, mx, my, "dynamic")
			phyShape[phyCnt] = love.physics.newRectangleShape(0, 0, 32, 24)
			phyFixture[phyCnt] = love.physics.newFixture(phyBody[phyCnt], phyShape[phyCnt])
			phyFixture[phyCnt]:setRestitution(0.5)
		elseif r == 1 then
			phyCnt = phyCnt + 1
			phyLight[phyCnt] = lightWorld:newImage(machine2, mx, my, 24, 12, 12, -4)
			phyLight[phyCnt]:setNormalMap(machine2_normal)
			phyLight[phyCnt]:setGlowMap(machine2_glow)
			phyBody[phyCnt] = love.physics.newBody(physicWorld, mx, my, "dynamic")
			phyShape[phyCnt] = love.physics.newRectangleShape(0, 0, 24, 32)
			phyFixture[phyCnt] = love.physics.newFixture(phyBody[phyCnt], phyShape[phyCnt])
			phyFixture[phyCnt]:setRestitution(0.5)
		elseif r == 2 then
			phyCnt = phyCnt + 1
			phyLight[phyCnt] = lightWorld:newImage(led, mx, my, 32, 6, 16, -8)
			phyLight[phyCnt]:setNormalMap(led_normal)
			phyLight[phyCnt]:setGlowMap(led_glow)
			phyBody[phyCnt] = love.physics.newBody(physicWorld, mx, my, "dynamic")
			phyShape[phyCnt] = love.physics.newRectangleShape(0, 0, 32, 6)
			phyFixture[phyCnt] = love.physics.newFixture(phyBody[phyCnt], phyShape[phyCnt])
			phyFixture[phyCnt]:setRestitution(0.5)
		elseif r == 3 then
			phyCnt = phyCnt + 1
			phyLight[phyCnt] = lightWorld:newImage(led2, mx, my, 32, 6, 16, -8)
			phyLight[phyCnt]:setNormalMap(led_normal)
			phyLight[phyCnt]:setGlowMap(led_glow2)
			phyBody[phyCnt] = love.physics.newBody(physicWorld, mx, my, "dynamic")
			phyShape[phyCnt] = love.physics.newRectangleShape(0, 0, 32, 6)
			phyFixture[phyCnt] = love.physics.newFixture(phyBody[phyCnt], phyShape[phyCnt])
			phyFixture[phyCnt]:setRestitution(0.5)
		elseif r == 4 then
			phyCnt = phyCnt + 1
			phyLight[phyCnt] = lightWorld:newImage(led3, mx, my, 32, 6, 16, -8)
			phyLight[phyCnt]:setNormalMap(led_normal)
			phyLight[phyCnt]:setGlowMap(led_glow3)
			phyBody[phyCnt] = love.physics.newBody(physicWorld, mx, my, "dynamic")
			phyShape[phyCnt] = love.physics.newRectangleShape(0, 0, 32, 6)
			phyFixture[phyCnt] = love.physics.newFixture(phyBody[phyCnt], phyShape[phyCnt])
			phyFixture[phyCnt]:setRestitution(0.5)
		end
	elseif k == "5" then
		-- add image
		phyCnt = phyCnt + 1
		phyLight[phyCnt] = lightWorld:newImage(cone_large, mx, my, 24, 128, 12, 64)
		phyLight[phyCnt]:setNormalMap(cone_large_normal)
		phyLight[phyCnt]:setShadowType("image", 0, -6, 0.0)
		phyBody[phyCnt] = love.physics.newBody(physicWorld, mx, my, "dynamic")
		phyShape[phyCnt] = love.physics.newRectangleShape(0, 0, 24, 32)
		phyFixture[phyCnt] = love.physics.newFixture(phyBody[phyCnt], phyShape[phyCnt])
		phyFixture[phyCnt]:setRestitution(0.5)
	elseif k == "6" then
		-- add image
		phyCnt = phyCnt + 1
		phyLight[phyCnt] = lightWorld:newImage(blopp, mx, my, 42, 16, 21, 0)
		phyLight[phyCnt]:generateNormalMapGradient("gradient", "gradient")
		phyLight[phyCnt]:setAlpha(0.5)
		phyBody[phyCnt] = love.physics.newBody(physicWorld, mx, my, "dynamic")
		phyShape[phyCnt] = love.physics.newRectangleShape(0, 0, 42, 29)
		phyFixture[phyCnt] = love.physics.newFixture(phyBody[phyCnt], phyShape[phyCnt])
		phyFixture[phyCnt]:setRestitution(0.5)
	elseif k == "7" then
		-- add image
		phyCnt = phyCnt + 1
		phyLight[phyCnt] = lightWorld:newImage(tile, mx, my)
		phyLight[phyCnt]:setHeightMap(tile_normal, 2.0)
		phyLight[phyCnt]:setGlowMap(tile_glow)
		phyLight[phyCnt]:setShadow(false)
		phyLight[phyCnt].reflective = false
		phyBody[phyCnt] = love.physics.newBody(physicWorld, mx, my, "dynamic")
		phyShape[phyCnt] = love.physics.newRectangleShape(0, 0, 64, 64)
		phyFixture[phyCnt] = love.physics.newFixture(phyBody[phyCnt], phyShape[phyCnt])
		phyFixture[phyCnt]:setRestitution(0.5)
	elseif k == "8" then
		-- add rectangle
		phyCnt = phyCnt + 1
		phyLight[phyCnt] = lightWorld:newPolygon()
		phyLight[phyCnt]:setAlpha(0.5)
		phyLight[phyCnt]:setGlowStrength(1.0)
		phyBody[phyCnt] = love.physics.newBody(physicWorld, mx, my, "dynamic")
		math.randomseed(love.timer.getTime())
		phyShape[phyCnt] = love.physics.newRectangleShape(0, 0, math.random(32, 64), math.random(32, 64))
		phyFixture[phyCnt] = love.physics.newFixture(phyBody[phyCnt], phyShape[phyCnt])
		phyFixture[phyCnt]:setRestitution(0.5)
		math.randomseed(phyCnt)
		phyLight[phyCnt]:setGlowColor(math.random(0, 255), math.random(0, 255), math.random(0, 255))
		math.randomseed(phyCnt)
		phyLight[phyCnt]:setColor(math.random(0, 255), math.random(0, 255), math.random(0, 255))
	elseif k == "9" then
		-- add circle
		math.randomseed(love.timer.getTime())
		cRadius = math.random(8, 32)
		phyCnt = phyCnt + 1
		phyLight[phyCnt] = lightWorld:newCircle(mx, my, cRadius)
		phyLight[phyCnt]:setAlpha(0.5)
		phyLight[phyCnt]:setGlowStrength(1.0)
		math.randomseed(phyCnt)
		phyLight[phyCnt]:setGlowColor(math.random(0, 255), math.random(0, 255), math.random(0, 255))
		math.randomseed(phyCnt)
		phyLight[phyCnt]:setColor(math.random(0, 255), math.random(0, 255), math.random(0, 255))
		phyBody[phyCnt] = love.physics.newBody(physicWorld, mx, my, "dynamic")
		phyShape[phyCnt] = love.physics.newCircleShape(0, 0, cRadius)
		phyFixture[phyCnt] = love.physics.newFixture(phyBody[phyCnt], phyShape[phyCnt])
		phyFixture[phyCnt]:setRestitution(0.5)
	elseif k == "0" then
		phyCnt = phyCnt + 1
		phyLight[phyCnt] = lightWorld:newRefraction(refraction_normal, mx, my)
		phyLight[phyCnt]:setReflection(true)
	elseif k == "l" then
		-- add light
		local r = lightWorld:getLightCount() % 3
		local light

		if r == 0 then
			light = lightWorld:newLight(mx, my, 31, 127, 63, lightRange)
		elseif r == 1 then
			light = lightWorld:newLight(mx, my, 127, 63, 31, lightRange)
		else
			light = lightWorld:newLight(mx, my, 31, 63, 127, lightRange)
		end
		light:setSmooth(lightSmooth)
		light:setGlowStrength(0.3)
		math.randomseed(love.timer.getTime())
		light:setAngle(math.random(1, 5) * 0.1 * math.pi)
	elseif k == "c" then
		if colorAberration == 0.0 then
			colorAberration = 3.0
		end
	end
end