light_world.lua/examples/normalMap.lua

76 lines
1.8 KiB
Lua

-- Example: Normal map Example
local LightWorld = require "lib"
function love.load()
x = 0
y = 0
scale = 1
-- load images
image = love.graphics.newImage("gfx/rock.png")
image_normal = love.graphics.newImage("gfx/rock_n.png")
-- create light world
lightWorld = LightWorld({
drawBackground = drawBackground,
drawForeground = drawForeground,
ambient = {55,55,55},
refractionStrength = 32.0,
reflectionVisibility = 0.75,
})
-- create light
lightMouse = lightWorld:newLight(0, 0, 160, 160, 160, 300)
lightMouse:setGlowStrength(0.3)
--lightMouse.normalInvert = true
-- create shadow bodys
local w, h = love.graphics.getWidth(), love.graphics.getHeight()
imageTest = lightWorld:newImage(image, w/2, h/2)
imageTest:setNormalMap(image_normal)
end
function love.update(dt)
love.window.setTitle("Light vs. Shadow Engine (FPS:" .. love.timer.getFPS() .. ")")
if love.keyboard.isDown("up") then
y = y - dt * 200
elseif love.keyboard.isDown("down") then
y = y + dt * 200
end
if love.keyboard.isDown("left") then
x = x - dt * 200
elseif love.keyboard.isDown("right") then
x = x + dt * 200
end
if love.keyboard.isDown("-") then
scale = scale - 0.01
elseif love.keyboard.isDown("=") then
scale = scale + 0.01
end
lightMouse:setPosition(love.mouse.getX()/scale, love.mouse.getY()/scale)
end
function love.draw()
love.graphics.push()
love.graphics.translate(x, y)
love.graphics.scale(scale)
lightWorld:draw(x,y,scale)
love.graphics.pop()
end
function drawBackground(l,t,w,h)
love.graphics.setColor(255, 255, 255)
love.graphics.rectangle("fill", -l/scale, -t/scale, w/scale, h/scale)
end
function drawForeground(l,t,w,h)
love.graphics.setColor(255, 255, 255)
local w, h = love.graphics.getWidth(), love.graphics.getHeight()
love.graphics.draw(image, w/2-(image:getWidth()/2), h/2-(image:getHeight()/2))
end