main.lua

---
--- Generated by EmmyLua(https://github.com/EmmyLua)
--- Created by yangfan
--- DateTime: 2021/11/15 20:05
---程序主入口，以及love2d相关的生命周期回调

require('app/approot')

---@type AppRoot
local AppRoot = classLib.AppRoot.new()

local loveGraphics = love.graphics
local loveTimer = love.timer
local renderingTimeTips = {'Rendering Time: ',0}
local triangleCountTips = {'Triangles : ',0}
local pixelCountTips = {'Pixels : ',0}
local resolutionTips = table.concat({'渲染分辨率: ',PIXEL_WIDTH,' x ',PIXEL_HEIGHT},'')

local doRendering = true

local function start()
    love.window.setTitle("使用Lua基于Love2D引擎实现3D图形渲染 "..resolutionTips)
    love.window.setMode(SCREEN_WIDTH, SCREEN_HEIGHT, {resizable=false, vsync=false})
    love.filesystem.setSymlinksEnabled(true)
    AppRoot:Init()
end

function love.load()
    AppRoot:OnLoad()
end

function love.keyreleased(key)
    if key == "escape" then
        love.event.quit()
    elseif key == 'space' then
        doRendering = true
    end
end

function love.update(dt)
    AppRoot:OnUpdate(dt)
end

function love.draw()
    --
    if doRendering then
        local statTime = loveTimer.getTime()
        --
        AppRoot:RenderOneFrame()
        --
        renderingTimeTips[2] = loveTimer.getTime() - statTime
        --
        doRendering = false
        --
        triangleCountTips[2] = AppRoot.renderer.drawnTriangleCnt
        pixelCountTips[2] = AppRoot.renderer.drawnPixelCnt
    end
    --
    AppRoot:OuputFrame()
    --
    loveGraphics.setColor(1,0,0,1)
    local concat = table.concat
    loveGraphics.print(concat(renderingTimeTips,''),10,0)
    loveGraphics.print(concat(triangleCountTips,''),10,20)
    loveGraphics.print(concat(pixelCountTips,''),10,40)
    loveGraphics.print('Click \'Space\' to render next frame !',10,60)
end

function love.quit()
    AppRoot:Quit()
end

do start() end