106 lines
2.1 KiB
Go
106 lines
2.1 KiB
Go
package main
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import (
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"fmt"
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"runtime"
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"time"
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"edgaru089.ink/go/gl01/internal/game"
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gio "edgaru089.ink/go/gl01/internal/io"
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_ "edgaru089.ink/go/gl01/internal/render/gpu_preference"
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"edgaru089.ink/go/gl01/internal/util/itype"
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"github.com/go-gl/gl/all-core/gl"
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"github.com/go-gl/glfw/v3.3/glfw"
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)
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var (
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frameTick *time.Ticker
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)
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func init() {
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runtime.LockOSThread()
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}
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func main() {
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err := gio.LoadConfig()
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if err != nil {
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panic(err)
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}
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if err := glfw.Init(); err != nil {
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panic(err)
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}
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defer glfw.Terminate()
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// framerate limit ticker
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if gio.MainConfig.FramerateLimit > 0 {
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frameTick = time.NewTicker(time.Second / time.Duration(gio.MainConfig.FramerateLimit))
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}
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glfw.WindowHint(glfw.Resizable, 1)
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glfw.WindowHint(glfw.ContextVersionMajor, 3)
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glfw.WindowHint(glfw.ContextVersionMinor, 3)
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glfw.WindowHint(glfw.OpenGLProfile, glfw.OpenGLCoreProfile)
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glfw.WindowHint(glfw.OpenGLForwardCompatible, 1)
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win, err := glfw.CreateWindow(gio.MainConfig.WindowWidth, gio.MainConfig.WindowHeight, "Gl01", nil, nil)
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if err != nil {
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panic(err)
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}
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win.MakeContextCurrent()
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// vsync
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if gio.MainConfig.FramerateLimit == 0 {
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glfw.SwapInterval(1)
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} else {
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glfw.SwapInterval(0)
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}
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err = gl.Init()
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if err != nil {
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panic(err)
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}
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fmt.Println("OpenGL Version: ", gl.GoStr(gl.GetString(gl.VERSION)))
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game := game.NewGame()
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game.Init(win)
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gio.ClearColor = itype.Vec4f{0.6, 0.8, 1.0, 1.0}
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gio.FogColor = itype.Vec4f{0.6, 0.8, 1.0, 1.0}
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gl.ClearColor(0.6, 0.8, 1.0, 1)
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gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
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win.SwapBuffers()
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winClock := time.Now()
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fpsClock := time.Now()
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fpsCounter := 0
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for !win.ShouldClose() {
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deltaTime := time.Since(winClock)
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winClock = time.Now()
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game.Update(win, deltaTime)
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gl.ClearColor(0.6, 0.8, 1.0, 1)
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gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
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game.Render(win)
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win.SwapBuffers()
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glfw.PollEvents()
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if time.Since(fpsClock) >= time.Second {
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win.SetTitle(fmt.Sprintf("Gl01 %dFPS", fpsCounter))
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fpsCounter = 0
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fpsClock = time.Now()
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} else {
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fpsCounter++
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}
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if gio.MainConfig.FramerateLimit > 0 {
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<-frameTick.C
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}
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}
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}
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