Move main to gl01

2024-08-02 18:47:14 +08:00
parent c954c502ba
commit dc062f32a3
3 changed files with 1 additions and 0 deletions
--- a/main.go
+++ b/main.go
@@ -0,0 +1,105 @@
+package main
+
+import (
+	"fmt"
+	"runtime"
+	"time"
+
+	"edgaru089.ink/go/gl01/internal/game"
+	gio "edgaru089.ink/go/gl01/internal/io"
+	_ "edgaru089.ink/go/gl01/internal/render/gpu_preference"
+	"edgaru089.ink/go/gl01/internal/util/itype"
+	"github.com/go-gl/gl/all-core/gl"
+	"github.com/go-gl/glfw/v3.3/glfw"
+)
+
+var (
+	frameTick *time.Ticker
+)
+
+
+func init() {
+	runtime.LockOSThread()
+}
+
+func main() {
+
+	err := gio.LoadConfig()
+	if err != nil {
+		panic(err)
+	}
+
+	if err := glfw.Init(); err != nil {
+		panic(err)
+	}
+	defer glfw.Terminate()
+
+	// framerate limit ticker
+	if gio.MainConfig.FramerateLimit > 0 {
+		frameTick = time.NewTicker(time.Second / time.Duration(gio.MainConfig.FramerateLimit))
+	}
+
+	glfw.WindowHint(glfw.Resizable, 1)
+	glfw.WindowHint(glfw.ContextVersionMajor, 3)
+	glfw.WindowHint(glfw.ContextVersionMinor, 3)
+	glfw.WindowHint(glfw.OpenGLProfile, glfw.OpenGLCoreProfile)
+	glfw.WindowHint(glfw.OpenGLForwardCompatible, 1)
+	win, err := glfw.CreateWindow(gio.MainConfig.WindowWidth, gio.MainConfig.WindowHeight, "Gl01", nil, nil)
+	if err != nil {
+		panic(err)
+	}
+	win.MakeContextCurrent()
+	// vsync
+	if gio.MainConfig.FramerateLimit == 0 {
+		glfw.SwapInterval(1)
+	} else {
+		glfw.SwapInterval(0)
+	}
+
+	err = gl.Init()
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println("OpenGL Version: ", gl.GoStr(gl.GetString(gl.VERSION)))
+
+	game := game.NewGame()
+	game.Init(win)
+
+	gio.ClearColor = itype.Vec4f{0.6, 0.8, 1.0, 1.0}
+	gio.FogColor = itype.Vec4f{0.6, 0.8, 1.0, 1.0}
+	gl.ClearColor(0.6, 0.8, 1.0, 1)
+	gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
+	win.SwapBuffers()
+	winClock := time.Now()
+
+	fpsClock := time.Now()
+	fpsCounter := 0
+
+	for !win.ShouldClose() {
+
+		deltaTime := time.Since(winClock)
+		winClock = time.Now()
+		game.Update(win, deltaTime)
+
+		gl.ClearColor(0.6, 0.8, 1.0, 1)
+		gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
+
+		game.Render(win)
+
+		win.SwapBuffers()
+		glfw.PollEvents()
+
+		if time.Since(fpsClock) >= time.Second {
+			win.SetTitle(fmt.Sprintf("Gl01 %dFPS", fpsCounter))
+			fpsCounter = 0
+			fpsClock = time.Now()
+		} else {
+			fpsCounter++
+		}
+
+		if gio.MainConfig.FramerateLimit > 0 {
+			<-frameTick.C
+		}
+	}
+}