58 lines
1.3 KiB
Go
58 lines
1.3 KiB
Go
package main
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import (
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"runtime"
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"github.com/go-gl/gl/v4.1-core/gl"
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"github.com/go-gl/glfw/v3.3/glfw"
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"github.com/go-gl/mathgl/mgl32"
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)
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const (
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start_width = 1920
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start_height = 1080
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)
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func main() {
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runtime.LockOSThread()
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if err := glfw.Init(); err != nil {
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}
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defer glfw.Terminate()
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glfw.WindowHint(glfw.ContextVersionMajor, 4)
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glfw.WindowHint(glfw.ContextVersionMinor, 1)
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glfw.WindowHint(glfw.OpenGLProfile, glfw.OpenGLCoreProfile)
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window, err := glfw.CreateWindow(start_width, start_height, "Learning OpenGL", nil, nil)
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if err != nil {
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panic(err)
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}
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window.MakeContextCurrent()
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if err := gl.Init(); err != nil {
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panic(err)
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}
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projection := CreateOrthographicProjection(start_width, start_height)
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InitHLGL(projection)
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gl.ClearColor(0.2, 0.3, 0.3, 1.0)
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for !window.ShouldClose() {
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gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
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// DrawRectangleWH(100, 100, 700, 150, HLColorRGBA{255, 0, 0, 255})
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// DrawRectangleWH(400, 200, 300, 300, HLColorRGBA{0, 255, 0, 255})
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DrawRoundedRectangle(200, 500, 200, 200, 10, HLColorRGBA{0, 0, 255, 255})
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window.SwapBuffers()
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glfw.WaitEvents()
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}
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window.Destroy()
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return
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}
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func CreateOrthographicProjection(width, height int) mgl32.Mat4 {
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return mgl32.Ortho(0, float32(width), 0, float32(height), -1, 1)
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}
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