69 lines
1.4 KiB
Go
69 lines
1.4 KiB
Go
package main
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import (
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"time"
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"github.com/go-gl/mathgl/mgl32"
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"github.com/faiface/pixel"
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"github.com/faiface/pixel/pixelgl"
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"golang.org/x/image/colornames"
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)
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func run() {
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// Set up window configs
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cfg := pixelgl.WindowConfig{ // Default: 1024 x 768
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Title: "Golang GLSL",
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// Bounds: pixel.R(0, 0, float64(width), float64(height)),
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Bounds: pixel.R(0, 0, argv.Width, argv.Height),
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VSync: true,
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}
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win, err := pixelgl.NewWindow(cfg)
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if err != nil {
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panic(err)
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}
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camVector := win.Bounds().Center()
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bounds := win.Bounds()
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bounds.Max = bounds.Max.ScaledXY(pixel.V(1.0, 1.0))
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// I am putting all shader example initializing stuff here for
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// easier reference to those learning to use this functionality
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var uMouse mgl32.Vec4
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var uTime float32
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var glDrift float32 = argv.GLdrift
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canvas := win.Canvas()
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uResolution := mgl32.Vec2{float32(win.Bounds().W()), float32(win.Bounds().H())}
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EasyBindUniforms(canvas,
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"uResolution", &uResolution,
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"uTime", &uTime,
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"uMouse", &uMouse,
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"uDrift", &glDrift,
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)
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canvas.SetFragmentShader(glslFile)
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start := time.Now()
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// Game Loop
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for !win.Closed() {
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uTime = float32(time.Since(start).Seconds())
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mpos := win.MousePosition()
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uMouse[0] = float32(mpos.X)
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uMouse[1] = float32(mpos.Y)
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win.Clear(colornames.Black)
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// Drawing to the screen
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canvas.Draw(win, pixel.IM.Moved(camVector))
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win.Update()
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}
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}
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