init

go.mod

@@ -0,0 +1,12 @@
+module myschools.me/suguo/g3n-demo
+
+go 1.21.5
+
+require github.com/g3n/engine v0.2.0
+
+require (
+	github.com/go-gl/glfw/v3.3/glfw v0.0.0-20210410170116-ea3d685f79fb // indirect
+	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 // indirect
+	golang.org/x/image v0.0.0-20210607152325-775e3b0c77b9 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+)

go.sum

@@ -0,0 +1,14 @@
+github.com/g3n/engine v0.2.0 h1:7dmj4c+3xHcBnYrVmRuVf/oZ2JycxJU9Y+2FQj1Af2Y=
+github.com/g3n/engine v0.2.0/go.mod h1:rnj8jiLdKEDI8VbveKhmdL4rovjjy+uxNP5YROg2x8g=
+github.com/go-gl/glfw/v3.3/glfw v0.0.0-20210410170116-ea3d685f79fb h1:T6gaWBvRzJjuOrdCtg8fXXjKai2xSDqWTcKFUPuw8Tw=
+github.com/go-gl/glfw/v3.3/glfw v0.0.0-20210410170116-ea3d685f79fb/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
+github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 h1:DACJavvAHhabrF08vX0COfcOBJRhZ8lUbR+ZWIs0Y5g=
+github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
+golang.org/x/image v0.0.0-20210607152325-775e3b0c77b9 h1:D0iM1dTCbD5Dg1CbuvLC/v/agLc79efSj/L35Q3Vqhs=
+golang.org/x/image v0.0.0-20210607152325-775e3b0c77b9/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=

main.go

@@ -0,0 +1,81 @@
+package main
+
+import (
+	"time"
+
+	"github.com/g3n/engine/app"
+	"github.com/g3n/engine/camera"
+	"github.com/g3n/engine/core"
+	"github.com/g3n/engine/geometry"
+	"github.com/g3n/engine/gls"
+	"github.com/g3n/engine/graphic"
+	"github.com/g3n/engine/gui"
+	"github.com/g3n/engine/light"
+	"github.com/g3n/engine/material"
+	"github.com/g3n/engine/math32"
+	"github.com/g3n/engine/renderer"
+	"github.com/g3n/engine/util/helper"
+	"github.com/g3n/engine/window"
+)
+
+func main() {
+
+	// Create application and scene
+	a := app.App()
+	scene := core.NewNode()
+
+	// Set the scene to be managed by the gui manager
+	gui.Manager().Set(scene)
+
+	// Create perspective camera
+	cam := camera.New(1)
+	cam.SetPosition(0, 0, 3)
+	scene.Add(cam)
+
+	// Set up orbit control for the camera
+	camera.NewOrbitControl(cam)
+
+	// Set up callback to update viewport and camera aspect ratio when the window is resized
+	onResize := func(evname string, ev interface{}) {
+		// Get framebuffer size and update viewport accordingly
+		width, height := a.GetSize()
+		a.Gls().Viewport(0, 0, int32(width), int32(height))
+		// Update the camera's aspect ratio
+		cam.SetAspect(float32(width) / float32(height))
+	}
+	a.Subscribe(window.OnWindowSize, onResize)
+	onResize("", nil)
+
+	// Create a blue torus and add it to the scene
+	geom := geometry.NewTorus(1, .4, 12, 32, math32.Pi*2)
+	mat := material.NewStandard(math32.NewColor("DarkBlue"))
+	mesh := graphic.NewMesh(geom, mat)
+	scene.Add(mesh)
+
+	// Create and add a button to the scene
+	btn := gui.NewButton("Make Red")
+	btn.SetPosition(100, 40)
+	btn.SetSize(40, 40)
+	btn.Subscribe(gui.OnClick, func(name string, ev interface{}) {
+		mat.SetColor(math32.NewColor("DarkRed"))
+	})
+	scene.Add(btn)
+
+	// Create and add lights to the scene
+	scene.Add(light.NewAmbient(&math32.Color{1.0, 1.0, 1.0}, 0.8))
+	pointLight := light.NewPoint(&math32.Color{1, 1, 1}, 5.0)
+	pointLight.SetPosition(1, 0, 2)
+	scene.Add(pointLight)
+
+	// Create and add an axis helper to the scene
+	scene.Add(helper.NewAxes(0.5))
+
+	// Set background color to gray
+	a.Gls().ClearColor(0.5, 0.5, 0.5, 1.0)
+
+	// Run the application
+	a.Run(func(renderer *renderer.Renderer, deltaTime time.Duration) {
+		a.Gls().Clear(gls.DEPTH_BUFFER_BIT | gls.STENCIL_BUFFER_BIT | gls.COLOR_BUFFER_BIT)
+		renderer.Render(scene, cam)
+	})
+}

readme.md

@@ -0,0 +1,6 @@
+游戏引擎
+
+---
+
+
+https://github.com/g3n/engine