leaky-pool/client/main.go

package main

import (
	"log"
	"strconv"
	"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(1920, 1080, "Leaky Pool")

	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, 80)
	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 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)
	a.Gls().ClearColor(0, 0, 0, 1.0)

	///////
	//GUI//
	///////

	labelServer := gui.NewLabel("Server: ")
	labelServer.SetPosition(10, 8)
	scene.Add(labelServer)

	editServer := gui.NewEdit(150, "10.69.71.106:6699")
	editServer.SetText("10.69.71.106:6699")
	editServer.SetPosition(labelServer.Position().X+labelServer.Width()+10, 10)
	scene.Add(editServer)

	labelPoolSize := gui.NewLabel("Pool Size: ")
	labelPoolSize.SetPosition(editServer.Position().X+editServer.Width()+10, 8)
	scene.Add(labelPoolSize)

	editPoolSize := gui.NewEdit(30, "10")
	editPoolSize.SetText("10")
	editPoolSize.SetPosition(labelPoolSize.Position().X+labelPoolSize.Width()+10, 10)
	scene.Add(editPoolSize)

	buttonConnect := gui.NewButton("Start Pool")
	buttonConnect.SetPosition(editPoolSize.Position().X+editPoolSize.Width()+10, 8)
	buttonConnect.Subscribe(gui.OnClick, func(name string, ev interface{}) {

		poolSize, err := strconv.Atoi(editPoolSize.Text())
		if err != nil {
			log.Printf("failed to convert poolSize '%d' to integer: %v", poolSize, err)
			return
		}
		go connPoolWatchdog(editServer.Text(), poolSize, scene) // goroutine that keeps the pool full of healthy TCP connections

		buttonConnect.Label.SetText("Stop Pool") // stop not implemented

	})
	scene.Add(buttonConnect)

	// 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)

	// 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)
	})
}