func sparkParticles() *effects.ParticleSystem {
img, _ := assets.ImportImageCached("TestAssets/Spark.png")
smoke := effects.CreateParticleSystem(effects.ParticleSettings{
MaxParticles: 7,
ParticleEmitRate: 7,
BaseGeometry: renderer.CreateBox(float32(1), float32(1)),
TotalFrames: 1,
FramesX: 1,
FramesY: 1,
MaxLife: 1.0,
MinLife: 0.7,
StartColor: color.NRGBA{255, 220, 180, 255},
EndColor: color.NRGBA{255, 155, 55, 255},
StartSize: mgl32.Vec3{1, 1, 1}.Mul(0.008),
EndSize: mgl32.Vec3{1, 1, 1}.Mul(0.005),
MinTranslation: mgl32.Vec3{1, 1, 1}.Mul(-0.04),
MaxTranslation: mgl32.Vec3{1, 1, 1}.Mul(0.04),
MinStartVelocity: mgl32.Vec3{-0.5, 0.0, -0.5},
MaxStartVelocity: mgl32.Vec3{0.5, 1.0, 0.5},
Acceleration: mgl32.Vec3{0.0, -1.0, 0.0},
OnParticleUpdate: func(p *effects.Particle) {
p.Scale[0] = p.Scale[0] * (1 + p.Velocity.Len()*3.5)
p.Orientation = mgl32.QuatBetweenVectors(mgl32.Vec3{1, 0, 0}, p.Velocity)
},
})
smoke.Node.Material = renderer.NewMaterial(renderer.NewTexture("diffuseMap", img, false))
return smoke
}
func fireParticles() *effects.ParticleSystem {
img, _ := assets.ImportImageCached("TestAssets/Fire.png")
fire := effects.CreateParticleSystem(effects.ParticleSettings{
MaxParticles: 12,
ParticleEmitRate: 3,
BaseGeometry: renderer.CreateBox(float32(1), float32(1)),
TotalFrames: 36,
FramesX: 6,
FramesY: 6,
MaxLife: 0.8,
MinLife: 1.5,
StartColor: color.NRGBA{255, 180, 80, 255},
EndColor: color.NRGBA{255, 60, 20, 255},
StartSize: mgl32.Vec3{1, 1, 1}.Mul(0.16),
EndSize: mgl32.Vec3{1, 1, 1}.Mul(0.23),
MinTranslation: mgl32.Vec3{1, 1, 1}.Mul(-0.01),
MaxTranslation: mgl32.Vec3{1, 1, 1}.Mul(0.01),
MinStartVelocity: mgl32.Vec3{-0.02, 0, -0.02},
MaxStartVelocity: mgl32.Vec3{0.02, 0.08, 0.02},
MinRotation: 3.0,
MaxRotation: 3.6,
})
fire.Node.Material = renderer.NewMaterial(renderer.NewTexture("diffuseMap", img, false))
return fire
}
func sparkParticles() *effects.ParticleGroup {
img, _ := assets.ImportImageCached("resources/spark.png")
material := renderer.NewMaterial(renderer.NewTexture("diffuseMap", img, false))
particleSystem := effects.CreateParticleSystem(effects.ParticleSettings{
MaxParticles: 80,
ParticleEmitRate: 400,
BaseGeometry: renderer.CreateBox(float32(1), float32(1)),
TotalFrames: 1,
FramesX: 1,
FramesY: 1,
MaxLife: 3.3,
MinLife: 1.7,
StartColor: color.NRGBA{254, 160, 90, 254},
EndColor: color.NRGBA{254, 160, 90, 254},
StartSize: mgl32.Vec2{2, 2}.Vec3(0),
EndSize: mgl32.Vec2{2, 2}.Vec3(0),
MinTranslation: mgl32.Vec2{-5, -5}.Vec3(0),
MaxTranslation: mgl32.Vec2{5, 5}.Vec3(0),
MinStartVelocity: mgl32.Vec2{-100, -100}.Vec3(0),
MaxStartVelocity: mgl32.Vec2{100, 100}.Vec3(0),
Acceleration: mgl32.Vec2{0, 400}.Vec3(0),
OnParticleUpdate: func(p *effects.Particle) {
p.Scale[0] = p.Scale[0] * (1 + p.Velocity.Len()*0.05)
p.Orientation = mgl32.QuatBetweenVectors(mgl32.Vec3{1, 0, 0}, p.Velocity)
},
})
particleSystem.FaceCamera = false
particleGroup := effects.NewParticleGroup(nil, particleSystem)
particleGroup.Node.Material = material
return particleGroup
}
func majicParticles() *effects.ParticleGroup {
img, _ := assets.ImportImageCached("resources/majic.png")
material := renderer.NewMaterial(renderer.NewTexture("diffuseMap", img, false))
particleSystem := effects.CreateParticleSystem(effects.ParticleSettings{
MaxParticles: 300,
ParticleEmitRate: 700,
BaseGeometry: renderer.CreateBox(float32(1), float32(1)),
TotalFrames: 9,
FramesX: 3,
FramesY: 3,
MaxLife: 1.3,
MinLife: 0.7,
StartColor: color.NRGBA{254, 254, 254, 254},
EndColor: color.NRGBA{254, 254, 254, 254},
StartSize: mgl32.Vec2{10, 10}.Vec3(0),
EndSize: mgl32.Vec2{10, 10}.Vec3(0),
MinTranslation: mgl32.Vec2{-1, -1}.Vec3(0),
MaxTranslation: mgl32.Vec2{1, 1}.Vec3(0),
MinStartVelocity: mgl32.Vec2{-170, -170}.Vec3(0),
MaxStartVelocity: mgl32.Vec2{170, 170}.Vec3(0),
MaxRotation: -3.14,
MinRotation: 3.14,
})
particleSystem.FaceCamera = false
particleGroup := effects.NewParticleGroup(nil, particleSystem)
particleGroup.Node.Material = material
return particleGroup
}
func dustParticles() *effects.ParticleGroup {
img, _ := assets.ImportImageCached("resources/smoke.png")
material := renderer.NewMaterial(renderer.NewTexture("diffuseMap", img, false))
particleSystem := effects.CreateParticleSystem(effects.ParticleSettings{
MaxParticles: 5,
ParticleEmitRate: 20,
BaseGeometry: renderer.CreateBox(float32(1), float32(1)),
TotalFrames: 64,
FramesX: 8,
FramesY: 8,
MaxLife: 3.3,
MinLife: 2.7,
StartColor: color.NRGBA{254, 254, 254, 120},
EndColor: color.NRGBA{254, 254, 254, 0},
StartSize: mgl32.Vec2{40, 40}.Vec3(0),
EndSize: mgl32.Vec2{180, 180}.Vec3(0),
MinTranslation: mgl32.Vec2{-2, -2}.Vec3(0),
MaxTranslation: mgl32.Vec2{2, 2}.Vec3(0),
MinStartVelocity: mgl32.Vec2{-5.0, -5.0}.Vec3(0),
MaxStartVelocity: mgl32.Vec2{5.0, 5.0}.Vec3(0),
MaxRotation: -3.14,
MinRotation: 3.14,
})
particleSystem.FaceCamera = false
particleGroup := effects.NewParticleGroup(nil, particleSystem)
particleGroup.Node.Material = material
return particleGroup
}
func htmlContent(content *ui.Container) []ui.Activatable {
html := bytes.NewBufferString(`
<body>
<div class=content>
<h1 id=heading>UI EXAMPLE!</h1>
<img src=testImage></img>
<input type=text placeholder="this is a placeholder"></input>
<input type=password></input>
<button onclick=clickButton></button>
<div>
</body>
`)
css := bytes.NewBufferString(`
.content img {
width: 200;
}
.content input {
background-color: #fff;
margin: 10 0 0 0;
}
.content button {
padding: 20;
margin: 10 0 0 0;
background-color: #a00;
}
.content button:hover {
background-color: #e99;
}
`)
// create assets
htmlAssets := ui.NewHtmlAssets()
// image
img, _ := assets.ImportImageCached("resources/cubemap.png")
htmlAssets.AddImage("testImage", img)
// button click callback
htmlAssets.AddCallback("clickButton", func(element ui.Element, args ...interface{}) {
if len(args) >= 2 && !args[1].(bool) { // on release
content.TextElementById("heading").SetText("release").SetTextColor(color.NRGBA{254, 0, 0, 254}).ReRender()
} else {
content.TextElementById("heading").SetText("press").SetTextColor(color.NRGBA{0, 254, 0, 254}).ReRender()
}
})
// Render the html/css code to the content container
activatables, err := ui.LoadHTML(content, html, css, htmlAssets)
if err != nil {
fmt.Println("Error loading html: ", err)
}
return activatables
}
func populateContent(content *ui.Container) []ui.Activatable {
// example text title
textElement := ui.NewTextElement("UI EXAMPLE!", color.Black, 16, nil)
// example image element
img, _ := assets.ImportImageCached("resources/cubemap.png")
imageElement := ui.NewImageElement(img)
imageElement.SetWidth(200)
// example text field
tf := ui.NewTextField("", color.Black, 16, nil)
tf.SetPlaceholder("this is a placeholder")
tf.SetBackgroundColor(255, 255, 255, 255)
tf.SetMargin(ui.Margin{10, 0, 10, 0})
// example hidden text field
passwordTf := ui.NewTextField("", color.Black, 16, nil)
passwordTf.SetHidden(true)
passwordTf.SetBackgroundColor(255, 255, 255, 255)
passwordTf.SetMargin(ui.Margin{0, 0, 10, 0})
// example button
button := ui.NewContainer()
button.SetBackgroundColor(160, 0, 0, 254)
button.SetPadding(ui.NewMargin(20))
// button on click event
button.Hitbox.AddOnClick(func(button int, release bool, position mgl32.Vec2) {
if release {
textElement.SetText("release").SetTextColor(color.NRGBA{254, 0, 0, 254}).ReRender()
} else {
textElement.SetText("click").SetTextColor(color.NRGBA{0, 254, 0, 254}).ReRender()
}
})
// button on hover event
button.Hitbox.AddOnHover(func() {
button.SetBackgroundColor(210, 100, 100, 254)
})
button.Hitbox.AddOnUnHover(func() {
button.SetBackgroundColor(160, 0, 0, 254)
})
// add everything to the content container
content.AddChildren(textElement, imageElement, tf, passwordTf, button)
// return everything that should be included in the Tabs order
return []ui.Activatable{tf, passwordTf}
}
func NewCharacter() *Character {
characterImg, _ := assets.ImportImageCached("resources/stickman.png")
characterMat := renderer.NewMaterial(renderer.NewTexture("diffuseMap", characterImg, false))
sprite := effects.CreateSprite(4, 4, 1, characterMat)
sprite.FaceCamera = false
sprite.SetScale(mgl32.Vec2{characterSize, characterSize}.Vec3(0))
sprite.SetTranslation(mgl32.Vec2{400, 400}.Vec3(0))
body := chipmunkPhysics.NewChipmunkBody(1, 1)
circle := chipmunk.NewCircle(vect.Vector_Zero, float32(characterSize*0.5))
body.Body.AddShape(circle)
return &Character{
body: body,
sprite: sprite,
}
}