// Setup is called before the main loop is started
func (*DefaultScene) Setup(w *ecs.World) {
engo.SetBackground(color.White)
w.AddSystem(&engo.RenderSystem{})
// The most important line in this whole demo:
w.AddSystem(engo.NewKeyboardScroller(scrollSpeed, engo.DefaultHorizontalAxis, engo.DefaultVerticalAxis))
// Create the background; this way we'll see when we actually scroll
demoutils.NewBackground(w, worldWidth, worldHeight, color.RGBA{102, 153, 0, 255}, color.RGBA{102, 173, 0, 255})
}
func (*DefaultScene) Setup(w *ecs.World) {
engo.SetBackground(color.White)
w.AddSystem(&engo.MouseSystem{})
w.AddSystem(&engo.RenderSystem{})
w.AddSystem(&ControlSystem{})
// These are not required, but allow you to move / rotate and still see that it works
w.AddSystem(&engo.MouseZoomer{-0.125})
w.AddSystem(engo.NewKeyboardScroller(500, engo.DefaultHorizontalAxis, engo.DefaultVerticalAxis))
w.AddSystem(&engo.MouseRotator{RotationSpeed: 0.125})
// Retrieve a texture
texture := engo.Files.Image("icon.png")
// Create an entity
guy := Guy{BasicEntity: ecs.NewBasic()}
// Initialize the components, set scale to 8x
guy.RenderComponent = engo.RenderComponent{
Drawable: texture,
Scale: engo.Point{8, 8},
}
guy.SpaceComponent = engo.SpaceComponent{
Position: engo.Point{200, 200},
Width: texture.Width() * guy.RenderComponent.Scale.X,
Height: texture.Height() * guy.RenderComponent.Scale.Y,
Rotation: 90,
}
// guy.MouseComponent doesn't have to be set, because its default values will do
// Add our guy to appropriate systems
for _, system := range w.Systems() {
switch sys := system.(type) {
case *engo.RenderSystem:
sys.Add(&guy.BasicEntity, &guy.RenderComponent, &guy.SpaceComponent)
case *engo.MouseSystem:
sys.Add(&guy.BasicEntity, &guy.MouseComponent, &guy.SpaceComponent, &guy.RenderComponent)
case *ControlSystem:
sys.Add(&guy.BasicEntity, &guy.MouseComponent)
}
}
}
// Setup is called before the main loop is started
func (*DefaultScene) Setup(w *ecs.World) {
engo.SetBackground(color.White)
w.AddSystem(&engo.RenderSystem{})
// Adding KeyboardScroller so we can actually see the difference between background and HUD when scrolling
w.AddSystem(engo.NewKeyboardScroller(scrollSpeed, engo.DefaultHorizontalAxis, engo.DefaultVerticalAxis))
w.AddSystem(&engo.MouseZoomer{zoomSpeed})
// Create background, so we can see difference between this and HUD
demoutils.NewBackground(w, worldWidth, worldHeight, color.RGBA{102, 153, 0, 255}, color.RGBA{102, 173, 0, 255})
// Define parameters for the hud
hudWidth := 200 // Can be anything you want
hudHeight := int(engo.WindowHeight()) // Can be anything you want
// Generate something that uses the PriorityLevel HUDGround or up. We're giving the same color twice,
// so it'll create one solid color.
hudBg := demoutils.NewBackground(w, hudWidth, hudHeight, color.RGBA{255, 0, 255, 180}, color.RGBA{255, 0, 255, 180})
// These adjustments are needed to transform it into a HUD:
hudBg.RenderComponent.SetZIndex(1) // something bigger than default (0), so it'll be on top of the regular background
hudBg.RenderComponent.SetShader(engo.HUDShader)
}
// Setup is called before the main loop is started
func (*DefaultScene) Setup(w *ecs.World) {
engo.SetBackground(color.RGBA{55, 55, 55, 255})
w.AddSystem(&engo.RenderSystem{})
// Adding camera controllers so we can verify it doesn't break when we move
w.AddSystem(engo.NewKeyboardScroller(scrollSpeed, engo.DefaultHorizontalAxis, engo.DefaultVerticalAxis))
w.AddSystem(&engo.MouseZoomer{zoomSpeed})
w.AddSystem(&engo.MouseRotator{RotationSpeed: 0.125})
triangle1 := MyShape{BasicEntity: ecs.NewBasic()}
triangle1.SpaceComponent = engo.SpaceComponent{Width: 100, Height: 100}
triangle1.RenderComponent = engo.RenderComponent{Drawable: engo.Triangle{}, Color: color.RGBA{255, 0, 0, 255}}
triangle1.RenderComponent.SetShader(engo.LegacyShader)
for _, system := range w.Systems() {
switch sys := system.(type) {
case *engo.RenderSystem:
sys.Add(&triangle1.BasicEntity, &triangle1.RenderComponent, &triangle1.SpaceComponent)
}
}
rectangle1 := MyShape{BasicEntity: ecs.NewBasic()}
rectangle1.SpaceComponent = engo.SpaceComponent{Position: engo.Point{100, 100}, Width: 100, Height: 100}
rectangle1.RenderComponent = engo.RenderComponent{Drawable: engo.Rectangle{}, Color: color.RGBA{0, 255, 0, 255}}
rectangle1.RenderComponent.SetShader(engo.LegacyShader)
for _, system := range w.Systems() {
switch sys := system.(type) {
case *engo.RenderSystem:
sys.Add(&rectangle1.BasicEntity, &rectangle1.RenderComponent, &rectangle1.SpaceComponent)
}
}
circle1 := MyShape{BasicEntity: ecs.NewBasic()}
circle1.SpaceComponent = engo.SpaceComponent{Position: engo.Point{200, 200}, Width: 100, Height: 100}
circle1.RenderComponent = engo.RenderComponent{Drawable: engo.Circle{}, Color: color.RGBA{0, 0, 255, 255}}
circle1.RenderComponent.SetShader(engo.LegacyShader)
for _, system := range w.Systems() {
switch sys := system.(type) {
case *engo.RenderSystem:
sys.Add(&circle1.BasicEntity, &circle1.RenderComponent, &circle1.SpaceComponent)
}
}
triangle2 := MyShape{BasicEntity: ecs.NewBasic()}
triangle2.SpaceComponent = engo.SpaceComponent{Position: engo.Point{300, 300}, Width: 100, Height: 100}
triangle2.RenderComponent = engo.RenderComponent{Drawable: engo.Triangle{TriangleType: engo.TriangleRight}, Color: color.RGBA{255, 255, 0, 255}}
triangle2.RenderComponent.SetShader(engo.LegacyShader)
for _, system := range w.Systems() {
switch sys := system.(type) {
case *engo.RenderSystem:
sys.Add(&triangle2.BasicEntity, &triangle2.RenderComponent, &triangle2.SpaceComponent)
}
}
line1 := MyShape{BasicEntity: ecs.NewBasic()}
line1.SpaceComponent = engo.SpaceComponent{Position: engo.Point{400, 400}, Width: 1, Height: 100}
line1.RenderComponent = engo.RenderComponent{Drawable: engo.Rectangle{}, Color: color.RGBA{0, 255, 255, 255}}
line1.RenderComponent.SetShader(engo.LegacyShader)
for _, system := range w.Systems() {
switch sys := system.(type) {
case *engo.RenderSystem:
sys.Add(&line1.BasicEntity, &line1.RenderComponent, &line1.SpaceComponent)
}
}
complexTriangle1 := MyShape{BasicEntity: ecs.NewBasic()}
complexTriangle1.SpaceComponent = engo.SpaceComponent{Position: engo.Point{500, 500}, Width: 100, Height: 100}
complexTriangle1.RenderComponent = engo.RenderComponent{Drawable: engo.ComplexTriangles{
Points: []engo.Point{
{0.0, 0.0}, {1.0, 0.25}, {0.5, 0.5},
{0.5, 0.5}, {1.0, 0.75}, {0.0, 1.0},
{0.0, 0.0}, {0.5, 0.50}, {0.0, 1.0},
}}, Color: color.RGBA{255, 0, 255, 255}}
complexTriangle1.RenderComponent.SetShader(engo.LegacyShader)
for _, system := range w.Systems() {
switch sys := system.(type) {
case *engo.RenderSystem:
sys.Add(&complexTriangle1.BasicEntity, &complexTriangle1.RenderComponent, &complexTriangle1.SpaceComponent)
}
}
triangle3 := MyShape{BasicEntity: ecs.NewBasic()}
triangle3.SpaceComponent = engo.SpaceComponent{Position: engo.Point{23, 123}, Width: 50, Height: 50}
triangle3.RenderComponent = engo.RenderComponent{Drawable: engo.Triangle{BorderWidth: 1, BorderColor: color.White}, Color: color.RGBA{255, 0, 0, 255}}
triangle3.RenderComponent.SetShader(engo.LegacyShader)
for _, system := range w.Systems() {
switch sys := system.(type) {
case *engo.RenderSystem:
sys.Add(&triangle3.BasicEntity, &triangle3.RenderComponent, &triangle3.SpaceComponent)
}
}
rectangle2 := MyShape{BasicEntity: ecs.NewBasic()}
rectangle2.SpaceComponent = engo.SpaceComponent{Position: engo.Point{123, 223}, Width: 50, Height: 50}
rectangle2.RenderComponent = engo.RenderComponent{Drawable: engo.Rectangle{BorderWidth: 1, BorderColor: color.White}, Color: color.RGBA{0, 255, 0, 255}}
rectangle2.RenderComponent.SetShader(engo.LegacyShader)
for _, system := range w.Systems() {
switch sys := system.(type) {
case *engo.RenderSystem:
sys.Add(&rectangle2.BasicEntity, &rectangle2.RenderComponent, &rectangle2.SpaceComponent)
}
}
circle2 := MyShape{BasicEntity: ecs.NewBasic()}
circle2.SpaceComponent = engo.SpaceComponent{Position: engo.Point{223, 323}, Width: 50, Height: 50}
circle2.RenderComponent = engo.RenderComponent{Drawable: engo.Circle{BorderWidth: 1, BorderColor: color.White}, Color: color.RGBA{0, 0, 255, 255}}
circle2.RenderComponent.SetShader(engo.LegacyShader)
for _, system := range w.Systems() {
switch sys := system.(type) {
case *engo.RenderSystem:
sys.Add(&circle2.BasicEntity, &circle2.RenderComponent, &circle2.SpaceComponent)
}
}
triangle4 := MyShape{BasicEntity: ecs.NewBasic()}
triangle4.SpaceComponent = engo.SpaceComponent{Position: engo.Point{323, 423}, Width: 50, Height: 50}
triangle4.RenderComponent = engo.RenderComponent{Drawable: engo.Triangle{TriangleType: engo.TriangleRight, BorderWidth: 1, BorderColor: color.White}, Color: color.RGBA{255, 255, 0, 255}}
triangle4.RenderComponent.SetShader(engo.LegacyShader)
for _, system := range w.Systems() {
switch sys := system.(type) {
case *engo.RenderSystem:
sys.Add(&triangle4.BasicEntity, &triangle4.RenderComponent, &triangle4.SpaceComponent)
}
}
complexTriangle2 := MyShape{BasicEntity: ecs.NewBasic()}
complexTriangle2.SpaceComponent = engo.SpaceComponent{Position: engo.Point{523, 623}, Width: 50, Height: 50}
complexTriangle2.RenderComponent = engo.RenderComponent{Drawable: engo.ComplexTriangles{
BorderWidth: 1, BorderColor: color.White,
Points: []engo.Point{
{0.0, 0.0}, {1.0, 0.25}, {0.5, 0.5},
{0.5, 0.5}, {1.0, 0.75}, {0.0, 1.0},
{0.0, 0.0}, {0.5, 0.50}, {0.0, 1.0},
}}, Color: color.RGBA{255, 0, 255, 255}}
complexTriangle2.RenderComponent.SetShader(engo.LegacyShader)
for _, system := range w.Systems() {
switch sys := system.(type) {
case *engo.RenderSystem:
sys.Add(&complexTriangle2.BasicEntity, &complexTriangle2.RenderComponent, &complexTriangle2.SpaceComponent)
}
}
}