87 lines
1.7 KiB
Go
87 lines
1.7 KiB
Go
package text
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import (
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"aego/core/mathx"
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"aego/demos"
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"aego/demos/internal/app"
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"aego/engine"
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"aego/platform/input"
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"aego/render"
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rendermodule "aego/render/module"
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"aego/render/view"
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)
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func init() {
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demos.Register("text", func() demos.Demo { return New() })
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}
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const sample = "The quick brown fox jumps over the lazy dog\n" +
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"0123456789 !\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~\n" +
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"ABCDEFGHIJKLMNOPQRSTUVWXYZ\n" +
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"abcdefghijklmnopqrstuvwxyz"
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type Demo struct {
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app.Base
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scale float32
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mod *rendermodule.Module
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}
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func New() *Demo {
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return &Demo{scale: 2}
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}
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func (d *Demo) Name() string {
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return "text"
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}
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func (d *Demo) Module() *rendermodule.Module {
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if d.mod == nil {
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d.mod = rendermodule.New(render.Options{MaxSprites: 4096})
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}
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return d.mod
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}
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func (d *Demo) Init(e *engine.Engine) error {
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d.Attach(e, d.Module())
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return nil
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}
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func (d *Demo) Update(float64) {
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d.ToggleOverlay()
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in := d.Engine.Input()
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if in.KeyPressed(input.KeyEscape) {
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d.Engine.Quit()
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}
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if w := in.Wheel().Y; w != 0 {
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d.scale = mathx.Clamp(d.scale+w*0.25, 0.5, 8)
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}
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}
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func (d *Demo) Render(float64) {
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m := d.Engine.Metrics()
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scale := m.DisplayScale
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if scale <= 0 {
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scale = 1
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}
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v := view.ScreenView(m.PixelW, m.PixelH, scale)
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v.Clear = mathx.Color{R: 0.05, G: 0.05, B: 0.06, A: 1}
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v.DoClear = true
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v.Label = "text"
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font := d.Renderer.DebugFont()
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f := d.Renderer.View(v)
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if font != nil {
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pos := mathx.Vec2{X: 40, Y: 60}
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f.Text(font, sample, pos, d.scale, mathx.Color{R: 1, G: 1, B: 1, A: 1}, 1, 0)
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size := font.Measure(sample).Scale(d.scale)
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f.Debug().Space(0)
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f.Debug().Rect(mathx.Rect{X: pos.X, Y: pos.Y, W: size.X, H: size.Y},
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mathx.Color{R: 1, G: 0.4, B: 0.2, A: 0.9})
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}
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f.End()
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d.BeginUI()
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d.DrawOverlay(nil)
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d.FlushUI()
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}
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