mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-09-21 13:52:22 +02:00
61 lines
1.2 KiB
Go
61 lines
1.2 KiB
Go
package monochrome
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import (
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"github.com/hajimehoshi/go.ebiten/graphics"
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"github.com/hajimehoshi/go.ebiten/graphics/matrix"
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"image"
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"image/color"
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_ "image/png"
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"os"
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)
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type Monochrome struct {
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ebitenTexture graphics.Texture
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}
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func New() *Monochrome {
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return &Monochrome{}
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}
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func (game *Monochrome) ScreenWidth() int {
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return 256
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}
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func (game *Monochrome) ScreenHeight() int {
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return 240
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}
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func (game *Monochrome) Fps() int {
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return 60
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}
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func (game *Monochrome) Init(tf graphics.TextureFactory) {
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file, err := os.Open("ebiten.png")
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if err != nil {
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panic(err)
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}
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defer file.Close()
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img, _, err := image.Decode(file)
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if err != nil {
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panic(err)
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}
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if game.ebitenTexture, err = tf.NewTextureFromImage(img); err != nil {
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panic(err)
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}
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}
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func (game *Monochrome) Update() {
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}
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func (game *Monochrome) Draw(g graphics.GraphicsContext, offscreen graphics.Texture) {
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g.Fill(&color.RGBA{R: 128, G: 128, B: 255, A: 255})
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geometryMatrix := matrix.IdentityGeometry()
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tx := game.ScreenWidth() / 2 - game.ebitenTexture.Width / 2
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ty := game.ScreenHeight() / 2 - game.ebitenTexture.Height / 2
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geometryMatrix.Translate(float64(tx), float64(ty))
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g.DrawTexture(game.ebitenTexture.ID,
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geometryMatrix, matrix.Monochrome())
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}
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