mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-15 23:47:26 +01:00
80 lines
1.5 KiB
Go
80 lines
1.5 KiB
Go
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// Copyright 2023 The Ebitengine Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build ignore
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package main
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import (
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"fmt"
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"image/color"
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"github.com/hajimehoshi/ebiten/v2"
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)
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type Game struct {
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count int
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imgs []*ebiten.Image
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}
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func (g *Game) Update() error {
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const (
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w = 16
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h = 16
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)
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g.count++
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if g.count >= 16 {
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for c, img := range g.imgs {
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for j := 0; j < h; j++ {
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for i := 0; i < h; i++ {
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got := img.At(i, j).(color.RGBA)
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want := color.RGBA{byte(c), byte(c), byte(c), byte(c)}
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if got != want {
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return fmt.Errorf("index: %d, got: %v, want: %v", c, got, want)
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}
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}
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}
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}
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return ebiten.Termination
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}
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pix := make([]byte, 4*w*h)
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c := byte(len(g.imgs))
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for i := range pix {
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pix[i] = c
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}
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img := ebiten.NewImage(w, h)
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img.WritePixels(pix)
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g.imgs = append(g.imgs, img)
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return nil
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}
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func (g *Game) Draw(screen *ebiten.Image) {
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}
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func (g *Game) Layout(width, height int) (int, int) {
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return width, height
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}
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func main() {
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if err := ebiten.RunGame(&Game{}); err != nil {
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panic(err)
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}
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}
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