ebiten/internal/processtest/testdata/issue2089.go

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// Copyright 2022 The Ebiten Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build ignore
// +build ignore
package main
import (
"errors"
"fmt"
"image/color"
"github.com/hajimehoshi/ebiten/v2"
)
var regularTermination = errors.New("regular termination")
type Game struct {
count int
}
func (g *Game) Update() error {
g.count++
if g.count == 16 {
return regularTermination
}
w, h := 256+g.count, 256+g.count
img := ebiten.NewImage(w, h)
img.Fill(color.White)
for j := 0; j < h; j++ {
for i := 0; i < w; i++ {
if (i+j)%3 == 0 {
img.Set(i, j, color.Black)
}
}
}
for j := 0; j < h; j++ {
for i := 0; i < w; i++ {
want := color.RGBA{0xff, 0xff, 0xff, 0xff}
if (i+j)%3 == 0 {
want = color.RGBA{0, 0, 0, 0xff}
}
got := img.At(i, j)
if got != want {
panic(fmt.Sprintf("At(%d, %d): got: %v, want: %v", i, j, got, want))
}
}
}
return nil
}
func (g *Game) Draw(screen *ebiten.Image) {
}
func (g *Game) Layout(width, height int) (int, int) {
return width, height
}
func main() {
if err := ebiten.RunGame(&Game{}); err != nil && !errors.Is(err, regularTermination) {
panic(err)
}
}