mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2025-11-01 04:02:48 +08:00
77 lines
1.7 KiB
Go
77 lines
1.7 KiB
Go
// Copyright 2019 The Ebiten 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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package main
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import (
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"fmt"
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"image/color"
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"log"
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"math/rand"
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"time"
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"github.com/hajimehoshi/ebiten/v2"
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"github.com/hajimehoshi/ebiten/v2/ebitenutil"
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)
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const (
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screenWidth = 320
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screenHeight = 240
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)
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func init() {
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rand.Seed(time.Now().UnixNano())
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}
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type Game struct {
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offscreen *ebiten.Image
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}
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func NewGame() *Game {
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return &Game{
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offscreen: ebiten.NewImage(screenWidth, screenHeight),
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}
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}
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func (g *Game) Update() error {
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s := g.offscreen.Bounds().Size()
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x := rand.Intn(s.X)
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y := rand.Intn(s.Y)
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c := color.RGBA{
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byte(rand.Intn(256)),
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byte(rand.Intn(256)),
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byte(rand.Intn(256)),
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byte(0xff),
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}
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g.offscreen.Set(x, y, c)
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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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screen.DrawImage(g.offscreen, nil)
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ebitenutil.DebugPrint(screen, fmt.Sprintf("TPS: %0.2f\nFPS: %0.2f", ebiten.ActualTPS(), ebiten.ActualFPS()))
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}
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func (g *Game) Layout(outsideWidth, outsideHeight int) (int, int) {
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return screenWidth, screenHeight
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}
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func main() {
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ebiten.SetWindowSize(screenWidth*2, screenHeight*2)
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ebiten.SetWindowTitle("Set (Ebitengine Demo)")
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if err := ebiten.RunGame(NewGame()); err != nil {
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log.Fatal(err)
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}
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}
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