mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-12-26 19:58:54 +01:00
90 lines
2.3 KiB
Go
90 lines
2.3 KiB
Go
// Copyright 2022 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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"bytes"
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"image"
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"image/color"
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"math"
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"github.com/hajimehoshi/ebiten/v2"
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"github.com/hajimehoshi/ebiten/v2/text/v2"
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"github.com/hajimehoshi/ebiten/v2/vector"
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"golang.org/x/image/font/gofont/goregular"
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)
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var (
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whiteImage = ebiten.NewImage(3, 3)
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debugCircleImage *ebiten.Image
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whiteTextureImage = whiteImage.SubImage(image.Rect(1, 1, 2, 2)).(*ebiten.Image)
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faceSource *text.GoTextFaceSource
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)
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func init() {
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whiteImage.Fill(color.White)
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img := image.NewRGBA(image.Rect(0, 0, 20, 20))
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debugCircleImage = ebiten.NewImageFromImage(img)
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whiteImage.Fill(color.Black)
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faceSource, _ = text.NewGoTextFaceSource(bytes.NewReader(goregular.TTF))
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}
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type Game struct {
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counter int
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}
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func (g *Game) Update() error {
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g.counter++
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if g.counter > 16 {
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return ebiten.Termination
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}
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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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// Before the fix, some complex renderings with FillRuleEvenOdd might cause a DirectX error like this (#2138):
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// panic: directx: IDXGISwapChain4::Present failed: HRESULT(2289696773)
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screen.DrawImage(debugCircleImage, nil)
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op := &text.DrawOptions{}
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op.GeoM.Translate(100, 100)
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text.Draw(screen, "014678.,", &text.GoTextFace{
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Source: faceSource,
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Size: 12,
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}, op)
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p := vector.Path{}
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p.Arc(100, 100, 6, 0, 2*math.Pi, vector.Clockwise)
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filling, indicies := p.AppendVerticesAndIndicesForFilling(nil, nil)
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screen.DrawTriangles(filling, indicies, whiteTextureImage, &ebiten.DrawTrianglesOptions{
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FillRule: ebiten.FillRuleEvenOdd,
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})
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}
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func (g *Game) Layout(outsideWidth, outsideHeight int) (screenWidth, screenHeight int) {
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return 800, 600
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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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