mirror of
https://github.com/hajimehoshi/ebiten.git
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116 lines
2.3 KiB
Go
116 lines
2.3 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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// +build example jsgo
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package main
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import (
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"image/color"
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"log"
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"github.com/hajimehoshi/ebiten"
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"github.com/hajimehoshi/ebiten/vector"
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)
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const (
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screenWidth = 640
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screenHeight = 480
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)
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func drawEbitenText(screen *ebiten.Image) {
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var path vector.Path
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// E
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path.MoveTo(60, 20)
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path.LineTo(20, 20)
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path.LineTo(20, 60)
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path.LineTo(60, 60)
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path.MoveTo(20, 40)
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path.LineTo(60, 40)
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// B
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path.MoveTo(110, 20)
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path.LineTo(80, 20)
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path.LineTo(80, 60)
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path.LineTo(110, 60)
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path.LineTo(120, 50)
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path.LineTo(110, 40)
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path.LineTo(120, 30)
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path.LineTo(110, 20)
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path.LineTo(80, 20)
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path.MoveTo(80, 40)
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path.LineTo(110, 40)
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// I
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path.MoveTo(140, 20)
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path.LineTo(140, 60)
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// T
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path.MoveTo(160, 20)
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path.LineTo(200, 20)
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path.MoveTo(180, 20)
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path.LineTo(180, 60)
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// E
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path.MoveTo(260, 20)
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path.LineTo(220, 20)
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path.LineTo(220, 60)
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path.LineTo(260, 60)
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path.MoveTo(220, 40)
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path.LineTo(260, 40)
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// N
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path.MoveTo(280, 60)
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path.LineTo(280, 20)
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path.LineTo(320, 60)
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path.LineTo(320, 20)
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op := &vector.DrawPathOptions{}
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op.LineWidth = 8
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op.StrokeColor = color.RGBA{0xdb, 0x56, 0x20, 0xff}
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path.Draw(screen, op)
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}
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func drawLines(screen *ebiten.Image) {
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var path vector.Path
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path.MoveTo(20, 80+float32(counter%320)/4)
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path.LineTo(60, 120)
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path.LineTo(20, 160-float32(counter%320)/4)
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op := &vector.DrawPathOptions{}
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op.LineWidth = 16
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op.StrokeColor = color.White
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path.Draw(screen, op)
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}
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var counter = 0
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func update(screen *ebiten.Image) error {
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counter++
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if ebiten.IsDrawingSkipped() {
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return nil
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}
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drawEbitenText(screen)
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drawLines(screen)
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return nil
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}
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func main() {
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if err := ebiten.Run(update, screenWidth, screenHeight, 1, "Vector (Ebiten Demo)"); err != nil {
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log.Fatal(err)
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}
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}
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