mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-09-20 13:22:19 +02:00
69 lines
1.5 KiB
Go
69 lines
1.5 KiB
Go
// Copyright 2017 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
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package main
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import (
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"log"
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"strings"
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"github.com/hajimehoshi/ebiten"
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"github.com/hajimehoshi/ebiten/ebitenutil"
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)
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var (
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text = "Type on the keyboard:\n"
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counter = 0
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bsPrevPressed = false
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)
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func update(screen *ebiten.Image) error {
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text += string(ebiten.InputChars())
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ss := strings.Split(text, "\n")
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if len(ss) > 10 {
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text = strings.Join(ss[len(ss)-10:], "\n")
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}
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if ebiten.IsKeyPressed(ebiten.KeyEnter) && !strings.HasSuffix(text, "\n") {
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text += "\n"
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}
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bsPressed := ebiten.IsKeyPressed(ebiten.KeyBackspace)
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if !bsPrevPressed && bsPressed {
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if len(text) >= 1 {
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text = text[:len(text)-1]
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}
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}
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bsPrevPressed = bsPressed
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counter++
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if ebiten.IsRunningSlowly() {
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return nil
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}
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t := text
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if counter%60 < 30 {
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t += "_"
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}
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ebitenutil.DebugPrint(screen, t)
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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, 320, 240, 2.0, "Typewriter (Ebiten Demo)"); err != nil {
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log.Fatal(err)
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}
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}
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