mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-12-26 03:38:55 +01:00
71 lines
1.4 KiB
Go
71 lines
1.4 KiB
Go
/*
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Copyright 2014 Hajime Hoshi
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package ebiten
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import (
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"os"
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"os/signal"
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"syscall"
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"time"
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)
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// A Game is the interface that represents a game.
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type Game interface {
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Update() error
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Draw(gr GraphicsContext) error
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}
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var currentUI *ui
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// Run runs the game.
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func Run(game Game, width, height, scale int, title string, fps int) error {
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ui, err := newUI(game, width, height, scale, title)
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if err != nil {
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return err
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}
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defer ui.terminate()
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currentUI = ui
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defer func() {
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currentUI = nil
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}()
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frameTime := time.Duration(int64(time.Second) / int64(fps))
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tick := time.Tick(frameTime)
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sigterm := make(chan os.Signal, 1)
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signal.Notify(sigterm, os.Interrupt, syscall.SIGTERM)
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for {
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ui.doEvents()
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if ui.isClosed() {
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return nil
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}
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select {
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default:
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if err := ui.drawGame(game); err != nil {
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return err
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}
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case <-tick:
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if err := game.Update(); err != nil {
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return err
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}
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case <-sigterm:
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return nil
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}
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}
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}
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