ebiten/run.go

45 lines
1.2 KiB
Go

// Copyright 2014 Hajime Hoshi
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package ebiten
// Run runs the game.
// f is a function which is called at every frame.
// The argument (*Image) is the render target that represents the screen.
//
// This function must be called from the main thread.
func Run(f func(*Image) error, width, height, scale int, title string) error {
err := startUI(width, height, scale, title)
if err != nil {
return err
}
ui := currentUI
defer ui.terminate()
currentUI = ui
defer func() {
currentUI = nil
}()
for {
ui.doEvents()
if ui.isClosed() {
return nil
}
if err := ui.draw(f); err != nil {
return err
}
}
}