57 lines
1.1 KiB
Go
57 lines
1.1 KiB
Go
package game
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import (
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"log"
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"os"
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"code.rocketnine.space/tslocum/commandeuropa/component"
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"code.rocketnine.space/tslocum/commandeuropa/system"
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"code.rocketnine.space/tslocum/commandeuropa/world"
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"code.rocketnine.space/tslocum/gohan"
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"github.com/hajimehoshi/ebiten/v2"
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)
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type Game struct{}
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func NewGame() (*Game, error) {
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g := &Game{}
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gohan.AddSystem(&system.RenderEnvironment{})
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gohan.AddSystem(&system.RenderDebug{})
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// Create singleton entity for systems that run one time each tick.
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once := gohan.NewEntity()
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once.AddComponent(&component.Once{})
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return g, nil
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}
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func (g *Game) Layout(outsideWidth, outsideHeight int) (screenWidth, screenHeight int) {
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// Handle window resize.
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if outsideWidth != world.ScreenWidth || outsideHeight != world.ScreenHeight {
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world.ScreenWidth, world.ScreenHeight = outsideWidth, outsideHeight
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}
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return outsideWidth, outsideHeight
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}
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func (g *Game) Update() error {
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if ebiten.IsWindowBeingClosed() {
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g.Exit()
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return nil
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}
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return gohan.Update()
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}
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func (g *Game) Draw(screen *ebiten.Image) {
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err := gohan.Draw(screen)
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if err != nil {
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log.Fatal(err)
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}
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}
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func (g *Game) Exit() {
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os.Exit(0)
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}
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