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internal/ui: better panic message at ReadPixels before RunGame

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Closes #2979
This commit is contained in:
Hajime Hoshi 2024-05-03 16:35:39 +09:00
parent 35e29a29e7
commit 903ab6727b
1 changed files with 4 additions and 0 deletions
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4
internal/ui/ui.go
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@ -126,6 +126,10 @@ func newUserInterface() (*UserInterface, error) {
} }
func (u *UserInterface) readPixels(mipmap *mipmap.Mipmap, pixels []byte, region image.Rectangle) error { func (u *UserInterface) readPixels(mipmap *mipmap.Mipmap, pixels []byte, region image.Rectangle) error {
if !u.running.Load() {
panic("ui: ReadPixels cannot be called before the game starts")
}
ok, err := mipmap.ReadPixels(u.graphicsDriver, pixels, region) ok, err := mipmap.ReadPixels(u.graphicsDriver, pixels, region)
if err != nil { if err != nil {
return err return err