ordoor/internal/conv/object.go

package conv

import (
	"github.com/hajimehoshi/ebiten"

	"code.ur.gs/lupine/ordoor/internal/data"
)

// Important conversions:
//
//   * Width & height now stored using int
//   * Colour data is now 32-bit rather than using a palette
type Sprite struct {
	XOffset int
	YOffset int
	Width   int
	Height  int

	Image *ebiten.Image
}

type Object struct {
	Name    string
	Sprites []*Sprite
}

func MapByName(objects []*Object) map[string]*Object {
	out := make(map[string]*Object, len(objects))

	for _, obj := range objects {
		out[obj.Name] = obj
	}

	return out
}

func ConvertObject(rawObj *data.Object, name string) (*Object, error) {
	out := &Object{
		Name:    name,
		Sprites: make([]*Sprite, len(rawObj.Sprites)),
	}

	for i, rawSpr := range rawObj.Sprites {
		ebitenImage, err := ebiten.NewImageFromImage(rawSpr.ToImage(), ebiten.FilterDefault)
		if err != nil {
			return nil, err
		}

		out.Sprites[i] = &Sprite{
			XOffset: int(rawSpr.XOffset),
			YOffset: int(rawSpr.YOffset),
			Width:   int(rawSpr.Width),
			Height:  int(rawSpr.Height),
			Image:   ebitenImage,
		}
	}

	return out, nil
}