70 lines
1.3 KiB
Go
70 lines
1.3 KiB
Go
package conv
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import (
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"github.com/hajimehoshi/ebiten"
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"ur.gs/ordoor/internal/data"
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)
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// Important conversions:
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//
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// * Width & height now stored using int
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// * Colour data is now 32-bit rather than using a palette
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type Sprite struct {
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Width int
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Height int
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Image *ebiten.Image
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}
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type Object struct {
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Name string
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Sprites []*Sprite
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}
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func MapByName(objects []*Object) map[string]*Object {
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out := make(map[string]*Object, len(objects))
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for _, obj := range objects {
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out[obj.Name] = obj
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}
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return out
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}
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func ConvertObject(rawObj *data.Object, name string) (*Object, error) {
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out := &Object{
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Name: name,
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Sprites: make([]*Sprite, len(rawObj.Sprites)),
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}
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for i, rawSpr := range rawObj.Sprites {
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w := int(rawSpr.Width)
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h := int(rawSpr.Height)
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data := spriteToData(name, i, rawSpr)
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image, err := ebiten.NewImage(w, h, ebiten.FilterDefault)
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if err != nil {
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return nil, err
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}
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_ = image.ReplacePixels(data)
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out.Sprites[i] = &Sprite{Width: w, Height: h, Image: image}
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}
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return out, nil
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}
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func spriteToData(name string, idx int, sprite *data.Sprite) []byte {
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width := int(sprite.Width)
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height := int(sprite.Height)
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out := make([]byte, 0, 4*width*height)
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for _, palette := range sprite.Data {
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color := data.ColorPalette[int(palette)]
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out = append(out, color.R, color.G, color.B, color.A)
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}
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return out
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}
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