79 lines
1.3 KiB
Go
79 lines
1.3 KiB
Go
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package assetstore
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import (
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"code.ur.gs/lupine/ordoor/internal/idx"
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)
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type Animation struct {
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Frames []*Sprite
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}
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func (a *AssetStore) AnimationsIndex() (*idx.Idx, error) {
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if a.idx != nil {
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return a.idx, nil
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}
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filename, err := a.lookup("WarHammer", "idx", "Idx")
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if err != nil {
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return nil, err
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}
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idx, err := idx.Load(filename)
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if err != nil {
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return nil, err
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}
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a.idx = idx
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return idx, nil
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}
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func (a *AssetStore) AnimationsObject() (*Object, error) {
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if a.aniObj != nil {
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return a.aniObj, nil
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}
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filename, err := a.lookup("WarHammer", "ani", "Anim")
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if err != nil {
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return nil, err
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}
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obj, err := a.ObjectByPath(filename)
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if err != nil {
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return nil, err
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}
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a.aniObj = obj
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return obj, nil
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}
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func (a *AssetStore) Animation(groupIdx, recIdx int) (*Animation, error) {
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idx, err := a.AnimationsIndex()
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if err != nil {
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return nil, err
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}
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obj, err := a.AnimationsObject()
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if err != nil {
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return nil, err
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}
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group := idx.Groups[groupIdx]
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if group.Spec.Count == 0 {
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return &Animation{}, nil
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}
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// rec := group.Records[recIdx]
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det := group.Details[recIdx]
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first := int(group.Spec.SpriteIdx) + int(det.FirstSprite)
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last := int(group.Spec.SpriteIdx) + int(det.LastSprite)
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count := last - first + 1
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sprites, err := obj.Sprites(first, count)
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if err != nil {
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return nil, err
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}
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return &Animation{Frames: sprites}, nil
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}
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