Method allocSizes

core/sprite.go:166–183

allocSizes allocates the sprites by size to fixed set of images and layers

()

// allocSizes allocates the sprites by size to fixed set of images and layers
func (ss *Sprites) allocSizes() {
	ns := ss.Names.Len()
	szs := make([]image.Point, ns)
	idx := 0
	for _, kv := range ss.Names.Order {
		sp := kv.Value
		if sp.Geom.Size == (image.Point{}) {
			continue
		}
		szs[idx] = sp.Geom.Size
		idx++
	}
	if idx != ns {
		szs = szs[:idx]
	}
	ss.szAlloc.SetSizes(image.Point{4, 4}, system.MaxImageLayers, szs)
	ss.szAlloc.Alloc()
}

// Add adds sprite to list, and returns the image index and
// layer index within that for given sprite.  If name already