Class TexPacker: private lastTextureId: private textures: private bigTextures: private texturesPosition: private canvas: private c2d: private x: private y: private curHeight: private gfx: private padding: addSingle(img: ImageSource) => [Texture, Quad, number] add(img: ImageSource) => [Texture, Quad, number] free() => void remove(packerId: number) => void