100 lines
3.4 KiB
TypeScript
100 lines
3.4 KiB
TypeScript
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module es {
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export class TmxLayer implements ITmxLayer {
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public map: TmxMap;
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public name: string;
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public opacity: number;
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public offsetX: number;
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public offsetY: number;
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public properties: Map<string, string>;
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public visible: boolean;
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public get offset(): Vector2 {
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return new Vector2(this.offsetX, this.offsetY);
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}
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/**
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* 这一层tile的宽度。对于固定大小的地图，始终与地图宽度相同。
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*/
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public width: number;
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/**
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* 这一层的tile高度。对于固定大小的地图，始终与地图高度相同。
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*/
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public height: number;
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public tiles: TmxLayerTile[];
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/**
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* 回带有gid的TmxLayerTile。这是一个慢查询，所以要缓存它
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* @param gid
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*/
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public getTileWithGid(gid: number){
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for (let i = 0; i < this.tiles.length; i ++){
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if (this.tiles[i] && this.tiles[i].gid == gid)
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return this.tiles[i];
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}
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return null;
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}
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}
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export class TmxLayerTile {
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public static readonly FLIPPED_HORIZONTALLY_FLAG = 0x80000000;
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public static readonly FLIPPED_VERTICALLY_FLAG = 0x40000000;
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public static readonly FLIPPED_DIAGONALLY_FLAG = 0x20000000;
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public tileset: TmxTileset;
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public gid: number;
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public x: number;
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public y: number;
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public get position(): Vector2{
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return new Vector2(this.x, this.y);
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}
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public horizontalFlip: boolean;
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public verticalFlip: boolean;
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public diagonalFlip: boolean;
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public _tilesetTileIndex?: number;
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/**
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* 获取此TmxLayerTile(如果存在)的TmxTilesetTile
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* TmxTilesetTile只存在于动态的tiles和带有附加属性的tiles中。
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*/
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public get tilesetTile(): TmxTilesetTile {
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if (this._tilesetTileIndex == undefined){
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this._tilesetTileIndex = -1;
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if (this.tileset.firstGid <= this.gid){
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let tilesetTile = this.tileset.tiles.get(this.gid - this.tileset.firstGid);
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if (tilesetTile){
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this._tilesetTileIndex = this.gid - this.tileset.firstGid;
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}
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}
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}
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if (this._tilesetTileIndex < 0)
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return null;
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return this.tileset.tiles.get(this._tilesetTileIndex);
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}
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constructor(map: TmxMap, id: number, x: number, y: number){
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this.x = x;
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this.y = y;
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let rawGid = id;
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// 扫描平铺反转位标志
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let flip: boolean;
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flip = (rawGid & TmxLayerTile.FLIPPED_HORIZONTALLY_FLAG) != 0;
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this.horizontalFlip = flip;
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flip = (rawGid & TmxLayerTile.FLIPPED_VERTICALLY_FLAG) != 0;
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this.verticalFlip = flip;
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flip = (rawGid & TmxLayerTile.FLIPPED_DIAGONALLY_FLAG) != 0;
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this.diagonalFlip = flip;
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// 零位标志
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rawGid &= ~(TmxLayerTile.FLIPPED_HORIZONTALLY_FLAG | TmxLayerTile.FLIPPED_VERTICALLY_FLAG | TmxLayerTile.FLIPPED_DIAGONALLY_FLAG);
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// 将GID保存
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this.gid = rawGid;
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this.tileset = map.getTilesetForTileGid(this.gid);
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}
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}
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}
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