#28 新增tiledMapRenderer用于渲染tiledmap
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yhh
162
source/src/Tiled/TiledRendering.ts
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162
source/src/Tiled/TiledRendering.ts
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module es {
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export class TiledRendering {
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public static renderMap(map: TmxMap, position: Vector2, scale: Vector2, layerDepth: number) {
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map.layers.forEach(layer => {
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if (layer instanceof TmxLayer && layer.visible) {
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this.renderLayer(layer, position, scale, layerDepth);
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} else if (layer instanceof TmxImageLayer && layer.visible) {
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this.renderImageLayer(layer, position, scale, layerDepth);
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} else if (layer instanceof TmxGroup && layer.visible) {
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this.renderGroup(layer, position, scale, layerDepth);
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} else if (layer instanceof TmxObjectGroup && layer.visible) {
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this.renderObjectGroup(layer, position, scale, layerDepth);
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}
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});
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}
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public static renderLayer(layer: TmxLayer, position: Vector2, scale: Vector2, layerDepth: number) {
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if (!layer.visible)
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return;
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let tileWidth = layer.map.tileWidth * scale.x;
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let tileHeight = layer.map.tileHeight * scale.y;
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let color = new Color(0, 0, 0, layer.opacity * 255);
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for (let i = 0; i < layer.tiles.length; i ++){
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let tile = layer.tiles[i];
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if (!tile)
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continue;
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this.renderTile(tile, position, scale, tileWidth, tileHeight, color, layerDepth);
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}
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}
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public static renderImageLayer(layer: TmxImageLayer, position: Vector2, scale: Vector2, layerDepth: number) {
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if (!layer.visible)
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return;
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let color = new Color(0, 0, 0, layer.opacity * 255);
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let pos = Vector2.add(position, new Vector2(layer.offsetX, layer.offsetY).multiply(scale));
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// TODO: draw
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}
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public static renderObjectGroup(objGroup: TmxObjectGroup, position: Vector2, scale: Vector2, layerDepth: number) {
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if (!objGroup.visible)
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return;
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for (let object in objGroup.objects) {
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let obj = objGroup.objects.get(object);
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if (!obj.visible)
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continue;
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// TODO: debug draw
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let pos = Vector2.add(position, new Vector2(obj.x, obj.y).multiply(scale));
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switch (obj.objectType) {
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case TmxObjectType.basic:
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// TODO: draw
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break;
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case TmxObjectType.point:
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let size = objGroup.map.tileWidth * 0.5;
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pos.x -= size * 0.5;
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pos.y -= size * 0.5;
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// TODO: draw
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break;
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case TmxObjectType.tile:
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let tileset = objGroup.map.getTilesetForTileGid(obj.tile.gid);
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let sourceRect = tileset.tileRegions[obj.tile.gid];
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pos.y -= obj.tile.tilesetTile.image.height;
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// TODO: draw
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break;
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case TmxObjectType.ellipse:
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pos = new Vector2(obj.x + obj.width * 0.5, obj.y + obj.height * 0.5).multiply(scale);
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// TODO: draw
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break;
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case TmxObjectType.polygon:
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case TmxObjectType.polyline:
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let points = [];
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for (let i = 0; i < obj.points.length; i++)
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points[i] = Vector2.multiply(obj.points[i], scale);
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// TODO: draw
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break;
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case TmxObjectType.text:
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// TODO: draw
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break;
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default:
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// TODO: debug draw
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break;
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}
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}
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}
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public static renderGroup(group: TmxGroup, position: Vector2, scale: Vector2, layerDepth: number) {
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if (!group.visible)
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return;
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group.layers.forEach(layer => {
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if (layer instanceof TmxGroup) {
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this.renderGroup(layer, position, scale, layerDepth);
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}
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if (layer instanceof TmxObjectGroup) {
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this.renderObjectGroup(layer, position, scale,layerDepth);
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}
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if (layer instanceof TmxLayer){
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this.renderLayer(layer, position, scale, layerDepth);
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}
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if (layer instanceof TmxImageLayer){
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this.renderImageLayer(layer, position, scale, layerDepth);
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}
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});
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}
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public static renderTile(tile: TmxLayerTile, position: Vector2, scale: Vector2, tileWidth: number, tileHeight: number, color: Color, layerDepth: number) {
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let gid = tile.gid;
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// 动画tiles(以及来自图像tile的tiles)将位于Tileset本身内，位于单独的TmxTilesetTile对象中，不要与我们在此循环中处理的TmxLayerTiles混淆
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let tilesetTile = tile.tilesetTile;
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if (tilesetTile && tilesetTile.animationFrames.length > 0)
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gid = tilesetTile.currentAnimationFrameGid;
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let sourceRect = tile.tileset.tileRegions.get(gid);
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// 对于y位置，我们需要考虑瓦片是否大于瓦片的高度和移位。
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// tiled使用左下角的坐标系统，而egret则使用左上角的坐标系统
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let tx = tile.x * tileWidth;
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let ty = tile.y * tileHeight;
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let rotation = 0;
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if (tile.diagonalFlip) {
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if (tile.horizontalFlip && tile.verticalFlip) {
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rotation = MathHelper.PiOver2;
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tx += tileHeight + (sourceRect.height * scale.y - tileHeight);
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ty -= (sourceRect.width * scale.x - tileWidth);
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} else if (tile.horizontalFlip) {
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rotation = -MathHelper.PiOver2;
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ty += tileHeight;
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} else if (tile.verticalFlip) {
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rotation = MathHelper.PiOver2;
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tx += tileWidth + (sourceRect.height * scale.y - tileHeight);
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ty += (tileWidth - sourceRect.width * scale.x);
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} else {
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rotation = -MathHelper.PiOver2;
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ty += tileHeight;
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}
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}
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// 如果我们没有旋转(对角线翻转)移动y轴
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if (rotation == 0)
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ty += (tileHeight - sourceRect.height * scale.y);
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let pos = new Vector2(tx, ty).add(position);
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if (tile.tileset.image) {
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// TODO: draw
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} else {
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// TODO: draw
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}
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}
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}
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}
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