// 世界場景的一些數(shù)據(jù)管理，如提供坐標(biāo)轉(zhuǎn)換之類的接口var WorldMapManager = function () {this.mapSize = null; // 地圖大小，像素this.curViewPos = null; // 當(dāng)前大地圖視野坐標(biāo)// 初始化世界地圖的數(shù)據(jù)this.init = function (mapSize, tileSize) {this.mapSize = {width : globalConsts.WorldMapSize.width * globalConsts.TileSize.width + globalConsts.TileSize.width / 2,height : globalConsts.WorldMapSize.height * ((globalConsts.TileSize.height - globalConsts.TileSize.hex) / 2 + globalConsts.TileSize.hex) + (globalConsts.TileSize.height - globalConsts.TileSize.hex) / 2};this.tileSize = globalConsts.TileSize;};// 大地圖坐標(biāo)轉(zhuǎn)成蜂窩cellthis.mapPosToTile = function (pos) {// 算出縮放成正六邊形后邊長 a 的值var a = this.tileSize.width / Math.sqrt(3);var x = pos.x, y = (this.mapSize.height - pos.y) / this.tileSize.height * a * 2 + a / 2; // 加 a / 2 是因?yàn)榫匦尉W(wǎng)格計(jì)算時(shí)會(huì)在底部增加 a / 2//位于矩形網(wǎng)格邊線上的三個(gè)CELL中心點(diǎn)var points = new Array(cc.p(0, 0), cc.p(0, 0), cc.p(0, 0));//當(dāng)前距離的平方var dist;// index:被捕獲的索引var i, index;//二分之根號(hào)3 邊長的平方，如果距離比它還小，就必然捕獲var g_MinDistance2 = Math.pow(a * Math.sqrt(3) / 2, 2);// 網(wǎng)格寬、高var g_unitx = a * Math.sqrt(3); //sqrt(3) * avar g_unity = a * 1.5; //a * 3 / 2// 網(wǎng)格對(duì)角線平方向上取整var mindist= Math.ceil(Math.pow(g_unitx, 2) + Math.pow(g_unity, 2));//計(jì)算出鼠標(biāo)點(diǎn)位于哪一個(gè)矩形網(wǎng)格中var cx = parseInt(x/g_unitx);var cy = parseInt(y/g_unity);points[0].x = parseInt(g_unitx * cx);points[1].x = parseInt(g_unitx * (cx+0.5));points[2].x = parseInt(g_unitx * (cx+1));//根據(jù)cy是否是偶數(shù)，決定三個(gè)點(diǎn)的縱坐標(biāo)if(cy % 2 == 0){//偶數(shù)時(shí)，三個(gè)點(diǎn)組成倒立三角points[0].y = points[2].y = parseInt(g_unity * cy);points[1].y = parseInt(g_unity * (cy+1));} else{//奇數(shù)時(shí)，三個(gè)點(diǎn)組成正立三角points[0].y = points[2].y = parseInt(g_unity * (cy+1));points[1].y = parseInt(g_unity * cy);}// 計(jì)算兩點(diǎn)間距離的平方function distance2(x1, y1, x2, y2){return ((x2-x1)*(x2-x1) + (y2-y1)*(y2-y1));}//現(xiàn)在找出鼠標(biāo)距離哪一個(gè)點(diǎn)最近for(i = 0; i < 3; ++i){//求出距離的平方dist = distance2(x, y, points[i].x, points[i].y);//如果已經(jīng)肯定被捕獲if(dist < g_MinDistance2){index = i;break;}//更新最小距離值和索引if(dist < mindist){mindist = dist;index = i;}}// x 第 0 個(gè)點(diǎn)的列值減 1 等于cell.x ( x 最左半格有 -1 值 )// cy 偶數(shù)時(shí)中間點(diǎn) + 1，奇數(shù)時(shí)兩邊點(diǎn) + 1，減 1 是因?yàn)槌跏紴榱擞?jì)算方便 y 補(bǔ)了 a / 2 ( y 最上半格 也會(huì)存在 -1 )return {x : cx - (index > 0? 0 : 1), y : cy + (cy % 2 + index % 2) % 2 - 1};};// 格子坐標(biāo)轉(zhuǎn)成地圖坐標(biāo)this.tilePosToMap = function (pos) {var tileCenter, xPixel, yPixel;tileCenter = (pos.x * this.tileSize.width) + this.tileSize.width / 2;xPixel = tileCenter + (pos.y % 2) * this.tileSize.width / 2;yPixel = this.tileSize.height / 2 + pos.y * (this.tileSize.height / 2 + this.tileSize.hex / 2);// 因?yàn)殄^點(diǎn)的關(guān)系，y值需要倒過來，這很重要yPixel = this.mapSize.height - yPixel;return cc.p(xPixel, yPixel);};// 獲取相鄰兩個(gè)六邊形格子中心點(diǎn)距離this.getAdjacentHexagonCenterPointDistance = function (isLeftAndRight) {if (isLeftAndRight) {return this.tileSize.width;} else {return Math.sqrt(Math.pow((this.tileSize.height + this.tileSize.hex) / 2, 2) + Math.pow(this.tileSize.width / 2, 2));}}; };// 單例WorldMapManager.sharedInstance = null;WorldMapManager.getInstance = function(){if (WorldMapManager.sharedInstance == null) {WorldMapManager.sharedInstance = new WorldMapManager();WorldMapManager.sharedInstance.init();}return WorldMapManager.sharedInstance; };

var tileCalculate = {// 兩六邊形 tilePos 獲取 無視阻擋的最短距離格子數(shù) 0~1 return 1getTwoTileDistance : function(lightTilePos, findTilePos) {var offX = 1, offY = 1; // 初始 findTilePos 在 lightTilePos 左上，往右下尋var tilePos, count;if (lightTilePos.y === findTilePos.y) {return Math.abs(lightTilePos.x - findTilePos.x);} else if (lightTilePos.x === findTilePos.x) {return Math.abs(lightTilePos.y - findTilePos.y);} else {count = 0;tilePos = {x:findTilePos.x, y:findTilePos.y};// 在右，往左尋if (lightTilePos.x < tilePos.x) {offX = -1;}// 在下，往上尋if (lightTilePos.y < tilePos.y) {offY = -1;}do {++count;tilePos.x += tilePos.y % 2 > 0 ? (offX > 0 ? offX : 0) : (offX < 0 ? offX : 0);tilePos.y += offY;} while (lightTilePos.x !== tilePos.x && lightTilePos.y !== tilePos.y);count += Math.abs(lightTilePos.x - tilePos.x) + Math.abs(lightTilePos.y - tilePos.y);return count;}},// 獲取格子周圍一圈，共六個(gè)格子的格子坐標(biāo)getAroundTilePos : function(tilePos) {if (tilePos.y % 2 > 0) {return [{x : tilePos.x, y : tilePos.y - 1}, {x : tilePos.x, y : tilePos.y + 1}, // 上下{x : tilePos.x - 1, y : tilePos.y}, {x : tilePos.x + 1, y : tilePos.y}, // 左右{x : tilePos.x + 1, y : tilePos.y - 1}, {x : tilePos.x + 1, y : tilePos.y + 1}]; // 右上，右下} else {return [{x : tilePos.x, y : tilePos.y - 1}, {x : tilePos.x, y : tilePos.y + 1}, // 上下{x : tilePos.x - 1, y : tilePos.y}, {x : tilePos.x + 1, y : tilePos.y}, // 左右{x : tilePos.x - 1, y : tilePos.y - 1}, {x : tilePos.x - 1, y : tilePos.y + 1}]; // 左上，左下}},// 獲取格子周圍兩圈，共十八個(gè)格子的格子坐標(biāo)getAroundTwoLapsTilePos : function(tilePos) {var i, j, tiles1, tiles2 = [];var tilePoses = {};// 把第一圈及第一圈每一個(gè)的第一圈都收集起來tiles1 = this.getAroundTilePos(tilePos);for (i in tiles1) {tiles2 = this.getAroundTilePos(tiles1[i]);for (j in tiles2) {if (tiles2[j].x !== tilePos.x || tiles2[j].y !== tilePos.y) {tilePoses[JSON.stringify(tiles2[j])] = tiles2[j];}}}return tilePoses;},};

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