我可以根据Drawing Isometric game worlds上的公式绘制我的地图。但是如何根据它在地图图层div上的位置找到一个图块的x-y?
为了清楚,我的瓷砖左边的样式是1036px,顶部样式是865px。根据那些css属性,如何根据map找到tile的x和y位置?
瓷砖宽度为200,高度为100。
非常感谢。
我的javascript代码是这样的:
this.drawTiles = function(min_x, max_x, min_y, max_y) {
if (min_x < 0) min_x = 0;
if (min_y < 0) min_y = 0;
if (max_x < 0) max_x = thisObj.MAXSIZE;
if (max_y < 0) max_y = thisObj.MAXSIZE;
if (max_x > this.mapSize - 1) max_x = this.mapSize - 1;
if (max_y > this.mapSize - 1) max_y = this.mapSize - 1;
if (min_x < this.mapSize - 1) min_x = max_x - thisObj.MAXSIZE;
if (min_y < this.mapSize - 1) min_y = max_y - thisObj.MAXSIZE;
var appendLayer = thisObj.maplayer;
this.capMapDataObj.getTiles(min_x, max_x, min_y, max_y, function(JSONResp) {
var tiles = JSON.parse(JSONResp);
for (var x=min_x; x<max_x+1; x++) {
for (var y=min_y; y<max_y+1; y++) {
var tile = tiles[x][y];
var xpos = (y * thisObj.tile_width / 2) + (x * thisObj.tile_width / 2);
var ypos = (x * thisObj.tile_height / 2) - (y * thisObj.tile_height / 2);
var zin1 = 100 + parseInt(x) + parseInt(y);
var elem = '<div style="position:absolute;top:'+ypos+'px;left:'+xpos+'px;z-index:'+zin1+';width:200px;height:200px;background-image:url(images/'+tile[4]+');background-position:bottom;background-repeat:no-repeat;bottom:0px;text-align:center;" id="'+x+'_'+y+'"><div style="padding-top:140px;">'+x+' - '+y+'</div></div>\n';
if (document.getElementById(x+'_'+y) == undefined)
$(elem).appendTo(appendLayer);
}
}
});
}
因此xpos和ypos变量是每个tile图层的css位置。当我单击地图图层时,我想计算图块的等轴x-y坐标。
答案 0 :(得分:4)
我已经解决了这个问题。
tileX = (yPos / tile_height) + (xPos / tile_width);
tileY = (xPos / tile_width) - (yPos / tile_height);