绘制2d分层地图javascript



我正在用javascript创建一个2d RPG游戏,使用画布,有点像browserquest。

我知道如何绘制一个简单的二维数组来显示一个单层的贴图到画布。

但是当玩家四处移动时,为了获得更好的效果,我希望能够在tile中创建一个分层的tile地图。我在考虑这些图层:

背景层保存地面信息和草,岩石等

player/object层保存播放器位置和对象位置的信息。

碰撞层,用于保存用户将发生和不会发生碰撞的位置。

前景层用于保存玩家可以移动的贴图。树顶、屋顶等

听起来可以吗?

我的问题:

如何加载地图数据保存为JSON从平铺地图编辑器?然后我如何使用这些信息来显示它在画布上?

我该如何检查玩家关卡的图层细节?例如,当它们在不同的层中时,我该如何检查碰撞?

提前感谢您的帮助

汤姆

编辑:我已经创建了一个json平铺图从使用TILED:

{ "height":15,
 "layers":[
    {
     "data":[79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 28, 29, 30, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 28, 29, 30, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 28, 29, 30, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 28, 29, 30, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 12, 13, 13, 13, 13, 111, 29, 30, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 28, 29, 29, 29, 29, 29, 29, 30, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 28, 29, 128, 45, 45, 45, 45, 46, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 28, 29, 30, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 28, 29, 30, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 12, 13, 13, 13, 13, 13, 111, 29, 112, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 79, 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 79, 28, 29, 128, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 79, 28, 29, 30, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 28, 29, 30, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 28, 29, 30, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79],
     "height":15,
     "name":"background",
     "opacity":1,
     "type":"tilelayer",
     "visible":true,
     "width":20,
     "x":0,
     "y":0
    }, 
    {
     "data":[0, 0, 0, 0, 0, 149, 150, 151, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 165, 166, 167, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 168, 0, 0, 0, 181, 182, 183, 0, 0, 0, 0, 0, 0, 0, 0, 168, 0, 0, 0, 0, 0, 0, 0, 222, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 237, 0, 0, 0, 245, 246, 247, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 152, 0, 0, 0, 168, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 152, 222, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 152, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 152, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 168, 0, 0, 0, 0, 0, 0, 0, 0, 0, 149, 150, 151, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 165, 166, 167, 0, 0, 0, 152, 0, 237, 0, 0, 0, 0, 0, 0, 245, 246, 247, 0, 168, 181, 182, 183],
     "height":15,
     "name":"background_objects",
     "opacity":1,
     "type":"tilelayer",
     "visible":true,
     "width":20,
     "x":0,
     "y":0
    }, 
    {
     "height":15,
     "name":"collisions",
     "objects":[
            {
             "height":32,
             "name":"",
             "properties":
                {
                },
             "type":"",
             "visible":true,
             "width":100,
             "x":-3,
             "y":192
            }, 
            {
             "height":31,
             "name":"",
             "properties":
                {
                },
             "type":"",
             "visible":true,
             "width":32,
             "x":159,
             "y":448
            }, 
            {
             "height":30,
             "name":"",
             "properties":
                {
                },
             "type":"",
             "visible":true,
             "width":94,
             "x":385,
             "y":448
            }, 
            {
             "height":31,
             "name":"",
             "properties":
                {
                },
             "type":"",
             "visible":true,
             "width":33,
             "x":511,
             "y":160
            }, 
            {
             "height":27,
             "name":"",
             "properties":
                {
                },
             "type":"",
             "visible":true,
             "width":32,
             "x":320,
             "y":258
            }, 
            {
             "height":30,
             "name":"",
             "properties":
                {
                },
             "type":"",
             "visible":true,
             "width":31,
             "x":128,
             "y":97
            }],
     "opacity":1,
     "type":"objectgroup",
     "visible":true,
     "width":20,
     "x":0,
     "y":0
    }, 
    {
     "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 206, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 197, 198, 199, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 213, 214, 215, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 221, 0, 0, 0, 229, 230, 231, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 206, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 197, 198, 199, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 213, 214, 215, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 221, 0, 0, 0, 0, 0, 0, 229, 230, 231, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
     "height":15,
     "name":"foreground",
     "opacity":1,
     "type":"tilelayer",
     "visible":true,
     "width":20,
     "x":0,
     "y":0
    }],
 "orientation":"orthogonal",
 "properties":
{
},
 "tileheight":32,
 "tilesets":[
    {
     "firstgid":1,
     "image":"../../../../../../../xampp/htdocs/DIS/images/mountain_landscape_23.png",
     "imageheight":512,
     "imagewidth":512,
     "margin":0,
     "name":"level_1",
     "properties":
        {
        },
     "spacing":0,
     "tileheight":32,
     "tilewidth":32
    }],
 "tilewidth":32,
 "version":1,
 "width":20
 }

javascript框架"Melon JS"可以导入tile TMX贴图。最好使用类似的东西(而不是重新发明轮子)。这里有一个链接:

http://www.melonjs.org/

@Chris Nash谢谢你的建议!

我找到了一个关于使用JSON从tile加载分层平铺图的教程,我想我将遵循。

如果有人wJson加载器平铺地图编辑器

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