我正在尝试编写一个 OBJMesh 模型阅读器并且我已经设置了 OBJMesh 类,但是当我尝试通过创建 OBJMesh 对象并调用 get 函数来检索数组中存储的数据时,它并没有这样做。
这是代码
OBJMesh.js
function OBJMesh(file)
{
this.modelVertex = [];
this.modelColor = [];
this.init = false;
var rawFile = new XMLHttpRequest();
rawFile.open("GET", file, true);
var objmesh = this;
rawFile.onreadystatechange = function ()
{
if(rawFile.readyState == 4)
{
if(rawFile.status === 200 || rawFile.status === 0)
{
var allText = rawFile.responseText;
var lines = allText.split("\n");
for(var i = 0; i < lines.length; i ++)
{
var lineData = lines[i];
var lineString = lineData.split(" ");
if(lineString[0] === "v")
{
var x = parseFloat(lineString[1]);
var y = parseFloat(lineString[2]);
var z = parseFloat(lineString[3]);
objmesh.modelVertex.push(x);
objmesh.modelVertex.push(y);
objmesh.modelVertex.push(z);
objmesh.modelColor.push(0.0);
objmesh.modelColor.push(0.0);
objmesh.modelColor.push(0.0);
objmesh.modelColor.push(1.0);
//document.getElementById("textSection").innerHTML = objmesh.modelVertex[0];
}
}
}
}
objmesh.init = true;
}
rawFile.send();
}
OBJMesh.prototype.getModelVertex = function ()
{
return this.modelVertex;
};
OBJMesh.prototype.getModelColor = function ()
{
return this.modelColor;
};
OBJMesh.prototype.getInit = function ()
{
return this.init;
};
main.js
var cubeModel;
function main()
{
cubeModel = new OBJMesh("file:///Users/DannyChen/Desktop/3DHTMLGame/cube.obj");
while(cubeModel.getInit() === false)
{
//wait for it
}
var cubeVertex = cubeModel.getModelVertex();
document.getElementById("textSection").innerHTML = cubeVertex[0];
}
它只是不断打印出“未定义”。为什么?我该如何解决?