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| define(["require", "exports"], function (require, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var Quad = (function () {
function Quad(left, top, width, height, spatialSearching) {
this.objects = [];
this.left = left;
this.top = top;
this.width = width;
this.height = height;
this.spatialSearch = spatialSearching;
}
Quad.prototype.findQuads = function (currentViewPort, quads) {
if (this.first != null && this.first.isIntersect(currentViewPort)) {
this.first.findQuads(currentViewPort, quads);
}
if (this.second != null && this.second.isIntersect(currentViewPort)) {
this.second.findQuads(currentViewPort, quads);
}
if (this.third != null && this.third.isIntersect(currentViewPort)) {
this.third.findQuads(currentViewPort, quads);
}
if (this.fourth != null && this.fourth.isIntersect(currentViewPort)) {
this.fourth.findQuads(currentViewPort, quads);
}
if (this.objects.length > 0) {
quads.push(this);
}
};
Quad.prototype.isIntersect = function (t) {
if (this.left + this.width < t.left || this.top + this.height < t.top || this.left > t.right || this.top > t.bottom) {
return false;
}
return true;
};
Quad.prototype.selectQuad = function () {
var target = null;
var current = this;
var quadSet;
while (current != null) {
quadSet = current.getQuad(target);
current = quadSet.source;
target = quadSet.target || target;
}
return target;
};
Quad.prototype.getQuad = function (target) {
target = null;
var halfWidth = this.width / 2;
var halfHeight = this.height / 2;
if (halfWidth >= 1000 && halfHeight >= 1000) {
var xCenter = this.left + halfWidth;
var yCenter = this.top + halfHeight;
if (this.spatialSearch.childRight <= xCenter) {
if (this.spatialSearch.childBottom <= yCenter) {
if (!this.first) {
var newQuad = new Quad(this.left, this.top, halfWidth, halfHeight, this.spatialSearch);
newQuad.parent = this;
this.first = newQuad;
}
return { source: this.first };
}
if (this.spatialSearch.childTop >= yCenter) {
if (!this.third) {
var newQuad = new Quad(this.left, yCenter, halfWidth, halfHeight, this.spatialSearch);
newQuad.parent = this;
this.third = newQuad;
}
return { source: this.third };
}
}
else if (this.spatialSearch.childLeft >= xCenter) {
if (this.spatialSearch.childBottom <= yCenter) {
if (!this.second) {
var newQuad = new Quad(xCenter, this.top, halfWidth, halfHeight, this.spatialSearch);
newQuad.parent = this;
this.second = newQuad;
}
return { source: this.second };
}
if (this.spatialSearch.childTop >= yCenter) {
if (!this.fourth) {
var newQuad = new Quad(xCenter, yCenter, halfWidth, halfHeight, this.spatialSearch);
newQuad.parent = this;
this.fourth = newQuad;
}
return { source: this.fourth };
}
}
}
target = this;
this.objects.push(this.spatialSearch.childNode);
return { target: this };
};
Quad.prototype.isContained = function () {
if (this.spatialSearch.childLeft >= this.left && this.spatialSearch.childRight <= this.left + this.width &&
this.spatialSearch.childTop >= this.top && this.spatialSearch.childBottom <= this.top + this.height) {
return true;
}
return false;
};
Quad.prototype.addIntoAQuad = function (node) {
var quadAddition = {};
this.spatialSearch.setCurrentNode(node);
var quad = null;
while (!quadAddition.isAdded) {
quadAddition = this.spatialSearch.parentQuad.add(quad);
quad = quadAddition.quad;
}
return quad;
};
Quad.prototype.add = function (quad) {
quad = null;
if (this.isContained()) {
quad = this.selectQuad();
return { isAdded: true, quad: quad };
}
else {
var newParent = void 0;
var isempty = this.objects.length === 0 && !this.first && !this.second && !this.third &&
!this.fourth;
var newWidth = this.width * 2;
var newHeight = this.height * 2;
if (this.spatialSearch.childLeft < this.left) {
if (this.spatialSearch.childTop < this.top) {
newParent = new Quad(this.left - this.width, this.top - this.height, newWidth, newHeight, this.spatialSearch);
if (!isempty) {
newParent.fourth = this;
}
}
else {
newParent = new Quad(this.left - this.width, this.top, newWidth, newHeight, this.spatialSearch);
if (!isempty) {
newParent.second = this;
}
}
}
else if (this.spatialSearch.childTop < this.top) {
newParent = new Quad(this.left, this.top - this.height, newWidth, newHeight, this.spatialSearch);
if (!isempty) {
newParent.third = this;
}
}
else {
newParent = new Quad(this.left, this.top, newWidth, newHeight, this.spatialSearch);
if (!isempty) {
newParent.first = this;
}
}
this.parent = newParent;
this.spatialSearch.parentQuad = newParent;
return { isAdded: false, quad: quad };
}
};
return Quad;
}());
exports.Quad = Quad;
});
|