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After defining tiles that collide on a Tilemap, you need to call Tilemap.generateCollisionData(layer) to populate the physics world with the data required. Debug.renderPhysicsBody updated to take camera location and body rotation into account. Body movement functions put back to velocity :) Updated to latest dev version of pixi and latest p2.js Updated docs
785 lines
20 KiB
HTML
785 lines
20 KiB
HTML
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<h1 class="page-title">Source: geom/Line.js</h1>
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<section>
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<article>
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<pre class="sunlight-highlight-javascript linenums">/**
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* @author Richard Davey <rich@photonstorm.com>
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* @copyright 2014 Photon Storm Ltd.
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* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
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*/
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/**
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* Creates a new Line object with a start and an end point.
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* @class Line
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* @classdesc Phaser - Line
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* @constructor
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* @param {number} [x1=0] - The x coordinate of the start of the line.
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* @param {number} [y1=0] - The y coordinate of the start of the line.
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* @param {number} [x2=0] - The x coordinate of the end of the line.
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* @param {number} [y2=0] - The y coordinate of the end of the line.
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* @return {Phaser.Line} This line object
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*/
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Phaser.Line = function (x1, y1, x2, y2) {
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x1 = x1 || 0;
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y1 = y1 || 0;
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x2 = x2 || 0;
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y2 = y2 || 0;
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/**
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* @property {Phaser.Point} start - The start point of the line.
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*/
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this.start = new Phaser.Point(x1, y1);
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/**
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* @property {Phaser.Point} end - The end point of the line.
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*/
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this.end = new Phaser.Point(x2, y2);
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};
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Phaser.Line.prototype = {
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/**
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* Sets the components of the Line to the specified values.
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* @method Phaser.Line#setTo
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* @param {number} [x1=0] - The x coordinate of the start of the line.
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* @param {number} [y1=0] - The y coordinate of the start of the line.
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* @param {number} [x2=0] - The x coordinate of the end of the line.
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* @param {number} [y2=0] - The y coordinate of the end of the line.
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* @return {Phaser.Line} This line object
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*/
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setTo: function (x1, y1, x2, y2) {
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this.start.setTo(x1, y1);
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this.end.setTo(x2, y2);
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return this;
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},
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/**
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* Sets the line to match the x/y coordinates of the two given sprites.
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* Can optionally be calculated from their center coordinates.
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* @method Phaser.Line#fromSprite
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* @param {Phaser.Sprite} startSprite - The coordinates of this Sprite will be set to the Line.start point.
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* @param {Phaser.Sprite} endSprite - The coordinates of this Sprite will be set to the Line.start point.
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* @param {boolean} [useCenter=true] - If true it will use startSprite.center.x, if false startSprite.x.
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* @return {Phaser.Line} This line object
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*/
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fromSprite: function (startSprite, endSprite, useCenter) {
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if (typeof useCenter === 'undefined') { useCenter = true; }
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if (useCenter)
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{
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return this.setTo(startSprite.center.x, startSprite.center.y, endSprite.center.x, endSprite.center.y);
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}
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else
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{
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return this.setTo(startSprite.x, startSprite.y, endSprite.x, endSprite.y);
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}
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},
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/**
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* Checks for intersection between this line and another Line.
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* If asSegment is true it will check for segment intersection. If asSegment is false it will check for line intersection.
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* Returns the intersection segment of AB and EF as a Point, or null if there is no intersection.
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*
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* @method Phaser.Line#intersects
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* @param {Phaser.Line} line - The line to check against this one.
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* @param {boolean} [asSegment=true] - If true it will check for segment intersection, otherwise full line intersection.
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* @param {Phaser.Point} [result] - A Point object to store the result in, if not given a new one will be created.
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* @return {Phaser.Point} The intersection segment of the two lines as a Point, or null if there is no intersection.
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*/
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intersects: function (line, asSegment, result) {
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return Phaser.Line.intersectsPoints(this.start, this.end, line.start, line.end, asSegment, result);
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},
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/**
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* Tests if the given coordinates fall on this line. See pointOnSegment to test against just the line segment.
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* @method Phaser.Line#pointOnLine
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* @param {number} x - The line to check against this one.
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* @param {number} y - The line to check against this one.
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* @return {boolean} True if the point is on the line, false if not.
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*/
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pointOnLine: function (x, y) {
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return ((x - this.start.x) * (this.end.y - this.end.y) === (this.end.x - this.start.x) * (y - this.end.y));
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},
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|
|
|
/**
|
|
* Tests if the given coordinates fall on this line and within the segment. See pointOnLine to test against just the line.
|
|
* @method Phaser.Line#pointOnSegment
|
|
* @param {number} x - The line to check against this one.
|
|
* @param {number} y - The line to check against this one.
|
|
* @return {boolean} True if the point is on the line and segment, false if not.
|
|
*/
|
|
pointOnSegment: function (x, y) {
|
|
|
|
var xMin = Math.min(this.start.x, this.end.x);
|
|
var xMax = Math.max(this.start.x, this.end.x);
|
|
var yMin = Math.min(this.start.y, this.end.y);
|
|
var yMax = Math.max(this.start.y, this.end.y);
|
|
|
|
return (this.pointOnLine(x, y) && (x >= xMin && x <= xMax) && (y >= yMin && y <= yMax));
|
|
|
|
}
|
|
|
|
};
|
|
|
|
/**
|
|
* @name Phaser.Line#length
|
|
* @property {number} length - Gets the length of the line segment.
|
|
* @readonly
|
|
*/
|
|
Object.defineProperty(Phaser.Line.prototype, "length", {
|
|
|
|
get: function () {
|
|
return Math.sqrt((this.end.x - this.start.x) * (this.end.x - this.start.x) + (this.end.y - this.start.y) * (this.end.y - this.start.y));
|
|
}
|
|
|
|
});
|
|
|
|
/**
|
|
* @name Phaser.Line#angle
|
|
* @property {number} angle - Gets the angle of the line.
|
|
* @readonly
|
|
*/
|
|
Object.defineProperty(Phaser.Line.prototype, "angle", {
|
|
|
|
get: function () {
|
|
return Math.atan2(this.end.x - this.start.x, this.end.y - this.start.y);
|
|
}
|
|
|
|
});
|
|
|
|
/**
|
|
* @name Phaser.Line#slope
|
|
* @property {number} slope - Gets the slope of the line (y/x).
|
|
* @readonly
|
|
*/
|
|
Object.defineProperty(Phaser.Line.prototype, "slope", {
|
|
|
|
get: function () {
|
|
return (this.end.y - this.start.y) / (this.end.x - this.start.x);
|
|
}
|
|
|
|
});
|
|
|
|
/**
|
|
* @name Phaser.Line#perpSlope
|
|
* @property {number} perpSlope - Gets the perpendicular slope of the line (x/y).
|
|
* @readonly
|
|
*/
|
|
Object.defineProperty(Phaser.Line.prototype, "perpSlope", {
|
|
|
|
get: function () {
|
|
return -((this.end.x - this.start.x) / (this.end.y - this.start.y));
|
|
}
|
|
|
|
});
|
|
|
|
/**
|
|
* Checks for intersection between two lines as defined by the given start and end points.
|
|
* If asSegment is true it will check for line segment intersection. If asSegment is false it will check for line intersection.
|
|
* Returns the intersection segment of AB and EF as a Point, or null if there is no intersection.
|
|
* Adapted from code by Keith Hair
|
|
*
|
|
* @method Phaser.Line.intersects
|
|
* @param {Phaser.Point} a - The start of the first Line to be checked.
|
|
* @param {Phaser.Point} b - The end of the first line to be checked.
|
|
* @param {Phaser.Point} e - The start of the second Line to be checked.
|
|
* @param {Phaser.Point} f - The end of the second line to be checked.
|
|
* @param {boolean} [asSegment=true] - If true it will check for segment intersection, otherwise full line intersection.
|
|
* @param {Phaser.Point} [result] - A Point object to store the result in, if not given a new one will be created.
|
|
* @return {Phaser.Point} The intersection segment of the two lines as a Point, or null if there is no intersection.
|
|
*/
|
|
Phaser.Line.intersectsPoints = function (a, b, e, f, asSegment, result) {
|
|
|
|
if (typeof asSegment === 'undefined') { asSegment = true; }
|
|
if (typeof result === 'undefined') { result = new Phaser.Point(); }
|
|
|
|
var a1 = b.y - a.y;
|
|
var a2 = f.y - e.y;
|
|
var b1 = a.x - b.x;
|
|
var b2 = e.x - f.x;
|
|
var c1 = (b.x * a.y) - (a.x * b.y);
|
|
var c2 = (f.x * e.y) - (e.x * f.y);
|
|
var denom = (a1 * b2) - (a2 * b1);
|
|
|
|
if (denom === 0)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
result.x = ((b1 * c2) - (b2 * c1)) / denom;
|
|
result.y = ((a2 * c1) - (a1 * c2)) / denom;
|
|
|
|
if (asSegment)
|
|
{
|
|
if (Math.pow((result.x - b.x) + (result.y - b.y), 2) > Math.pow((a.x - b.x) + (a.y - b.y), 2))
|
|
{
|
|
return null;
|
|
}
|
|
|
|
if (Math.pow((result.x - a.x) + (result.y - a.y), 2) > Math.pow((a.x - b.x) + (a.y - b.y), 2))
|
|
{
|
|
return null;
|
|
}
|
|
|
|
if (Math.pow((result.x - f.x) + (result.y - f.y), 2) > Math.pow((e.x - f.x) + (e.y - f.y), 2))
|
|
{
|
|
return null;
|
|
}
|
|
|
|
if (Math.pow((result.x - e.x) + (result.y - e.y), 2) > Math.pow((e.x - f.x) + (e.y - f.y), 2))
|
|
{
|
|
return null;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
|
|
};
|
|
|
|
/**
|
|
* Checks for intersection between two lines.
|
|
* If asSegment is true it will check for segment intersection.
|
|
* If asSegment is false it will check for line intersection.
|
|
* Returns the intersection segment of AB and EF as a Point, or null if there is no intersection.
|
|
* Adapted from code by Keith Hair
|
|
*
|
|
* @method Phaser.Line.intersects
|
|
* @param {Phaser.Line} a - The first Line to be checked.
|
|
* @param {Phaser.Line} b - The second Line to be checked.
|
|
* @param {boolean} [asSegment=true] - If true it will check for segment intersection, otherwise full line intersection.
|
|
* @param {Phaser.Point} [result] - A Point object to store the result in, if not given a new one will be created.
|
|
* @return {Phaser.Point} The intersection segment of the two lines as a Point, or null if there is no intersection.
|
|
*/
|
|
Phaser.Line.intersects = function (a, b, asSegment, result) {
|
|
|
|
return Phaser.Line.intersectsPoints(a.start, a.end, b.start, b.end, asSegment, result);
|
|
|
|
};
|
|
</pre>
|
|
</article>
|
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</section>
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<footer>
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<span class="copyright">
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|
Phaser Copyright © 2012-2014 Photon Storm Ltd.
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<br />
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<span class="jsdoc-message">
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Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-dev</a>
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on Tue Feb 18 2014 03:01:17 GMT-0000 (GMT) using the <a href="https://github.com/terryweiss/docstrap">DocStrap template</a>.
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