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photonstorm
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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
981 lines
25 KiB
HTML
981 lines
25 KiB
HTML
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<h1 class="page-title">Source: geom/Point.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 Point. If you pass no parameters a Point is created set to (0,0).
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* @class Phaser.Point
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* @classdesc The Point object represents a location in a two-dimensional coordinate system, where x represents the horizontal axis and y represents the vertical axis.
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* @constructor
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* @param {number} x The horizontal position of this Point (default 0)
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* @param {number} y The vertical position of this Point (default 0)
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*/
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Phaser.Point = function (x, y) {
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x = x || 0;
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y = y || 0;
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/**
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* @property {number} x - The x coordinate of the point.
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*/
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this.x = x;
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/**
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* @property {number} y - The y coordinate of the point.
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*/
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this.y = y;
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};
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Phaser.Point.prototype = {
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/**
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* Copies the x and y properties from any given object to this Point.
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* @method Phaser.Point#copyFrom
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* @param {any} source - The object to copy from.
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* @return {Point} This Point object.
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*/
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copyFrom: function (source) {
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return this.setTo(source.x, source.y);
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},
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/**
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* Inverts the x and y values of this Point
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* @method Phaser.Point#invert
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* @return {Point} This Point object.
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*/
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invert: function () {
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return this.setTo(this.y, this.x);
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},
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/**
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* Sets the x and y values of this Point object to the given coordinates.
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* @method Phaser.Point#setTo
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* @param {number} x - The horizontal position of this point.
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* @param {number} y - The vertical position of this point.
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* @return {Point} This Point object. Useful for chaining method calls.
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*/
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setTo: function (x, y) {
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this.x = x || 0;
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this.y = y || ( (y !== 0) ? this.x : 0 );
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return this;
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},
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/**
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* Sets the x and y values of this Point object to the given coordinates.
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* @method Phaser.Point#set
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* @param {number} x - The horizontal position of this point.
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* @param {number} y - The vertical position of this point.
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* @return {Point} This Point object. Useful for chaining method calls.
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*/
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set: function (x, y) {
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this.x = x || 0;
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this.y = y || ( (y !== 0) ? this.x : 0 );
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return this;
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},
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/**
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* Adds the given x and y values to this Point.
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* @method Phaser.Point#add
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* @param {number} x - The value to add to Point.x.
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* @param {number} y - The value to add to Point.y.
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* @return {Phaser.Point} This Point object. Useful for chaining method calls.
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*/
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add: function (x, y) {
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this.x += x;
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this.y += y;
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return this;
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},
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/**
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* Subtracts the given x and y values from this Point.
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* @method Phaser.Point#subtract
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* @param {number} x - The value to subtract from Point.x.
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* @param {number} y - The value to subtract from Point.y.
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* @return {Phaser.Point} This Point object. Useful for chaining method calls.
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*/
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subtract: function (x, y) {
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this.x -= x;
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this.y -= y;
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return this;
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},
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/**
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* Multiplies Point.x and Point.y by the given x and y values.
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* @method Phaser.Point#multiply
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* @param {number} x - The value to multiply Point.x by.
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* @param {number} y - The value to multiply Point.x by.
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* @return {Phaser.Point} This Point object. Useful for chaining method calls.
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*/
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multiply: function (x, y) {
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this.x *= x;
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this.y *= y;
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return this;
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},
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/**
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* Divides Point.x and Point.y by the given x and y values.
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* @method Phaser.Point#divide
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* @param {number} x - The value to divide Point.x by.
|
|
* @param {number} y - The value to divide Point.x by.
|
|
* @return {Phaser.Point} This Point object. Useful for chaining method calls.
|
|
*/
|
|
divide: function (x, y) {
|
|
|
|
this.x /= x;
|
|
this.y /= y;
|
|
return this;
|
|
|
|
},
|
|
|
|
/**
|
|
* Clamps the x value of this Point to be between the given min and max.
|
|
* @method Phaser.Point#clampX
|
|
* @param {number} min - The minimum value to clamp this Point to.
|
|
* @param {number} max - The maximum value to clamp this Point to.
|
|
* @return {Phaser.Point} This Point object.
|
|
*/
|
|
clampX: function (min, max) {
|
|
|
|
this.x = Phaser.Math.clamp(this.x, min, max);
|
|
return this;
|
|
|
|
},
|
|
|
|
/**
|
|
* Clamps the y value of this Point to be between the given min and max
|
|
* @method Phaser.Point#clampY
|
|
* @param {number} min - The minimum value to clamp this Point to.
|
|
* @param {number} max - The maximum value to clamp this Point to.
|
|
* @return {Phaser.Point} This Point object.
|
|
*/
|
|
clampY: function (min, max) {
|
|
|
|
this.y = Phaser.Math.clamp(this.y, min, max);
|
|
return this;
|
|
|
|
},
|
|
|
|
/**
|
|
* Clamps this Point object values to be between the given min and max.
|
|
* @method Phaser.Point#clamp
|
|
* @param {number} min - The minimum value to clamp this Point to.
|
|
* @param {number} max - The maximum value to clamp this Point to.
|
|
* @return {Phaser.Point} This Point object.
|
|
*/
|
|
clamp: function (min, max) {
|
|
|
|
this.x = Phaser.Math.clamp(this.x, min, max);
|
|
this.y = Phaser.Math.clamp(this.y, min, max);
|
|
return this;
|
|
|
|
},
|
|
|
|
/**
|
|
* Creates a copy of the given Point.
|
|
* @method Phaser.Point#clone
|
|
* @param {Phaser.Point} [output] Optional Point object. If given the values will be set into this object, otherwise a brand new Point object will be created and returned.
|
|
* @return {Phaser.Point} The new Point object.
|
|
*/
|
|
clone: function (output) {
|
|
|
|
if (typeof output === "undefined")
|
|
{
|
|
output = new Phaser.Point(this.x, this.y);
|
|
}
|
|
else
|
|
{
|
|
output.setTo(this.x, this.y);
|
|
}
|
|
|
|
return output;
|
|
|
|
},
|
|
|
|
/**
|
|
* Copies the x and y properties from this Point to any given object.
|
|
* @method Phaser.Point#copyTo
|
|
* @param {any} dest - The object to copy to.
|
|
* @return {Object} The dest object.
|
|
*/
|
|
copyTo: function(dest) {
|
|
|
|
dest.x = this.x;
|
|
dest.y = this.y;
|
|
|
|
return dest;
|
|
|
|
},
|
|
|
|
/**
|
|
* Returns the distance of this Point object to the given object (can be a Circle, Point or anything with x/y properties)
|
|
* @method Phaser.Point#distance
|
|
* @param {object} dest - The target object. Must have visible x and y properties that represent the center of the object.
|
|
* @param {boolean} [round] - Round the distance to the nearest integer (default false).
|
|
* @return {number} The distance between this Point object and the destination Point object.
|
|
*/
|
|
distance: function (dest, round) {
|
|
return Phaser.Point.distance(this, dest, round);
|
|
},
|
|
|
|
/**
|
|
* Determines whether the given objects x/y values are equal to this Point object.
|
|
* @method Phaser.Point#equals
|
|
* @param {Phaser.Point} a - The first object to compare.
|
|
* @return {boolean} A value of true if the Points are equal, otherwise false.
|
|
*/
|
|
equals: function (a) {
|
|
return (a.x == this.x && a.y == this.y);
|
|
},
|
|
|
|
/**
|
|
* Rotates this Point around the x/y coordinates given to the desired angle.
|
|
* @method Phaser.Point#rotate
|
|
* @param {number} x - The x coordinate of the anchor point
|
|
* @param {number} y - The y coordinate of the anchor point
|
|
* @param {number} angle - The angle in radians (unless asDegrees is true) to rotate the Point to.
|
|
* @param {boolean} asDegrees - Is the given rotation in radians (false) or degrees (true)?
|
|
* @param {number} [distance] - An optional distance constraint between the Point and the anchor.
|
|
* @return {Phaser.Point} The modified point object.
|
|
*/
|
|
rotate: function (x, y, angle, asDegrees, distance) {
|
|
return Phaser.Point.rotate(this, x, y, angle, asDegrees, distance);
|
|
},
|
|
|
|
/**
|
|
* Calculates the length of the vector
|
|
* @method Phaser.Point#getMagnitude
|
|
* @return {number} the length of the vector
|
|
*/
|
|
getMagnitude: function() {
|
|
return Math.sqrt((this.x * this.x) + (this.y * this.y));
|
|
},
|
|
|
|
/**
|
|
* Alters the length of the vector without changing the direction
|
|
* @method Phaser.Point#getMagnitude
|
|
* @param {number} magnitude the desired magnitude of the resulting vector
|
|
* @return {Phaser.Point} the modified original vector
|
|
*/
|
|
setMagnitude: function(magnitude) {
|
|
return this.normalize().multiply(magnitude, magnitude);
|
|
},
|
|
|
|
/**
|
|
* Alters the vector so that its length is 1, but it retains the same direction
|
|
* @method Phaser.Point#normalize
|
|
* @return {Phaser.Point} the modified original vector
|
|
*/
|
|
normalize: function() {
|
|
|
|
if(!this.isZero()) {
|
|
var m = this.getMagnitude();
|
|
this.x /= m;
|
|
this.y /= m;
|
|
}
|
|
|
|
return this;
|
|
|
|
},
|
|
|
|
/**
|
|
* Determine if this point is at 0,0
|
|
* @method Phaser.Point#isZero
|
|
* @return {boolean} True if this Point is 0,0, otherwise false
|
|
*/
|
|
isZero: function() {
|
|
return (this.x === 0 && this.y === 0);
|
|
},
|
|
|
|
/**
|
|
* Returns a string representation of this object.
|
|
* @method Phaser.Point#toString
|
|
* @return {string} A string representation of the instance.
|
|
*/
|
|
toString: function () {
|
|
return '[{Point (x=' + this.x + ' y=' + this.y + ')}]';
|
|
}
|
|
|
|
};
|
|
|
|
Phaser.Point.prototype.constructor = Phaser.Point;
|
|
|
|
/**
|
|
* Adds the coordinates of two points together to create a new point.
|
|
* @method Phaser.Point.add
|
|
* @param {Phaser.Point} a - The first Point object.
|
|
* @param {Phaser.Point} b - The second Point object.
|
|
* @param {Phaser.Point} [out] - Optional Point to store the value in, if not supplied a new Point object will be created.
|
|
* @return {Phaser.Point} The new Point object.
|
|
*/
|
|
Phaser.Point.add = function (a, b, out) {
|
|
|
|
if (typeof out === "undefined") { out = new Phaser.Point(); }
|
|
|
|
out.x = a.x + b.x;
|
|
out.y = a.y + b.y;
|
|
|
|
return out;
|
|
|
|
};
|
|
|
|
/**
|
|
* Subtracts the coordinates of two points to create a new point.
|
|
* @method Phaser.Point.subtract
|
|
* @param {Phaser.Point} a - The first Point object.
|
|
* @param {Phaser.Point} b - The second Point object.
|
|
* @param {Phaser.Point} [out] - Optional Point to store the value in, if not supplied a new Point object will be created.
|
|
* @return {Phaser.Point} The new Point object.
|
|
*/
|
|
Phaser.Point.subtract = function (a, b, out) {
|
|
|
|
if (typeof out === "undefined") { out = new Phaser.Point(); }
|
|
|
|
out.x = a.x - b.x;
|
|
out.y = a.y - b.y;
|
|
|
|
return out;
|
|
|
|
};
|
|
|
|
/**
|
|
* Multiplies the coordinates of two points to create a new point.
|
|
* @method Phaser.Point.multiply
|
|
* @param {Phaser.Point} a - The first Point object.
|
|
* @param {Phaser.Point} b - The second Point object.
|
|
* @param {Phaser.Point} [out] - Optional Point to store the value in, if not supplied a new Point object will be created.
|
|
* @return {Phaser.Point} The new Point object.
|
|
*/
|
|
Phaser.Point.multiply = function (a, b, out) {
|
|
|
|
if (typeof out === "undefined") { out = new Phaser.Point(); }
|
|
|
|
out.x = a.x * b.x;
|
|
out.y = a.y * b.y;
|
|
|
|
return out;
|
|
|
|
};
|
|
|
|
/**
|
|
* Divides the coordinates of two points to create a new point.
|
|
* @method Phaser.Point.divide
|
|
* @param {Phaser.Point} a - The first Point object.
|
|
* @param {Phaser.Point} b - The second Point object.
|
|
* @param {Phaser.Point} [out] - Optional Point to store the value in, if not supplied a new Point object will be created.
|
|
* @return {Phaser.Point} The new Point object.
|
|
*/
|
|
Phaser.Point.divide = function (a, b, out) {
|
|
|
|
if (typeof out === "undefined") { out = new Phaser.Point(); }
|
|
|
|
out.x = a.x / b.x;
|
|
out.y = a.y / b.y;
|
|
|
|
return out;
|
|
|
|
};
|
|
|
|
/**
|
|
* Determines whether the two given Point objects are equal. They are considered equal if they have the same x and y values.
|
|
* @method Phaser.Point.equals
|
|
* @param {Phaser.Point} a - The first Point object.
|
|
* @param {Phaser.Point} b - The second Point object.
|
|
* @return {boolean} A value of true if the Points are equal, otherwise false.
|
|
*/
|
|
Phaser.Point.equals = function (a, b) {
|
|
return (a.x == b.x && a.y == b.y);
|
|
};
|
|
|
|
/**
|
|
* Returns the distance of this Point object to the given object (can be a Circle, Point or anything with x/y properties).
|
|
* @method Phaser.Point.distance
|
|
* @param {object} a - The target object. Must have visible x and y properties that represent the center of the object.
|
|
* @param {object} b - The target object. Must have visible x and y properties that represent the center of the object.
|
|
* @param {boolean} [round] - Round the distance to the nearest integer (default false).
|
|
* @return {number} The distance between this Point object and the destination Point object.
|
|
*/
|
|
Phaser.Point.distance = function (a, b, round) {
|
|
|
|
if (typeof round === "undefined") { round = false }
|
|
|
|
if (round)
|
|
{
|
|
return Phaser.Math.distanceRound(a.x, a.y, b.x, b.y);
|
|
}
|
|
else
|
|
{
|
|
return Phaser.Math.distance(a.x, a.y, b.x, b.y);
|
|
}
|
|
|
|
};
|
|
|
|
/**
|
|
* Rotates a Point around the x/y coordinates given to the desired angle.
|
|
* @method Phaser.Point.rotate
|
|
* @param {Phaser.Point} a - The Point object to rotate.
|
|
* @param {number} x - The x coordinate of the anchor point
|
|
* @param {number} y - The y coordinate of the anchor point
|
|
* @param {number} angle - The angle in radians (unless asDegrees is true) to rotate the Point to.
|
|
* @param {boolean} asDegrees - Is the given rotation in radians (false) or degrees (true)?
|
|
* @param {number} distance - An optional distance constraint between the Point and the anchor.
|
|
* @return {Phaser.Point} The modified point object.
|
|
*/
|
|
Phaser.Point.rotate = function (a, x, y, angle, asDegrees, distance) {
|
|
|
|
asDegrees = asDegrees || false;
|
|
distance = distance || null;
|
|
|
|
if (asDegrees)
|
|
{
|
|
angle = Phaser.Math.degToRad(angle);
|
|
}
|
|
|
|
// Get distance from origin (cx/cy) to this point
|
|
if (distance === null)
|
|
{
|
|
distance = Math.sqrt(((x - a.x) * (x - a.x)) + ((y - a.y) * (y - a.y)));
|
|
}
|
|
|
|
return a.setTo(x + distance * Math.cos(angle), y + distance * Math.sin(angle));
|
|
|
|
};
|
|
|
|
// Because PIXI uses its own Point, we'll replace it with ours to avoid duplicating code or confusion.
|
|
PIXI.Point = Phaser.Point;
|
|
</pre>
|
|
</article>
|
|
</section>
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<div class="clearfix"></div>
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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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</span>
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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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