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Joystick updates.

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This commit is contained in:
Richard Davey 2014-05-07 18:10:13 +01:00
parent 281e84ee9b
commit 570e8acabb
4 changed files with 114 additions and 49 deletions
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115
plugins/VirtualJoystick.js
View file

@ -21,7 +21,13 @@ Phaser.Plugin.VirtualJoystick = function (game, parent) {
this.nubCenter;
this.isDragging = false;
this.angle = 0;
this.distance = 0;
this.force = 0;
this.deltaX = 0;
this.deltaY = 0;
this.speed = 0;
};
@ -29,25 +35,24 @@ Phaser.Plugin.VirtualJoystick = function (game, parent) {
Phaser.Plugin.VirtualJoystick.prototype = Object.create(Phaser.Plugin.prototype);
Phaser.Plugin.VirtualJoystick.prototype.constructor = Phaser.Plugin.VirtualJoystick;
Phaser.Plugin.VirtualJoystick.prototype.init = function (x, y, diameter) {
Phaser.Plugin.VirtualJoystick.prototype.init = function (x, y, diameter, limit) {
if (typeof diameter === 'undefined') { diameter = 80; }
if (typeof limit === 'undefined') { limit = Math.floor(diameter / 2); }
this.x = x;
this.y = y;
var radius = Math.floor(diameter / 2);
this.testCircle = new Phaser.Circle(200, 200, diameter);
this.testPoint = new Phaser.Point();
var nr = radius - 4;
this.baseCircle = new Phaser.Circle(x, y, diameter);
this.baseBMD = this.game.make.bitmapData(diameter, diameter);
this.nubBMD = this.game.make.bitmapData(diameter - 4, diameter - 4);
this.nubBMD = this.game.make.bitmapData(nr * 2, nr * 2);
this.baseBMD.circle(radius, radius, radius, 'rgb(255, 0, 0)');
this.nubBMD.circle(radius, radius, (radius) - 4, 'rgb(0, 255, 0)');
this.nubBMD.circle(nr, nr, nr, 'rgb(0, 255, 0)');
// Base
this.base = this.game.add.sprite(x, y, this.baseBMD);
@ -62,36 +67,44 @@ Phaser.Plugin.VirtualJoystick.prototype.init = function (x, y, diameter) {
this.nub.events.onInputDown.add(this.startDrag, this);
this.nub.events.onInputUp.add(this.stopDrag, this);
// Need to find a way to not hog this callback
this.game.input.setMoveCallback(this.move, this);
this.isDragging = false;
this.distance = 0;
this.limit = radius;
this.speed = 0;
this.force = 0;
this.limit = limit;
this.limitPoint = new Phaser.Point();
this.m = new Phaser.Point();
this.prev = new Phaser.Point(x, y);
this.location = new Phaser.Point();
}
Phaser.Plugin.VirtualJoystick.prototype.startDrag = function () {
Phaser.Plugin.VirtualJoystick.prototype.startDrag = function (nub, pointer) {
this.isDragging = true;
this.distance = 0;
this.angle = 0;
this.location.set(pointer.x, pointer.y);
this.distance = Phaser.Point.distance(this.base, this.location, true);
this.angle = this.game.math.wrapAngle(this.location.angle(this.base, true) + 180);
this.force = this.game.math.percent(this.distance, this.limit);
};
Phaser.Plugin.VirtualJoystick.prototype.stopDrag = function () {
Phaser.Plugin.VirtualJoystick.prototype.stopDrag = function (nub, pointer) {
this.isDragging = false;
this.distance = 0;
this.angle = 0;
this.force = 0;
this.nub.x = this.base.x;
this.nub.y = this.base.y;
this.prev.set(this.base.x, this.base.y);
this.limitPoint.set(this.base.x, this.base.y);
};
@ -102,38 +115,54 @@ Phaser.Plugin.VirtualJoystick.prototype.move = function (pointer, x, y) {
return;
}
this.m.set(x, y);
this.location.set(x, y);
this.distance = Phaser.Point.distance(this.base, this.m, true);
this.distance = Phaser.Point.distance(this.base, this.location, true);
this.angle = Phaser.Point.angle(this.base, this.m) * 180 / Math.PI;
this.angle = this.game.math.wrapAngle(this.angle + 180, false);
this.angle = this.game.math.wrapAngle(this.location.angle(this.base, true) + 180);
Phaser.Circle.circumferencePoint(this.testCircle, this.angle, true, this.testPoint);
Phaser.Circle.circumferencePoint(this.baseCircle, this.angle, true, this.limitPoint);
this.force = this.game.math.percent(this.distance, this.limit);
// If the pointer is outside the baseCircle then we don't need to set the sprite like this
if (this.baseCircle.contains(x, y))
if (this.distance < this.limit)
{
this.nub.x = x;
this.nub.y = y;
this.limitPoint.copyFrom(this.location);
}
else
{
// this.nub.position.set(this.limitPoint.x, this.limitPoint.y);
this.nub.x = this.limitPoint.x;
this.nub.y = this.limitPoint.y;
this.baseCircle.circumferencePoint(this.angle, true, this.limitPoint);
}
// if (this.distance < this.limit)
// {
// }
// else
// {
// this.nub.x = this.limitPoint.x;
// this.nub.y = this.limitPoint.y;
// }
this.nub.position.set(this.limitPoint.x, this.limitPoint.y);
};
/**
* Given the speed calculate the velocity and return it as a Point object, or set it to the given point object.
* One way to use this is: velocityFromAngle(angle, 200, sprite.velocity) which will set the values directly to the sprites velocity and not create a new Point object.
*
* @method Phaser.Plugin.VirtualJoystick#setVelocity
* @param {Phaser.Sprite} sprite - The Sprite to set the velocity on. The Sprite must have a physics body already set. The value will be set into Sprite.body.velocity.
* @param {number} [minSpeed=0] - The minimum speed the Sprite will move if the joystick is at its default (non-moved) position.
* @param {number} [maxSpeed=100] - The maximum speed the Sprite will move if the joystick is at its full extent.
* @return {Phaser.Sprite} The Sprite object.
*/
Phaser.Plugin.VirtualJoystick.prototype.setVelocity = function (sprite, minSpeed, maxSpeed) {
if (typeof minSpeed === 'undefined') { minSpeed = 0; }
if (typeof maxSpeed === 'undefined') { maxSpeed = 200; }
if (this.force === 0 && minSpeed === 0)
{
sprite.body.velocity.set(0, 0);
}
else
{
var speed = (maxSpeed - minSpeed) * this.force;
sprite.body.velocity.set((Math.cos(this.game.math.degToRad(this.angle)) * speed), (Math.sin(this.game.math.degToRad(this.angle)) * speed));
}
return sprite;
};
@ -143,15 +172,15 @@ Phaser.Plugin.VirtualJoystick.prototype.update = function () {
Phaser.Plugin.VirtualJoystick.prototype.render = function () {
this.game.debug.text(this.distance, 32, 32);
this.game.debug.text(this.angle, 132, 32);
this.game.debug.text('force: ' + this.force, 32, 32);
// this.game.debug.text(this.distance, 32, 32);
// this.game.debug.text(this.angle, 132, 32);
this.game.debug.text('x: ' + this.m.x + ' y: ' + this.m.y, 32, 64);
// this.game.debug.text('x: ' + this.location.x + ' y: ' + this.location.y, 32, 64);
// this.game.debug.text('x: ' + this.limitPoint.x + ' y: ' + this.limitPoint.y, 32, 64);
// this.game.debug.text('x: ' + this.prev.x + ' y: ' + this.prev.y, 32, 64);
// this.game.debug.text(Phaser.Point.distance(this.base, this.prev, true), 32, 96);
this.game.debug.geom(this.testCircle);
this.game.debug.geom(this.testPoint, 'rgb(255,0,0)');
this.game.debug.geom(this.limitPoint, 'rgb(255,255,0)');
};

6
src/gameobjects/BitmapData.js
View file

@ -858,9 +858,9 @@ Phaser.BitmapData.prototype = {
* Draws a filled Circle to the BitmapData at the given x, y coordinates and radius in size.
*
* @method Phaser.BitmapData#circle
* @param {number} x - The x coordinate to draw the Circle at.
* @param {number} y - The y coordinate to draw the Circle at.
* @param {number} radius - The radius of the Circle.
* @param {number} x - The x coordinate to draw the Circle at. This is the center of the circle.
* @param {number} y - The y coordinate to draw the Circle at. This is the center of the circle.
* @param {number} radius - The radius of the Circle in pixels. The radius is half the diameter.
* @param {string} [fillStyle] - If set the context fillStyle will be set to this value before the circle is drawn.
*/
circle: function (x, y, radius, fillStyle) {

14
src/geom/Point.js
View file

@ -283,13 +283,21 @@ Phaser.Point.prototype = {
*
* @method Phaser.Point#angle
* @param {Phaser.Point|any} a - The object to get the angle from this Point to.
* @param {boolean} [asDegrees=false] - Is the given angle in radians (false) or degrees (true)?
* @return {number} The angle between the two objects.
*/
angle: function (a) {
angle: function (a, asDegrees) {
return Math.atan2(a.y - this.y, a.x - this.x);
if (typeof asDegrees === 'undefined') { asDegrees = false; }
// return Math.atan2(this.x * a.y - this.y * a.x, this.x * a.x + this.y * a.y);
if (asDegrees)
{
return Phaser.Math.radToDeg(Math.atan2(a.y - this.y, a.x - this.x));
}
else
{
return Math.atan2(a.y - this.y, a.x - this.x);
}
},

28
src/math/Math.js
View file

@ -1300,6 +1300,34 @@ Phaser.Math = {
},
/**
* Work out what percentage value a is of value b using the given base.
*
* @method Phaser.Math#percent
* @param {number} a - The value to work out the percentage for.
* @param {number} b - The value you wish to get the percentage of.
* @param {number} [base=0] - The base value.
* @return {number} The percentage a is of b, between 0 and 1.
*/
percent: function (a, b, base) {
if (typeof base === 'undefined') { base = 0; }
if (a > b || base > b)
{
return 1;
}
else if (a < base || base > a)
{
return 0;
}
else
{
return (a - base) / b;
}
},
/**
* Convert degrees to radians.
*