phaser/src/gameobjects/BitmapText.js
photonstorm 0b1fb5a637 Destroying an object with an input handler during its onDown event would throw Signals dispatch errors (thanks @jflowers45, fix #746)
InputHandler._setHandCursor private var wasn't properly set, meaning the hand cursor could sometimes remain (during destroy sequence for example)
All Game Objects have a new property: destroyPhase (boolean) which is true if the object is in the process of being destroyed, otherwise false.
The PIXI.AbstractFilter is now included in the Phaser Pixi build by default, allowing for easier use of external Pixi Filters.
2014-04-22 01:43:22 +01:00

485 lines
12 KiB
JavaScript

/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2014 Photon Storm Ltd.
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* Creates a new BitmapText object.
*
* @class Phaser.BitmapText
*
* @classdesc BitmapText objects work by taking a texture file and an XML file that describes the font layout.
*
* On Windows you can use the free app BMFont: http://www.angelcode.com/products/bmfont/
* On OS X we recommend Glyph Designer: http://www.71squared.com/en/glyphdesigner
* For Web there is the great Littera: http://kvazars.com/littera/
*
* @constructor
* @param {Phaser.Game} game - A reference to the currently running game.
* @param {number} x - X position of the new bitmapText object.
* @param {number} y - Y position of the new bitmapText object.
* @param {string} font - The key of the BitmapFont as stored in Game.Cache.
* @param {string} [text=''] - The actual text that will be rendered. Can be set later via BitmapText.text.
* @param {number} [size=32] - The size the font will be rendered in, in pixels.
*/
Phaser.BitmapText = function (game, x, y, font, text, size) {
x = x || 0;
y = y || 0;
font = font || '';
text = text || '';
size = size || 32;
/**
* @property {Phaser.Game} game - A reference to the currently running Game.
*/
this.game = game;
/**
* @property {boolean} exists - If exists = false then the Sprite isn't updated by the core game loop or physics subsystem at all.
* @default
*/
this.exists = true;
/**
* @property {string} name - The user defined name given to this BitmapText.
* @default
*/
this.name = '';
/**
* @property {number} type - The const type of this object.
* @readonly
*/
this.type = Phaser.BITMAPTEXT;
/**
* @property {number} z - The z-depth value of this object within its Group (remember the World is a Group as well). No two objects in a Group can have the same z value.
*/
this.z = 0;
/**
* @property {Phaser.Point} world - The world coordinates of this Sprite. This differs from the x/y coordinates which are relative to the Sprites container.
*/
this.world = new Phaser.Point(x, y);
/**
* @property {string} _text - Internal cache var.
* @private
*/
this._text = text;
/**
* @property {string} _font - Internal cache var.
* @private
*/
this._font = font;
/**
* @property {number} _fontSize - Internal cache var.
* @private
*/
this._fontSize = size;
/**
* @property {string} _align - Internal cache var.
* @private
*/
this._align = 'left';
/**
* @property {number} _tint - Internal cache var.
* @private
*/
this._tint = 0xFFFFFF;
/**
* @property {Phaser.Events} events - The Events you can subscribe to that are dispatched when certain things happen on this Sprite or its components.
*/
this.events = new Phaser.Events(this);
/**
* @property {Phaser.InputHandler|null} input - The Input Handler for this object. Needs to be enabled with image.inputEnabled = true before you can use it.
*/
this.input = null;
/**
* @property {Phaser.Point} cameraOffset - If this object is fixedToCamera then this stores the x/y offset that its drawn at, from the top-left of the camera view.
*/
this.cameraOffset = new Phaser.Point();
PIXI.BitmapText.call(this, text);
this.position.set(x, y);
/**
* A small internal cache:
* 0 = previous position.x
* 1 = previous position.y
* 2 = previous rotation
* 3 = renderID
* 4 = fresh? (0 = no, 1 = yes)
* 5 = outOfBoundsFired (0 = no, 1 = yes)
* 6 = exists (0 = no, 1 = yes)
* 7 = fixed to camera (0 = no, 1 = yes)
* 8 = destroy phase? (0 = no, 1 = yes)
* @property {Array} _cache
* @private
*/
this._cache = [0, 0, 0, 0, 1, 0, 1, 0, 0];
};
Phaser.BitmapText.prototype = Object.create(PIXI.BitmapText.prototype);
Phaser.BitmapText.prototype.constructor = Phaser.BitmapText;
/**
* @method Phaser.BitmapText.prototype.setStyle
* @private
*/
Phaser.BitmapText.prototype.setStyle = function() {
this.style = { align: this._align };
this.fontName = this._font;
this.fontSize = this._fontSize;
this.dirty = true;
};
/**
* Automatically called by World.preUpdate.
* @method Phaser.BitmapText.prototype.preUpdate
*/
Phaser.BitmapText.prototype.preUpdate = function () {
this._cache[0] = this.world.x;
this._cache[1] = this.world.y;
this._cache[2] = this.rotation;
if (!this.exists || !this.parent.exists)
{
this.renderOrderID = -1;
return false;
}
if (this.autoCull)
{
// Won't get rendered but will still get its transform updated
this.renderable = this.game.world.camera.screenView.intersects(this.getBounds());
}
this.world.setTo(this.game.camera.x + this.worldTransform[2], this.game.camera.y + this.worldTransform[5]);
if (this.visible)
{
this._cache[3] = this.game.stage.currentRenderOrderID++;
}
return true;
};
/**
* Override and use this function in your own custom objects to handle any update requirements you may have.
*
* @method Phaser.BitmapText.prototype.update
*/
Phaser.BitmapText.prototype.update = function() {
};
/**
* Automatically called by World.postUpdate.
* @method Phaser.BitmapText.prototype.postUpdate
*/
Phaser.BitmapText.prototype.postUpdate = function () {
// Fixed to Camera?
if (this._cache[7] === 1)
{
this.position.x = (this.game.camera.view.x + this.cameraOffset.x) / this.game.camera.scale.x;
this.position.y = (this.game.camera.view.y + this.cameraOffset.y) / this.game.camera.scale.y;
}
};
/**
* Destroy this BitmapText instance. This will remove any filters and un-parent any children.
* @method Phaser.BitmapText.prototype.destroy
* @param {boolean} [destroyChildren=true] - Should every child of this object have its destroy method called?
*/
Phaser.BitmapText.prototype.destroy = function(destroyChildren) {
if (this.game === null || this.destroyPhase) { return; }
if (typeof destroyChildren === 'undefined') { destroyChildren = true; }
this._cache[8] = 1;
if (this.parent)
{
if (this.parent instanceof Phaser.Group)
{
this.parent.remove(this);
}
else
{
this.parent.removeChild(this);
}
}
var i = this.children.length;
if (destroyChildren)
{
while (i--)
{
if (this.children[i].destroy)
{
this.children[i].destroy(destroyChildren);
}
else
{
this.removeChild(this.children[i]);
}
}
}
else
{
while (i--)
{
this.removeChild(this.children[i]);
}
}
this.exists = false;
this.visible = false;
this.filters = null;
this.mask = null;
this.game = null;
this._cache[8] = 0;
};
/**
* @name Phaser.BitmapText#align
* @property {string} align - Alignment for multiline text ('left', 'center' or 'right'), does not affect single line text.
*/
Object.defineProperty(Phaser.BitmapText.prototype, 'align', {
get: function() {
return this._align;
},
set: function(value) {
if (value !== this._align)
{
this._align = value;
this.setStyle();
}
}
});
/**
* @name Phaser.BitmapText#tint
* @property {number} tint - The tint applied to the BitmapText. This is a hex value. Set to white to disable (0xFFFFFF)
*/
Object.defineProperty(Phaser.BitmapText.prototype, 'tint', {
get: function() {
return this._tint;
},
set: function(value) {
if (value !== this._tint)
{
this._tint = value;
this.dirty = true;
}
}
});
/**
* Indicates the rotation of the Text, in degrees, from its original orientation. Values from 0 to 180 represent clockwise rotation; values from 0 to -180 represent counterclockwise rotation.
* Values outside this range are added to or subtracted from 360 to obtain a value within the range. For example, the statement player.angle = 450 is the same as player.angle = 90.
* If you wish to work in radians instead of degrees use the property Sprite.rotation instead.
* @name Phaser.BitmapText#angle
* @property {number} angle - Gets or sets the angle of rotation in degrees.
*/
Object.defineProperty(Phaser.BitmapText.prototype, 'angle', {
get: function() {
return Phaser.Math.radToDeg(this.rotation);
},
set: function(value) {
this.rotation = Phaser.Math.degToRad(value);
}
});
/**
* @name Phaser.BitmapText#font
* @property {string} font - The font the text will be rendered in, i.e. 'Arial'. Must be loaded in the browser before use.
*/
Object.defineProperty(Phaser.BitmapText.prototype, 'font', {
get: function() {
return this._font;
},
set: function(value) {
if (value !== this._font)
{
this._font = value.trim();
this.style.font = this._fontSize + "px '" + this._font + "'";
this.dirty = true;
}
}
});
/**
* @name Phaser.BitmapText#fontSize
* @property {number} fontSize - The size of the font in pixels.
*/
Object.defineProperty(Phaser.BitmapText.prototype, 'fontSize', {
get: function() {
return this._fontSize;
},
set: function(value) {
value = parseInt(value, 10);
if (value !== this._fontSize)
{
this._fontSize = value;
this.style.font = this._fontSize + "px '" + this._font + "'";
this.dirty = true;
}
}
});
/**
* The text string to be displayed by this Text object, taking into account the style settings.
* @name Phaser.BitmapText#text
* @property {string} text - The text string to be displayed by this Text object, taking into account the style settings.
*/
Object.defineProperty(Phaser.BitmapText.prototype, 'text', {
get: function() {
return this._text;
},
set: function(value) {
if (value !== this._text)
{
this._text = value.toString() || ' ';
this.dirty = true;
}
}
});
/**
* By default a Text object won't process any input events at all. By setting inputEnabled to true the Phaser.InputHandler is
* activated for this object and it will then start to process click/touch events and more.
*
* @name Phaser.BitmapText#inputEnabled
* @property {boolean} inputEnabled - Set to true to allow this object to receive input events.
*/
Object.defineProperty(Phaser.BitmapText.prototype, "inputEnabled", {
get: function () {
return (this.input && this.input.enabled);
},
set: function (value) {
if (value)
{
if (this.input === null)
{
this.input = new Phaser.InputHandler(this);
this.input.start();
}
else if (this.input && !this.input.enabled)
{
this.input.start();
}
}
else
{
if (this.input && this.input.enabled)
{
this.input.stop();
}
}
}
});
/**
* An BitmapText that is fixed to the camera uses its x/y coordinates as offsets from the top left of the camera. These are stored in BitmapText.cameraOffset.
* Note that the cameraOffset values are in addition to any parent in the display list.
* So if this BitmapText was in a Group that has x: 200, then this will be added to the cameraOffset.x
*
* @name Phaser.BitmapText#fixedToCamera
* @property {boolean} fixedToCamera - Set to true to fix this BitmapText to the Camera at its current world coordinates.
*/
Object.defineProperty(Phaser.BitmapText.prototype, "fixedToCamera", {
get: function () {
return !!this._cache[7];
},
set: function (value) {
if (value)
{
this._cache[7] = 1;
this.cameraOffset.set(this.x, this.y);
}
else
{
this._cache[7] = 0;
}
}
});
/**
* @name Phaser.BitmapText#destroyPhase
* @property {boolean} destroyPhase - True if this object is currently being destroyed.
*/
Object.defineProperty(Phaser.BitmapText.prototype, "destroyPhase", {
get: function () {
return !!this._cache[8];
}
});