/**
* @author Richard Davey <rich@photonstorm.com>
* @copyright 2014 Photon Storm Ltd.
* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* Create a new `Text` object. This uses a local hidden Canvas object and renders the type into it. It then makes a texture from this for renderning to the view.
* Because of this you can only display fonts that are currently loaded and available to the browser. It won't load the fonts for you.
* Here is a compatibility table showing the available default fonts across different mobile browsers: http://www.jordanm.co.uk/tinytype
*
* @class Phaser.Text
* @extends PIXI.Text
* @constructor
* @param {Phaser.Game} game - Current game instance.
* @param {number} x - X position of the new text object.
* @param {number} y - Y position of the new text object.
* @param {string} text - The actual text that will be written.
* @param {object} style - The style object containing style attributes like font, font size, etc.
*/
Phaser.Text = function (game, x, y, text, style) {
x = x || 0;
y = y || 0;
text = text || ' ';
style = style || {};
if (text.length === 0)
{
text = ' ';
}
else
{
text = text.toString();
}
/**
* @property {Phaser.Game} game - A reference to the currently running Game.
*/
this.game = game;
/**
* @property {boolean} exists - If exists = false then the Text isn't updated by the core game loop.
* @default
*/
this.exists = true;
/**
* @property {string} name - The user defined name given to this object.
* @default
*/
this.name = '';
/**
* @property {number} type - The const type of this object.
* @default
*/
this.type = Phaser.TEXT;
/**
* @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 = '';
/**
* @property {number} _fontSize - Internal cache var.
* @private
*/
this._fontSize = 32;
/**
* @property {string} _fontWeight - Internal cache var.
* @private
*/
this._fontWeight = 'normal';
/**
* @property {number} lineSpacing - Additional spacing (in pixels) between each line of text if multi-line.
* @private
*/
this._lineSpacing = 0;
/**
* @property {number} _charCount - Internal character counter used by the text coloring.
* @private
*/
this._charCount = 0;
/**
* @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();
/**
* @property {array} colors - An array of the color values as specified by `Text.addColor`.
*/
this.colors = [];
this.setStyle(style);
PIXI.Text.call(this, text, this.style);
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 ];
if (text !== ' ')
{
this.updateText();
}
};
Phaser.Text.prototype = Object.create(PIXI.Text.prototype);
Phaser.Text.prototype.constructor = Phaser.Text;
/**
* Automatically called by World.preUpdate.
*
* @method Phaser.Text#preUpdate
*/
Phaser.Text.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.tx, this.game.camera.y + this.worldTransform.ty);
if (this.visible)
{
this._cache[3] = this.game.stage.currentRenderOrderID++;
}
// Update any Children
for (var i = 0, len = this.children.length; i < len; i++)
{
this.children[i].preUpdate();
}
return true;
};
/**
* Override and use this function in your own custom objects to handle any update requirements you may have.
*
* @method Phaser.Text#update
*/
Phaser.Text.prototype.update = function() {
};
/**
* Automatically called by World.postUpdate.
*
* @method Phaser.Text#postUpdate
*/
Phaser.Text.prototype.postUpdate = function () {
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;
}
// Update any Children
for (var i = 0, len = this.children.length; i < len; i++)
{
this.children[i].postUpdate();
}
};
/**
* @method Phaser.Text#destroy
* @param {boolean} [destroyChildren=true] - Should every child of this object have its destroy method called?
*/
Phaser.Text.prototype.destroy = function (destroyChildren) {
if (this.game === null || this.destroyPhase) { return; }
if (typeof destroyChildren === 'undefined') { destroyChildren = true; }
this._cache[8] = 1;
if (this.events)
{
this.events.onDestroy$dispatch(this);
}
if (this.parent)
{
if (this.parent instanceof Phaser.Group)
{
this.parent.remove(this);
}
else
{
this.parent.removeChild(this);
}
}
this.texture.destroy(true);
if (this.canvas.parentNode)
{
this.canvas.parentNode.removeChild(this.canvas);
}
else
{
this.canvas = null;
this.context = null;
}
var i = this.children.length;
if (destroyChildren)
{
while (i--)
{
this.children[i].destroy(destroyChildren);
}
}
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;
};
/**
* Sets a drop shadow effect on the Text. You can specify the horizontal and vertical distance of the drop shadow with the `x` and `y` parameters.
* The color controls the shade of the shadow (default is black) and can be either an `rgba` or `hex` value.
* The blur is the strength of the shadow. A value of zero means a hard shadow, a value of 10 means a very soft shadow.
* To remove a shadow already in place you can call this method with no parameters set.
*
* @method Phaser.Text#setShadow
* @param {number} [x=0] - The shadowOffsetX value in pixels. This is how far offset horizontally the shadow effect will be.
* @param {number} [y=0] - The shadowOffsetY value in pixels. This is how far offset vertically the shadow effect will be.
* @param {string} [color='rgba(0,0,0,1)'] - The color of the shadow, as given in CSS rgba or hex format. Set the alpha component to 0 to disable the shadow.
* @param {number} [blur=0] - The shadowBlur value. Make the shadow softer by applying a Gaussian blur to it. A number from 0 (no blur) up to approx. 10 (depending on scene).
*/
Phaser.Text.prototype.setShadow = function (x, y, color, blur) {
if (typeof x === 'undefined') { x = 0; }
if (typeof y === 'undefined') { y = 0; }
if (typeof color === 'undefined') { color = 'rgba(0, 0, 0, 1)'; }
if (typeof blur === 'undefined') { blur = 0; }
this.style.shadowOffsetX = x;
this.style.shadowOffsetY = y;
this.style.shadowColor = color;
this.style.shadowBlur = blur;
this.dirty = true;
};
/**
* Set the style of the text by passing a single style object to it.
*
* @method Phaser.Text#setStyle
* @param {object} [style] - The style properties to be set on the Text.
* @param {string} [style.font='bold 20pt Arial'] - The style and size of the font.
* @param {string} [style.fill='black'] - A canvas fillstyle that will be used on the text eg 'red', '#00FF00'.
* @param {string} [style.align='left'] - Alignment for multiline text ('left', 'center' or 'right'), does not affect single line text.
* @param {string} [style.stroke='black'] - A canvas stroke style that will be used on the text stroke eg 'blue', '#FCFF00'.
* @param {number} [style.strokeThickness=0] - A number that represents the thickness of the stroke. Default is 0 (no stroke).
* @param {boolean} [style.wordWrap=false] - Indicates if word wrap should be used.
* @param {number} [style.wordWrapWidth=100] - The width in pixels at which text will wrap.
*/
Phaser.Text.prototype.setStyle = function (style) {
style = style || {};
style.font = style.font || 'bold 20pt Arial';
style.fill = style.fill || 'black';
style.align = style.align || 'left';
style.stroke = style.stroke || 'black'; //provide a default, see: https://github.com/GoodBoyDigital/pixi.js/issues/136
style.strokeThickness = style.strokeThickness || 0;
style.wordWrap = style.wordWrap || false;
style.wordWrapWidth = style.wordWrapWidth || 100;
style.shadowOffsetX = style.shadowOffsetX || 0;
style.shadowOffsetY = style.shadowOffsetY || 0;
style.shadowColor = style.shadowColor || 'rgba(0,0,0,0)';
style.shadowBlur = style.shadowBlur || 0;
this.style = style;
this.dirty = true;
};
/**
* Renders text. This replaces the Pixi.Text.updateText function as we need a few extra bits in here.
*
* @method Phaser.Text#updateText
* @private
*/
Phaser.Text.prototype.updateText = function () {
this.texture.baseTexture.resolution = this.resolution;
this.context.font = this.style.font;
var outputText = this.text;
if (this.style.wordWrap)
{
outputText = this.runWordWrap(this.text);
}
//split text into lines
var lines = outputText.split(/(?:\r\n|\r|\n)/);
//calculate text width
var lineWidths = [];
var maxLineWidth = 0;
var fontProperties = this.determineFontProperties(this.style.font);
for (var i = 0; i < lines.length; i++)
{
var lineWidth = this.context.measureText(lines[i]).width;
lineWidths[i] = lineWidth;
maxLineWidth = Math.max(maxLineWidth, lineWidth);
}
var width = maxLineWidth + this.style.strokeThickness;
this.canvas.width = width * this.resolution;
//calculate text height
var lineHeight = fontProperties.fontSize + this.style.strokeThickness + this._lineSpacing;
var height = (lineHeight + this._lineSpacing) * lines.length;
this.canvas.height = height * this.resolution;
this.context.scale(this.resolution, this.resolution);
if (navigator.isCocoonJS)
{
this.context.clearRect(0, 0, this.canvas.width, this.canvas.height);
}
this.context.fillStyle = this.style.fill;
this.context.font = this.style.font;
this.context.strokeStyle = this.style.stroke;
this.context.textBaseline = 'alphabetic';
this.context.shadowOffsetX = this.style.shadowOffsetX;
this.context.shadowOffsetY = this.style.shadowOffsetY;
this.context.shadowColor = this.style.shadowColor;
this.context.shadowBlur = this.style.shadowBlur;
this.context.lineWidth = this.style.strokeThickness;
this.context.lineCap = 'round';
this.context.lineJoin = 'round';
var linePositionX;
var linePositionY;
this._charCount = 0;
//draw lines line by line
for (i = 0; i < lines.length; i++)
{
linePositionX = this.style.strokeThickness / 2;
linePositionY = (this.style.strokeThickness / 2 + i * lineHeight) + fontProperties.ascent;
if (this.style.align === 'right')
{
linePositionX += maxLineWidth - lineWidths[i];
}
else if (this.style.align === 'center')
{
linePositionX += (maxLineWidth - lineWidths[i]) / 2;
}
if (this.colors.length > 0)
{
this.updateLine(lines[i], linePositionX, linePositionY);
}
else
{
if (this.style.stroke && this.style.strokeThickness)
{
this.context.strokeText(lines[i], linePositionX, linePositionY);
}
if (this.style.fill)
{
this.context.fillText(lines[i], linePositionX, linePositionY);
}
}
}
this.updateTexture();
};
/**
* Updates a line of text.
*
* @method Phaser.Text#updateLine
* @private
*/
Phaser.Text.prototype.updateLine = function (line, x, y) {
for (var i = 0; i < line.length; i++)
{
var letter = line[i];
if (this.colors[this._charCount])
{
this.context.fillStyle = this.colors[this._charCount];
this.context.strokeStyle = this.colors[this._charCount];
}
if (this.style.stroke && this.style.strokeThickness)
{
this.context.strokeText(letter, x, y);
}
if (this.style.fill)
{
this.context.fillText(letter, x, y);
}
x += this.context.measureText(letter).width;
this._charCount++;
}
};
/**
* Clears any previously set color stops.
*
* @method Phaser.Text#clearColors
*/
Phaser.Text.prototype.clearColors = function () {
this.colors = [];
this.dirty = true;
};
/**
* This method allows you to set specific colors within the Text.
* It works by taking a color value, which is a typical HTML string such as `#ff0000` or `rgb(255,0,0)` and a position.
* The position value is the index of the character in the Text string to start applying this color to.
* Once set the color remains in use until either another color or the end of the string is encountered.
* For example if the Text was `Photon Storm` and you did `Text.addColor('#ffff00', 6)` it would color in the word `Storm` in yellow.
*
* @method Phaser.Text#addColor
* @param {string} color - A canvas fillstyle that will be used on the text eg `red`, `#00FF00`, `rgba()`.
* @param {number} position - The index of the character in the string to start applying this color value from.
*/
Phaser.Text.prototype.addColor = function (color, position) {
this.colors[position] = color;
this.dirty = true;
};
/**
* Greedy wrapping algorithm that will wrap words as the line grows longer than its horizontal bounds.
*
* @method Phaser.Text#runWordWrap
* @param {string} text - The text to perform word wrap detection against.
* @private
*/
Phaser.Text.prototype.runWordWrap = function (text) {
var result = '';
var lines = text.split('\n');
for (var i = 0; i < lines.length; i++)
{
var spaceLeft = this.style.wordWrapWidth;
var words = lines[i].split(' ');
for (var j = 0; j < words.length; j++)
{
var wordWidth = this.context.measureText(words[j]).width;
var wordWidthWithSpace = wordWidth + this.context.measureText(' ').width;
if (wordWidthWithSpace > spaceLeft)
{
// Skip printing the newline if it's the first word of the line that is greater than the word wrap width.
if (j > 0)
{
result += '\n';
}
result += words[j] + ' ';
spaceLeft = this.style.wordWrapWidth - wordWidth;
}
else
{
spaceLeft -= wordWidthWithSpace;
result += words[j] + ' ';
}
}
if (i < lines.length-1)
{
result += '\n';
}
}
return result;
};
/**
* 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.Text#angle
* @property {number} angle - Gets or sets the angle of rotation in degrees.
*/
Object.defineProperty(Phaser.Text.prototype, 'angle', {
get: function() {
return Phaser.Math.radToDeg(this.rotation);
},
set: function(value) {
this.rotation = Phaser.Math.degToRad(value);
}
});
/**
* The text string to be displayed by this Text object, taking into account the style settings.
* @name Phaser.Text#text
* @property {string} text - The text string to be displayed by this Text object, taking into account the style settings.
*/
Object.defineProperty(Phaser.Text.prototype, 'text', {
get: function() {
return this._text;
},
set: function(value) {
if (value !== this._text)
{
this._text = value.toString() || ' ';
this.dirty = true;
if (this.parent)
{
this.updateTransform();
}
}
}
});
/**
* @name Phaser.Text#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.Text.prototype, 'font', {
get: function() {
return this._font;
},
set: function(value) {
if (value !== this._font)
{
this._font = value.trim();
this.style.font = this._fontWeight + ' ' + this._fontSize + "px '" + this._font + "'";
this.dirty = true;
if (this.parent)
{
this.updateTransform();
}
}
}
});
/**
* @name Phaser.Text#fontSize
* @property {number} fontSize - The size of the font in pixels.
*/
Object.defineProperty(Phaser.Text.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._fontWeight + ' ' + this._fontSize + "px '" + this._font + "'";
this.dirty = true;
if (this.parent)
{
this.updateTransform();
}
}
}
});
/**
* @name Phaser.Text#fontWeight
* @property {number} fontWeight - The weight of the font: 'normal', 'bold', 'italic'. You can combine settings too, such as 'bold italic'.
*/
Object.defineProperty(Phaser.Text.prototype, 'fontWeight', {
get: function() {
return this._fontWeight;
},
set: function(value) {
if (value !== this._fontWeight)
{
this._fontWeight = value;
this.style.font = this._fontWeight + ' ' + this._fontSize + "px '" + this._font + "'";
this.dirty = true;
if (this.parent)
{
this.updateTransform();
}
}
}
});
/**
* @name Phaser.Text#fill
* @property {object} fill - A canvas fillstyle that will be used on the text eg 'red', '#00FF00'.
*/
Object.defineProperty(Phaser.Text.prototype, 'fill', {
get: function() {
return this.style.fill;
},
set: function(value) {
if (value !== this.style.fill)
{
this.style.fill = value;
this.dirty = true;
}
}
});
/**
* @name Phaser.Text#align
* @property {string} align - Alignment for multiline text ('left', 'center' or 'right'), does not affect single line text.
*/
Object.defineProperty(Phaser.Text.prototype, 'align', {
get: function() {
return this.style.align;
},
set: function(value) {
if (value !== this.style.align)
{
this.style.align = value;
this.dirty = true;
}
}
});
/**
* @name Phaser.Text#stroke
* @property {string} stroke - A canvas fillstyle that will be used on the text stroke eg 'blue', '#FCFF00'.
*/
Object.defineProperty(Phaser.Text.prototype, 'stroke', {
get: function() {
return this.style.stroke;
},
set: function(value) {
if (value !== this.style.stroke)
{
this.style.stroke = value;
this.dirty = true;
}
}
});
/**
* @name Phaser.Text#strokeThickness
* @property {number} strokeThickness - A number that represents the thickness of the stroke. Default is 0 (no stroke)
*/
Object.defineProperty(Phaser.Text.prototype, 'strokeThickness', {
get: function() {
return this.style.strokeThickness;
},
set: function(value) {
if (value !== this.style.strokeThickness)
{
this.style.strokeThickness = value;
this.dirty = true;
}
}
});
/**
* @name Phaser.Text#wordWrap
* @property {boolean} wordWrap - Indicates if word wrap should be used.
*/
Object.defineProperty(Phaser.Text.prototype, 'wordWrap', {
get: function() {
return this.style.wordWrap;
},
set: function(value) {
if (value !== this.style.wordWrap)
{
this.style.wordWrap = value;
this.dirty = true;
}
}
});
/**
* @name Phaser.Text#wordWrapWidth
* @property {number} wordWrapWidth - The width at which text will wrap.
*/
Object.defineProperty(Phaser.Text.prototype, 'wordWrapWidth', {
get: function() {
return this.style.wordWrapWidth;
},
set: function(value) {
if (value !== this.style.wordWrapWidth)
{
this.style.wordWrapWidth = value;
this.dirty = true;
}
}
});
/**
* @name Phaser.Text#lineSpacing
* @property {number} lineSpacing - Additional spacing (in pixels) between each line of text if multi-line.
*/
Object.defineProperty(Phaser.Text.prototype, 'lineSpacing', {
get: function() {
return this._lineSpacing;
},
set: function(value) {
if (value !== this._lineSpacing)
{
this._lineSpacing = parseFloat(value);
this.dirty = true;
if (this.parent)
{
this.updateTransform();
}
}
}
});
/**
* @name Phaser.Text#shadowOffsetX
* @property {number} shadowOffsetX - The shadowOffsetX value in pixels. This is how far offset horizontally the shadow effect will be.
*/
Object.defineProperty(Phaser.Text.prototype, 'shadowOffsetX', {
get: function() {
return this.style.shadowOffsetX;
},
set: function(value) {
if (value !== this.style.shadowOffsetX)
{
this.style.shadowOffsetX = value;
this.dirty = true;
}
}
});
/**
* @name Phaser.Text#shadowOffsetY
* @property {number} shadowOffsetY - The shadowOffsetY value in pixels. This is how far offset vertically the shadow effect will be.
*/
Object.defineProperty(Phaser.Text.prototype, 'shadowOffsetY', {
get: function() {
return this.style.shadowOffsetY;
},
set: function(value) {
if (value !== this.style.shadowOffsetY)
{
this.style.shadowOffsetY = value;
this.dirty = true;
}
}
});
/**
* @name Phaser.Text#shadowColor
* @property {string} shadowColor - The color of the shadow, as given in CSS rgba format. Set the alpha component to 0 to disable the shadow.
*/
Object.defineProperty(Phaser.Text.prototype, 'shadowColor', {
get: function() {
return this.style.shadowColor;
},
set: function(value) {
if (value !== this.style.shadowColor)
{
this.style.shadowColor = value;
this.dirty = true;
}
}
});
/**
* @name Phaser.Text#shadowBlur
* @property {number} shadowBlur - The shadowBlur value. Make the shadow softer by applying a Gaussian blur to it. A number from 0 (no blur) up to approx. 10 (depending on scene).
*/
Object.defineProperty(Phaser.Text.prototype, 'shadowBlur', {
get: function() {
return this.style.shadowBlur;
},
set: function(value) {
if (value !== this.style.shadowBlur)
{
this.style.shadowBlur = value;
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.Text#inputEnabled
* @property {boolean} inputEnabled - Set to true to allow this object to receive input events.
*/
Object.defineProperty(Phaser.Text.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 Text that is fixed to the camera uses its x/y coordinates as offsets from the top left of the camera. These are stored in Text.cameraOffset.
* Note that the cameraOffset values are in addition to any parent in the display list.
* So if this Text was in a Group that has x: 200, then this will be added to the cameraOffset.x
*
* @name Phaser.Text#fixedToCamera
* @property {boolean} fixedToCamera - Set to true to fix this Text to the Camera at its current world coordinates.
*/
Object.defineProperty(Phaser.Text.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.Text#destroyPhase
* @property {boolean} destroyPhase - True if this object is currently being destroyed.
*/
Object.defineProperty(Phaser.Text.prototype, "destroyPhase", {
get: function () {
return !!this._cache[8];
}
});
