Phaser

Class: Arcade

Phaser.Physics. Arcade

Arcade Physics Constructor

new Arcade(game)

Arcade Physics constructor.

Parameters:
Name Type Description
game Phaser.Game

reference to the current game instance.
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Classes

Body

Members

bounds

Properties:
Name Type Description
bounds Phaser.Rectangle

The bounds inside of which the physics world exists. Defaults to match the world bounds.
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game

Properties:
Name Type Description
game Phaser.Game

Local reference to game.
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gravity

Properties:
Name Type Description
gravity Phaser.Point

The World gravity setting. Defaults to x: 0, y: 0, or no gravity.
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maxLevels

Properties:
Name Type Description
maxLevels number

Used by the QuadTree to set the maximum number of iteration levels.
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maxObjects

Properties:
Name Type Description
maxObjects number

Used by the QuadTree to set the maximum number of objects per quad.
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OVERLAP_BIAS

Properties:
Name Type Description
OVERLAP_BIAS number

A value added to the delta values during collision checks.
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quadTree

Properties:
Name Type Description
quadTree Phaser.QuadTree

The world QuadTree.
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quadTreeID

Properties:
Name Type Description
quadTreeID number

The QuadTree ID.
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Methods

accelerateToObject(displayObject, destination, speed, xSpeedMax, ySpeedMax) → {number}

Sets the acceleration.x/y property on the display object so it will move towards the target at the given speed (in pixels per second sq.) You must give a maximum speed value, beyond which the display object won't go any faster. Note: The display object does not continuously track the target. If the target changes location during transit the display object will not modify its course. Note: The display object doesn't stop moving once it reaches the destination coordinates.

Parameters:
Name Type Argument Default Description
displayObject any

The display object to move.
destination any

The display object to move towards. Can be any object but must have visible x/y properties.
speed number <optional>
 60

The speed it will accelerate in pixels per second.
xSpeedMax number <optional>
 500

The maximum x velocity the display object can reach.
ySpeedMax number <optional>
 500

The maximum y velocity the display object can reach.
Source:
Returns:

The angle (in radians) that the object should be visually set to in order to match its new trajectory.

Type
number

accelerateToPointer(displayObject, pointer, speed, xSpeedMax, ySpeedMax) → {number}

Sets the acceleration.x/y property on the display object so it will move towards the target at the given speed (in pixels per second sq.) You must give a maximum speed value, beyond which the display object won't go any faster. Note: The display object does not continuously track the target. If the target changes location during transit the display object will not modify its course. Note: The display object doesn't stop moving once it reaches the destination coordinates.

Parameters:
Name Type Argument Default Description
displayObject any

The display object to move.
pointer Phaser.Pointer <optional>

The pointer to move towards. Defaults to Phaser.Input.activePointer.
speed number <optional>
 60

The speed it will accelerate in pixels per second.
xSpeedMax number <optional>
 500

The maximum x velocity the display object can reach.
ySpeedMax number <optional>
 500

The maximum y velocity the display object can reach.
Source:
Returns:

The angle (in radians) that the object should be visually set to in order to match its new trajectory.

Type
number

accelerateToXY(displayObject, x, y, speed, xSpeedMax, ySpeedMax) → {number}

Sets the acceleration.x/y property on the display object so it will move towards the x/y coordinates at the given speed (in pixels per second sq.) You must give a maximum speed value, beyond which the display object won't go any faster. Note: The display object does not continuously track the target. If the target changes location during transit the display object will not modify its course. Note: The display object doesn't stop moving once it reaches the destination coordinates.

Parameters:
Name Type Argument Default Description
displayObject any

The display object to move.
x number

The x coordinate to accelerate towards.
y number

The y coordinate to accelerate towards.
speed number <optional>
 60

The speed it will accelerate in pixels per second.
xSpeedMax number <optional>
 500

The maximum x velocity the display object can reach.
ySpeedMax number <optional>
 500

The maximum y velocity the display object can reach.
Source:
Returns:

The angle (in radians) that the object should be visually set to in order to match its new trajectory.

Type
number

accelerationFromRotation(rotation, speed, point) → {Phaser.Point}

Given the rotation (in radians) and speed calculate the acceleration and return it as a Point object, or set it to the given point object. One way to use this is: velocityFromRotation(rotation, 200, sprite.velocity) which will set the values directly to the sprites velocity and not create a new Point object.

Parameters:
Name Type Argument Default Description
rotation number

The angle in radians.
speed number <optional>
 60

The speed it will move, in pixels per second sq.
point Phaser.Point | object <optional>

The Point object in which the x and y properties will be set to the calculated acceleration.
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Returns:
  • A Point where point.x contains the acceleration x value and point.y contains the acceleration y value.
Type
Phaser.Point

angleBetween(source, target) → {number}

Find the angle in radians between two display objects (like Sprites).

Parameters:
Name Type Description
source any

The Display Object to test from.
target any

The Display Object to test to.
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Returns:

The angle in radians between the source and target display objects.

Type
number

angleToPointer(displayObject, pointer) → {number}

Find the angle in radians between a display object (like a Sprite) and a Pointer, taking their x/y and center into account.

Parameters:
Name Type Argument Description
displayObject any

The Display Object to test from.
pointer Phaser.Pointer <optional>

The Phaser.Pointer to test to. If none is given then Input.activePointer is used.
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Returns:

The angle in radians between displayObject.x/y to Pointer.x/y

Type
number

angleToXY(displayObject, x, y) → {number}

Find the angle in radians between a display object (like a Sprite) and the given x/y coordinate.

Parameters:
Name Type Description
displayObject any

The Display Object to test from.
x number

The x coordinate to get the angle to.
y number

The y coordinate to get the angle to.
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Returns:

The angle in radians between displayObject.x/y to Pointer.x/y

Type
number

<protected> checkWorldBounds()

Internal method.

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collide(object1, object2, collideCallback, processCallback, callbackContext) → {number}

Checks for collision between two game objects. The objects can be Sprites, Groups, Emitters or Tilemaps. You can perform Sprite vs. Sprite, Sprite vs. Group, Group vs. Group, Sprite vs. Tilemap or Group vs. Tilemap collisions. The objects are also automatically separated.

Parameters:
Name Type Argument Default Description
object1 Phaser.Sprite | Phaser.Group | Phaser.Particles.Emitter | Phaser.Tilemap

The first object to check. Can be an instance of Phaser.Sprite, Phaser.Group, Phaser.Particles.Emitter, or Phaser.Tilemap
object2 Phaser.Sprite | Phaser.Group | Phaser.Particles.Emitter | Phaser.Tilemap

The second object to check. Can be an instance of Phaser.Sprite, Phaser.Group, Phaser.Particles.Emitter or Phaser.Tilemap
collideCallback function <optional>
 null

An optional callback function that is called if the objects overlap. The two objects will be passed to this function in the same order in which you passed them to Collision.overlap.
processCallback function <optional>
 null

A callback function that lets you perform additional checks against the two objects if they overlap. If this is set then collideCallback will only be called if processCallback returns true.
callbackContext object <optional>

The context in which to run the callbacks.
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Returns:

The number of collisions that were processed.

Type
number

computeVelocity(axis, body, velocity, acceleration, drag, mMax) → {number}

A tween-like function that takes a starting velocity and some other factors and returns an altered velocity.

Parameters:
Name Type Description
axis number

1 for horizontal, 2 for vertical.
body Phaser.Physics.Arcade.Body

The Body object to be updated.
velocity number

Any component of velocity (e.g. 20).
acceleration number

Rate at which the velocity is changing.
drag number

Really kind of a deceleration, this is how much the velocity changes if Acceleration is not set.
mMax number

An absolute value cap for the velocity.
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Returns:

The altered Velocity value.

Type
number

distanceBetween(source, target) → {number}

Find the distance between two display objects (like Sprites).

Parameters:
Name Type Description
source any

The Display Object to test from.
target any

The Display Object to test to.
Source:
Returns:

The distance between the source and target objects.

Type
number

distanceToPointer(displayObject, pointer) → {number}

Find the distance between a display object (like a Sprite) and a Pointer. If no Pointer is given the Input.activePointer is used. The calculation is made from the display objects x/y coordinate. This may be the top-left if its anchor hasn't been changed. If you need to calculate from the center of a display object instead use the method distanceBetweenCenters()

Parameters:
Name Type Argument Description
displayObject any

The Display Object to test from.
pointer Phaser.Pointer <optional>

The Phaser.Pointer to test to. If none is given then Input.activePointer is used.
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Returns:

The distance between the object and the Pointer.

Type
number

distanceToXY(displayObject, x, y) → {number}

Find the distance between a display object (like a Sprite) and the given x/y coordinates. The calculation is made from the display objects x/y coordinate. This may be the top-left if its anchor hasn't been changed. If you need to calculate from the center of a display object instead use the method distanceBetweenCenters()

Parameters:
Name Type Description
displayObject any

The Display Object to test from.
x number

The x coordinate to move towards.
y number

The y coordinate to move towards.
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Returns:

The distance between the object and the x/y coordinates.

Type
number

moveToObject(displayObject, destination, speed, maxTime) → {number}

Move the given display object towards the destination object at a steady velocity. If you specify a maxTime then it will adjust the speed (over-writing what you set) so it arrives at the destination in that number of seconds. Timings are approximate due to the way browser timers work. Allow for a variance of +- 50ms. Note: The display object does not continuously track the target. If the target changes location during transit the display object will not modify its course. Note: The display object doesn't stop moving once it reaches the destination coordinates. Note: Doesn't take into account acceleration, maxVelocity or drag (if you've set drag or acceleration too high this object may not move at all)

Parameters:
Name Type Argument Default Description
displayObject any

The display object to move.
destination any

The display object to move towards. Can be any object but must have visible x/y properties.
speed number <optional>
 60

The speed it will move, in pixels per second (default is 60 pixels/sec)
maxTime number <optional>
 0

Time given in milliseconds (1000 = 1 sec). If set the speed is adjusted so the object will arrive at destination in the given number of ms.
Source:
Returns:

The angle (in radians) that the object should be visually set to in order to match its new velocity.

Type
number

moveToPointer(displayObject, speed, pointer, maxTime) → {number}

Move the given display object towards the pointer at a steady velocity. If no pointer is given it will use Phaser.Input.activePointer. If you specify a maxTime then it will adjust the speed (over-writing what you set) so it arrives at the destination in that number of seconds. Timings are approximate due to the way browser timers work. Allow for a variance of +- 50ms. Note: The display object does not continuously track the target. If the target changes location during transit the display object will not modify its course. Note: The display object doesn't stop moving once it reaches the destination coordinates.

Parameters:
Name Type Argument Default Description
displayObject any

The display object to move.
speed number <optional>
 60

The speed it will move, in pixels per second (default is 60 pixels/sec)
pointer Phaser.Pointer <optional>

The pointer to move towards. Defaults to Phaser.Input.activePointer.
maxTime number <optional>
 0

Time given in milliseconds (1000 = 1 sec). If set the speed is adjusted so the object will arrive at destination in the given number of ms.
Source:
Returns:

The angle (in radians) that the object should be visually set to in order to match its new velocity.

Type
number

moveToXY(displayObject, x, y, speed, maxTime) → {number}

Move the given display object towards the x/y coordinates at a steady velocity. If you specify a maxTime then it will adjust the speed (over-writing what you set) so it arrives at the destination in that number of seconds. Timings are approximate due to the way browser timers work. Allow for a variance of +- 50ms. Note: The display object does not continuously track the target. If the target changes location during transit the display object will not modify its course. Note: The display object doesn't stop moving once it reaches the destination coordinates. Note: Doesn't take into account acceleration, maxVelocity or drag (if you've set drag or acceleration too high this object may not move at all)

Parameters:
Name Type Argument Default Description
displayObject any

The display object to move.
x number

The x coordinate to move towards.
y number

The y coordinate to move towards.
speed number <optional>
 60

The speed it will move, in pixels per second (default is 60 pixels/sec)
maxTime number <optional>
 0

Time given in milliseconds (1000 = 1 sec). If set the speed is adjusted so the object will arrive at destination in the given number of ms.
Source:
Returns:

The angle (in radians) that the object should be visually set to in order to match its new velocity.

Type
number

overlap(object1, object2) → {boolean}

Checks if two Sprite objects overlap.

Parameters:
Name Type Description
object1 Phaser.Sprite

The first object to check. Can be an instance of Phaser.Sprite or anything that extends it.
object2 Phaser.Sprite

The second object to check. Can be an instance of Phaser.Sprite or anything that extends it.
Source:
Returns:

true if the two objects overlap.

Type
boolean

<protected> postUpdate()

Called automatically by the core game loop.

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<protected> postUpdate()

Internal method.

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<protected> preUpdate()

Called automatically by the core game loop.

Source:

<protected> preUpdate()

Internal method.

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reset()

Resets all Body values (velocity, acceleration, rotation, etc)

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separate(body1, body2) → {boolean}

The core separation function to separate two physics bodies.

Parameters:
Name Type Description
body1 Phaser.Physics.Arcade.Body

The Body object to separate.
body2 Phaser.Physics.Arcade.Body

The Body object to separate.
Source:
Returns:

Returns true if the bodies were separated, otherwise false.

Type
boolean

separateTile(body1, tile) → {boolean}

The core separation function to separate a physics body and a tile.

Parameters:
Name Type Description
body1 Phaser.Physics.Arcade.Body

The Body object to separate.
tile Phaser.Tile

The tile to collide against.
Source:
Returns:

Returns true if the bodies were separated, otherwise false.

Type
boolean

separateTileX(body1, tile) → {boolean}

The core separation function to separate a physics body and a tile on the x axis.

Parameters:
Name Type Description
body1 Phaser.Physics.Arcade.Body

The Body object to separate.
tile Phaser.Tile

The tile to collide against.
Source:
Returns:

Returns true if the bodies were separated, otherwise false.

Type
boolean

separateTileY(body1, tile) → {boolean}

The core separation function to separate a physics body and a tile on the x axis.

Parameters:
Name Type Description
body1 Phaser.Physics.Arcade.Body

The Body object to separate.
tile Phaser.Tile

The tile to collide against.
Source:
Returns:

Returns true if the bodies were separated, otherwise false.

Type
boolean

separateX(body1, body2) → {boolean}

The core separation function to separate two physics bodies on the x axis.

Parameters:
Name Type Description
body1 Phaser.Physics.Arcade.Body

The Body object to separate.
body2 Phaser.Physics.Arcade.Body

The Body object to separate.
Source:
Returns:

Returns true if the bodies were separated, otherwise false.

Type
boolean

separateY(body1, body2) → {boolean}

The core separation function to separate two physics bodies on the y axis.

Parameters:
Name Type Description
body1 Phaser.Physics.Arcade.Body

The Body object to separate.
body2 Phaser.Physics.Arcade.Body

The Body object to separate.
Source:
Returns:

Returns true if the bodies were separated, otherwise false.

Type
boolean

setSize(width, height, offsetX, offsetY)

You can modify the size of the physics Body to be any dimension you need. So it could be smaller or larger than the parent Sprite. You can also control the x and y offset, which is the position of the Body relative to the top-left of the Sprite.

Parameters:
Name Type Description
width number

The width of the Body.
height number

The height of the Body.
offsetX number

The X offset of the Body from the Sprite position.
offsetY number

The Y offset of the Body from the Sprite position.
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<protected> updateBounds()

Internal method.

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<protected> updateHulls()

Internal method.

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updateMotion(The)

Called automatically by a Physics body, it updates all motion related values on the Body.

Parameters:
Name Type Description
The Phaser.Physics.Arcade.Body

Body object to be updated.
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velocityFromAngle(angle, speed, point) → {Phaser.Point}

Given the angle (in degrees) and 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.

Parameters:
Name Type Argument Default Description
angle number

The angle in degrees calculated in clockwise positive direction (down = 90 degrees positive, right = 0 degrees positive, up = 90 degrees negative)
speed number <optional>
 60

The speed it will move, in pixels per second sq.
point Phaser.Point | object <optional>

The Point object in which the x and y properties will be set to the calculated velocity.
Source:
Returns:
  • A Point where point.x contains the velocity x value and point.y contains the velocity y value.
Type
Phaser.Point

velocityFromRotation(rotation, speed, point) → {Phaser.Point}

Given the rotation (in radians) and 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: velocityFromRotation(rotation, 200, sprite.velocity) which will set the values directly to the sprites velocity and not create a new Point object.

Parameters:
Name Type Argument Default Description
rotation number

The angle in radians.
speed number <optional>
 60

The speed it will move, in pixels per second sq.
point Phaser.Point | object <optional>

The Point object in which the x and y properties will be set to the calculated velocity.
Source:
Returns:
  • A Point where point.x contains the velocity x value and point.y contains the velocity y value.
Type
Phaser.Point
Phaser Copyright © 2012-2013 Photon Storm Ltd.
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