API Docs for: 0.1.0
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zerk.game.engine.system.sprite Class

Extends zerk.game.engine.system
Defined in: src/zerk/class/game/engine/system/sprite.js:1
Module: zerk

Sprite Systems

Renders sprites.

Methods

__getBodyBufferSize

(
  • entity
  • body
)
Object protected

Defined in src/zerk/class/game/engine/system/sprite.js:206

Calculate buffer size of a body

Parameters:

Returns:

Object: An object containing width and height

_getConfigDefaults

() Object protected

Inherited from zerk.game.engine.system: src/zerk/class/game/engine/system.js:222

Returns the configuration defaults of the system

Returns:

Object: Default configuration

_getFixtureBufferSize

(
  • entity
  • body
  • fixture
)
Object protected

Defined in src/zerk/class/game/engine/system/sprite.js:251

Calculate buffer size of a fixture

Parameters:

Returns:

Object: An object containing width and height

_getSystem

(
  • name
)
zerk.game.engine.system protected

Inherited from zerk.game.engine.system: src/zerk/class/game/engine/system.js:231

Returns system by given name

This method is used to communicate with other systems.

Parameters:

  • name String

    System name

Returns:

zerk.game.engine.system: System instance

_log

(
  • message
  • severity
)
protected

Inherited from zerk.game.engine.system: src/zerk/class/game/engine/system.js:247

Local log method

Parameters:

  • message String

    Log message

  • severity Integer

    Log severity

_renderBody

(
  • entity
  • body
)
protected

Defined in src/zerk/class/game/engine/system/sprite.js:370

Renders a body onto the game canvas

Parameters:

_renderEntity

(
  • entity
)
protected

Defined in src/zerk/class/game/engine/system/sprite.js:185

Renders an entity onto the game canvas

Parameters:

_renderFixture

(
  • entity
  • body
  • fixture
)
protected

Defined in src/zerk/class/game/engine/system/sprite.js:413

Renders a fixture onto the body buffer canvas

Parameters:

_renderFixtureBoundingCircle

(
  • entity
  • body
  • fixture
)
protected

Defined in src/zerk/class/game/engine/system/sprite.js:526

Renders the bounding area for a circle shaped fixture

Parameters:

_renderFixtureBoundingPolygon

(
  • entity
  • body
  • fixture
)
protected

Defined in src/zerk/class/game/engine/system/sprite.js:550

Renders the bounding area for a polygon shaped fixture

Parameters:

_renderFixtureBoundingShape

(
  • entity
  • body
  • fixture
)
protected

Defined in src/zerk/class/game/engine/system/sprite.js:459

Renders a shape indicating the bounding area of a fixture

Delegate method for the fixture bounding shape methods.

Parameters:

_renderFixtureBoundingShape

(
  • entity
  • body
  • fixture
)
protected

Defined in src/zerk/class/game/engine/system/sprite.js:486

Renders the bounding area for a box shaped fixture

Parameters:

_renderSprite

(
  • entity
  • body
  • fixture
  • sprite
)
protected

Defined in src/zerk/class/game/engine/system/sprite.js:580

Render sprite

Parameters:

addEntity

(
  • entity
)

Inherited from zerk.game.engine.system but overwritten in src/zerk/class/game/engine/system/sprite.js:113

Adds an entity to the system

Parameters:

fireEvent

(
  • event
)
Boolen

Inherited from zerk.observable: src/zerk/class/observable.js:112

Fire event

Parameters:

  • event String

    Event name

Returns:

Boolen: Returns false when the bubble was canceled

getName

() String

Inherited from zerk.game.engine.system: src/zerk/class/game/engine/system.js:128

Returns the name of the system

Returns:

String: System name

getPriority

() Integer

Inherited from zerk.game.engine.system: src/zerk/class/game/engine/system.js:140

Returns the priority of the system

Returns:

Integer: System priority

getThread

() String

Inherited from zerk.game.engine.system: src/zerk/class/game/engine/system.js:116

Returns the thread the systems runs in

Returns:

String: Thread name

init

(
  • engine
  • config
)

Inherited from zerk.observable but overwritten in src/zerk/class/game/engine/system/sprite.js:54

Class constructor

Parameters:

on

(
  • event
  • callback
  • scope
)

Inherited from zerk.observable: src/zerk/class/observable.js:38

Register event handler

Parameters:

  • event String

    Event name

  • callback Function

    Callback function. Return false to cancel event bubble.

  • scope Object

    Scope to be used in callback function

removeEntity

(
  • entity
)

Inherited from zerk.game.engine.system: src/zerk/class/game/engine/system.js:164

Removes an entity from the system

Parameters:

start

()

Inherited from zerk.game.engine.system but overwritten in src/zerk/class/game/engine/system/sprite.js:85

Starts the system

stop

()

Inherited from zerk.game.engine.system but overwritten in src/zerk/class/game/engine/system/sprite.js:99

Stops the system

un

(
  • event
  • callback
)
Boolen

Inherited from zerk.observable: src/zerk/class/observable.js:80

Unregister event handler

Parameters:

  • event String

    Event name

  • callback Function

    Callback function

Returns:

Boolen: Returns true on success

update

()

Inherited from zerk.game.engine.system but overwritten in src/zerk/class/game/engine/system/sprite.js:154

Updates the system

useComponent

(
  • name
)
Boolean

Inherited from zerk.game.engine.system but overwritten in src/zerk/class/game/engine/system/sprite.js:72

Returns true when the system is interested in given component

Parameters:

  • name String

    Component name

Returns:

Boolean: True when the system is intereseted in given component

Properties

_config

Object protected

Inherited from zerk.game.engine.system: src/zerk/class/game/engine/system.js:77

System configuration

_engine

zerk.game.engine protected

Inherited from zerk.game.engine.system: src/zerk/class/game/engine/system.js:55

Engine instance

Back reference to the engine instance.

_entities

Array protected

Inherited from zerk.game.engine.system: src/zerk/class/game/engine/system.js:66

Entities register

Entities that this system is interested in.

_eventListeners

Array protected

Inherited from zerk.observable: src/zerk/class/observable.js:18

List of event handlers

_name

String protected

Inherited from zerk.game.engine.system but overwritten in src/zerk/class/game/engine/system/sprite.js:18

Name of the system

_priority

Integer protected

Inherited from zerk.game.engine.system but overwritten in src/zerk/class/game/engine/system/sprite.js:36

Priority of this system

_thread

String protected

Inherited from zerk.game.engine.system but overwritten in src/zerk/class/game/engine/system/sprite.js:27

Thread that runs this system

_viewport

zerk.game.engine.system.viewport protected

Defined in src/zerk/class/game/engine/system/sprite.js:45

Viewport system instance