Crank Gaming Engine

API quick reference

class Point (x, y [,ref={x: 0, y: 0}])

• Properties
  • x
  • y
  • a
  • r
• Methods
  • draw(ctx)

class Circle (r [,ref={x: 0, y: 0}])

• Properties
  • a
  • b
  • r
  • center
• Methods
  • has(pt)
  • intersections(ln)
  • collidesWith(other)
  • draw(ctx)

class Line (pt1, pt2)

• Properties
  • m
  • b
  • length
  • domain
  • range
  • pts
• Methods
  • has(pt)
  • intersection(ln)
  • draw(ctx)

class Polygon (...pts)

• Properties
  • n
  • r
  • center
  • domain
  • range
  • pts
  • lns
• Methods
  • has(pt)
  • collidesWith(other)
  • draw(ctx)

class Emitter (maxListeners=10)

• Properties
  • events
  • maxListeners
• Methods
  • on(event, listener)
  • once(event, listener)
  • emit(event [,...args])
  • remove(event, listener)

class Vector (mag, angle)

• Properties
  • xComp
  • yComp
  • mag
  • angle
• Methods
  • plus(other)
  • minus(other)
  • scale(value)
  • dot(other)

class Sprite(config={})

• Static Properties
  • defaults
  • all
  • groups
  • zLevels
  • DIE
  • WRAP
  • STOP
  • BOUNCE
• Static Methods
  • delete(sprite)
  • clear()
• Properties
  • x
  • dx
  • y
  • dy
  • z
  • angle
  • disp
  • vel
  • left
  • right
  • top
  • bottom
  • scale
  • edge
  • img
  • visible
• Methods
  • distanceTo(other)
  • angleTo(other)
  • collidesWith(other)
  • draw()
  • update()

class HeavySprite(config={})

• Static Properties
  • defaults
• Properties
  • ddx
  • ddy
  • acc
  • mass
  • p
• Methods
  • applyForce(frc)
  • update()

Crank - Emitter instance

• Properties
  • left
  • right
  • top
  • bottom
  • mouse
  • canvas
  • ctx
  • isRunning
  • frameRate
• Methods
  • start()
  • stop()
  • clear()
  • isDown(key)