gma.moveable

Provides functionality for a moveable shape

Package	gma/entities/moveable
Inheritance chain	gma.shapes.rectangle
Descendants	gma.character, gma.enemy, gma.platformEnemy, gma.jumpingEnemy, gma.patrolEnemy

Tags

shape, moveable

Properties

Inherited from gma.shapes.rectangle

points, edges, width, height, depth, z, x, y, centre, left, right, top, bottom, yOffset, xOffset, type, alive, solid, tags

yState

Flag saying whether character is jumping, falling or neither

Type	gma.constant
Default	FALLING

xState

Flag saying whether character is going left, right or neither

Type	gma.constant
Default	STILL

lastXState

Flag saying what direction character was going last before becoming horizontally still

Type	gma.constant
Default	self.xState

velocity

Number representing how fast the character is moving vertically

Type	Number
Default	0

jumpVelocity

Number representing the initial velocity of a jump

Type	Number
Default	4

Methods

Inherited from gma.shapes.rectangle

setPointsAndEdges, setCentre, setBottomLeft, xOf, yOf, toString, collided, collided__deathtouch

getMovement (moveAmount) -> Amount to move as [x, y]

Looks at the character’s state and determines how far it should move

This result will then be checked for collisions and may be modified

If the character is jumping :

• Keep going up if haven’t reached targetY

• else set vertical state to FALLING

If we’re falling, then we go down

If horizontal state is not STILL, then we add horizontal movement.

Parameters
moveAmount	Number	The amount the character should move

animate (delta, manager)

Changes character’s position according to it’s state

First it asks getMovement how much we should move

Then it determines how far we can move given the environment

It will then change the state of the character accordingly

It will then determine if the character is on top of ground

and set vertical state to FALLING or STILL accordingly

Parameters
delta	Number	Time since last animation
manager	gma.manager

findGround (manager)

Finds any ground the character is on and changes state accordingly

Parameters
manager	gma.manager

updatePositions (vector)

Changes it’s position, centre, points and edges.

Parameters
vector	[x, y]	Vector representing the amount character can move

getRotation ( ) -> Number

Gets rotation in radians

kill ( )

Kills the entity. Should be overwritten to do something useful.