Chase (of `Motion`)¶

class Chase¶

Defined in Chase.sc.

A motion class that is used to make an Actor move until it is within a certain distance of another (possibly moving) object. Then it stops.

Example usage:

; Make the dog get within 20 pixels of the ego.
(aDog setMotion: Chase gEgo 20)

Note that this class doesn’t intelligently move the Actor around polygon obstacles. For that, use PChase.

Properties¶

Inherited from Motion:

Property	Description
client	The `Actor` to which this is attached.
caller	The object that will get cue()’d when the motion is complete.
x
y
dx
dy
b-moveCnt
b-i1
b-i2
b-di
b-xAxis
b-incr
completed
xLast
yLast
name

Defined in Chase:

Property	Description
who
distance

init(theClient theWho [theDistance theCaller])

Initializes the Chase instance.

Parameters:	theClient (heapPtr) – The `Actor` to which this is attached. theWho (heapPtr) – The target to chase. theDistance (number) – How close the client needs to get from the target. theCaller (heapPtr) – The object on which cue() will be called when the target is reached.