Ygdrasil - nodeTrigger

nodeTrigger derived from ygSpace

Description: a space that generates position events in the presence of a node type

notes:

derived nodes inherit all messages from their base classes
see reset method for default settings
this node generates events with the name of the node detected
the position mode determines if the node position is local to the object or relative to world coordinates

Category: Trigger
Author: Dave Pape
11/01/01
Revision: 09/01/04 Alex Hill - changed to detect by actual class name instead of alias used to create the node

Messages

detect	class	set the type of node to detect
local	[bool]	set position reporting mode

Events

enter	node	the node has entered the space
inside	node, xpos, ypos, zpos	a node is inside the space
exit	node	the node has exited the space

Debugs

inside

Comments

constructor nodeTrigger

destructor ~nodeTrigger

method reset

1 clear set of nodes previously inside
2 set reporting mode to local

method message

1 set the type of node to detect
2 set position reporting mode

method setDetectType

method app

1 for each node of detect type in the world

1.1 if node is within the space

1.1.1 add to set of nodes inside
1.1.2 if inside but not previously then generate enter event

1.1.2.1 the node has entered the space

1.1.3 a node is inside the space

2 for each node previously inside

2.1 if not currently inside then generate exit event

3 the node has exited the space