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Old 06-19-2006, 01:51 PM
paulpars paulpars is offline
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Join Date: May 2006
Location: Kingston, Ontario
Posts: 14
viz.look

i am confused as to how this works, and i can't find any documentation for it either...i am trying to create a vector out the front of the car i am driving in but the vector always goes out the back even when i'm driving forward... here's what my code looks like:

Code:
		#Get the car's current position.
		current = car.get(viz.POSITION)
		#Get the vector for the direction in which the car is positioned.
		vector = car.get(viz.LOOK)
		#Find the car's future position if it travels along the vector 30 meters.
		future = vizmat.MoveAlongVector(current, vector,30)
		#Draw a line between the current and future positions and 
		#see if it intersects anything.
		hit = viz.intersect(current, future)
		viz.startlayer(viz.LINE_LOOP)
		viz.vertexcolor(viz.RED)
		viz.vertex(current)
		viz.vertex(future)
		line = viz.endlayer()

thanks
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  #2  
Old 06-19-2006, 04:42 PM
Gladsomebeast Gladsomebeast is offline
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Join Date: Mar 2005
Location: Isla Vizta, CA
Posts: 397
To reverse the direction of a vector, multipy it by a negative. I would change the following in your code:

future = vizmat.MoveAlongVector(current, vector,-30) #added a negative sign
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