move towards point

Hi,
I’m looking for some routine, which turns, moves an entity towards a target point and one can supply a turn softening parameter, to indicate how fast the entity should turn towards the new target point. I know I have seen this kind of routine floating around here before and I did a search for it, but I can’t seem to find it. And I could probably also hack something like this together myself. But why reinventing the wheel? ;-)

Thanx a lot for any response!

Do you want the entity to turn and face the target before it moves and then stop within a certain distance of the target or do you want it to turn and move at the same time (i.e. like a car following a waypoint)?

Not tested this code but it should give you an idea of what you need to do?

global temp_pivot=createpivot()

function move_to_point(entity,x,y,z,turn_speed#=.01, move_speed#=.1, stop_range#=1)

positionentity temp_pivot,x,y,z

if entitydistance(entity,temp_pivot) > stop_range

yaw#=deltayaw(entity,temp_pivot)
pitch#=deltapitch(entity,temp_pivot)
turnentity entity , pitch*turn_speed , yaw*turn_speed,0
moveentity entity,0,0,move_speed

endif

end function

Function PointAtLocation(entity,x#,y#,z#,soft#)

mypiv = createpivot()
markerpiv = createpivot()

positionentity markerpiv,x,y,z
positionentity mypiv,entityx(entity),entityy(entity),entityz(entity)
entityparent mypiv,entity

pointentity mypiv,markerpiv

pit# = entitypitch(mypiv)
yaw# = entityyaw(mypiv)

turnentity entity,pit*soft,yaw*soft,0

freeentity mypiv
freeentity markerpiv

return sqr(pit*pit + yaw*yaw)

end function

this code will return how far from pointing at the target the entity is so you can move based on that information.

Thanks for the quick help guys!
I'll try the above code out.

try this too, but i think dark eagles is alot tidier :)

http://www.blitzbasic.com/bbs/posts.php?topic=24472