How to interact with terrain vegetation?

[Tomas]

.....
if self.camera:Pick(mousepos.x,mousepos.y,pickinfo) then
   self.picked_entity=pickinfo.entity
   if window:KeyDown(Key.L) then
   pickinfo.entity:Turn(0,Time:GetSpeed()*0.5,0)
   end
end
......

Hi is it possible in any ways to inerract with terrain vegetation, like trees? I want trees to be cuttable, is there any way to do this? I tried picking, it picks the tree but any interaction like moving, hiding, rotating wont work

[AggrorJorn]

Haven't tested it, but I assume you send a raycast from your player or camera. Although I don't know if you get the actual entity with the vegatation system.

[Tomas]

I used a variable for picking and when a cursor was on the tree it was positive, also the tree material picking flag is set. I assume that picking is possible, but is it possible to ineract like change rotation?

...
if self.camera:Pick(mousepos.x,mousepos.y,pickinfo) then
self.picked_entity=pickinfo.entity
if window:KeyDown(Key.L) then
 self.ok_picked=1
 --pickinfo.entity:Hide()
 pickinfo.entity:Turn(0,Time:GetSpeed()*0.5,0)
else
 self.ok_picked=0
end
end
...

 

self.ok_picked ws positive when cursor was on the tree

[AggrorJorn]

What is the content of the pickinfo,entity when you pick a tree? If it is a normal entity, you can use all the normal entity API functions.

[Tomas]

How can i check this? I mean content..

[AggrorJorn]

Well you could print its content to the output screen.

You could retrieve its position, see if that is correct:

pickinfo.entity:GetPosition()

 

You can also enter debug mode (f5) and see what the content is. Ofcourse you need to set a breakpoint

[Tomas]

pickinfo.entity:GetPosition() does not report any values (all 0)

[AggrorJorn]

It might be possible that since you are using the vegetation system, the trees are not common entities. Placing trees by hand via the asset tree, will probably resolve that issue but has the down side of custom tree management.

[Tomas]

but it has to be some entity this reports true:

if self.picked_entity then
context:DrawText("Picked".."entity",10,60)
else
context:DrawText("Picked ".."nothing",10,60)
end

[AggrorJorn]

And what does: pickinfo.entity:SetColor(1,0,0)? Does it paint the tree red?

[Tomas]

no it doesnt. Have to hurry to work, talk to u later...

[Genebris]

Try GetClass to understand what picking returns, it will probably be terrain class.

http://www.leadwerks.com/werkspace/page/documentation/_/object/objectgetclass-r19

[AggrorJorn]

See Ricks answer in this post. Somewhere in the bottom he also mentions this.

http://www.leadwerks.com/werkspace/topic/13941-scenes-and-stuff/page__hl__chop%20tree#entry96038

[Tomas]

ID=30 for terrain vegetation tree. Which is not docummented. Some "x" class. Terrain is 20 and model is 2.

[Tomas]

I think any manipulation is not possible, since vegetation is not stored in memory but uses drawing algorithm which draws entities dynamically every frame depending on seed....