Light Hide() Show()

[YouGroove]

Does this works with lights ? i have some code that makes game crash, perhaps i odn't use it well ?

 

Here si the script attached to a light (target is the player object like done in Camera script for example)

 

Script.minDistance = 5.0--float
Script.framecounter = 0
Script.target = nil--Entity "Target"



function Script:UpdateWorld()
       self.framecounter = self.framecounter +1 
    if self.framecounter > 10   then 
         local dist = self.entity:GetDistanceToEntity(self.target.entity)
          if dist > self.minDistance then
               self.entity:Hide()
         else
              self.entity:Show()
         end
         self.framecounter = 0
    end
end

[Rick]

You only need self.target I think and not self.target.entity. The target is the entity already.

[YouGroove]

It's old GoblinAI code, so here is some code usefull for the WIKI

 

 

Script.minDistance = 5.0--float
Script.framecounter = 0
Script.target = nil--Entity "Target"


function Script:UpdateWorld()
          self.framecounter = self.framecounter +1
          if self.framecounter > 10 then
                     local dist = self.entity:GetDistance(self.target)
                     if dist > self.minDistance then
                                self.entity:Hide()
                     else
                                self.entity:Show()
                     end
                     self.framecounter = 0
          end
end

 

Not the optimisation with framecounter : no need to check each frame, each 10 frames or more for some half second is enought.

[AggrorJorn]

If you don't want to let it check the code every frame update, then you can also use UpdatePhysics().

[Rick]

Does doing a frame count on when to do a distance check really matter? Feels like you are trying to optimize something that doesn't really need it at this time, and possibly never.

[shadmar]

I still can't get this to work : http://www.leadwerks.com/werkspace/topic/8138-pointlight-viewrange-bug/

[YouGroove]

@Rick: without optimisation, on the level when you see only 2 or 5 lights, it's displayed 10-15 or more are displayed and calculated, i increased frame rate from 10-17 to 25-40 with such FPS view.

 

You can check lights every half second, instead of each frame, so a counter helps.

Distance is not a lot eating CPU, but if you had to calculate some Navigation path to check something, indeed you will not call it each frame.