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Mouse position?
http://45.55.195.193/viewtopic.php?f=73&t=17162		 Page 1 of 1
Author:  DSMK2 [ Thu Nov 19, 2009 4:54 pm ]
Post subject:  Mouse position?
How do I get mouse position? Something sort of finding the point where the sharp aim dots are.

As well, how do I get forward vectors of an object? And playing sounds via lua.
Author:  CaveCricket48 [ Thu Nov 19, 2009 11:39 pm ]
Post subject:  Re: Mouse position?
Quote:
How do I get mouse position? Something sort of finding the point where the sharp aim dots are.
I don't know this, although I have always been wondering about it.


Quote:
As well, how do I get forward vectors of an object?
Do you mean how fast something is going in its direction? That would be "object.Vel.Magnitude"


Quote:
And playing sounds via lua.
Currently, the only way is to spawn something that would make a sound, no pure Lua method. Who ever made the base teleporters spawn an emitter with the burst sound for the sound, which seems like the simplest option to me.
Author:  DSMK2 [ Thu Nov 19, 2009 11:47 pm ]
Post subject:  Re: Mouse position?
I'm meaning the from point A and the vector going to point B, I'm using this in the CastObstacleRay function.
Author:  CaveCricket48 [ Fri Nov 20, 2009 1:02 am ]
Post subject:  Re: Mouse position?
Code:
object.Vel = Vector(pointB.X-pointA.X,pointB.Y-pointA.Y):SetMagnitude(#);


Replace # with the speed you want.
Author:  DSMK2 [ Fri Nov 20, 2009 2:17 am ]
Post subject:  Re: Mouse position?
Code:
function Update(self)

   self.Pos = self.owner.Pos + Vector(0,-50);
   self.Vel = self.owner.Vel;
   if self:IsEmitting() == true then
      self:EnableEmission(false);
   end
   --self.RotAngle = self.Owner:GetAimAngle(false);
   if self.ToSettle == true then
      self.toDelete = true;
      self.owner.gunpodOn = false;
   end
   --if self.owner:IsPlayerControlled() == false then
      --Fing a target not on same team
       local curdist = 500;
       for actor in MovableMan.Actors do
         local avgx = actor.Pos.X - self.Pos.X;
         local avgy = actor.Pos.Y - self.Pos.Y;
         local dist = math.sqrt(avgx ^ 2 + avgy ^ 2);
         if dist < curdist and actor.Team ~= self.Team then
            curdist = dist;
            self.target = actor;
         end
      end
      --local targetdir = math.atan2(-(self.target.Pos.Y-self.Pos.Y),(self.target.Pos.X-self.Pos.X));
      --RayDistance = SceneMan:CastObstacleRay(self.Pos, self.target.Pos, Vector(0, 0), Vector(0, 0), self.ID, 0, 5);
      --TargetDist = math.sqrt((self.target.Pos.X-self.Pos.X)^2 + (self.target.Pos.Y-self.Pos.Y)^2);
      --print(RayDistance);
      --print(TargetDist);
      if MovableMan:IsActor(self.target) then --and RayDistance >= TargetDist then
         --The direction from the center of the missile to the target.
         local targetdir = math.atan2(-(self.target.Pos.Y-self.Pos.Y),(self.target.Pos.X-self.Pos.X));
         
         if targetdir ~= self.RotAngle then
            self.RotAngle = targetdir;
         end
         if self:IsEmitting() == false then
            self:EnableEmission(true);
         end
      else
   
         self.HFlipped = self.owner.HFlipped;
         self.RotAngle = 0;
         if self:IsEmitting() == true then
            self:EnableEmission(false);
         end
      end
   --elseif self.owner:IsPlayerControlled() == true then
      --self.HFlipped = self.owner.HFlipped;
   --end
   
   --If owner is dead, gib self.
   
   if self.owner:IsDead() == true then
      self.ToDelete = true;
   end
end


I'm basically doing a helper gunpod, but I'm trying to get it so that it can only shoot at what it can "see" hence the want for the castobstacleray, I need it to check if there's anything between the target and the gunpod. So it won't shoot though walls, shoot the owner...
Author:  CaveCricket48 [ Fri Nov 20, 2009 2:29 am ]
Post subject:  Re: Mouse position?
A StrengthRay would work in place of an ObstacleRay.

This would work for you:

Code:
local terrcheck = Vector(0,0);
if not(SceneMan:CastStrengthRay(self.Pos,Vector(self.target.Pos.X-self.Pos.X,self.target.Pos.Y-self.Pos.Y):SetMagnitude(500),0,terrcheck,3,0,true)) then
Author:  DSMK2 [ Fri Nov 20, 2009 4:16 am ]
Post subject:  Re: Mouse position?
Alright works, but why not ObstacleRay? Just wondering.
Author:  CaveCricket48 [ Fri Nov 20, 2009 11:25 pm ]
Post subject:  Re: Mouse position?
No real reason, just that I have no experience with ObstacleRays. BTW, I thought about this a little bit at school, and you should try:

Code:
local terrcheck = Vector(0,0);
if not(SceneMan:CastStrengthRay(self.Pos,Vector(self.target.Pos.X-self.Pos.X,self.target.Pos.Y-self.Pos.Y),0,terrcheck,3,0,true)) then


The previous version would cast the ray too long and the turret may not fire at enemies in front of walls.
Author:  DSMK2 [ Fri Nov 20, 2009 11:56 pm ]
Post subject:  Re: Mouse position?
Works better, but it doesn't seem to check if the owner is between it and the target, had it eat the head off... Is it good to use a MORay with it? So if the parent's ID is returned...
Author:  CaveCricket48 [ Sat Nov 21, 2009 12:08 am ]
Post subject:  Re: Mouse position?
Yes, MORays would work too. Be sure to set the "material ID to ignore" to 0.
Author:  DSMK2 [ Thu Nov 26, 2009 2:07 am ]
Post subject:  Re: Mouse position?
Working on another lua based weapon now, what's the property name for MOSRotatings in the moveable manager?
Author:  Grif [ Thu Nov 26, 2009 3:09 am ]
Post subject:  Re: Mouse position?
MovableMan.Particles, and then check for if particle.ClassName == "MOSRotating"
Author:  DSMK2 [ Thu Nov 26, 2009 4:40 am ]
Post subject:  Re: Mouse position?
What if I want to run a function like GibThis(); How does type casting happen in lua?
Author:  Grif [ Thu Nov 26, 2009 4:41 am ]
Post subject:  Re: Mouse position?
I'd do
for particle in MovableMan.Particles do
if particle.ClassName == "MOSRotating" then
<insert supplementary checks here>
mosr = ToMOSRotating(particle);
mosr:GibThis();
end
end
Author:  DSMK2 [ Thu Nov 26, 2009 4:50 am ]
Post subject:  Re: Mouse position?
Hrm funky, no errors, but I'm trying to get this to gib pretty much any object that's a subclass of MOSRotatings, so far its doing nothing.

Code:
function Create(self)
   local curdist = 33;
   for particle in MovableMan.Particles do
   local avgx = particle.Pos.X - self.Pos.X;
   local avgy = particle.Pos.Y - self.Pos.Y;
   local dist = math.sqrt(avgx ^ 2 + avgy ^ 2);
   if dist < curdist and (particle.ClassName == "MOSRotating") then
      mosr = ToMOSRotating(particle);
      mosr:GibThis();
   end
    end
end

function Update(self)
   local curdist = 33;
   for particle in MovableMan.Particles do
   local avgx = particle.Pos.X - self.Pos.X;
   local avgy = particle.Pos.Y - self.Pos.Y;
   local dist = math.sqrt(avgx ^ 2 + avgy ^ 2);
   if dist < curdist and (particle.ClassName == "MOSRotating") then
      mosr = ToMOSRotating(particle);
      mosr:GibThis();
   end
    end
end
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