LE 3 simple distance check functions:

[YouGroove]

I would want to check distance between player and goblin with a simple Cylinder check.

 

Does some people knwo how to do that in Lua :

If a point is inside a 2D circle (the point is the barbarian origin, the owner of the circle center is the goblin)

 

 

I'll do simple bouding box check also : a point inside a box volume.

 

I find these way of doing lot more simple than the AABB stuff i seen in GoblinAI , even with good explanation i dunderstand , but why calling that when you can just makeit simple ?

Perhaps it is same in terms of speed ?

 

Another point of optimisation is to check distance only each 5 or 15 frames, it's not a simulation game.

[Canardia]

Distance is calculated by simply getting the squareroot of the sum of the squared differences of 2 entity's positions:

distance = sqrt( ((p2.x-p1.x)*(p2.x-p1.x)) + ((p2.y-p1.y)*(p2.y-p1.y)) + ((p2.z-p1.z)*(p2.z-p1.z)) )

http://en.wikipedia.org/wiki/Euclidean_distance

[cassius]

Could someone show us an EntityDistance function ( in code) lua or c++

[Rastar]

Josh was mentioning something here:

 

http://www.leadwerks.com/werkspace/topic/5987-le-3-question/#entry51770

[Canardia]

Could someone show us an EntityDistance function ( in code) lua or c++

The code I posted is the entitydistance.

[YouGroove]

Great ,

DistanceToPoint will do it.

thanks

[cassius]

distance = sqrt( ((p2.x-p1.x)*(p2.x-p1.x)) + ((p2.y-p1.y)*(p2.y-p1.y)) + ((p2.z-p1.z)*(p2.z-p1.z)) )

 

How would I relate this code to Entity_1 Entity_2?

[Josh]

C++

Vec3 position = entity->GetPosition(true);
float dist = position.DistanceToPoint(otherentity->GetPosition(true));

 

Lua:

local position = entity:GetPosition(true)

local dist = position:DistanceToPoint( otherentity:GetPosition(true) )