Terrain slope

#1 Try a raycast, it should return object(ID number), pos(XYZ), normal(XYZ). Then get the XY of the normal which will give you the slope angle in radians.

//start above terrain, end below terrain
%start = vectorAdd(%xyz, "0 0 1");//up a bit
%end = vectorSub(%xyz, "0 0 1");//down a bit

%masks = $TypeMasks::TerrainObjectType;

%scan = ContainerRayCast(%start, %end, %masks);
   
// If the terrain object was found in the scan
if( %scan != 0)
{
   echo(%scan);//all of it
   // Get the normal of the location we clicked on
   %norm = getWords(%scan, 4, 6);
			
   %x = getWord(%scan, 4);
   %y = getWord(%scan, 5);
			
   if(%x > 0.7 || %x < -0.7 || %y > 0.7 || %y < -0.7)
   {
      echo("angle is > 40 degrees");
   }
   else
   {
      echo("angle is < 40 degrees");
   }
}

So, something like that, check the .chm file in documentation folder for more info on raycasts if you need it.

#2 Thanks Steve,

Will give this a try tonight.

#3 I have a issue with this as well. I have a object that hits the ground (projectile actually) falls from the sky. When it hits the ground I want it to rotate to the slope of the terrain. The onCollision of the projectile gives me pos and normal (x,y,z) Since the projectile disappears I replace it with an object but when I create the object the rotation values are "1 0 0 0" which requires 4 numbers and I only have 3 from the %normal so how do I rotate the object so it lays on the side of the hill rather than half in half out ?

#4 Try calling %obj.setRotation() with the values from the normal. Should work - should face the object in the direction of the normal vector....

#5 Also, have a look at this resource: setForwardVector. You could simply set the forward vector of your object to the terrain's normal.