/// <summary>
/// Check whether or not a sphere
/// </summary>
/// <param name="Sphere">The sphere to test</param>
/// <returns>True if the sphere intersects, false otherwise.</returns>
public bool IsBoundingSphereIntersecting(BoundingSphere Sphere, out Vector3 triangleNormal)
{
triangleNormal = Vector3.Zero;
Matrix world = GetModelMatrix();
for (int i = 0; i < _trianglesPositions.Count; i++)
{
Triangle triangleToTest = _trianglesPositions[i].NewByMatrix(world);
if (TriangleTest.Intersects(ref Sphere, ref triangleToTest))
{
triangleNormal = _trianglesNormal[i];
return(true);
}
}
return(false);
}
public static float?CheckRayIntersectsModel(Ray ray, out int modelId, float damage = -1, float range = 0f)
{
Dictionary <int, float> modelsClicked = new Dictionary <int, float>();
for (int i = 0; i < modelsList.Count; i++)
{
Matrix modelWorld = modelsList[i].GetModelMatrix();
foreach (Triangle tri in modelsList[i]._trianglesPositions)
{
Triangle triangle = tri.NewByMatrix(modelWorld);
float? distance = TriangleTest.Intersects(ref ray, ref triangle);
if (distance != null)
{
modelsClicked.Add(i, (float)distance);
break;
}
}
}
if (modelsClicked.Count == 0)
{
modelId = -1;
return(null);
}
var closest = (from pair in modelsClicked
orderby pair.Value ascending
select pair).First();
modelId = closest.Key;
if (range != 0 && closest.Value > range)
{
return(null);
}
if (modelsList[modelId]._Explodable && damage > -1)
{
modelsList[modelId].SetDamageToModel(damage);
}
return(closest.Value);
}
public int?RayIntersectsAxis(Ray ray, string gizmo)
{
if (gizmo == "pos")
{
GenerateBoundingBoxes();
for (int i = 0; i < 3; i++)
{
if (ray.Intersects(boxesPos[i]) != null)
{
return(i);
}
}
}
else if (gizmo == "rot")
{
foreach (Triangle tri in rotGizmo.GetRealTriangles())
{
Triangle testedTriangle = tri;
if (TriangleTest.Intersects(ref ray, ref testedTriangle) != null)
{
if (tri.TriName == "R")
{
return(0);
}
else if (tri.TriName == "G")
{
return(1);
}
else
{
return(2);
}
}
}
}
else if (gizmo == "scale")
{
foreach (Triangle tri in scaleGizmo.GetRealTriangles())
{
Triangle testedTriangle = tri;
if (TriangleTest.Intersects(ref ray, ref testedTriangle) != null)
{
if (tri.TriName == "R")
{
return(0);
}
else if (tri.TriName == "G")
{
return(1);
}
else if (tri.TriName == "B")
{
return(2);
}
else
{
return(3);
}
}
}
}
return(null);
}