public static HullCollision2D detectCollisionResponse(OBBHull2D a, OBBHull2D b)
{
Dictionary <Vector2, float> axisValues = new Dictionary <Vector2, float>(); //norm to the overlap value
axisValues.Add(a.getXNormal(), checkAxisPenetration(a, b, a.getXNormal()));
axisValues.Add(a.getYNormal(), checkAxisPenetration(a, b, a.getYNormal()));
if (a.rotation != b.rotation)
{
axisValues.Add(b.getXNormal(), checkAxisPenetration(a, b, b.getXNormal()));
axisValues.Add(b.getYNormal(), checkAxisPenetration(a, b, b.getYNormal()));
}
Dictionary <Vector2, float> .Enumerator enumerator = axisValues.GetEnumerator();
enumerator.MoveNext();
Vector2 pos = a.position;
KeyValuePair <Vector2, float> bestPenetration = enumerator.Current; //need to set one to compare too, no null value to just allow all checking in the for loop
if (bestPenetration.Value == 0.0f)
{
return(null);
}
while (enumerator.MoveNext())
{
if (Mathf.Abs(enumerator.Current.Value) < Mathf.Abs(bestPenetration.Value))
{
bestPenetration = enumerator.Current;
}
if (bestPenetration.Value == 0.0f)
{
return(null);
}
}
HullCollision2D collision;
Vector2 norm = bestPenetration.Key;
if (bestPenetration.Value <= 0.0f) //ooh this was an easy thing to miss
{
norm *= -1.0f;
}
collision = new HullCollision2D(a, b, norm, Mathf.Abs(bestPenetration.Value));
//collision.contactPoint = pos;
return(collision);
}
public static HullCollision2D detectCollisionResponse(OBBHull2D a, AABBHull2D b)
{
Dictionary <Vector2, float> axisValues = new Dictionary <Vector2, float>(); //norm to the overlap value
axisValues.Add(Vector2.up, checkAxisPenetration(a, b, Vector2.up));
axisValues.Add(Vector2.right, checkAxisPenetration(a, b, Vector2.right));
if (a.rotation != 0.0f)
{
axisValues.Add(a.getXNormal(), checkAxisPenetration(a, b, a.getXNormal()));
axisValues.Add(a.getYNormal(), checkAxisPenetration(a, b, a.getYNormal()));
}
Dictionary <Vector2, float> .Enumerator enumerator = axisValues.GetEnumerator();
enumerator.MoveNext();
KeyValuePair <Vector2, float> bestPenetration = enumerator.Current; //need to set one to compare too, no null value to just allow all checking in the for loop
if (bestPenetration.Value == 0.0f)
{
return(null);
}
while (enumerator.MoveNext())
{
if (Mathf.Abs(enumerator.Current.Value) < Mathf.Abs(bestPenetration.Value))
{
bestPenetration = enumerator.Current;
}
if (bestPenetration.Value == 0.0f)
{
return(null);
}
}
HullCollision2D collision;
Vector2 norm = bestPenetration.Key;
if (Vector2.Dot(a.velocity, norm) >= 0.0f)
{
norm *= -1.0f;
}
collision = new HullCollision2D(a, b, norm, Mathf.Abs(bestPenetration.Value));
return(collision);
}
/*
* VERIFIED WORKING, based off OBB v OBB Collision
*/
public static bool detectCollision(OBBHull2D a, AABBHull2D b)
{
if (checkAxis(a, b, a.getXNormal()) &&
checkAxis(a, b, a.getYNormal()) &&
checkAxis(a, b, Vector2.left) &&
checkAxis(a, b, Vector2.up))
{
return(true);
}
return(false);
}
/*
* Verified Working, possible error in using 4 checkaxis, i think i missed a check somewhere deeper in the code
*/
public static bool detectCollision(OBBHull2D lft, OBBHull2D rgt)
{
//check each axis on each side, need to make better
if (checkAxis(lft, rgt, lft.getXNormal()) &&
checkAxis(lft, rgt, lft.getYNormal()) &&
checkAxis(lft, rgt, rgt.getXNormal()) &&
checkAxis(lft, rgt, rgt.getYNormal()))
{
return(true);
}
return(false);
}