public virtual MovementRestriction CheckForCollision()
{
Debug.Assert(!(this is MultiBodyPixelCollider));
Vector3 castStart = transform.position;
castStart.z = -10.0f;
RaycastHit2D[] castStar = Physics2D.CircleCastAll(castStart, GameSettings.inspectRadius * 10.0f, Vector2.zero);
MovementRestriction restriction = new MovementRestriction();
// Collided with floor
PixelRoom floor = transform.parent.parent.GetComponent <PixelRoom>();
Debug.Assert(floor != null);
Debug.Assert(floor.colliderPoints.Length == 4);
PixelBoxComparison cbc = PixelBox.CompareTwoCollisionBodies(collisionBodyWorld, floor.collisionbodyWorld, -2.0f);
if (!cbc.SEinside)
{
restriction.restrictSE = true;
}
if (!cbc.SWinside)
{
restriction.restrictSW = true;
}
if (!cbc.NEinside)
{
restriction.restrictNE = true;
}
if (!cbc.NWinside)
{
restriction.restrictNW = true;
}
// Collided with other object
foreach (RaycastHit2D raycastHit in castStar)
{
PixelCollider otherPixelCollider = raycastHit.collider.GetComponent <PixelCollider>();
if (otherPixelCollider == null)
{
continue;
}
if (otherPixelCollider.noCollision)
{
continue;
}
if (otherPixelCollider.ParentIsContainer())
{
continue;
}
if (!OtherPixelColliderSameParent(otherPixelCollider))
{
continue;
}
Transform otherTransform = otherPixelCollider.gameObject.transform;
if (otherPixelCollider is MultiBodyPixelCollider)
{
MultiBodyPixelCollider multi = otherPixelCollider as MultiBodyPixelCollider;
foreach (PixelBox cbody in multi.collisionBodiesWorld)
{
cbody.Draw(Color.white, 1.0f);
if (collisionBodyWorld.WithinRange(cbody, Direction.NW, 0.4f))
{
restriction.restrictNW = true;
}
if (collisionBodyWorld.WithinRange(cbody, Direction.NE, 0.4f))
{
restriction.restrictNE = true;
}
if (collisionBodyWorld.WithinRange(cbody, Direction.SW, 0.4f))
{
restriction.restrictSW = true;
}
if (collisionBodyWorld.WithinRange(cbody, Direction.SE, 0.4f))
{
restriction.restrictSE = true;
}
}
}
else if (otherPixelCollider is RampCollider)
{
Debug.Assert(otherPixelCollider.colliderPoints.Length == 4);
RampCollider rampCollider = (RampCollider)otherPixelCollider;
otherPixelCollider.collisionBodyWorld.Draw(Color.white, 1.0f);
if (collisionBodyWorld.WithinRange(otherPixelCollider.collisionBodyWorld, Direction.NW, 0.4f))
{
restriction.restrictNW = true;
}
if (collisionBodyWorld.WithinRange(otherPixelCollider.collisionBodyWorld, Direction.NE, 0.4f))
{
restriction.restrictNE = true;
}
if (collisionBodyWorld.WithinRange(otherPixelCollider.collisionBodyWorld, Direction.SW, 0.4f))
{
restriction.restrictSW = true;
}
if (collisionBodyWorld.WithinRange(otherPixelCollider.collisionBodyWorld, Direction.SE, 0.4f))
{
restriction.restrictSE = true;
}
// Comparison with actual box
PixelBoxComparison bodyComparison = PixelBox.CompareTwoCollisionBodies(collisionBodyWorld, rampCollider.collisionBodyWorld, 0.0f, true);
PixelBoxComparison proximityComparison = PixelBox.CompareTwoCollisionBodies(collisionBodyWorld, rampCollider.proximityBodyWorld, 0.0f, true);
// Close to the ramp collision (remove the wall collision) and prevent glitches
Direction proximityDirection = Direction.All;
if (collisionBodyWorld.WithinRange(otherPixelCollider.collisionBodyWorld, Direction.SE, navigationMargin, navigationMargin) &&
rampCollider.rampDirection == Direction.SE)
{
proximityDirection = Direction.SE;
}
if (collisionBodyWorld.WithinRange(otherPixelCollider.collisionBodyWorld, Direction.SW, navigationMargin, navigationMargin) &&
rampCollider.rampDirection == Direction.SW)
{
proximityDirection = Direction.SW;
}
if (collisionBodyWorld.WithinRange(otherPixelCollider.collisionBodyWorld, Direction.NE, navigationMargin, navigationMargin) &&
rampCollider.rampDirection == Direction.NE)
{
proximityDirection = Direction.NE;
}
if (collisionBodyWorld.WithinRange(otherPixelCollider.collisionBodyWorld, Direction.NW, navigationMargin, navigationMargin) &&
rampCollider.rampDirection == Direction.NW)
{
proximityDirection = Direction.NW;
}
// Entered the ramp
bool closeToRamp = proximityDirection != Direction.All;
// Free the character to go in that direction
if (proximityComparison.inside)
{
if (rampCollider.rampDirection == Direction.NE)
{
restriction.restrictNE = false;
}
else if (rampCollider.rampDirection == Direction.NW)
{
restriction.restrictNW = false;
}
else if (rampCollider.rampDirection == Direction.SE)
{
restriction.restrictSE = false;
}
else if (rampCollider.rampDirection == Direction.SW)
{
restriction.restrictSW = false;
}
}
// Check if entered ramp
withinProximityBox = rampCollider.proximityBodyWorld.WithinCollisionBody(transform.position);
if (withinProximityBox)
{
within = rampCollider.collisionBodyWorld.WithinCollisionBody(transform.position);
if (bodyComparison.overlap)
{
// Remove glitch caused by going to the side of the walls
if (rampCollider.rampDirection == Direction.NE || rampCollider.rampDirection == Direction.SW)
{
if (!proximityComparison.NWinside)
{
restriction.restrictNW = true;
}
if (!proximityComparison.SEinside)
{
restriction.restrictSE = true;
}
}
else if (rampCollider.rampDirection == Direction.NW || rampCollider.rampDirection == Direction.SE)
{
if (!proximityComparison.NEinside)
{
restriction.restrictNE = true;
}
if (!proximityComparison.SWinside)
{
restriction.restrictSW = true;
}
}
}
if (within)
{
rampCollider.OnEffectorEnter();
}
else
{
rampCollider.OnEffectorExit();
}
}
if (within)
{
// Draw the ramps
rampCollider.collisionBodyRampedWorld.Draw(Color.magenta, 2.0f);
PixelBox cramped = rampCollider.MatchCollisionBody(collisionBodyWorld);
cramped.Draw(Color.magenta, 2.0f);
// Ramp Collision mechanics
restriction.restrictNE = false;
restriction.restrictNW = false;
restriction.restrictSE = false;
restriction.restrictSW = false;
// Collision with side of ramp
PixelBoxComparison cbcRamp = PixelBox.CompareTwoCollisionBodies(cramped, rampCollider.collisionBodyRampedWorld, -2.0f);
if (!cbcRamp.SEinside && rampCollider.rampDirection != Direction.NW)
{
restriction.restrictSE = true;
}
if (!cbcRamp.SWinside && rampCollider.rampDirection != Direction.NE)
{
restriction.restrictSW = true;
}
if (!cbcRamp.NEinside && rampCollider.rampDirection != Direction.SW)
{
restriction.restrictNE = true;
}
if (!cbcRamp.NWinside && rampCollider.rampDirection != Direction.SE)
{
restriction.restrictNW = true;
}
restriction.slopeDirection = rampCollider.rampDirection;
restriction.slope = rampCollider.slope;
// Check for room entry
PixelStair pixelStair = otherPixelCollider.transform.parent.GetComponent <PixelStair>();
if (pixelStair != null)
{
bool above = rampCollider.OnFarSide(cramped);
if (above)
{
restriction.enteredDoor = pixelStair;
}
}
}
}
else
{
otherPixelCollider.collisionBodyWorld.Draw(Color.white, 1.0f);
if (collisionBodyWorld.WithinRange(otherPixelCollider.collisionBodyWorld, Direction.NW, 0.4f))
{
restriction.restrictNW = true;
}
if (collisionBodyWorld.WithinRange(otherPixelCollider.collisionBodyWorld, Direction.NE, 0.4f))
{
restriction.restrictNE = true;
}
if (collisionBodyWorld.WithinRange(otherPixelCollider.collisionBodyWorld, Direction.SW, 0.4f))
{
restriction.restrictSW = true;
}
if (collisionBodyWorld.WithinRange(otherPixelCollider.collisionBodyWorld, Direction.SE, 0.4f))
{
restriction.restrictSE = true;
}
}
}
return(restriction);
}
