public void FindCurrentSurface()
{
Collider2D groundCollider = this._CharacterController2D.GroundColliders[0];
if (groundCollider == null)
{
groundCollider = this._CharacterController2D.GroundColliders[1];
}
if (groundCollider == null)
{
return;
}
TileBase b = PhysicsHelper.FindTileForOverride(groundCollider, transform.position, Vector2.down);
if (b != null)
{
this._CurrentSurface = b;
}
}
/// <summary>
/// This updates the state of IsGrounded. It is called automatically in FixedUpdate but can be called more frequently if higher accurracy is required.
/// </summary>
public void CheckCapsuleEndCollisions(bool bottom = true)
{
Vector2 raycastDirection;
Vector2 raycastStart;
float raycastDistance;
if (m_Capsule == null)
{
raycastStart = m_Rigidbody2D.position + Vector2.up;
raycastDistance = 1f + groundedRaycastDistance;
if (bottom)
{
raycastDirection = Vector2.down;
m_RaycastPositions[0] = raycastStart + Vector2.left * 0.4f;
m_RaycastPositions[1] = raycastStart;
m_RaycastPositions[2] = raycastStart + Vector2.right * 0.4f;
}
else
{
raycastDirection = Vector2.up;
m_RaycastPositions[0] = raycastStart + Vector2.left * 0.4f;
m_RaycastPositions[1] = raycastStart;
m_RaycastPositions[2] = raycastStart + Vector2.right * 0.4f;
}
}
else
{
raycastStart = m_Rigidbody2D.position + m_Capsule.offset;
raycastDistance = m_Capsule.size.x * 0.5f + groundedRaycastDistance * 2f;
if (bottom)
{
raycastDirection = Vector2.down;
Vector2 raycastStartBottomCentre = raycastStart + Vector2.down * (m_Capsule.size.y * 0.5f - m_Capsule.size.x * 0.5f);
m_RaycastPositions[0] = raycastStartBottomCentre + Vector2.left * m_Capsule.size.x * 0.5f;
m_RaycastPositions[1] = raycastStartBottomCentre;
m_RaycastPositions[2] = raycastStartBottomCentre + Vector2.right * m_Capsule.size.x * 0.5f;
}
else
{
raycastDirection = Vector2.up;
Vector2 raycastStartTopCentre = raycastStart + Vector2.up * (m_Capsule.size.y * 0.5f - m_Capsule.size.x * 0.5f);
m_RaycastPositions[0] = raycastStartTopCentre + Vector2.left * m_Capsule.size.x * 0.5f;
m_RaycastPositions[1] = raycastStartTopCentre;
m_RaycastPositions[2] = raycastStartTopCentre + Vector2.right * m_Capsule.size.x * 0.5f;
}
}
for (int i = 0; i < m_RaycastPositions.Length; i++)
{
int count = Physics2D.Raycast(m_RaycastPositions[i], raycastDirection, m_ContactFilter, m_HitBuffer, raycastDistance);
if (bottom)
{
m_FoundHits[i] = count > 0 ? m_HitBuffer[0] : new RaycastHit2D();
m_GroundColliders[i] = m_FoundHits[i].collider;
}
else
{
IsCeilinged = false;
for (int j = 0; j < m_HitBuffer.Length; j++)
{
if (m_HitBuffer[j].collider != null)
{
if (!PhysicsHelper.ColliderHasPlatformEffector(m_HitBuffer[j].collider))
{
IsCeilinged = true;
}
}
}
}
}
if (bottom)
{
Vector2 groundNormal = Vector2.zero;
int hitCount = 0;
for (int i = 0; i < m_FoundHits.Length; i++)
{
if (m_FoundHits[i].collider != null)
{
groundNormal += m_FoundHits[i].normal;
hitCount++;
}
}
if (hitCount > 0)
{
groundNormal.Normalize();
}
Vector2 relativeVelocity = Velocity;
for (int i = 0; i < m_GroundColliders.Length; i++)
{
if (m_GroundColliders[i] == null)
{
continue;
}
MovingPlatform movingPlatform;
if (PhysicsHelper.TryGetMovingPlatform(m_GroundColliders[i], out movingPlatform))
{
relativeVelocity -= movingPlatform.Velocity / Time.deltaTime;
break;
}
}
if (Mathf.Approximately(groundNormal.x, 0f) && Mathf.Approximately(groundNormal.y, 0f))
{
IsGrounded = false;
}
else
{
IsGrounded = relativeVelocity.y <= 0f;
if (m_Capsule != null)
{
if (m_GroundColliders[1] != null)
{
float capsuleBottomHeight = m_Rigidbody2D.position.y + m_Capsule.offset.y - m_Capsule.size.y * 0.5f;
float middleHitHeight = m_FoundHits[1].point.y;
IsGrounded &= middleHitHeight < capsuleBottomHeight + groundedRaycastDistance;
}
}
}
}
for (int i = 0; i < m_HitBuffer.Length; i++)
{
m_HitBuffer[i] = new RaycastHit2D();
}
}
static void Create()
{
GameObject physicsHelperGameObject = new GameObject("PhysicsHelper");
s_Instance = physicsHelperGameObject.AddComponent <PhysicsHelper> ();
}
