// Use this for initialization
void Start()
{
m_collider = GetComponent <BoxCollider2D> ();
m_size.x = m_collider.bounds.size.x;
m_size.y = m_collider.bounds.size.y;
m_offset = m_collider.bounds.center - transform.position;
m_oneWay = false;
CollisionCreator collisionCreator = GetComponent <CollisionCreator> ();
if (collisionCreator != null)
{
m_oneWay = collisionCreator.isOneway;
}
// Remove children
foreach (Transform location in m_locations)
{
if (location.parent == transform)
{
location.SetParent(null);
}
}
}
void FixedUpdate()
{
DrawDebug();
float frameTime = Time.deltaTime;
if (frameTime <= 0)
{
return;
}
m_position = transform.position;
Vector2 collisionPos = m_position + m_offset;
Vector2 localVelocity;
m_onGround = false;
if (m_gravityScale > 0)
{
m_velocity.y -= s_gravity * m_gravityMultiplier * m_gravityScale * frameTime;
localVelocity = new Vector2(0, m_velocity.y * frameTime);
// Trace floor
if (localVelocity.y < 0)
{
RaycastHit2D hit2D = Physics2D.BoxCast(collisionPos, m_size, 0, localVelocity, -localVelocity.y);
if (hit2D)
{
m_position += localVelocity * hit2D.fraction + (hit2D.normal * 0.01f);
m_velocity.y = 0;
m_onGround = true;
collisionPos.y = m_position.y + m_offset.y;
if (hit2D.transform.GetComponent <MovingPlatform>() != null)
{
transform.SetParent(hit2D.transform);
}
else
{
transform.SetParent(null);
}
}
}
if (!m_onGround)
{
transform.SetParent(null);
}
}
// Trace walking
m_hitWall = false;
m_hitCeiling = false;
localVelocity = m_velocity * frameTime;
for (uint resolveCount = 0; resolveCount < 3; resolveCount++)
{
float magnitude = localVelocity.magnitude;
if (magnitude > 0.0f)
{
RaycastHit2D hit2D = Physics2D.BoxCast(collisionPos, m_size, 0, localVelocity, magnitude);
bool collide = false;
if (hit2D)
{
CollisionCreator collision = hit2D.transform.GetComponent <CollisionCreator>();
if (collision && collision.isOneway)
{
collide = false;
}
else
{
collide = !Physics2D.GetIgnoreCollision(hit2D.collider, m_collider);
}
}
if (collide)
{
if (Mathf.Abs(hit2D.normal.x) > m_WallNormal)
{
m_hitWall = true;
}
else
{
// Debug.Log (hit2D.transform.name + ":" + hit2D.transform.position);
m_hitCeiling = true;
}
m_wallDirection = Mathf.Sign(hit2D.normal.x);
/*
* if(m_hitWall) {
* localVelocity.x = 0;
* }
* m_position += (localVelocity * hit2D.fraction);// + (hit2D.normal * 0.01f);
*
* collisionPos = m_position + m_offset;
* localVelocity = -(1.0f * Vector2.Dot(hit2D.normal, localVelocity) * hit2D.normal) + localVelocity;
* // localVelocity *= 1.0f - hit2D.fraction;
*/
collisionPos = m_position + (localVelocity * hit2D.fraction);
// Hack - would be nice to remove this
if (m_hitWall)
{
m_position.x += (localVelocity.x * hit2D.fraction) + (hit2D.normal.x * 0.01f);
collisionPos.y = m_position.y;
}
else
{
collisionPos.x = m_position.x;
}
collisionPos += m_offset;
localVelocity = -(1.0f * Vector2.Dot(hit2D.normal, localVelocity) * hit2D.normal) + localVelocity;
}
else
{
m_position += localVelocity;
break;
}
}
}
m_velocity = localVelocity / frameTime; // Change this to distance travelled then we can modify the velocity internally
transform.position = m_position;
if (m_showDebug)
{
Debug.Log(Time.frameCount +
" :" + transform.name +
" :" + " OnGround:" + m_onGround +
" HitWall:" + m_hitWall +
" Ground=" + ((transform.parent == null) ? "null" : transform.parent.name));
}
}