public void Move(Vector3 velocity, OnHitCallBack onHitCall)
{
UpdateRaycastOrigins();
CalculateRaySpacing();
collisions.Reset();
if (velocity.x != 0)
{
HorizontalCollision(ref velocity, onHitCall);
}
if (velocity.y != 0)
{
VerticalCollision(ref velocity, onHitCall);
}
transform.Translate(velocity);
}
private void HorizontalCollision(ref Vector3 velocity, OnHitCallBack onHitCall)
{
float directionX = Mathf.Sign(velocity.x);
float rayLength = Mathf.Abs(velocity.x) + skinWidth;
for (int i = 0; i < horizontalRayCount; i++)
{
Vector2 rayOrigin = (directionX == -1) ? raycastOrigins.bottomLeft : raycastOrigins.bottomRight;
rayOrigin += Vector2.up * horizontalRaySpacing * i;
RaycastHit2D hit = Physics2D.Raycast(rayOrigin, Vector2.right * directionX, rayLength, collisionMask);
Debug.DrawRay(rayOrigin, Vector2.right * directionX * rayLength, Color.red);
if (hit)
{
velocity.x = (hit.distance - skinWidth) * directionX;
rayLength = hit.distance;
collisions.left = (directionX == -1);
collisions.right = (directionX == 1);
onHitCall(hit);
}
}
}
private void VerticalCollision(ref Vector3 velocity, OnHitCallBack onHitCall)
{
float directionY = Mathf.Sign(velocity.y);
float rayLength = Mathf.Abs(velocity.y) + skinWidth;
for (int i = 0; i < verticalRayCount; i++)
{
Vector2 rayOrigin = (directionY == -1) ? raycastOrigins.bottomLeft : raycastOrigins.topLeft;
Debug.DrawRay(rayOrigin, Vector2.up * directionY * rayLength, Color.red);
rayOrigin += Vector2.right * (verticalRaySpacing * i + velocity.x);
RaycastHit2D hit = Physics2D.Raycast(rayOrigin, Vector2.up * directionY, rayLength, collisionMask);
if (hit)
{
velocity.y = (hit.distance - skinWidth) * directionY;
rayLength = hit.distance;
collisions.below = (directionY == -1);
collisions.above = (directionY == 1);
onHitCall(hit);
}
}
}