void HorizontalCollisions(ref Vector3 velocity)
{
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)
{
if (hit.distance == 0)
{
continue;
}
OneWayFlag oneWay = hit.collider.GetComponent <OneWayFlag>();
if (oneWay != null)
{
if (collisions.filtered.Contains(hit.collider))
{
collisions.justFiltered.Add(hit.collider);
continue;
}
if (directionX == 1 ? oneWay.filterLeft : oneWay.filterRight)
{
collisions.justFiltered.Add(hit.collider);
continue;
}
}
float slopeAngle = Vector2.Angle(hit.normal, Vector2.up);
if (i == 0 && slopeAngle <= maxClimbAngle)
{
if (collisions.descendingSlope)
{
collisions.descendingSlope = false;
velocity = collisions.velocityOld;
}
float distanceToSlopeStart = 0;
if (slopeAngle != collisions.slopeAngleOld)
{
distanceToSlopeStart = hit.distance - skinWidth;
velocity.x -= distanceToSlopeStart * directionX;
}
ClimbSlope(ref velocity, slopeAngle);
velocity.x += distanceToSlopeStart * directionX;
}
if (!collisions.climbingSlope || slopeAngle > maxClimbAngle)
{
velocity.x = (hit.distance - skinWidth) * directionX;
rayLength = hit.distance;
if (collisions.climbingSlope)
{
velocity.y = Mathf.Tan(collisions.slopeAngle * Mathf.Deg2Rad) * Mathf.Abs(velocity.x);
}
collisions.left = directionX == -1;
collisions.right = directionX == 1;
}
}
}
}
void VerticalCollisions(ref Vector3 velocity)
{
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;
rayOrigin += Vector2.right * (verticalRaySpacing * i + velocity.x);
RaycastHit2D hit = Physics2D.Raycast(rayOrigin, Vector2.up * directionY, rayLength, collisionMask);
Debug.DrawRay(rayOrigin, Vector2.up * directionY * rayLength, Color.red);
if (hit)
{
OneWayFlag oneWay = hit.collider.GetComponent <OneWayFlag>();
if (oneWay != null)
{
if (collisions.filtered.Contains(hit.collider))
{
collisions.justFiltered.Add(hit.collider);
continue;
}
if (directionY == -1 && collisions.dropPlatform)
{
collisions.justFiltered.Add(hit.collider);
continue;
}
if (directionY == 1 ? oneWay.filterBottom : oneWay.filterTop)
{
collisions.justFiltered.Add(hit.collider);
continue;
}
}
velocity.y = (hit.distance - skinWidth) * directionY;
rayLength = hit.distance;
if (collisions.climbingSlope)
{
velocity.x = velocity.y / Mathf.Tan(collisions.slopeAngle * Mathf.Deg2Rad) * Mathf.Sign(velocity.x);
}
collisions.below = directionY == -1;
collisions.above = directionY == 1;
}
}
if (collisions.climbingSlope)
{
float directionX = Mathf.Sign(velocity.x);
rayLength = Mathf.Abs(velocity.x) + skinWidth;
Vector2 rayOrigin = ((directionX == -1)?raycastOrigins.bottomLeft:raycastOrigins.bottomRight) + Vector2.up * velocity.y;
RaycastHit2D hit = Physics2D.Raycast(rayOrigin, Vector2.right * directionX, rayLength, collisionMask);
if (hit)
{
float slopeAngle = Vector2.Angle(hit.normal, Vector2.up);
if (slopeAngle != collisions.slopeAngle)
{
velocity.x = (hit.distance - skinWidth) * directionX;
collisions.slopeAngle = slopeAngle;
}
}
}
}
