void HorizontalCollisions(ref Vector2 movementDistance)
{
float directionX = collInfo.movementDirection;
float rayLength = Mathf.Abs(movementDistance.x) + skinWidth;
if (Mathf.Abs(movementDistance.x) < skinWidth)
{
rayLength = 2 * skinWidth;
}
bool terrainDetected, hazardDetected;
terrainDetected = hazardDetected = false;
ClosestRayHit closestHazardHit = new ClosestRayHit();
ClosestRayHit closestTerrainHit = new ClosestRayHit();
// Cast out rays and determine the closest piece of terrain and / or a hazard
for (int i = 0; i < horizontalRayCount; ++i)
{
Vector2 rayOrigin = (directionX == -1) ? raycastOrigins.bottomLeft : raycastOrigins.bottomRight;
rayOrigin += Vector2.up * (horizontalRaySpacing * i);
RaycastHit2D terrainHit = Physics2D.Raycast(rayOrigin, Vector2.right * directionX, rayLength, collisionMask);
RaycastHit2D hazardHit = Physics2D.Raycast(rayOrigin, Vector2.right * directionX, rayLength, hazardCollisionMask);
Debug.DrawRay(rayOrigin, Vector2.right * directionX * rayLength, Color.red);
if (terrainHit)
{
if (terrainDetected)
{
if ((int)(terrainHit.distance * 1000) < (int)(closestTerrainHit.distance * 1000))
{
closestTerrainHit.colliderTag = terrainHit.collider.tag;
closestTerrainHit.distance = terrainHit.distance;
}
}
else
{
terrainDetected = true;
closestTerrainHit.colliderTag = terrainHit.collider.tag;
closestTerrainHit.distance = terrainHit.distance;
}
}
if (hazardHit)
{
if (hazardDetected)
{
if ((int)(hazardHit.distance * 1000) < (int)(closestHazardHit.distance * 1000))
{
closestTerrainHit.colliderTag = hazardHit.collider.tag;
closestTerrainHit.distance = hazardHit.distance;
}
}
else
{
hazardDetected = true;
closestHazardHit.colliderTag = hazardHit.collider.tag;
closestHazardHit.distance = hazardHit.distance;
}
}
}
if (hazardDetected)
{
if (closestHazardHit.distance == 0)
{
collInfo.touchedHazard = true;
movementDistance = Vector2.zero;
return;
}
}
if (terrainDetected)
{
collInfo.left = directionX == -1;
collInfo.right = directionX == 1;
if (closestTerrainHit.colliderTag == "JumpPlatform")
{
if (closestTerrainHit.distance == 0)
{
collInfo.hitJumpPlatform = true;
}
return;
}
// If the character is inside another collider
if (closestTerrainHit.distance == 0)
{
return;
}
movementDistance.x = Mathf.Min(Mathf.Abs(movementDistance.x), (closestTerrainHit.distance - skinWidth)) * directionX;
}
}
void VerticalCollisions(ref Vector2 movementDistance)
{
float directionY = (movementDistance.y > 0) ? 1.0f : -1.0f;
float rayLength = Mathf.Abs(movementDistance.y) + skinWidth;
if (Mathf.Abs(movementDistance.y) < skinWidth)
{
rayLength = 2 * skinWidth;
}
bool terrainDetected = false;
bool hazardDetected = false;
ClosestRayHit closestHazardHit = new ClosestRayHit();
ClosestRayHit closestTerrainHit = new ClosestRayHit();
// Cast out rays and determine the closest piece of terrain and / or a hazard
for (int i = 0; i < verticalRayCount; ++i)
{
Vector2 rayOrigin = (directionY == -1) ? raycastOrigins.bottomLeft : raycastOrigins.topLeft;
rayOrigin += Vector2.right * (verticalRaySpacing * i + movementDistance.x);
RaycastHit2D terrainHit = Physics2D.Raycast(rayOrigin, Vector2.up * directionY, rayLength, collisionMask);
RaycastHit2D hazardHit = Physics2D.Raycast(rayOrigin, Vector2.up * directionY, rayLength, hazardCollisionMask);
Debug.DrawRay(rayOrigin, Vector2.up * directionY * rayLength, Color.red);
if (terrainHit)
{
if (terrainDetected)
{
if ((int)(terrainHit.distance * 1000) < (int)(closestTerrainHit.distance * 1000))
{
closestTerrainHit.colliderTag = terrainHit.collider.tag;
closestTerrainHit.distance = terrainHit.distance;
}
}
else
{
terrainDetected = true;
closestTerrainHit.colliderTag = terrainHit.collider.tag;
closestTerrainHit.distance = terrainHit.distance;
}
}
if (hazardHit)
{
if (hazardDetected)
{
if ((int)(hazardHit.distance * 1000) < (int)(closestHazardHit.distance * 1000))
{
closestTerrainHit.colliderTag = hazardHit.collider.tag;
closestTerrainHit.distance = hazardHit.distance;
}
}
else
{
hazardDetected = true;
closestHazardHit.colliderTag = hazardHit.collider.tag;
closestHazardHit.distance = hazardHit.distance;
}
}
}
if (hazardDetected)
{
if (closestHazardHit.distance == 0)
{
collInfo.touchedHazard = true;
movementDistance = Vector2.zero;
return;
}
}
if (terrainDetected)
{
// Check for passable platforms
if (closestTerrainHit.colliderTag == "Passable Platform" && allowPassablePlatforms)
{
if (directionY == 1 || closestTerrainHit.distance == 0 || collInfo.fallingThroughPlatform)
{
return;
}
if (playerInput.y == -1 && playerInput.x == 0)
{
collInfo.fallingThroughPlatform = true;
Invoke("ResetFallingThroughPlatform", 0.5f);
return;
}
}
collInfo.above = directionY == 1;
collInfo.below = directionY == -1;
collInfo.belowLastFrame = collInfo.below ? true : false;
if (closestTerrainHit.colliderTag == "JumpPlatform")
{
collInfo.hitJumpPlatform = true;
return;
}
movementDistance.y = (closestTerrainHit.distance - skinWidth) * directionY;
}
else if (collInfo.belowLastFrame && !collInfo.below)
{
collInfo.belowLastFrame = false;
collInfo.timeLeftGround = Time.time;
}
//else {
// LedgeDetection(ref movementDistance);
//}
}