/// <summary>
/// Cast a box or circle and find out if there is any object of the given layer mask in an area.
/// </summary>
/// <param name="raycastOrigins">Raycast origins (from a character driver).</param>
/// <param name="isFacingRight">Cast to the left of to the right of a point (character).</param>
/// <param name="offset">Cast offset from the origin.</param>
/// <param name="targetLayer">Target layer mask.</param>
/// <param name="range">Cast range (if a box).</param>
/// <param name="radius">Cast radius (if a circle).</param>
/// <returns>The first object hit by the cast.</returns>
public static RaycastHit2D CheckObjectInArea(RaycastOrigins raycastOrigins, bool isFacingRight, Vector2 offset, LayerMask targetLayer, Vector2 range, float radius = 0)
{
Vector2 center = ((isFacingRight) ? raycastOrigins.rightCenter : raycastOrigins.leftCenter);
// Add the offset.
center.x += offset.x * ((isFacingRight) ? 1 : -1);
center.y += offset.y;
Vector2 dir = ((isFacingRight) ? Vector2.right : Vector2.left);
RaycastHit2D hit;
if (radius == 0)
{
// Align the cast to one of the sides.
center.x += (range.x / 2) * ((isFacingRight) ? 1 : -1);
hit = Physics2D.BoxCast(center, range, 0, dir, 0, targetLayer);
}
else
{
// Align the cast to one of the sides.
center.x += (radius / 2) * ((isFacingRight) ? 1 : -1);
hit = Physics2D.CircleCast(center, radius, dir, 0, targetLayer);
}
return(hit);
}
bool IsTargetInRangeTest()
{
RaycastOrigins raycastOrigins = charDriver.GetRaycastOrigins();
bool isFacingRight = charDriver.IsFacingRight();
RaycastHit2D hit = CheckObjectInArea(raycastOrigins, isFacingRight, offset, targetLayer, range, radius);
// May be necessary to check if the target is alive!
return(hit.transform != null);
}
public static void DisplayAttackAreaCircle(ICharacterDriver driver, float radius, Vector2 offset)
{
RaycastOrigins raycastOrigins = driver.GetRaycastOrigins();
bool isFacingRight = driver.IsFacingRight();
Vector2 center = ((isFacingRight) ? raycastOrigins.rightCenter : raycastOrigins.leftCenter);
// Add offset.
center.x += offset.x * ((isFacingRight) ? 1 : -1);
center.y += offset.y;
// Centralize.
center.x += (radius / 2) * ((isFacingRight) ? 1 : -1);
Gizmos.DrawWireSphere(center, radius);
}
/// <summary>
/// Display the attack area.
/// </summary>
/// <param name="driver">Character's driver.</param>
/// <param name="range">Attack range.</param>
public static void DisplayAttackArea(ICharacterDriver driver, Vector2 range, Vector2 offset)
{
RaycastOrigins raycastOrigins = driver.GetRaycastOrigins();
bool isFacingRight = driver.IsFacingRight();
Vector2 center = ((isFacingRight) ? raycastOrigins.rightCenter : raycastOrigins.leftCenter);
// Add offset.
center.x += offset.x * ((isFacingRight) ? 1 : -1);
center.y += offset.y;
// Centralize the central point.
center.x += (range.x / 2) * ((isFacingRight) ? 1 : -1);
Gizmos.DrawWireCube(center, new Vector3(range.x, range.y, 0));
}
