/// <summary>
/// Stop pill from falling when it collides with an AABB
/// </summary>
/// <param name="other"></param>
public void LifePillCollision(PetzakAABB other)
{
if (lifePill.CollidesWith(other))
{
pill.isFalling = false;
Vector3 fix = lifePill.FindFix(other);
lifePill.BroadcastMessage("ApplyFix", fix);
}
}
/// <summary>
/// This function returns how far to move this AABB so that it no longer overlaps
/// another AABB. This function assumes that the two are overlapping.
/// This function only solves for the X or Y axies. Z is ignored.
/// </summary>
/// <param name="other"></param>
/// <returns>How far to move this box (in meters).</returns>
public Vector3 FindFix(PetzakAABB other)
{
float moveRight = other.max.x - this.min.x;
float moveLeft = other.min.x - this.max.x;
float moveUp = other.max.y - this.min.y;
float moveDown = other.min.y - this.max.y;
Vector3 fix = new Vector3();
fix.x = (Mathf.Abs(moveLeft) < Mathf.Abs(moveRight)) ? moveLeft : moveRight;
fix.y = (Mathf.Abs(moveUp) < Mathf.Abs(moveDown)) ? moveUp : moveDown;
if (Mathf.Abs(fix.x) < Mathf.Abs(fix.y))
{
fix.y = 0;
}
else
{
fix.x = 0;
}
return(fix);
}
/// <summary>
/// Determines if there are any gaps between one AABB and another.
/// Only accounts for x and y axis.
/// </summary>
/// <param name="other"></param>
/// <returns></returns>
public bool CollidesWith(PetzakAABB other)
{
// LightPlatform collision against player
if (other.name.StartsWith("Light") && !this.name.StartsWith("Life"))
{
Recalc(); // make sure both objects have the correct min/max
other.Recalc();
PetzakPlayerMovement p = this.GetComponentInParent <PetzakPlayerMovement>();
bool closeEnough = Math.Abs(other.max.y - this.min.y) < .2; // objects are very close to one another
bool withinHorizontalRange = other.min.x <= this.max.x && other.max.x >= this.min.x;
bool isNotMovingUp = p.velocity.y <= 0;
return(closeEnough && withinHorizontalRange && isNotMovingUp && !p.isJumping && !p.isGrounded);
}
if (other.max.x < this.min.x || // check for gap to left
other.min.x > this.max.x || // check for gap to right
other.min.y > this.max.y || // check for gap above
other.max.y < this.min.y) // check for gap below
{
return(false);
}
return(true); // no gaps found
}
