public void LineCircleIntersection()
{
BoundaryCircle circleOnOrigin = new BoundaryCircle(1.0f, new Vector2D(0.0f,0.0f));
Line intersectingLine = new Line(new Vector2D(-1.0f, -1.0f), new Vector2D(1.0f, 1.0f));
Line nonIntersectingLine = new Line(new Vector2D(-1.0f, 1.0f), new Vector2D(1.0f, 2.0f));
Line boundedNonIntersectingLine = new Line(new Vector2D(1.1f, 1.1f), new Vector2D(2.6f, 2.6f));
Line internalLine = new Line(new Vector2D(0.5f, 0.5f), new Vector2D(0.4f, 0.4f));
Assert.IsTrue(circleOnOrigin.TestIntersection(intersectingLine));
Assert.IsFalse(circleOnOrigin.TestIntersection(nonIntersectingLine));
Assert.IsFalse(circleOnOrigin.TestIntersection(boundedNonIntersectingLine));
Assert.IsTrue(circleOnOrigin.TestIntersection(internalLine));
}
public static bool TestIntersection(this Bounds bounds, BoundaryCircle circle)
{
if (bounds is BoundaryCircle)
{
return circle.TestIntersection(bounds as BoundaryCircle);
}
else if (bounds is BoundaryRect)
{
return circle.TestIntersection(bounds as BoundaryRect);
}
else
{
throw new InvalidOperationException("Attempting to test boundary on unknown types");
}
}
void Start()
{
boundary = GameObject.FindGameObjectWithTag("Boundary").GetComponent <BoundaryCircle>();
cursor = GameObject.FindGameObjectWithTag("Cursor");
reflectionArea = GameObject.FindGameObjectWithTag("ReflectionArea");
cameraShake = Camera.main.GetComponent <CameraShake>();
teleportGauge = GameObject.FindGameObjectWithTag("TeleportGauge").GetComponent <Slider>();
timeControlGauge = GameObject.FindGameObjectWithTag("TimeControlGauge").GetComponent <Slider>();
lifeText = GameObject.FindGameObjectWithTag("LifeText").GetComponent <Text>();
destructible = GetComponent <Destructible>();
GetComponent <MeshRenderer>().material.color = playerColor;
teleportTimer = teleportDelay;
timeControlTimer = timeControlDuration;
}
public static bool DoesCircleIntersectRect(BoundaryRect rect, BoundaryCircle circle)
{
// 2 cases:
// case 1: the center of the circle is within the rect
// case 2: the rectange has an edge that intersects the circle
if (rect.ContainsPoint(circle.Center))
{
return true;
}
else
{
return rect.Top.TestIntersection(circle) ||
rect.Bottom.TestIntersection(circle) ||
rect.Left.TestIntersection(circle) ||
rect.Right.TestIntersection(circle);
}
}
void Start()
{
boundaryCircle = GameObject.FindGameObjectWithTag("Boundary").GetComponent <BoundaryCircle>();
boundaryCircle.targetRadius = boundaryRadius[level];
}
public static bool TestIntersection(this Line line, BoundaryCircle circle)
{
return DoesLineIntersectCircle(circle, line);
}
public static bool TestIntersection(this BoundaryRect rect, BoundaryCircle circle)
{
return DoesCircleIntersectRect(rect, circle);
}
public static bool DoesLineIntersectCircle(BoundaryCircle circle, Line line)
{
return MathHelper.DistanceBetweenPointAndLineSegment(circle.Center, line) < circle.Radius;
}