public RadarBlip[] GetAllBlips()
{
RadarBlip[] retVal = new RadarBlip[_blips.Values.Count];
for (int blipCntr = 0; blipCntr < retVal.Length; blipCntr++)
{
retVal[blipCntr] = _blips.Values[blipCntr];
}
return(retVal);
}
/// <summary>
/// This function will remove the blip from my knowledge. I give you the pointer to it in case you want to keep it.
/// </summary>
/// <remarks>
/// For example, if you pick up a rock, call this function, and you will be the parent of that rock. But, if you throw the
/// rock, you will need to give the rock back to me. The reason I went with that approach, is because I don't want to be
/// in charge of all the items that you are carrying. It gets more complex if you put an item in your pocket. Now that
/// item is concealed.
///
/// There are two modes of an item being hidden. There is completely hidden, which means the Audio/Visual class will
/// be turned off, and there is hidden from my collision detection. For my collision detection to work, whenever you
/// pick up an item that needs to be included in collision checks, you will need to modify your radius so that the radius
/// encompasses all objects that you are holding.
/// </remarks>
public RadarBlip Remove(long token)
{
RadarBlip retVal = _blips[token];
// See if I should wait
if (_isTimerRunning)
{
_removeRequests.Add(token);
return(retVal);
}
// Remove it
_blips.Remove(token);
_nonCollidableBlips.Remove(retVal); // it is only in one of the lists, but the style may change in the middle of a tick
_collidableBlips.Remove(retVal);
// Exit Function
return(retVal);
}
public void Add(RadarBlip blip)
{
// See if I should wait
if (_isTimerRunning)
{
_addRequests.Add(blip);
return;
}
// Add it
_blips.Add(blip.Token, blip);
if (blip.CollisionStyle == CollisionStyle.Ghost)
{
_nonCollidableBlips.Add(blip);
}
else
{
_collidableBlips.Add(blip);
}
}
/// <summary>
/// This function pulls the two blips straight apart from each other (no physics involved, just displacement)
/// </summary>
public virtual void PullItemsApartInstant(RadarBlip blip1, RadarBlip blip2)
{
if (blip1 is BallBlip && blip2 is BallBlip)
{
// They're both at least balls, use mass and radius in the calculation
PullItemsApartInstant_BallBall((BallBlip)blip1, (BallBlip)blip2);
}
else
{
// At least one is a sphere. Use radius in the calculation
PullItemsApartInstant_SphereSphere(blip1, blip2);
}
}
private bool SelectionTest(RadarBlip blip, MyVector rectCorner1, MyVector rectCorner2)
{
// Just worry about spheres for now
// I'll just cheat and let the rectangle do the work for me. There are several flaws with this, but it
// works for now
MyVector topLeft, bottomRight;
GetProperCorners(out topLeft, out bottomRight, rectCorner1, rectCorner2);
RectangleF rect = new RectangleF(topLeft.ToPointF(), new SizeF(Convert.ToSingle(bottomRight.X - topLeft.X), Convert.ToSingle(bottomRight.Y - topLeft.Y)));
return rect.Contains(blip.Sphere.Position.ToPointF());
}
public Collision(RadarBlip blip1, RadarBlip blip2)
{
this.Blip1 = blip1;
this.Blip2 = blip2;
}
protected void PullItemsApartSpring_BallSphere(BallBlip ball, RadarBlip blip)
{
}
private bool SelectionTest(RadarBlip blip, MyVector point)
{
// Just worry about spheres for now
MyVector line = point - blip.Sphere.Position;
return line.GetMagnitude() <= blip.Sphere.Radius;
}
protected CollisionDepth IsColliding_SphereSphere(RadarBlip sphere1, RadarBlip sphere2)
{
MyVector lineBetween = sphere2.Sphere.Position - sphere1.Sphere.Position;
double distanceSquared = lineBetween.GetMagnitudeSquared();
double sumRadii = sphere1.Sphere.Radius + sphere2.Sphere.Radius;
// See if they missed each other
if (distanceSquared > sumRadii * sumRadii)
{
return CollisionDepth.NotColliding;
}
double distance = Math.Sqrt(distanceSquared);
double percentPenetrating = (sumRadii - distance) / sumRadii;
if (percentPenetrating <= _penetrationThresholdPercent)
{
return CollisionDepth.Touching;
}
else
{
return CollisionDepth.Penetrating;
}
}
/// <summary>
/// This function pulls the items directly apart based on the ratio of their radii
/// </summary>
protected void PullItemsApartInstant_SphereSphere(RadarBlip sphere1, RadarBlip sphere2)
{
// Get the vector from 2 to 1
MyVector move1From2 = sphere1.Sphere.Position - sphere2.Sphere.Position;
double totalDistance = move1From2.GetMagnitude() * _pullApartInstantPercent; // distance from centers (exagerated by the percent passed in)
double actualDistance = (sphere1.Sphere.Radius + sphere2.Sphere.Radius) - totalDistance; // distance from edges
// Make this a unit vector
move1From2.Divide(totalDistance);
double ratio1 = sphere1.Sphere.Radius / (sphere1.Sphere.Radius + sphere2.Sphere.Radius);
// Set their positions
if (sphere1.CollisionStyle == CollisionStyle.Standard)
{
sphere1.Sphere.Position.Add(move1From2 * (actualDistance * ratio1));
}
if (sphere2.CollisionStyle == CollisionStyle.Standard)
{
sphere2.Sphere.Position.Add(move1From2 * (actualDistance * (1d - ratio1) * -1d));
}
}
private bool WillCollide(Ball ball)
{
// Make a temp blip to be a wrapper for this
RadarBlip blip = new RadarBlip(ball, CollisionStyle.Standard, RadarBlipQual.BallUserDefined10, TokenGenerator.NextToken());
foreach (RadarBlip existingBlip in _map.GetAllBlips())
{
if (_map.CollisionHandler.IsColliding(blip, existingBlip) != CollisionDepth.NotColliding)
{
// It's colliding
return true;
}
}
return false;
}
public virtual bool Collide(RadarBlip blip1, RadarBlip blip2)
{
if (blip1.CollisionStyle == CollisionStyle.Ghost || blip2.CollisionStyle == CollisionStyle.Ghost)
{
// I won't even bother trying to collide ghosts
return false;
}
if (!(blip1 is BallBlip))
{
return false;
}
if (!(blip2 is BallBlip))
{
return false;
}
// If I am here, they are both balls.
BallBlip ballBlip1 = blip1 as BallBlip;
BallBlip ballBlip2 = blip2 as BallBlip;
if (ballBlip1.TorqueBall != null && ballBlip2.TorqueBall != null)
{
#region Treat them like solid balls
if (ballBlip1.CollisionStyle == CollisionStyle.Standard)
{
if (ballBlip2.CollisionStyle == CollisionStyle.Standard)
{
// Two standard balls
Collide_TorqueBallTorqueBall(ballBlip1, ballBlip2);
}
else
{
// One is standard, two is stationary
Collide_TorqueBallTorqueBall_2IsStationary(ballBlip1, ballBlip2);
}
}
else if (ballBlip2.CollisionStyle == CollisionStyle.Standard)
{
// One is stationary, two is standard
Collide_TorqueBallTorqueBall_2IsStationary(ballBlip2, ballBlip1);
}
// No need for an else. There is nothing to do (both are stationary)
#endregion
}
else if (ballBlip1.TorqueBall == null && ballBlip2.TorqueBall == null)
{
#region Treat them like regular balls
//TODO: Handle a ball colliding with a torqueball
if (ballBlip1.CollisionStyle == CollisionStyle.Standard)
{
if (ballBlip2.CollisionStyle == CollisionStyle.Standard)
{
// Two standard balls
Collide_BallBall(ballBlip1, ballBlip2);
}
else
{
// One is standard, two is stationary
Collide_BallBall_2IsStationary(ballBlip1, ballBlip2);
}
}
else if (ballBlip2.CollisionStyle == CollisionStyle.Standard)
{
// One is stationary, two is standard
Collide_BallBall_2IsStationary(ballBlip2, ballBlip1);
}
// No need for an else. There is nothing to do (both are stationary)
#endregion
}
else if (ballBlip1.TorqueBall != null)
{
// 1 is torqueball, 2 is regular ball
CollideSprtBallTorqueBall(ballBlip2, ballBlip1);
}
else //if (ballBlip2.TorqueBall != null)
{
// 1 is regular ball, 2 is torqueball
CollideSprtBallTorqueBall(ballBlip1, ballBlip2);
}
return true;
}
/// <summary>
/// This function will compare the two blips to see if they're touching or not
/// NOTE: This function DOES NOT check CollisionStyles of the blips. So if you can't gracefully handle
/// stationary penetrating blips, then don't call this function in that case.
/// </summary>
/// <remarks>
/// I will examine the types of blips to see what type of check to do (sphere on sphere, sphere on poly, poly on poly)
/// </remarks>
public virtual CollisionDepth IsColliding(RadarBlip blip1, RadarBlip blip2)
{
// For now, I will just assume they are spheres
return IsColliding_SphereSphere(blip1, blip2);
}
public Collision(RadarBlip blip1, RadarBlip blip2)
{
this.Blip1 = blip1;
this.Blip2 = blip2;
}
private void HurtBlip(Projectile projectile, RadarBlip blip)
{
#region See if a split should occur
if (blip.CollisionStyle != CollisionStyle.Standard)
{
return;
}
if (!(blip is BallBlip))
{
return;
}
BallBlip castBlip = (BallBlip)blip;
double ratio = projectile.Pain / castBlip.Ball.Mass;
double rand = _rand.NextDouble();
if (ratio < rand)
{
return;
}
#endregion
#region Calculate Split Percents
int numParts = 2 + _rand.Next(3); // between 2 and 4 parts
double[] splitPercents = new double[numParts];
double remainder = 1d;
for (int cntr = 0; cntr < numParts - 1; cntr++)
{
splitPercents[cntr] = _rand.NextDouble() * remainder;
remainder -= splitPercents[cntr];
}
splitPercents[numParts - 1] = remainder;
#endregion
#region Build Objects
_map.Remove(blip.Token);
foreach (double percent in splitPercents)
{
double size = castBlip.Ball.Mass * percent;
if (size < 20)
{
continue;
}
Ball ball;
if (castBlip.Ball is SolidBall)
{
ball = new SolidBall(castBlip.Ball.Position.Clone(), castBlip.Ball.OriginalDirectionFacing.Clone(), size, size, castBlip.Ball.Elasticity, castBlip.Ball.KineticFriction, castBlip.Ball.StaticFriction, _boundryLower, _boundryUpper);
}
else
{
ball = new Ball(castBlip.Ball.Position.Clone(), castBlip.Ball.OriginalDirectionFacing.Clone(), size, size, castBlip.Ball.Elasticity, castBlip.Ball.KineticFriction, castBlip.Ball.StaticFriction, _boundryLower, _boundryUpper);
}
ball.Velocity.StoreNewValues(castBlip.Ball.Velocity);
//TODO: Lay them out so they aren't touching each other. The smallest ones should be closest
// to the point of impact (maybe give them slightly tweaked velocities as well so they explode
// outward)
_map.Add(new BallBlip(ball, blip.CollisionStyle, blip.Qual, TokenGenerator.NextToken()));
}
#endregion
}
private void DrawScene(RadarBlip[] blips)
{
pictureBox1.ZoomFit();
pictureBox1.PrepareForNewDraw(); // _personalRenderer.Viewer is picturebox1
// Draw all the blips
foreach (RadarBlip blip in blips)
{
// Draw the blip
if (blip.Sphere is RigidBody)
{
_personalRenderer.DrawRigidBody((RigidBody)blip.Sphere, ObjectRenderer.DrawMode.Standard, blip.CollisionStyle, false);
}
else if (blip.Sphere is SolidBall)
{
_personalRenderer.DrawSolidBall((SolidBall)blip.Sphere, ObjectRenderer.DrawMode.Standard, blip.CollisionStyle, false);
}
else if (blip.Sphere is Ball)
{
_personalRenderer.DrawBall((Ball)blip.Sphere, ObjectRenderer.DrawMode.Standard, blip.CollisionStyle, false);
}
else
{
throw new ApplicationException("Unknown Blip");
}
}
pictureBox1.FinishedDrawing();
}
public static RadarBlip CloneBlip(RadarBlip blip, SimpleMap map)
{
BallBlip retVal = new BallBlip((Ball)blip.Sphere.Clone(), blip.CollisionStyle, blip.Qual, TokenGenerator.NextToken());
retVal.Ball.Velocity.StoreNewValues(((Ball)blip.Sphere).Velocity);
if (blip.Sphere is TorqueBall)
{
((TorqueBall)retVal.Sphere).AngularMomentum.StoreNewValues(((TorqueBall)blip.Sphere).AngularMomentum);
}
return retVal;
}
public RadarBlip[] GetAllBlips()
{
RadarBlip[] retVal = new RadarBlip[_blips.Values.Count];
for (int blipCntr = 0; blipCntr < retVal.Length; blipCntr++)
{
retVal[blipCntr] = _blips.Values[blipCntr];
}
return retVal;
}
public void Add(RadarBlip blip)
{
// See if I should wait
if (_isTimerRunning)
{
_addRequests.Add(blip);
return;
}
// Add it
_blips.Add(blip.Token, blip);
if (blip.CollisionStyle == CollisionStyle.Ghost)
{
_nonCollidableBlips.Add(blip);
}
else
{
_collidableBlips.Add(blip);
}
}
public virtual void PullItemsApartSpring(RadarBlip blip1, RadarBlip blip2)
{
if (blip1 is BallBlip && blip2 is BallBlip)
{
PullItemsApartSpring_BallBall((BallBlip)blip1, (BallBlip)blip2);
}
else if (blip1 is BallBlip)
{
PullItemsApartSpring_BallSphere((BallBlip)blip1, blip2);
}
else if (blip2 is BallBlip)
{
PullItemsApartSpring_BallSphere((BallBlip)blip2, blip1);
}
else
{
throw new ArgumentOutOfRangeException("Can't apply a spring force to non-balls");
}
}
private void ApplyExplosionForce(RadarBlip blip)
{
if (!(blip is BallBlip))
{
return;
}
BallBlip castBlip = (BallBlip)blip;
MyVector force = castBlip.Ball.Position - this.Ball.Position;
force.BecomeUnitVector();
force.Multiply(_explosion.Force);
// Setting the force does no good, because PrepareForNewTick is called before it can take affect
//castBlip.Ball.ExternalForce.Add(force);
force.Divide(castBlip.Ball.Mass); // F=MA
castBlip.Ball.Velocity.Add(force);
}