/// <summary>
/// Checks to see if the given object is in bounds or not
/// </summary>
/// <param name="objectToCheck">Object we are checking for collisions with</param>
public void CheckBounds(PhysicsObject objectToCheck)
{
Rectangle currentBoundingBox = objectToCheck.BoundingBox;
Vector2 dPos = objectToCheck.ObjectVelocity;
Color[] mapData = new Color[currentBoundingBox.Width * currentBoundingBox.Height];
while (isTouchingBounds(new Rectangle(
currentBoundingBox.X,currentBoundingBox.Y,
currentBoundingBox.Width,currentBoundingBox.Height), dPos, mapData))
dPos = Vector2.Multiply(dPos, .75f);
objectToCheck.ObjectVelocity = dPos;
}
/// <summary>
/// Returns true if the physics objects are colliding with each other
///
/// TODO - Add pixel perfect collision
/// </summary>
/// <param name="otherObject">The other object to test against</param>
/// <returns>True if they are colliding with each other; False otherwise</returns>
public virtual bool IsColliding(PhysicsObject otherObject)
{
return !Equals(otherObject) && mBoundingBox.Intersects(otherObject.mBoundingBox);
}
/// <summary>
/// Checks to see if given object is colliding with any other object and handles the collision
/// </summary>
/// <param name="physObj">object to see if anything is colliding with it</param>
private void HandleCollisions(PhysicsObject physObj, ref GameStates gameState)
{
// keep track of all object colliding with physObj
List<GameObject> collidingList = new List<GameObject>();
Vector2 gridPos = GridSpace.GetGridCoord(physObj.mPosition);
//Goes through the 9 possible positions for collision to see if this physics object is colliding with anything
for (int i = -1; i < 2; i++)
{
if (gridPos.Y + i < 0 || gridPos.Y + i >= mCollisionMatrix.Length) continue;//Bounds check
for (int j = -1; j < 2; j++)
{
if (gridPos.X + j < 0 || gridPos.X + j >= mCollisionMatrix[(int)gridPos.Y + i].Length) continue;//Bounds check
foreach (GameObject obj in mCollisionMatrix[(int)gridPos.Y+i][(int)gridPos.X+j])
{
bool collided = false;
if (physObj.IsSquare && obj.IsSquare)// both squares
{
collided = physObj.IsCollidingBoxAndBox(obj);
}
else if (!physObj.IsSquare && obj.IsSquare) // phys obj is circle
{
collided = physObj.IsCollidingCircleAndBox(obj);
}
else if (physObj.IsSquare && !obj.IsSquare) //obj is circle
{
collided = physObj.IsCollidingBoxAndCircle(obj);
}
else // both circles
{
collided = physObj.IsCollidingCircleandCircle(obj);
}
if (obj.Equals(physObj) || obj is PlayerEnd && !(physObj is Player))
continue;
if (collided && !(obj is PlayerEnd))
{
collidingList.Add(obj);
}
//If player reaches the end, set the timer to 0
if (collided && obj is PlayerEnd && physObj is Player)
{
mPlayer.mCurrentTexture = PlayerFaces.FromString("Laugh");
mPlayerEnd.mCurrentTexture = PlayerFaces.FromString("GirlLaugh3");
GameSound.StopOthersAndPlay(GameSound.level_stageVictory);
mPhysicsEnvironment.GravityDirection = GravityDirections.Down;
gameState = GameStates.Unlock;
}
//If player collided with a collectable object
if (collided && ((physObj is Player) && obj.CollisionType == XmlKeys.COLLECTABLE || (obj is Player) && physObj.CollisionType == XmlKeys.COLLECTABLE))
{
if (physObj.CollisionType == XmlKeys.COLLECTABLE)
{
mCollected.Add(physObj);
mRemoveCollected.Add(physObj);
mCollectableLocations.Remove(physObj.mPosition);
}
else if (obj.CollisionType == XmlKeys.COLLECTABLE)
{
mCollected.Add(obj);
mRemoveCollected.Add(obj);
mCollectableLocations.Remove(obj.mPosition);
}
GameSound.playerCol_collectable.Play(GameSound.volume * 0.8f, 0f, 0f);
collectibleEngine.EmitterLocation = new Vector2(obj.mPosition.X + 32, obj.mPosition.Y + 32);
collectibleEngine.Update(10);
}
//If player hits a hazard
else if (collided && ((physObj is Player) && obj.CollisionType == XmlKeys.HAZARDOUS || (obj is Player) && physObj.CollisionType == XmlKeys.HAZARDOUS))
{
// Particle Effects (don't work).
//Vector2 one = new Vector2(obj.mPosition.X + 32, obj.mPosition.Y + 32);
//Vector2 two = new Vector2(physObj.mPosition.X + 32, physObj.mPosition.Y + 32);
//Vector2 midpoint = new Vector2((one.X + two.X) / 2, (one.Y + two.Y) / 2);
//wallEngine.EmitterLocation = midpoint;
//wallEngine.Update(10);
GameSound.playerSound_death.Play(GameSound.volume * 0.8f, 0.0f, 0.0f);
if (physObj is Player)
{
physObj.Kill();
mPlayerEnd.mCurrentTexture = PlayerFaces.FromString("GirlSad");
}
else
{
((Player)obj).Kill();
mPlayerEnd.mCurrentTexture = PlayerFaces.FromString("GirlSad");
}
//Get difference of two positions
mDeathPanLength = Vector3.Subtract(new Vector3(mPlayer.SpawnPoint.X - 275, mPlayer.SpawnPoint.Y - 100, 0), mCam.Position);
//Divide by scaling factor to get camera pan at each update.
mDeathPanLength = Vector3.Divide(mDeathPanLength, SCALING_FACTOR);
//Set the update counter to zero
mDeathPanUpdates = 0;
gameState = GameStates.Death;
mDeathState = DeathStates.Respawning;
mHasRespawned = false;
return;
}
}
//Start any animations on walls we are touching
if (physObj is Player)
foreach (GameObject cObject in collidingList)
{
if (cObject is Wall)
{
KeyValuePair<Vector2, string> animation = ((Wall)cObject).NearestWallPosition(physObj.mPosition);
if (!mActiveAnimations.ContainsKey(animation.Key))
mActiveAnimations.Add(animation.Key, GetAnimation(animation.Value));
// Particle Effects.
//if (cObject != lastCollided[0] && cObject != lastCollided[1])
if (cObject != lastCollided)
{
Vector2 one = new Vector2(mPlayer.Position.X + 32, mPlayer.Position.Y + 32);
Vector2 two = new Vector2(animation.Key.X + 32, animation.Key.Y + 32);
Vector2 midpoint = new Vector2((one.X + two.X) / 2, (one.Y + two.Y) / 2);
wallEngine.EmitterLocation = midpoint;
wallEngine.Update(10);
// play wall collision sound
GameSound.playerCol_wall.Play(GameSound.volume * 0.8f, 0f, 0f);
//lastCollided[1] = lastCollided[0];
//lastCollided[0] = cObject;
lastCollided = cObject;
}
}
else if (cObject is MovingTile && !((MovingTile)cObject).BeingAnimated && cObject.CollisionType != XmlKeys.HAZARDOUS)
((MovingTile)cObject).StartAnimation(GetAnimation(cObject.mName));
else if (cObject is ReverseTile && !((ReverseTile)cObject).BeingAnimated && cObject.CollisionType != XmlKeys.HAZARDOUS)
((ReverseTile)cObject).StartAnimation(GetAnimation(cObject.mName));
else if (cObject is StaticObject && cObject.CollisionType != XmlKeys.COLLECTABLE)
{
if (!mActiveAnimations.ContainsKey(cObject.mPosition))
mActiveAnimations.Add(cObject.mPosition, GetAnimation(cObject.mName));
// Particle Effects.
//if (cObject != lastCollided[0] && cObject != lastCollided[1])
if (cObject != lastCollided)
{
Vector2 one = new Vector2(mPlayer.Position.X + 32, mPlayer.Position.Y + 32);
Vector2 two = new Vector2(cObject.mPosition.X + 32, cObject.mPosition.Y + 32);
Vector2 midpoint = new Vector2((one.X + two.X) / 2, (one.Y + two.Y) / 2);
wallEngine.EmitterLocation = midpoint;
wallEngine.Update(10);
// play wall collision sound
GameSound.playerCol_wall.Play(GameSound.volume * 0.8f, 0f, 0f);
//lastCollided[1] = lastCollided[0];
//lastCollided[0] = cObject;
lastCollided = cObject;
}
}
}
physObj.HandleCollisionList(collidingList);
}
}
}