/// <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
var collidingList = new List<GameObject>();
var gridPos = GridSpace.GetGridCoord(physObj.MPosition);
//Goes through the 9 possible positions for collision to see if this physics object is colliding with anything
for (var i = -1; i < 2; i++)
{
if (gridPos.Y + i < 0 || gridPos.Y + i >= _mCollisionMatrix.Length) continue;//Bounds check
for (var j = -1; j < 2; j++)
{
if (gridPos.X + j < 0 || gridPos.X + j >= _mCollisionMatrix[(int)gridPos.Y + i].Length) continue;//Bounds check
foreach (var obj in _mCollisionMatrix[(int)gridPos.Y+i][(int)gridPos.X+j])
{
var 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.LevelStageVictory);
_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.PlayerColCollectable.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.PlayerSoundDeath.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, ScalingFactor);
//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 (var cObject in collidingList)
{
if (cObject is Wall)
{
var 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)
{
var one = new Vector2(_mPlayer.Position.X + 32, _mPlayer.Position.Y + 32);
var two = new Vector2(animation.Key.X + 32, animation.Key.Y + 32);
var midpoint = new Vector2((one.X + two.X) / 2, (one.Y + two.Y) / 2);
_wallEngine.EmitterLocation = midpoint;
_wallEngine.Update(10);
// play wall collision sound
GameSound.PlayerColWall.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)
{
var one = new Vector2(_mPlayer.Position.X + 32, _mPlayer.Position.Y + 32);
var two = new Vector2(cObject.MPosition.X + 32, cObject.MPosition.Y + 32);
var midpoint = new Vector2((one.X + two.X) / 2, (one.Y + two.Y) / 2);
_wallEngine.EmitterLocation = midpoint;
_wallEngine.Update(10);
// play wall collision sound
GameSound.PlayerColWall.Play(GameSound.Volume * 0.8f, 0f, 0f);
//lastCollided[1] = lastCollided[0];
//lastCollided[0] = cObject;
_lastCollided = cObject;
}
}
}
physObj.HandleCollisionList(collidingList);
}
}
}
/// <summary>
/// Updates the collision matrix with the new position
/// </summary>
/// <param name="obj">Object we want to update</param>
/// <param name="oldPosition">Position where object was before</param>
private void UpdateCollisionMatrix(GameObject obj, Vector2 oldPosition)
{
var newPosition = GridSpace.GetGridCoord(obj.MPosition);
if (oldPosition.Equals(newPosition)) return;
_mCollisionMatrix[(int)oldPosition.Y][(int)oldPosition.X].Remove(obj);
if(!_mCollisionMatrix[(int)newPosition.Y][(int)newPosition.X].Contains(obj))
_mCollisionMatrix[(int)newPosition.Y][(int)newPosition.X].Add(obj);
}
/// <summary>
/// Loads the level from the content manager
/// </summary>
/// <param name="content">Content Manager to load from</param>
public void Load(ContentManager content, string assetName)
{
_mKootenay = content.Load<SpriteFont>("fonts/Kootenay");
_mQuartz = content.Load<SpriteFont>("fonts/QuartzLarge");
// mDirections = new Texture2D[4];
// mDirections[3] = content.Load<Texture2D>("HUD/arrow_left");
// mDirections[2] = content.Load<Texture2D>("HUD/arrow_down");
// mDirections[1] = content.Load<Texture2D>("HUD/arrow_right");
// mDirections[0] = content.Load<Texture2D>("HUD/arrow_up");
_mRailLeft = content.Load<Texture2D>("Images/NonHazards/Rails/RailLeft");
_mRailHor = content.Load<Texture2D>("Images/NonHazards/Rails/RailHorizontal");
_mRailRight = content.Load<Texture2D>("Images/NonHazards/Rails/RailRight");
_mRailTop = content.Load<Texture2D>("Images/NonHazards/Rails/RailTop");
_mRailBottom = content.Load<Texture2D>("Images/NonHazards/Rails/RailBottom");
_mRailVert = content.Load<Texture2D>("Images/NonHazards/Rails/RailVertical");
_mContent = content;
MNumCollected = 0;
MNumCollectable = 0;
// Particle Engine
var textures = new List<Texture2D>();
textures.Add(content.Load<Texture2D>("Images/Particles/diamond"));
textures.Add(content.Load<Texture2D>("Images/Particles/star"));
_collectibleEngine = new ParticleEngine.ParticleEngine(textures, new Vector2(400, 240), 20);
_collectibleEngine.ColorScheme = "Yellow";
textures = new List<Texture2D>();
textures.Add(content.Load<Texture2D>("Images/Particles/line"));
textures.Add(content.Load<Texture2D>("Images/Particles/square"));
_wallEngine = new ParticleEngine.ParticleEngine(textures, new Vector2(400, 240), 20);
_wallEngine.ColorScheme = "Blue";
_backGroundParticleCount = 500;
_backgroundParticles = new Particle[_backGroundParticleCount];
var random = new Random();
var particle = content.Load<Texture2D>("Images/Particles/diamond");
for (var i = 0; i < _backGroundParticleCount; i++)
{
var pos = new Vector2(random.Next(-(int)(_mBounds.Width + Size.X) / 2, 3 * (int)(_mBounds.Width + Size.X) / 2),
random.Next(-(int)(_mBounds.Height + Size.Y) / 2, 3 * (int)(_mBounds.Height + Size.Y) / 2));
_backgroundParticles[i] = new Particle(particle, pos, random);
}
//lastCollided = new GameObject[2];
//lastCollided[0] = lastCollided[1] = null;
_lastCollided = null;
_mCollectableLocations = new List<Vector2>();
}
/// <summary>
/// Removes the object from the matrix(for collectables
/// </summary>
/// <param name="obj">Object we want to remove</param>
private void RemoveFromMatrix(GameObject obj)
{
var position = GridSpace.GetGridCoord(obj.MPosition);
_mCollisionMatrix[(int)position.Y][(int)position.X].Remove(obj);
}
