/// <summary>
/// Check if a collision occured and preform tasks specific to the collided object type.
/// </summary>
public void CheckPossibleCollision()
{
//Check every tile in the game:
for (int i = 0; i < listTiles.Count; ++i)
{
//If an abstract circle around the tile is intersecting with the player:
if (listTiles[i].CircleCollision(player))
{
//Check which tile has a possible collision
if (listTiles[i] is Trampoline)
{
//Preform actual collision detection between the tile and player to make sure
Trampoline tempTramp = (Trampoline)listTiles[i];
if (CalcRectangleSides(player.GetCorners, tempTramp.GetCorners))
{
//Check which side of the trampoline player hit.
Vector2[] testPoints = new Vector2[3] {
tempTramp.GetMidpoint, tempTramp.GetCorners[(int)MapTile.Corners.topLeft], tempTramp.GetCorners[(int)MapTile.Corners.topRight]
};
for (int k = 0; k < testPoints.Length; ++k)
{
//Check to see if the collision being checked is with the midpoint
bool isMidpoint = false;
if (testPoints[k] == tempTramp.GetMidpoint)
{
isMidpoint = true;
}
//Preform point to rectangle collision with the player to check for a collision on the specific side
tempTramp.HitSide = !SurfaceCollision(player.GetSprite.GetBounds, testPoints[k], isMidpoint);
//If there is a collision with the specific side break out of the loop
if (!tempTramp.HitSide)
{
break;
}
}
//Change the players' trajectory based on the side that was hit
tempTramp.ChangePlayerTraj(player);
}
}
if (listTiles[i] is Spike)
{
//Perform actual collision detection between the tile and player to make sure
Spike tempSpike = (Spike)listTiles[i];
if (CalcRectangleSides(player.GetCorners, tempSpike.GetCorners))
{
//Check which side of the trampoline player hit.
Vector2[] testPoints = new Vector2[3] {
tempSpike.GetMidpoint, tempSpike.GetCorners[(int)MapTile.Corners.topLeft], tempSpike.GetCorners[(int)MapTile.Corners.topRight]
};
for (int k = 0; k < testPoints.Length; ++k)
{
//Check to see if the collision being checked is with the midpoint
bool isMidpoint = false;
if (testPoints[k] == tempSpike.GetMidpoint)
{
isMidpoint = true;
}
//Perform point to rectangle collision with the player to check for a collision on the specific side
tempSpike.HitSide = !SurfaceCollision(player.GetSprite.GetBounds, testPoints[k], isMidpoint);
//If there is a collision with the specific side break out of the loop
if (!tempSpike.HitSide)
{
break;
}
}
//Change player trajectory (or possibly kill him) based on the side that was hit
tempSpike.ChangePlayerTraj(player);
}
}
if (listTiles[i] is Bubble)
{
if (!player.InBubble && !player.PoppedBubble)
{
//Preform actual collision detection between the tile and player to make sure
if (CalcRectangleSides(player.GetCorners, listTiles[i].GetCorners))
{
//Change the properties of both the player and the bubble
player.InBubble = true;
((Bubble)listTiles[i]).FollowPlayer = true;
}
}
//Change the acceleraion of the player based on the velocity
if (player.PoppedBubble && !player.InBubble)
{
player.PoppedBubble = false;
}
else if (player.PoppedBubble && player.InBubble)
{
listTiles.RemoveAt(i);
player.PoppedBubble = false;
player.InBubble = false;
}
}
if (listTiles[i] is Apple)
{
//Preform actual collision detection between the tile and player to make sure
if (CalcRectangleSides(player.GetCorners, listTiles[i].GetCorners))
{
//Change the properties of the apple to make the level complete
((Apple)listTiles[i]).LevelComplete = true;
}
}
if (listTiles[i] is Brick)
{
//Preform actual collision detection between the tile and player to make sure
Brick tempBrick = (Brick)listTiles[i];
//player .GetSprite.SetPosition(player.GetSprite.GetPosition + (player.Trajectory * 2));
//player.CalcCorners();
if (CalcRectangleSides(player.GetCorners, tempBrick.GetCorners))
{
//Check which side of the brick player hit.
Vector2[] testPoints = new Vector2[4]
{
tempBrick.GetMidpoints[1],
tempBrick.GetMidpoints[3],
tempBrick.GetMidpoints[0],
tempBrick.GetMidpoints[2],
};
for (int k = 0; k < testPoints.Length; ++k)
{
//Check to see if the player collided with any of the midpoints of the brick
if (SurfaceCollision(player.GetSprite.GetBounds, testPoints[k], true))
{
//Stop the creation of particles
player.NoParticles = true;
//Check which midpoint was caught to ne colliding with the player
if (k == 2)
{
//Change the players trajectory and remove gravity effects since it hit the top of the brick.
tempBrick.ChangePlayerTraj("top", player);
//If the player is not in the bubble
if (!player.InBubble)
{
player.CancelGravity = true;
}
}
else
{
//Reapply gravity
player.CancelGravity = false;
//Change the player's trajectory or location based on the side that was hit.
if (k == 0)
{
tempBrick.ChangePlayerTraj("right", player);
}
else if (k == 1)
{
// Player.gameState = Player.States.test;
tempBrick.ChangePlayerTraj("left", player);
}
else if (k == 3)
{
tempBrick.ChangePlayerTraj("bottom", player);
}
break;
}
}
}
}
}
//Reactivate the particles if no specific tile was hit.
else
{
player.NoParticles = false;
}
}
}
}