private void ResolveCollisions(Tile tile, Player player)
{
if (tile.type == TileType.Slope)
{
tileTransform =
Matrix.CreateTranslation(new Vector3(-tile.center, 0.0f)) *
Matrix.CreateRotationZ(tile.rotation) *
Matrix.CreateTranslation(new Vector3(tile.position + scrollOffset, 0.0f));
tileRectangle = GameObject.CalculateBoundingRectangle(
new Rectangle(0, 0, tile.sprite.Width, tile.sprite.Height),
tileTransform);
if (GameObject.IntersectPixels(playerTransform, player.sprite.Width, player.sprite.Height, playerCollisionReference.textureData,
tileTransform, tile.sprite.Width, tile.sprite.Height, tile.textureData))
{
gravityAcceleration = 0;
if (player.velocity.X > 0)
{
player.position.Y -= player.velocity.X;
}
else if (player.velocity.X < 0 && (playerRectangle.Right) <= (tileRectangle.Right))
{
player.position.Y += player.velocity.X;
}
}
}
else
{
gravityAcceleration = 2;
//get the signed depth of the intersection to account for the correction vector
Vector2 depth = RectangleExtensions.GetIntersectionDepth(playerRectangle, tileRectangle);
//if the depth isn't zero...probably just a redundant check because it is assumed that the depth is not zero due to the check above on collision
if (depth != Vector2.Zero)
{
//get the absolute values to check if its a side-on collision or a bottom-top collision
float absDepthX = Math.Abs(depth.X);
float absDepthY = Math.Abs(depth.Y);
// Resolve the collision along the y-axis.
if (absDepthY < absDepthX)
{
//simply give it a new vector with its X staying the same but correcting the Y position the exact amount it collided inwards with the other rectangle
player.position = new Vector2(player.position.X, player.position.Y + depth.Y);
//reassign the rectangle a value (probably redundant since it checks again when the method is called
playerRectangle = new Rectangle((int)(player.position.X - player.center.X + scrollOffset.X), (int)(player.position.Y - player.center.Y + scrollOffset.Y), player.sprite.Width, player.sprite.Height);
}
// or Resolve the collision along the x-axis
else
{
//same here but in the side-wards direction
player.position = new Vector2(player.position.X + depth.X, player.position.Y);
//reassign the rectangle a value (probably redundant since it checks again when the method is called
playerRectangle = new Rectangle((int)(player.position.X - player.center.X + scrollOffset.X), (int)(player.position.Y - player.center.Y + scrollOffset.Y), player.sprite.Width, player.sprite.Height);
}
}
}
}
public override void LoadContent()
{
string path = "Content\\Levels\\Level" + LbKStorage.Level.ToString() + ".txt";
using (StreamReader sr = new StreamReader(path))
{
//Taken from a text file formated with 4 pieces of info. coor1,coor2,type,style,layer,object
// (float,float,TileType,int32,int32,string)
while (sr.Peek() >= 0) //apparently this keep going until the stream reader peeks and sees nothing on the line
{
string line = sr.ReadLine(); //read the current line
string[] parts = line.Split(','); //split anything that has commas to separate parts of a string array
float X = (float)Convert.ToInt32(parts[0]); //This is the first coordinate of the tile/background
float Y = (float)Convert.ToInt32(parts[1]); //This is the second coordinate of the tile/background
int objectNumber = Convert.ToInt32(parts[3]); //This is which style of the tile/background
int layerNumber = Convert.ToInt32(parts[4]); //This is the layer of the tile/background
TileType type = TileType.Block;
BackgroundType bType = BackgroundType.Normal;
if (parts[5] == "Tile")
{
if (parts[2] == "Block")
type = TileType.Block;
if (parts[2] == "Slope")
type = TileType.Slope;
if (parts[2] == "Scenery")
type = TileType.Scenery;
tempLoadedTile = new Tile(content.Load<Texture2D>("Sprites\\" + parts[2] + "\\" + parts[2] + objectNumber.ToString()));
tempLoadedTile.position = new Vector2(X, Y);
tempLoadedTile.type = type;
tempLoadedTile.objectNumber = objectNumber;
tempLoadedTile.layerNumber = layerNumber;
if (parts[2] == "Scenery")
{
tempLoadedTile.textureData =
new Color[tempLoadedTile.sprite.Width * tempLoadedTile.sprite.Height];
tempLoadedTile.sprite.GetData(tempLoadedTile.textureData);
}
Tiles.Add(tempLoadedTile);
tileRectangles.Add(new Rectangle((int)(Tiles[Tiles.Count - 1].position.X + scrollOffset.X), (int)(Tiles[Tiles.Count - 1].position.Y + scrollOffset.Y), 100, 100));
tileRectangles[tileRectangles.Count - 1] = new Rectangle((int)(Tiles[Tiles.Count - 1].position.X + scrollOffset.X), (int)(Tiles[Tiles.Count - 1].position.Y + scrollOffset.Y), 100, 100);
}
else if (parts[5] == "Background")
{
if (parts[2] == "Normal")
bType = BackgroundType.Normal;
if (parts[2] == "Other")
bType = BackgroundType.Other;
tempLoadedBackground = new Background(content.Load<Texture2D>("Backgrounds\\BackgroundTypes\\" + parts[2] + "\\" + parts[2] + "Background" + objectNumber.ToString()));
tempLoadedBackground.position = new Vector2(X, Y);
tempLoadedBackground.type = bType;
tempLoadedBackground.objectNumber = objectNumber;
tempLoadedBackground.layerNumber = layerNumber;
Backgrounds.Add(tempLoadedBackground);
backgroundRectangles.Add(new Rectangle((int)(Backgrounds[Backgrounds.Count - 1].position.X + scrollOffset.X), (int)(Backgrounds[Backgrounds.Count - 1].position.Y + scrollOffset.Y), Backgrounds[Backgrounds.Count - 1].sprite.Width, Backgrounds[Backgrounds.Count - 1].sprite.Height));
backgroundRectangles[backgroundRectangles.Count - 1] = new Rectangle((int)(Backgrounds[Backgrounds.Count - 1].position.X + scrollOffset.X), (int)(Backgrounds[Backgrounds.Count - 1].position.Y + scrollOffset.Y), Backgrounds[Backgrounds.Count - 1].sprite.Width, Backgrounds[Backgrounds.Count - 1].sprite.Height);
}
}
sr.Close();
}
tiles = new Tile[Tiles.Count];
for (int i = 0; i < Tiles.Count; i++)
{
tiles[i] = Tiles[i];
}
backgrounds = new Background[Backgrounds.Count];
for (int i = 0; i < Tiles.Count; i++)
{
backgrounds[i] = Backgrounds[i];
}
player = new Player(content.Load<Texture2D>("Sprites\\player2.0"));
if (LbKStorage.Level == 1)
{
if (LbKStorage.CheckPoint == 1)
{
player.position = new Vector2(100.0f);
}
}
base.LoadContent();
}
private void ResolveCollisionErrors(Tile tile, Player player)
{
if (player.velocity.X < 0)
{
for (int i = 0; i < tiles.Length; i++)
{
if (tiles[i].type == TileType.Slope)
{
tileRectangle = new Rectangle((int)(tiles[i].position.X - tiles[i].center.X + scrollOffset.X), (int)(tiles[i].position.Y - tiles[i].center.Y + scrollOffset.Y), tiles[i].sprite.Width, tiles[i].sprite.Height);
//where would we be five frames in the future
player.position.Y += 10;
playerRectangle = new Rectangle((int)(player.position.X - player.center.X + scrollOffset.X), (int)(player.position.Y - player.center.Y + scrollOffset.Y), player.sprite.Width, player.sprite.Height);
if (player.Collision(playerRectangle, tileRectangle))
{
player.position.Y -= 10;
gravityAcceleration = 2;
tileRectangle = new Rectangle((int)(tile.position.X - tile.center.X + scrollOffset.X), (int)(tile.position.Y - tile.center.Y + scrollOffset.Y), tile.sprite.Width, tile.sprite.Height);
playerRectangle = new Rectangle((int)(player.position.X - player.center.X + scrollOffset.X), (int)(player.position.Y - player.center.Y + scrollOffset.Y), player.sprite.Width, player.sprite.Height);
}
else
{
player.position.Y -= 10;
tileRectangle = new Rectangle((int)(tile.position.X - tile.center.X + scrollOffset.X), (int)(tile.position.Y - tile.center.Y + scrollOffset.Y), tile.sprite.Width, tile.sprite.Height);
playerRectangle = new Rectangle((int)(player.position.X - player.center.X + scrollOffset.X), (int)(player.position.Y - player.center.Y + scrollOffset.Y), player.sprite.Width, player.sprite.Height);
}
}
}
}
}
