//pg. 256
static private List <PathNode> findAdjacentNodes(
PathNode currentNode,
PathNode endNode)
{
List <PathNode> adjacentNodes = new List <PathNode>();
int X = currentNode.GridX;
int Y = currentNode.GridY;
bool upLeft = true;
bool upRight = true;
bool downLeft = true;
bool downRight = true;
if ((X > 0) && (!TileMap.IsWallTile(X - 1, Y)))
{
adjacentNodes.Add(new PathNode(
currentNode,
endNode,
new Vector2(X - 1, Y),
CostStraight + currentNode.DirectCost));
}
else
{
upLeft = false;
downLeft = false;
}
if ((X < 49) && (!TileMap.IsWallTile(X, Y - 1)))
{
adjacentNodes.Add(new PathNode(
currentNode,
endNode,
new Vector2(X, Y - 1),
CostStraight + currentNode.DirectCost));
}
else
{
upLeft = false;
upRight = false;
}
if ((Y < 49) && (!TileMap.IsWallTile(X, Y + 1)))
{
adjacentNodes.Add(new PathNode(
currentNode,
endNode,
new Vector2(X, Y + 1),
CostStraight + currentNode.DirectCost));
}
else
{
downLeft = false;
downRight = false;
}
if ((upLeft) && (!TileMap.IsWallTile(X - 1, Y - 1)))
{
adjacentNodes.Add(new PathNode(
currentNode,
endNode,
new Vector2(X - 1, Y - 1),
CostDiagonal + currentNode.DirectCost));
}
if ((upRight) && (!TileMap.IsWallTile(X + 1, Y - 1)))
{
adjacentNodes.Add(new PathNode(
currentNode,
endNode,
new Vector2(X + 1, Y - 1),
CostDiagonal + currentNode.DirectCost));
}
if ((downLeft) && (!TileMap.IsWallTile(X - 1, Y + 1)))
{
adjacentNodes.Add(new PathNode(
currentNode,
endNode,
new Vector2(X - 1, Y + 1),
CostDiagonal + currentNode.DirectCost));
}
if ((downRight) && (!TileMap.IsWallTile(X + 1, Y + 1)))
{
adjacentNodes.Add(new PathNode(
currentNode,
endNode,
new Vector2(X + 1, Y + 1),
CostDiagonal + currentNode.DirectCost));
}
return(adjacentNodes);
}
/// <summary>
/// LoadContent will be called once per game and is the place to load
/// all of your content.
/// </summary>
protected override void LoadContent()
{
// Create a new SpriteBatch, which can be used to draw textures.
spriteBatch = new SpriteBatch(GraphicsDevice);
// TODO: use this.Content to load your game content here
//pg. 170
spriteSheet = Content.Load <Texture2D>(@"Textures\SpriteSheet");
titleScreen = Content.Load <Texture2D>(@"Textures\TitleScreen");
pericles14 = Content.Load <SpriteFont>(@"Fonts\Pericles14");
//pg. 174
Camera.WorldRectangle = new Rectangle(0, 0, 1600, 1600);
Camera.ViewPortWidth = 800;
Camera.ViewPortHeight = 600;
//pg. 184
//temp code
//tempSprite = new Sprite(
// new Vector2(100, 100),
// spriteSheet,
// new Rectangle(0, 64, 32, 32),
// Vector2.Zero);
//tempSprite2 = new Sprite(
// new Vector2(200, 200),
// spriteSheet,
// new Rectangle(0, 160, 32, 32),
// Vector2.Zero);
//temp end
//pg. 196
TileMap.Initialize(spriteSheet);
//pg. 203
Player.Initialize(
spriteSheet,
new Rectangle(0, 64, 32, 32),
6,
new Rectangle(0, 96, 32, 32),
1,
//pg. 270
new Vector2(32, 32));
//pg. 227
EffectsManager.Initialize(
spriteSheet,
new Rectangle(0, 288, 2, 2),
new Rectangle(0, 256, 32, 32),
3);
//pg. 231
WeaponManager.Texture = spriteSheet;
//pg. 270
GoalManager.Initialize(
spriteSheet,
new Rectangle(0, 7 * 32, 32, 32),
new Rectangle(3 * 32, 7 * 32, 32, 32),
3,
1);
//pg. 286
//GoalManager.GenerateComputers(10);
//pg. 279
EnemyManager.Initialize(
spriteSheet,
new Rectangle(0, 160, 32, 32));
}
//pg. 253
#region Public Methods
static public List <Vector2> FindPath(
Vector2 startTile,
Vector2 endTile)
{
if (TileMap.IsWallTile(endTile) ||
TileMap.IsWallTile(startTile))
{
return(null);
}
openList.Clear();
nodeCosts.Clear();
nodeStatus.Clear();
PathNode startNode;
PathNode endNode;
endNode = new PathNode(null, null, endTile, 0);
startNode = new PathNode(null, endNode, startTile, 0);
addNodeToOpenList(startNode);
while (openList.Count > 0)
{
PathNode currentNode = openList[openList.Count - 1];
if (currentNode.IsEqualToNode(endNode))
{
List <Vector2> bestPath = new List <Vector2>();
while (currentNode != null)
{
bestPath.Insert(0, currentNode.GridLocation);
currentNode = currentNode.ParentNode;
}
return(bestPath);
}
openList.Remove(currentNode);
nodeCosts.Remove(currentNode.GridLocation);
foreach (
PathNode possibleNode in
findAdjacentNodes(currentNode, endNode))
{
if (nodeStatus.ContainsKey(possibleNode.GridLocation))
{
if (nodeStatus[possibleNode.GridLocation] ==
NodeStatus.Closed)
{
continue;
}
if (
nodeStatus[possibleNode.GridLocation] ==
NodeStatus.Open)
{
if (possibleNode.TotalCost >=
nodeCosts[possibleNode.GridLocation])
{
continue;
}
}
}
addNodeToOpenList(possibleNode);
}
nodeStatus[currentNode.GridLocation] = NodeStatus.Closed;
}
return(null);
}
// TODO: Add your update logic here
//pg. 185
//temp code
//Vector2 spriteMove = Vector2.Zero;
//Vector2 cameraMove = Vector2.Zero;
//if (Keyboard.GetState().IsKeyDown(Keys.A))
// spriteMove.X = -1;
//if (Keyboard.GetState().IsKeyDown(Keys.D))
// spriteMove.X = 1;
//if (Keyboard.GetState().IsKeyDown(Keys.W))
// spriteMove.Y = -1;
//if (Keyboard.GetState().IsKeyDown(Keys.S))
// spriteMove.Y = 1;
//if (Keyboard.GetState().IsKeyDown(Keys.Left))
// cameraMove.X = -1;
//if (Keyboard.GetState().IsKeyDown(Keys.Right))
// cameraMove.X = 1;
//if (Keyboard.GetState().IsKeyDown(Keys.Up))
// cameraMove.Y = -1;
//if (Keyboard.GetState().IsKeyDown(Keys.Down))
// cameraMove.Y = 1;
//Camera.Move(cameraMove);
//tempSprite.Velocity = spriteMove * 60;
//tempSprite.Update(gameTime);
//tempSprite2.Update(gameTime);
//temp end
//base.Update(gameTime);
// }
/// <summary>
/// This is called when the game should draw itself.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.CornflowerBlue);
spriteBatch.Begin();
if (gameState == GameStates.TitleScreen)
{
spriteBatch.Draw(
titleScreen,
new Rectangle(0, 0, 800, 600),
Color.White);
}
if ((gameState == GameStates.Playing) ||
(gameState == GameStates.WaveComplete) ||
(gameState == GameStates.GameOver))
{
TileMap.Draw(spriteBatch);
WeaponManager.Draw(spriteBatch);
Player.Draw(spriteBatch);
EnemyManager.Draw(spriteBatch);
EffectsManager.Draw(spriteBatch);
GoalManager.Draw(spriteBatch);
checkPlayerDeath();
spriteBatch.DrawString(
pericles14,
"Score: " + GameManager.Score.ToString(),
new Vector2(30, 5),
Color.White);
spriteBatch.DrawString(
pericles14,
"Terminals Remaining: " +
GoalManager.ActiveTerminals,
new Vector2(520, 5),
Color.White);
}
if (gameState == GameStates.WaveComplete)
{
spriteBatch.DrawString(
pericles14,
"Beginning Wave " +
(GameManager.CurrentWave + 1).ToString(),
new Vector2(300, 300),
Color.White);
}
if (gameState == GameStates.GameOver)
{
spriteBatch.DrawString(
pericles14,
"G A M E O V E R!",
new Vector2(300, 300),
Color.White);
}
spriteBatch.End();
//TileMap.Draw(spriteBatch);
////pg. 231
//WeaponManager.Draw(spriteBatch);
//Player.Draw(spriteBatch);
// //pg. 280
//EnemyManager.Draw(spriteBatch);
// //pg.227
//EffectsManager.Draw(spriteBatch);
// //pg. 271
//GoalManager.Draw(spriteBatch);
//Temp code
//Vector2 mouseLocation = new Vector2(
// Mouse.GetState().X, Mouse.GetState().Y);
//mouseLocation += Camera.Position;
//List<Vector2> path = PathFinder.FindPath(
// TileMap.GetSquareAtPixel(mouseLocation),
// TileMap.GetSquareAtPixel(Player.BaseSprite.WorldCenter));
//if (!(path == null))
//{
// foreach (Vector2 node in path)
// {
// spriteBatch.Draw(
// spriteSheet,
// TileMap.SquareScreenRectangle((int)node.X,
// (int)node.Y),
// new Rectangle(0, 288, 32, 32),
// new Color(128, 0, 0, 80));
// }
//}
//End Temporary code
//spriteBatch.End();
base.Draw(gameTime);
//}
// TODO: Add your drawing code here
//pg. 184
//spriteBatch.Begin();
////pg.197
//TileMap.Draw(spriteBatch);
//tempSprite.Draw(spriteBatch);
//tempSprite2.Draw(spriteBatch);
//spriteBatch.End();
////temp end
//base.Draw(gameTime);
}
