/// <summary>
/// Updates the player.
/// </summary>
/// <param name="gameTime"> Provides a snapshot of timing values. </param>
/// <param name="level"> The level in progress. </param>
public override void Update(GameTime gameTime, Level level)
{
foreach (var playerUnit in this.PlayerUnits)
{
playerUnit.Update(gameTime);
}
// Stupid AI
// TODO: Improve
if (gameTime.TotalGameTime.Seconds % 10 == 0)
{
this.IsTurnFinished = true;
}
}
/// <summary>
/// Draws the unit as a player unit
/// </summary>
/// <param name="gameTime"> A snapshot of timing values. </param>
/// <param name="level"> The current level. </param>
/// <param name="playerUnit"> The unit </param>
private void DrawPlayerUnit(GameTime gameTime, Level level, Unit playerUnit)
{
var unitOffsetX = (Engine.TileHeight / 2)
- (playerUnit.Sprite.Height / 2);
var unitOffsetY = (Engine.TileWidth / 2)
- (playerUnit.Sprite.Width / 2);
// Converts the position of the unit to a vector that represents a
// location on the gamescreen.
var vect = new Vector2(
(playerUnit.Sprite.Position.Y * Engine.TileHeight) - level.Camera.Position.X + unitOffsetY,
(playerUnit.Sprite.Position.X * Engine.TileWidth) - level.Camera.Position.Y + unitOffsetX);
// Draws the unit.
playerUnit.Draw(
gameTime,
Game1.SpriteBatch,
vect);
}
/// <summary>
/// Draws the unit as a npc unit
/// </summary>
/// <param name="gameTime"> A snapshot of timing values. </param>
/// <param name="level"> The current level. </param>
/// <param name="npcUnit"> The unit </param>
private void DrawNPCUnit(GameTime gameTime, Level level, Unit npcUnit)
{
// Draws the NPC is Fog of War is not enabled.
if (!this.FowEnabled)
{
var unitOffsetX = (Engine.TileHeight / 2)
- (npcUnit.Sprite.Height / 2);
var unitOffsetY = (Engine.TileWidth / 2)
- (npcUnit.Sprite.Width / 2);
// Converts the position of the unit to a vector that represents a
// location on the gamescreen.
var vect = new Vector2(
(npcUnit.Sprite.Position.Y * Engine.TileHeight) - level.Camera.Position.X + unitOffsetY,
(npcUnit.Sprite.Position.X * Engine.TileWidth) - level.Camera.Position.Y + unitOffsetX);
// Draws the unit.
npcUnit.Draw(
gameTime,
Game1.SpriteBatch,
vect);
return;
}
// If FoW is enabled and the square the npc unit is on is visible, draw the unit.
if (this.IsVisible(npcUnit.Location.X, npcUnit.Location.Y))
{
var unitOffsetX = (Engine.TileHeight / 2)
- (npcUnit.Sprite.Height / 2);
var unitOffsetY = (Engine.TileWidth / 2)
- (npcUnit.Sprite.Width / 2);
// Converts the position of the unit to a vector that represents a
// location on the gamescreen.
var vect = new Vector2(
(npcUnit.Sprite.Position.Y * Engine.TileHeight) - level.Camera.Position.X + unitOffsetY,
(npcUnit.Sprite.Position.X * Engine.TileWidth) - level.Camera.Position.Y + unitOffsetX);
// Draws the unit.
npcUnit.Draw(
gameTime,
Game1.SpriteBatch,
vect);
}
}
/// <summary>
/// Draws the Fog of War on the map.
/// </summary>
/// <param name="level"> The level in progress. </param>
private void DrawFoW(Level level)
{
// Finds the square that is to the top-left.
var firstSquare = new Vector2(
level.Camera.Position.X / Engine.TileWidth,
level.Camera.Position.Y / Engine.TileHeight);
var firstX = (int)firstSquare.X;
var firstY = (int)firstSquare.Y;
// Figured out what how far the tiles have been offset.
var squareOffset = new Vector2(
level.Camera.Position.X % Engine.TileWidth,
level.Camera.Position.Y % Engine.TileHeight);
var offsetX = (int)squareOffset.X;
var offsetY = (int)squareOffset.Y;
// Iterates over all tiles that are to be drawn on the screen. Ignores all tiles that are
// outside the bounds of the scrren.
for (int y = 0; y <= level.Camera.ViewportRectangle.Width / Engine.TileWidth; y++)
{
for (int x = 0; x <= level.Camera.ViewportRectangle.Height / Engine.TileHeight; x++)
{
// Finds the actual location
int currentX = x + firstX < this.MapWidth ? x + firstX : this.MapWidth - 1;
int currentY = y + firstY < this.MapHeight ? y + firstY : this.MapHeight - 1;
// If the tile is not visible by a unit...
if (!this.IsVisible(currentY, currentX))
{
// ...draw the Fog of War texture on it.
Game1.SpriteBatch.Draw(
Engine.FoWTexture,
new Rectangle(
(x * Engine.TileWidth) - offsetX,
(y * Engine.TileHeight) - offsetY,
Engine.TileWidth,
Engine.TileHeight),
Color.White);
}
}
}
}
/// <summary>
/// Adds FoW to the area surrounding the unit.
/// Mainly used when a unit is moved.
/// </summary>
/// <param name="unit"> The unit to add FoW around. </param>
/// <param name="level"> The level in progress. </param>
private void AddFoW(Unit unit, Level level)
{
if (this.FowEnabled)
{
for (int x = 0 - unit.ViewRange; x < unit.ViewRange + 1; x++)
{
for (int y = 0 - unit.ViewRange; y < unit.ViewRange + 1; y++)
{
if (this.dataMap.WithinViewAndMap(x, y, unit))
{
this.SetVisibility(unit.Location.X + x, unit.Location.Y + y, false);
}
}
}
foreach (var playerUnit in level.PlayerController.CurrentPlayer.PlayerUnits)
{
playerUnit.HasProcessedFoW = false;
this.RemoveFoW(playerUnit);
}
}
}
/// <summary>
/// Calls the methods that are needed for when a unit is moved away.
/// </summary>
/// <param name="unit"> The unit that is moving. </param>
/// <param name="level"> The level in progress. </param>
public void MoveUnitAway(Unit unit, Level level)
{
this.SetOccupationStatus(unit.Location.X, unit.Location.Y, false);
if (this.PersistentFoW)
{
if (unit is PlayerUnit)
{
this.AddFoW(unit, level);
}
}
}
/// <summary>
/// This is called when the game should draw itself.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
/// <param name="level"> The level in progress. </param>
public void DrawMap(GameTime gameTime, Level level)
{
this.DrawTiles(level);
this.DrawUnits(gameTime, level);
if (this.FowEnabled)
{
this.DrawFoW(level);
}
}
/// <summary> /// Updates the player. /// </summary> /// <param name="gameTime"> Provides a snapshot of timing values. </param> /// <param name="level"> The level in progress. </param> public abstract void Update(GameTime gameTime, Level level);
/// <summary>
/// Updates the Controller.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
/// <param name="level">The level currently in progress.</param>
public void Update(GameTime gameTime, Level level)
{
foreach (var player in this.players)
{
player.Update(gameTime, level);
}
if (this.currentPlayer.Value.IsTurnFinished)
{
this.currentPlayer.Value.EndTurn();
this.currentPlayer = this.currentPlayer.Next ?? this.players.First;
this.currentPlayer.Value.StartTurn();
}
}
/// <summary>
/// Checks if a unit belonging to the player is at the clicked location
/// and selects it if there is.
/// </summary>
/// <param name="level"> The level. </param>
private void SelectUnit(Level level)
{
if (InputHandler.LeftMouseClicked()
&& !this.unitSelected
&& !this.justClicked)
{
// Note! MouseState.X is the horizontal position and MouseState.Y is the vertical position.
// I want Y to be the horizontal coordinate (the width) and X to be the vertical coordinate
// (the height), so tileY is using the X values and tileX is using the Y values.
var tileY = (int)(InputHandler.MouseState.X + level.Camera.Position.X) / Engine.TileHeight;
var tileX = (int)(InputHandler.MouseState.Y + level.Camera.Position.Y) / Engine.TileWidth;
foreach (var playerUnit in this.PlayerUnits)
{
// Checks if the unit matches the tile that was clicked.
if (playerUnit.Location.X == tileX && playerUnit.Location.Y == tileY)
{
// Selects the unit and thereby changes the animation of the unit.
playerUnit.Select();
this.unitSelected = true;
this.selectedUnit = playerUnit;
// Finds the area which the unit can walk to.
level.LevelMap.MarkValidMoves(this.selectedUnit);
}
}
// Ensures that other parts in the update method won't be triggered.
this.justClicked = true;
}
}
/// <summary>
/// Updates the player.
/// </summary>
/// <param name="gameTime"> Provides a snapshot of timing values. </param>
/// <param name="level"> The level in progress. </param>
public override void Update(GameTime gameTime, Level level)
{
foreach (var playerUnit in this.PlayerUnits)
{
playerUnit.Update(gameTime);
}
if (!this.IsCurrentPlayer)
{
return;
}
this.justClicked = false;
// Just testing stuff
if (InputHandler.KeyPressed(Keys.K))
{
var random = new Random();
var toChange = random.Next(this.PlayerUnits.Count);
var unit = this.PlayerUnits[toChange];
unit.CurrentHealth = unit.CurrentHealth / 2;
this.PlayerUnits.Remove(unit);
level.LevelMap.MoveUnitAway(unit, level);
}
this.SelectUnit(level);
this.DeselectUnit(level);
this.MoveUnit(level);
this.EndPlayersTurn(level);
}
/// <summary>
/// Moves the selected unit to the clicked location, assuming the location
/// is within range of the unit.
/// </summary>
/// <param name="level"> The level. </param>
private void MoveUnit(Level level)
{
if (InputHandler.LeftMouseClicked()
&& this.unitSelected
&& !this.justClicked)
{
// Note! MouseState.X is the horizontal position and MouseState.Y is the vertical position.
// I want Y to be the horizontal coordinate (the width) and X to be the vertical coordinate
// (the height), so tileY is using the X values and tileX is using the Y values.
var tileY = (int)(InputHandler.MouseState.X + level.Camera.Position.X) / Engine.TileHeight;
var tileX = (int)(InputHandler.MouseState.Y + level.Camera.Position.Y) / Engine.TileWidth;
var tempVector = new Vector(tileX, tileY);
// Checks if the chosen tile is occupied or not.
if (!level.LevelMap.IsOccupied(tileX, tileY)
&& this.selectedUnit.CanTraverse(level.LevelMap.GetCollisionType(tileX, tileY))
&& this.selectedUnit.PointWithinMoveRange(tempVector))
{
var pathToTarget = level.LevelMap.FindShortestPathWithinReach(this.selectedUnit, tempVector).Count;
if (pathToTarget != 0 && pathToTarget <= this.selectedUnit.MoveRange)
{
// Removes the unit from the list, as we need to change the
// position of the unit.
this.PlayerUnits.Remove(this.selectedUnit);
// Notifies the map that the unit is disappearing from its current
// location.
level.LevelMap.MoveUnitAway(this.selectedUnit, level);
// Changes the unit's location.
this.selectedUnit.Location = (Vector)tempVector.Clone();
this.selectedUnit.MoveUnit();
// Notifies the map that the unit has arrived at its target
// location and adds the unit to the unit list again.
level.LevelMap.MoveUnitToNewPosition(this.selectedUnit);
this.PlayerUnits.Add(this.selectedUnit);
this.unitSelected = false;
this.selectedUnit = null;
}
}
// Ensures that other parts in the update method won't be triggered.
this.justClicked = true;
}
}
/// <summary>
/// Ends the player's turn
/// </summary>
/// <param name="level"> The level. </param>
private void EndPlayersTurn(Level level)
{
if (InputHandler.KeyPressed(Keys.G))
{
this.IsTurnFinished = true;
this.selectedUnit.MoveUnit();
level.LevelMap.MoveUnitToNewPosition(this.selectedUnit);
this.unitSelected = false;
this.selectedUnit = null;
// Ensures that other parts in the update method won't be triggered.
this.justClicked = true;
}
}
/// <summary>
/// Deselects the currently selected unit.
/// </summary>
/// <param name="level"> The level. </param>
private void DeselectUnit(Level level)
{
if (InputHandler.RightMouseClicked()
&& this.unitSelected
&& !this.justClicked)
{
level.LevelMap.ClearValidMoves();
this.selectedUnit.Deselect();
this.unitSelected = false;
this.selectedUnit = null;
// Ensures that other parts in the update method won't be triggered.
this.justClicked = true;
}
}
/// <summary>
/// Draws the tiles on the DataMap.
/// </summary>
/// <param name="level"> The level in progress. </param>
private void DrawTiles(Level level)
{
// Finds the square that is to the top-left.
var firstSquare = new Vector2(
level.Camera.Position.X / Engine.TileWidth,
level.Camera.Position.Y / Engine.TileHeight);
var firstX = (int)firstSquare.X;
var firstY = (int)firstSquare.Y;
// Figured out what how far the tiles have been offset.
var squareOffset = new Vector2(
level.Camera.Position.X % Engine.TileWidth,
level.Camera.Position.Y % Engine.TileHeight);
var offsetX = (int)squareOffset.X;
var offsetY = (int)squareOffset.Y;
// Iterates over all layers in mapLayers.
foreach (var mapLayer in this.mapLayers)
{
// Ignores the collision layer.
if (mapLayer.LayerName.Equals("collision"))
{
continue;
}
// Iterates over all tiles that are to be drawn on the screen. Ignores all tiles that are
// outside the bounds of the scrren.
for (int y = 0; y <= level.Camera.ViewportRectangle.Width / Engine.TileWidth; y++)
{
for (int x = 0; x <= level.Camera.ViewportRectangle.Height / Engine.TileHeight; x++)
{
// Finds the actual tile
int currentX = x + firstX < mapLayer.Width ? x + firstX : mapLayer.Width - 1;
int currentY = y + firstY < mapLayer.Height ? y + firstY : mapLayer.Height - 1;
Tile tile = mapLayer.GetTile(currentX, currentY);
// If the tile is transparent, don't bother drawing it.
if (tile.TileID == 0)
{
continue;
}
// Draws the tile.
Game1.SpriteBatch.Draw(
this.tilesets[tile.TileSet].Texture,
new Rectangle(
(x * Engine.TileWidth) - offsetX,
(y * Engine.TileHeight) - offsetY,
Engine.TileWidth,
Engine.TileHeight),
this.tilesets[tile.TileSet].SourceRectangles[tile.TileID],
Color.White);
}
}
}
// If a unit is selected, the validMovesList is not null.
if (this.validMovesList != null)
{
// Iterates over all vector2d in the valieMovesList
foreach (var vector2 in this.validMovesList)
{
// Converts the vector to a vector that represents the position on
// the screen.
var vect = new Vector2(
(vector2.Y * Engine.TileWidth) - level.Camera.Position.X,
(vector2.X * Engine.TileHeight) - level.Camera.Position.Y);
// Draws the location with a semi-transparent blue square, indicating that
// the currently selected unit can walk to those tiles.
Game1.SpriteBatch.Draw(
Engine.ValidMoveTexture,
vect,
Color.White);
}
}
}
/// <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);
// Makes a rectangle that is used to tell the Camera how much of the game
// it is supposed to show at any given time.
var screenRectangle = new Rectangle(0, 0, this.graphics.PreferredBackBufferHeight, this.graphics.PreferredBackBufferWidth);
// Loads the texture for Fog of War and Valid Move, which are used during the game.
// Instead of saving it in the tilemap, it is saved with the Engine, as both of them
// are tilesets consisting of only one tile. No point in saving them as a full tileset in the map.
Engine.FoWTexture = this.Content.Load<Texture2D>(@"Textures\TileSets\fow_of_war");
Engine.ValidMoveTexture = this.Content.Load<Texture2D>(@"Textures\TileSets\move_range");
Font = this.Content.Load<SpriteFont>(@"Fonts\OwnFont");
var tempMap = this.mapLoader.LoadTmxFile("Test_1.tmx", this);
tempMap.FowEnabled = true;
tempMap.PersistentFoW = true;
var tempPlayerUnits = new List<Unit>();
var tempNPCUnits = new List<Unit>();
// Makes an AnimatedSprite from a spritesheet, makes a PlayerUnit from it and
// adds it to the playerUnits list.
var sprite = this.MakeSprite("Ally", "Lin28px", 28, 28);
var playerUnit = new PlayerUnit(Unit.GenerateUniqueID(tempPlayerUnits), "Akai", new Vector(5, 3), sprite, new BladesmasterClass());
tempPlayerUnits.Add(playerUnit);
sprite = this.MakeSprite("Ally", "FemaleAssassin28px", 28, 28);
playerUnit = new PlayerUnit(Unit.GenerateUniqueID(tempPlayerUnits), "Kitai", new Vector(5, 2), sprite, new AssassinClass());
tempPlayerUnits.Add(playerUnit);
sprite = this.MakeSprite("Ally", "FlyingUnit32px", 32, 32);
playerUnit = new PlayerUnit(Unit.GenerateUniqueID(tempPlayerUnits), "Flyer", new Vector(9, 10), sprite, new FlyingUnitClass());
tempPlayerUnits.Add(playerUnit);
sprite = this.MakeSprite("Enemy", "FlyingUnit32px", 32, 32);
var enemyUnit = new NPCUnit(Unit.GenerateUniqueID(tempNPCUnits), "Flyer", new Vector(10, 10), sprite, new FlyingUnitClass());
tempNPCUnits.Add(enemyUnit);
tempMap.LoadUnits(new List<Unit>(tempPlayerUnits));
tempMap.LoadUnits(new List<Unit>(tempNPCUnits));
this.CurrentLevel = new Level(
new Camera(screenRectangle),
tempMap);
this.CurrentLevel.AddPlayer(new PlayerHuman(tempPlayerUnits));
this.CurrentLevel.AddPlayer(new PlayerNPC(tempNPCUnits));
}
/// <summary>
/// Draws the units on the DataMap.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
/// <param name="level"> The level in progress. </param>
private void DrawUnits(GameTime gameTime, Level level)
{
// Iterates over every player in the level's playercontroller
// and draws the units belonging to each player.
foreach (var player in level.PlayerController.Players)
{
foreach (var unit in player.PlayerUnits)
{
if (unit is PlayerUnit)
{
this.DrawPlayerUnit(gameTime, level, unit);
}
if (unit is NPCUnit)
{
this.DrawNPCUnit(gameTime, level, unit);
}
}
}
}
/// <summary>
/// Updates the camera by responding to user input.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
/// <param name="level"> The level in progress. </param>
public void Update(GameTime gameTime, Level level)
{
// Moves the camera to the left, but makes sure it does nto leave the screen.
if (InputHandler.KeyDown(Keys.Left))
{
this.position.X = MathHelper.Clamp(
this.Position.X - this.speed, 0, (level.LevelMap.MapWidth - Engine.SquaresAcross) * Engine.TileWidth);
}
// Moves the camera to the right, but makes sure it does nto leave the screen.
if (InputHandler.KeyDown(Keys.Right))
{
this.position.X = MathHelper.Clamp(
this.Position.X + this.speed, 0, (level.LevelMap.MapWidth - Engine.SquaresAcross) * Engine.TileWidth);
}
// Moves the camera up, but makes sure it does nto leave the screen.
if (InputHandler.KeyDown(Keys.Up))
{
this.position.Y = MathHelper.Clamp(
this.Position.Y - this.speed, 0, (level.LevelMap.MapHeight - Engine.SquaresDown) * Engine.TileHeight);
}
// Moves the camera down, but makes sure it does nto leave the screen.
if (InputHandler.KeyDown(Keys.Down))
{
this.position.Y = MathHelper.Clamp(
this.Position.Y + this.speed, 0, (level.LevelMap.MapHeight - Engine.SquaresDown) * Engine.TileHeight);
}
}
