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Board.cs
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Board.cs
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using System;
using System.Collections.Generic;
using Gtk;
using Mono;
namespace Bounce
{
public class AreaFilledEventArgs : EventArgs
{
public int FilledArea;
public AreaFilledEventArgs (int filled)
{
FilledArea = filled;
}
}
public delegate void AreaFilledHandler (object sender, AreaFilledEventArgs e);
public delegate void PlayerCollisionHandler (object sender, EventArgs e);
public class Board
{
protected List<Ball> balls = new List<Ball> ();
protected List<Monster> monsters = new List<Monster> ();
private Field[,] fields;
public int FieldSize { get; protected set; }
const int hitLimit = 1000;
BoardRenderer renderer;
public string OverlayText {
set {
renderer.RenderOverlay (value);
}
}
public Player Player {
get;
protected set;
}
public int Width { get; protected set; }
public int Height { get; protected set; }
public event AreaFilledHandler AreaFilled;
public event PlayerCollisionHandler PlayerCollision;
public Board (int width, int height, int fieldSize, BoardRenderer renderer)
{
this.renderer = renderer;
this.Width = width;
this.Height = height;
this.Clear ();
this.FieldSize = fieldSize;
renderer.RefreshBackground (fields);
}
public void Clear ()
{
balls = new List<Ball> ();
monsters = new List<Monster> ();
fields = new Field[Width, Height];
for (int i = 0; i < Width; i++) {
for (int j = 0; j < Height; j++) {
fields [i, j] = new Field ();
if (i == 0 || j == 0 || i + 1 == Width || j + 1 == Height) {
fields [i, j].Full = true;
} else {
fields [i, j].Full = false;
}
fields [i, j].X = i;
fields [i, j].Y = j;
}
}
Player = new Player (0, 0);
Player.BaseField = fields [0, 0];
renderer.RefreshBackground (fields);
}
public void Render ()
{
renderer.Render (Player, balls, monsters);
}
public void AddBall (int x, int y, int dX, int dY)
{
balls.Add (new Ball (x * FieldSize, y * FieldSize, dX, dY));
}
public void AddMonster (string type)
{
double[,] record = new double [Width, Height];
Field playerField = crossedField (Player.X, Player.Y);
record [playerField.X, playerField.Y] = -1;
for (int i = 0; i < Width; i++) {
for (int j = 0; j < Height; j++) {
if (fields [i, j].Full && record [i, j] != -1) {
record [i, j] = (monsters.Count + 1) * Math.Sqrt (Math.Pow (i - playerField.X, 2) + Math.Pow (j - playerField.Y, 2));
foreach (Monster monster in monsters) {
Field monsterField = crossedField (monster.X, monster.Y);
record [monsterField.X, monsterField.Y] = -1;
record [i, j] += Math.Sqrt (Math.Pow (i - monsterField.X, 2) + Math.Pow (j - monsterField.Y, 2));
}
}
}
}
Field field = null;
double maxRank = -1;
for (int i = 0; i < Width; i++) {
for (int j = 0; j < Height; j++) {
if (record [i, j] > maxRank) {
field = fields [i, j];
maxRank = record [i, j];
}
}
}
MonsterStrategy strategy = (MonsterStrategy)Activator.CreateInstance (Type.GetType ("Bounce." + type));
monsters.Add (new Monster (strategy, type, field.X * FieldSize, field.Y * FieldSize));
}
protected void closeTrail ()
{
int filled = 0;
List<Field> ballMap = new List<Field> ();
foreach (Ball ball in balls) {
ballMap.Add (crossedField (ball.X, ball.Y));
}
foreach (Field field in Player.Trail) {
field.Full = true;
filled += 1;
}
Player.Trail = new List<Field> ();
bool[,] visited = new bool[Width, Height];
List<Field> reserve = new List<Field> ();
Func<bool> visitedAll = (delegate () {
for (int i = 0; i < visited.GetLength(0); i++) {
for (int j = 0; j < visited.GetLength(1); j++) {
if (!visited [i, j] && !fields [i, j].Full) {
return false;
}
}
}
return true;
});
do {
reserve = calculateReserve (ballMap, visited);
foreach (Field field in reserve) {
field.Full = true;
filled += 1;
}
} while (!visitedAll());
renderer.RefreshBackground (fields);
if (AreaFilled != null) {
AreaFilled (this, new AreaFilledEventArgs (filled));
}
}
protected List<Field> calculateReserve (List<Field> ballMap, bool[,] visited)
{
Field start = null;
bool containsBall = false;
List<Field> result = new List<Field> ();
for (int i = 0; i < Width; i++) {
for (int j = 0; j < Height; j++) {
if (!fields [i, j].Full && !visited [i, j]) {
start = fields [i, j];
visited [i, j] = true;
result.Add (start);
break;
}
}
if (start != null) {
break;
}
}
if (start != null) {
Queue<Field> queue = new Queue<Field> ();
queue.Enqueue (start);
while (queue.Count > 0) {
Field field = queue.Dequeue ();
if (ballMap.Contains (field)) {
containsBall = true;
}
foreach (Field neighbour in GetNeighbours(field)) {
if (!neighbour.Full && !visited [neighbour.X, neighbour.Y]) {
result.Add (neighbour);
queue.Enqueue (neighbour);
}
visited [neighbour.X, neighbour.Y] = true;
}
}
}
if (containsBall) {
result.Clear ();
}
return result;
}
public IEnumerable<Field> GetNeighbours (Field field)
{
if (field.X > 0) {
yield return fields [field.X - 1, field.Y];
}
if (field.X + 1 < Width) {
yield return fields [field.X + 1, field.Y];
}
if (field.Y > 0) {
yield return fields [field.X, field.Y - 1];
}
if (field.Y + 1 < Height) {
yield return fields [field.X, field.Y + 1];
}
}
public void MoveBalls ()
{
foreach (Ball ball in balls) {
int posX = (ball.X + FieldSize / 2) / FieldSize;
int posY = (ball.Y + ball.dY) / FieldSize;
if (fields [posX, posY + 1].Full && ball.dY > 0) {
ball.BounceY ();
}
if (fields [posX, posY].Full && ball.dY < 0) {
ball.BounceY ();
}
posX = (ball.X + ball.dX) / FieldSize;
posY = (ball.Y + FieldSize / 2) / FieldSize;
if (fields [posX + 1, posY].Full && ball.dX > 0) {
ball.BounceX ();
}
if (fields [posX, posY].Full && ball.dX < 0) {
ball.BounceX ();
}
ball.X += ball.dX;
ball.Y += ball.dY;
}
checkBallCollisions ();
}
protected void checkBallCollisions ()
{
foreach (Ball ball in balls) {
if (Player.Trail.Contains (crossedField (ball.X, ball.Y))) {
Player.Trail.Clear ();
Player.Place (Player.BaseField.X * FieldSize, Player.BaseField.Y * FieldSize);
Player.HitTime = DateTime.Now;
if (PlayerCollision != null) {
PlayerCollision (this, EventArgs.Empty);
}
}
}
}
public void MoveMonsters ()
{
foreach (Monster monster in monsters) {
Field field = crossedField (monster.X, monster.Y);
if (monster.Remaining == 0) {
monster.StartMove (new NeighbourMap (field, GetNeighbours (field)), this);
monster.Move (1);
monster.Stop (checkedSpriteDistance (monster, calculateResidualSteps (monster)));
} else {
monster.Move (1);
}
}
checkMonsterCollisions ();
}
protected void checkMonsterCollisions ()
{
foreach (Monster monster in monsters) {
if (crossedField (monster.X, monster.Y) == crossedField (Player.X, Player.Y) && (DateTime.Now - Player.HitTime).TotalMilliseconds > hitLimit) {
Player.HitTime = DateTime.Now;
if (PlayerCollision != null) {
PlayerCollision (this, EventArgs.Empty);
}
}
}
}
public void MovePlayer ()
{
if (Player.Moving) {
if (checkedSpriteDistance (Player, 1) == 0) {
Player.Stop (0);
} else {
Player.Move (1);
}
} else if (Player.Remaining > 0) {
Player.Move (1);
if (Player.Remaining == 0 && Player.SteeringStack.Count > 0) {
Player.StartMove (Player.SteeringStack.Last.Value);
}
}
Field playerField = crossedField (Player.X, Player.Y);
if (!playerField.Full && !Player.Trail.Contains (playerField)) {
Player.Trail.Add (playerField);
} else if (playerField.Full) {
if (Player.Trail.Count > 0) {
closeTrail ();
}
Player.BaseField = playerField;
}
checkBallCollisions ();
checkMonsterCollisions ();
}
protected Field crossedField (int x, int y)
{
return fields [x / FieldSize, y / FieldSize];
}
public int checkedSpriteDistance (Sprite sprite, int steps)
{
int max = 0;
switch (sprite.Direction) {
case Direction.Down:
max = Height * FieldSize - (sprite.Y + FieldSize);
break;
case Direction.Up:
max = sprite.Y;
break;
case Direction.Right:
max = Width * FieldSize - (sprite.X + FieldSize);
break;
case Direction.Left:
max = sprite.X;
break;
}
return Math.Min (steps, max);
}
public int calculateResidualSteps (Sprite sprite)
{
switch (sprite.Direction) {
case Direction.Up:
return sprite.Y % FieldSize;
case Direction.Down:
return FieldSize - sprite.Y % FieldSize;
case Direction.Right:
return FieldSize - sprite.X % FieldSize;
case Direction.Left:
return sprite.X % FieldSize;
default:
return FieldSize;
}
}
public void SteerPlayer (Direction direction)
{
if (!Player.SteeringStack.Contains (direction)) {
Player.SteeringStack.AddLast (direction);
if (!Player.Moving && Player.Remaining == 0) {
Player.StartMove (direction);
} else {
if (Player.Moving) {
Player.Stop (checkedSpriteDistance (Player, calculateResidualSteps (Player)));
}
}
}
}
public void UnsteerPlayer (Direction direction)
{
if (Player.SteeringStack.Contains (direction)) {
Player.SteeringStack.Remove (direction);
if (Player.SteeringStack.Count > 0) {
if (Player.Direction == direction) {
Player.Stop (checkedSpriteDistance (Player, calculateResidualSteps (Player)));
}
if (Player.Remaining == 0) {
Player.StartMove (Player.SteeringStack.Last.Value);
}
} else {
Player.Stop (checkedSpriteDistance (Player, calculateResidualSteps (Player)));
}
}
}
}
public class NeighbourMap
{
public Field Current {
get;
protected set;
}
public Field Left {
get;
protected set;
}
public Field Up {
get;
protected set;
}
public Field Right {
get;
protected set;
}
public Field Down {
get;
protected set;
}
public NeighbourMap (Field current, IEnumerable<Field> neighbours)
{
this.Current = current;
foreach (Field neighbour in neighbours) {
if (neighbour.X == current.X - 1) {
Left = neighbour;
}
if (neighbour.X == current.X + 1) {
Right = neighbour;
}
if (neighbour.Y == current.Y - 1) {
Up = neighbour;
}
if (neighbour.Y == current.Y + 1) {
Down = neighbour;
}
}
}
}
}