/**
* Sets the face and passable value of the tile at the specified (x, y) location.
*
* @param face the new face of the tile
* @param passable the new passable value of the tile
* @param x the x value of the position being updated
* @param y the y value of the position being updated
*/
public void setTile(ColoredChar face, boolean passable, int x, int y) {
Guard.argumentIsNotNull(face);
Guard.argumentsInsideBounds(x, y, width, height);
grid[x][y].face = face;
grid[x][y].passable = passable;
}
/**
* Sets the count for a particular value in the specified {@code Categorical} distribution.
*
* @param key the key of the {@code Categorical} being modified
* @param value the value whose count is being set
* @param count the new count of the value
*/
public void setCount(K key, V value, int count) {
Guard.argumentsAreNotNull(key, value);
Guard.argumentIsNonNegative(count);
int change = count - getCountGiven(key, value);
totals.setCount(value, totals.getCount(value) + change);
getCategorical(key).setCount(value, count);
}
/**
* Removes an {@code Actor} from the {@code World}. The {@code Actor} must be both bound to this
* {@code World} and not held by another {@code Actor}. However, if the {@code Actor} is expired,
* it may always be removed.
*
* @param actor the {@code Actor} to be removed
*/
public void removeActor(Actor actor) {
Guard.argumentIsNotNull(actor);
Guard.verifyState(actor.bound(this));
Guard.verifyState(!actor.held() || actor.expired());
unregisterActor(actor);
removeFromGrid(actor);
actor.setWorld(null);
}
/**
* Adds an {@code Actor} to the {@code World} at the specified location.
*
* @param actor the {@code World} being added
* @param x the x location of the {@code Actor}
* @param y the y location of the {@code Actor}
*/
public void addActor(Actor actor, int x, int y) {
Guard.argumentIsNotNull(actor);
Guard.argumentsInsideBounds(x, y, width, height);
Guard.verifyState(!actor.bound());
Guard.verifyState(!actor.held());
actor.setWorld(this);
actor.setXY(x, y);
addToGrid(actor);
registerActor(actor);
}
/**
* Gets a randomly chosen open tile on the {@code World} within the given bounds. If after 100
* randomly selected tiles are closed, then each tile will be checked and the first open tile
* found is returned. If the entire {@code World} is closed, null is returned.
*
* @param dice the random number generator used to randomly select tiles
* @param x1 the bounds left most value
* @param y1 the bounds upper most value
* @param x2 the bounds right most value
* @param y2 the bounds bottom most value
* @return a randomly chosen open tile
*/
public Coordinate getOpenTile(Dice dice, int x1, int y1, int x2, int y2) {
Guard.argumentIsNotNull(dice);
Guard.argumentsInsideBounds(x1, y1, width, height);
Guard.argumentsInsideBounds(x2, y2, width, height);
for (int i = 0; i < 100; i++) {
int x = dice.nextInt(x1, x2);
int y = dice.nextInt(y1, y2);
if (passableAt(x, y)) return new Coordinate(x, y);
}
for (int x = x1; x <= x2; x++)
for (int y = y1; y <= y2; y++) if (passableAt(x, y)) return new Coordinate(x, y);
return null;
}
/**
* Constructs a new {@code World} with the given dimensions. Both width and height must be
* positive integers.
*
* @param width the width of the new {@code World}
* @param height the height of the new {@code World}
*/
public World(int width, int height) {
Guard.argumentsArePositive(width, height);
this.width = width;
this.height = height;
grid = new Tile[width][height];
for (int x = 0; x < width; x++) for (int y = 0; y < height; y++) grid[x][y] = new Tile();
register = new HashSet<Actor>();
drawOrder = new ArrayList<Class<? extends Actor>>();
drawOrder.add(Actor.class);
actOrder = new ArrayList<Class<? extends Actor>>();
actOrder.add(Actor.class);
}
/**
* Returns every tile that is visible at a given location, ordered such that the tile with highest
* priority (the tile returned by look) is first, and the lowest priority is last. This last tile
* will be the face of the actual tile itself. Note that any actor which has a null face will not
* be included.
*
* @param x the x value of the location being queried
* @param y the y value of the location being queried
* @return every tile that is visible at a given location
*/
public List<ColoredChar> lookAll(int x, int y) {
Guard.argumentsInsideBounds(x, y, width, height);
List<ColoredChar> look = new ArrayList<ColoredChar>();
for (Class<? extends Actor> cls : drawOrder)
for (Actor actor : getActorsAt(cls, x, y)) {
ColoredChar face = actor.face();
if (face != null) look.add(actor.face());
}
look.add(tileAt(x, y));
return look;
}
/**
* Returns a {@code Collection<T extends Actor>} of all {@code Actor} of the given class at the
* given location.
*
* @param <T> the generic type of the class type to be returned
* @param cls the {@code Class<T extends Actor>} of the {@code Actor} to be returned
* @param pos the location being queried
* @return a {@code Collection<T extends Actor>} of all {@code Actor} of the given class located
* at (x, y)
*/
public final <T extends Actor> Collection<T> getActorsAt(Class<T> cls, Coordinate pos) {
Guard.argumentIsNotNull(pos);
return getActorsAt(cls, pos.x(), pos.y());
}
public Boolean isviewable(int x, int y) {
Guard.argumentsInsideBounds(x, y, width, height); // �berpr�ft, ob etwas sichtbar ist
return grid[x][y].viewable;
}
/**
* Returns the face of the tile at the provided coordinates.
*
* @param coord the value of the position being queried
* @return the face of the tile at then given {@code Coordinate}
*/
public final ColoredChar tileAt(Coordinate coord) {
Guard.argumentIsNotNull(coord);
return tileAt(coord.x(), coord.y());
}
/**
* Returns the face of the tile at the provided (x, y) coordinates.
*
* @param x the x value of the position being queried
* @param y the y value of the position being queried
* @return the face of the tile at (x, y)
*/
public ColoredChar tileAt(int x, int y) {
Guard.argumentsInsideBounds(x, y, width, height);
return grid[x][y].face;
}
public void viewable(int x, int y) {
Guard.argumentsInsideBounds(x, y, width, height); // Macht etwas sichtbar
grid[x][y].viewable = true;
}
/**
* Returns the count of a value given a particular {@code Categorical}.
*
* @param key the key to the {@code Categorical} distribution being queried
* @param value the value whose count is being queried
* @return the count of value given the key
*/
public int getCountGiven(K key, V value) {
Guard.argumentsAreNotNull(key, value);
return frequencies.containsKey(key) ? frequencies.get(key).getCount(value) : 0;
}
/**
* Increments the count of a value given a key.
*
* @param key the key of the {@code Categorical} being modified
* @param value the value to increment
*/
public void incrementCount(K key, V value) {
Guard.argumentsAreNotNull(key, value);
totals.incrementCount(value);
getCategorical(key).incrementCount(value);
}
/**
* Returns the sum of all values across a particular {@code Categorical}.
*
* @param key the key of the {@code Categorical} being queried
* @return the sum of all values in the specified {@code Categorical}
*/
public int sumCountGiven(K key) {
Guard.argumentIsNotNull(key);
return getCategorical(key).sumCounts();
}
/**
* Returns true if the tile at the provided (x, y) coordinates is passable.
*
* @param x the x value of the position being queried
* @param y the y value of the position being queried
* @return true if the tile at (x, y)
*/
public boolean passableAt(int x, int y) {
Guard.argumentsInsideBounds(x, y, width, height);
return grid[x][y].passable;
}
/**
* Adds an {@code Actor} to the {@code World} at the specified location.
*
* @param actor the {@code World} being added
* @param coord the location of the {@code Actor}
*/
public final void addActor(Actor actor, Coordinate coord) {
Guard.argumentIsNotNull(coord);
addActor(actor, coord.x(), coord.y());
}
/**
* Returns true if the tile at the provided {@code Coordinate} is passable.
*
* @param coord the value of the position being queried
* @return true if the tile at the given {@code Coordinate}
*/
public final boolean passableAt(Coordinate coord) {
Guard.argumentIsNotNull(coord);
return passableAt(coord.x(), coord.y());
}
/**
* Returns every tile that is visible at a given location, ordered such that the tile with highest
* priority (the tile returned by look) is first, and the lowest priority is last. This last tile
* will be the face of the actual tile itself. Note that any actor which has a null face will not
* be included.
*
* @param pos the location being queried
* @return every tile that is visible at a given location
*/
public final List<ColoredChar> lookAll(Coordinate pos) {
Guard.argumentIsNotNull(pos);
return lookAll(pos.x(), pos.y());
}
/**
* Sets the face and passable value of the tile at the specified {@code Coordinate}.
*
* @param face the new face of the tile
* @param passable the new passable value of the tile
* @param coord the value of the position being updated
*/
public final void setTile(ColoredChar face, boolean passable, Coordinate coord) {
Guard.argumentIsNotNull(coord);
setTile(face, passable, coord.x(), coord.y());
}
/**
* Returns the face that should be drawn for the given location.
*
* @param pos the location being queried
* @return the face that should be drawn for the given location.
*/
public final ColoredChar look(Coordinate pos) {
Guard.argumentIsNotNull(pos);
return look(pos.x(), pos.y());
}
/**
* Gets a randomly chosen open tile on the {@code World} within the given bounds. If after 100
* randomly selected tiles are closed, then each tile will be checked and the first open tile
* found is returned. If the entire {@code World} is closed, null is returned.
*
* @param dice the random number generator used to randomly select tiles
* @param topLeft the bounds upper-left most value
* @param bottomRight the bounds bottom-right most value
* @return a randomly chosen open tile
*/
public final Coordinate getOpenTile(Dice dice, Coordinate topLeft, Coordinate bottomRight) {
Guard.argumentsAreNotNull(topLeft, bottomRight);
return getOpenTile(dice, topLeft.x(), topLeft.y(), bottomRight.x(), bottomRight.y());
}
/**
* Returns the probability of the specified value given a particular {@code Categorical}.
*
* @param key the key of the {@code Categorical} being queried
* @param value the value being queried
* @return the probability of value given the key
*/
public double probabilityGiven(K key, V value) {
Guard.verifyState(totals.sumCounts() > 0);
return sumCountGiven(key) > 0 ? getCategorical(key).probability(value) : 0;
}