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Tile.java
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Tile.java
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public class Tile {
private boolean canMerge;
private boolean hasMoved; //holds whether the tile move the last time the act() method was called
private Board board;
private int power = 0;
private int multiplier;
public int x;
public int y;
public Tile(int multiplier, int power, Board board, int x, int y) {
this.multiplier = multiplier;
this.board = board;
this.power = power;
this.x = x;
this.y = y;
board.setSpace(this,x,y);
}
//This method makes a tile move in a direction until it hits the wall or another tile
public void act(int direction) {
boolean play = true;
canMerge = true;
hasMoved = false;
while(play) {
try {
Tile neighbor = getNeighbor(direction);
try {
merge(neighbor,direction);
play = false;
} catch (NullPointerException e) {
move(direction);
}
} catch (ArrayIndexOutOfBoundsException e) {
play = false;
}
}
}
public Tile getNeighbor(int direction) {
Tile neighbor = null;
switch(direction) {
case 0:
neighbor = board.getSpace(x - 1,y);
break;
case 1:
neighbor = board.getSpace(x + 1,y);
break;
case 2:
neighbor = board.getSpace(x,y - 1);
break;
case 3:
neighbor = board.getSpace(x,y + 1);
break;
}
return neighbor;
}
public void merge(Tile neighbor, int direction) {
int neighborPower = neighbor.getPower();
if(neighborPower == this.power && neighbor.getMerge() && this.canMerge) {
move(direction);
canMerge = false;
power++;
}
//System.out.print(neighborPower + "\n" + board);
}
public void move(int direction) {
//System.out.print("Empty\n" + board);
board.setSpace(null,x,y);
hasMoved = true;
switch(direction) {
case 0:
this.x--;
break;
case 1:
this.x++;
break;
case 2:
this.y--;
break;
case 3:
this.y++;
break;
}
board.setSpace(this,x,y);
}
public int getValue() {
return (int)(Math.pow(2, power - 1) * multiplier);
}
public int getMultiplier() {
return multiplier;
}
public int getPower() {
return power;
}
public boolean getMerge() {
return canMerge;
}
public boolean getMoved() {
return hasMoved;
}
}