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package fr.umlv.java.wallj.board;
import org.jbox2d.common.Vec2;
import java.util.Objects;
/**
* A typed immutable tile coordinate vector containing the coordinates of a Tile in a Board.
*
* @author Pacien TRAN-GIRARD
*/
public final class TileVec2 {
private static final int TILE_DIM = 20;
/**
* @param row the row
* @param col the column
* @return a corresponding tile vector
*/
public static TileVec2 of(int row, int col) {
return new TileVec2(row, col);
}
/**
* @param v a JBox2D Vec2 vector
* @return the coordinates of the tile containing the given point
*/
public static TileVec2 of(Vec2 v) {
return new TileVec2((int) (v.x / TILE_DIM), (int) (v.y / TILE_DIM));
}
private final int row, col;
private TileVec2(int row, int col) {
this.row = row;
this.col = col;
}
/**
* @return the row
*/
public int getRow() {
return row;
}
/**
* @return the column
*/
public int getCol() {
return col;
}
/**
* @return the corresponding JBox2D coordinates of the top-left corner of the tile
*/
public Vec2 toVec2() {
return new Vec2(row * TILE_DIM, col * TILE_DIM);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof TileVec2)) return false;
TileVec2 tileVec2 = (TileVec2) o;
return row == tileVec2.row &&
col == tileVec2.col;
}
@Override
public int hashCode() {
return Objects.hash(row, col);
}
@Override
public String toString() {
return "TileVec2{" +
"row=" + row +
", col=" + col +
'}';
}
}
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