package flyweight;

/**
 * Context — stores the UNIQUE (extrinsic) state for each tree instance.
 * This is NOT the flyweight itself; it's the lightweight object that
 * holds position data and delegates rendering to a shared TreeType.
 *
 * 10,000 Tree objects × (x:4 bytes + y:4 bytes + reference:8 bytes) = ~160 KB
 * vs.
 * 10,000 Tree objects × (name + color + texture + x + y) = potentially MBs
 */
public class Tree {

    // Extrinsic (unique) state — different per tree
    private final int x;
    private final int y;

    // Reference to the SHARED flyweight
    private final TreeType type;

    public Tree(int x, int y, TreeType type) {
        this.x    = x;
        this.y    = y;
        this.type = type;
    }

    public void draw() {
        // Passes extrinsic state (position) into the shared flyweight
        type.draw(x, y);
    }
}