Legend.java

public class Legend {
    // The coordinates for the blocks that form a piece are stored in block[][]
    // x,y positions are stored in the 4 keys.
    int block[][] = new int[4][2];
    // The 3 red, green, blue colors for the piece.
    int color[] = new int[3];

    public Legend(int x0, int y0, int x1, int y1, int x2, int y2, /**/ int c0, int c1, int c2) {
        color[0] = c0;
        color[1] = c1;
        color[2] = c2;

        block[0][0] = 0;
        block[0][1] = 0;

        block[1][0] = x0;
        block[1][1] = y0;

        block[2][0] = x1;
        block[2][1] = y1;

        block[3][0] = x2;
        block[3][1] = y2;
    }

    // Fetch data for the main class
    // the block number, x or y pos, amount rotation (in quarters)
    public int fetch(int i, int a, int rotate) {
        // Too complex to explain. It basically swaps the values and negativity depending
        // if it's the x or y position that is requested
        int a_rot = 1;
        int b_rot = 0;
        int neg_a = 1;
        int neg_b = -1;

        if (a == 1) {
            a_rot = 0;
            b_rot = 1;
            neg_a = -1;
            neg_b = 1;
        }
        // Return the x or y coordinate that corresponds to the amount of rotation
        switch (rotate) {
            case 1:
                return neg_a*block[i][a_rot];
            case 2:
                return neg_a*neg_b*block[i][b_rot];
            case 3:
                return neg_b*block[i][a_rot];
        }
        return block[i][a];
    }

    // Fetch the color. R, G or B.
    public int fetchColor(int i) {
        return color[i];
    }
}