/*
 * NWPiece - the northwest corner piece
 *
 * by Adam Doppelt
 * http://www.cs.brown.edu/people/amd/
 */
import java.awt.*;

public class NWPiece extends Piece {
    static PieceType type_;

    static public void SetupStatics(Component c, Image image) {
	type_ = new PieceType(c);
	for (int loop = 0; loop < SLICES; ++loop) {
            double percent = (double)loop / (double)DIV_SLICES;

            if (percent < FIRST_PERCENT) {
                percent = percent / FIRST_PERCENT * FIRST_LINE;
                type_.x1_[loop] = PercentPixel(NEG_EDGE);
                type_.y1_[loop] = PercentPixel(percent);
                type_.x2_[loop] = PercentPixel(POS_EDGE);
                type_.y2_[loop] = PercentPixel(percent);
                type_.visible_[loop] =
                    Math.round(percent * SIZE) < GOOD_PIXELS_A ||
                    Math.round(percent * SIZE) > GOOD_PIXELS_B;
            }
            else if (percent < FIRST_PERCENT + CIRCLE_PERCENT) {
                double angle =
                    (1.0 + ((percent - FIRST_PERCENT) / CIRCLE_PERCENT) *
                     1.5) * Math.PI;
                type_.x1_[loop] = PercentPixel(
                    CENTER + PIPE_WIDTH * (1.0 + 1.5 * Math.cos(angle)));
                type_.y1_[loop] = PercentPixel(
                    CENTER + PIPE_WIDTH * (1.0 - 1.5 * Math.sin(angle)));
                type_.x2_[loop] = PercentPixel(
                    CENTER + PIPE_WIDTH * (1.0 + 0.5 * Math.cos(angle)));
                type_.y2_[loop] = PercentPixel(
                    CENTER + PIPE_WIDTH * (1.0 - 0.5 * Math.sin(angle)));
                type_.visible_[loop] = true;
            }
            else {
                type_.x1_[loop] = type_.y1_[SLICES - loop];
                type_.y1_[loop] = type_.x1_[SLICES - loop];         
                type_.x2_[loop] = type_.y2_[SLICES - loop];
                type_.y2_[loop] = type_.x2_[SLICES - loop];
                type_.visible_[loop] = true;
            }
	}
	type_.red_ = false;
	type_.green_ = true;
	type_.blue_ = false;
	
	type_.legalDirections_ = SOUTH + EAST;
	type_.flipDirections_ = EAST;
	if (image == null)
	    type_.GenerateImage();
	else
	    type_.stamp_ = image;

    }

    public NWPiece() {
	super(type_);
    }

    public int Twist(int direction) {
        if (oldDirection_ == SOUTH)
	    return WEST;
        else
	    return NORTH;
    }
}