ch.fritteli.maze.generator.serialization.v2.MazeOutputStreamV2 Maven / Gradle / Ivy

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package ch.fritteli.maze.generator.serialization.v2;

import ch.fritteli.maze.generator.model.Maze;
import ch.fritteli.maze.generator.model.Position;
import ch.fritteli.maze.generator.model.Tile;
import ch.fritteli.maze.generator.serialization.AbstractMazeOutputStream;
import ch.fritteli.maze.generator.serialization.CommonTileHandler;
import ch.fritteli.maze.generator.serialization.MazeConstants;
import org.jetbrains.annotations.NotNull;

public class MazeOutputStreamV2 extends AbstractMazeOutputStream {

    @Override
    public void writeHeader() {
        // 00 0x1a magic
        // 01 0xb1 magic
        // 02 0x02 version
        this.writeByte(MazeConstants.MAGIC_BYTE_1);
        this.writeByte(MazeConstants.MAGIC_BYTE_2);
        this.writeByte(SerializerDeserializerV2.VERSION_BYTE);
    }

    @Override
    public void writeMazeData(@NotNull final Maze maze) {
        // 03..06  width (int)
        // 07..10  height (int)
        // 11..14  start-x (int)
        // 15..18  start-y (int)
        // 19..22  end-x (int)
        // 23..26  end-y (int)
        // 27..34  random seed number (long)
        // 35..    tiles
        final long randomSeed = maze.getRandomSeed();
        final int width = maze.getWidth();
        final int height = maze.getHeight();
        final Position start = maze.getStart();
        final Position end = maze.getEnd();
        this.writeInt(width);
        this.writeInt(height);
        this.writeInt(start.x());
        this.writeInt(start.y());
        this.writeInt(end.x());
        this.writeInt(end.y());
        this.writeLong(randomSeed);

        for (int y = 0; y < height; y++) {
            for (int x = 0; x < width; x++) {
                // We .get() it, because we want to crash hard if it is not available.
                final Tile tile = maze.getTileAt(x, y).get();
                final byte bitmask = CommonTileHandler.getBitmaskForTile(tile);
                this.writeByte(bitmask);
            }
        }
    }
}