// Layer.hpp : Layer class
//
// 17.11.1998 / DH - Redesign
// 24.11.1998 / DH - Clean-up
// 02.12.1998 / DH - Map dynamically from memory
//
// Copyright (c) 1998 Daniel Hartmeier. All rights reserved.

#ifndef __Layer__
#define __Layer__

class Layer;

#include "Tile.hpp"
#include "Level.hpp"

// -------------------------------------------------------------------

class Layer
  {
    public:
      Layer(Level &level, int distance, int width, int height, const unsigned char *table, const unsigned char *map);
      virtual ~Layer();
      virtual void init(); // Call once before any drawing
      virtual void draw(GsOT *ot);
      virtual int moveHorz(int x); // Return number of pixels moved (may differ from x because of border)
      virtual int moveVert(int y); // Distance is handled internally
      virtual void checkCollision(int x, int y, int &cx, int &cy, unsigned char &attr) const; // Screen pixel coordinates
      virtual void getOrigin(int &x, int &y) const { x = offsetX*16+dx; y = offsetY*16+dy; return; }
      virtual Tile **getTiles() const { return tiles; }
    protected:
      virtual void moveTiles();
    private:
      Level &level;
      const unsigned char *map, *table;
      const int width, height, distance;
      int offsetX, offsetY, dx, dy, restX, restY;
      Tile *tiles[357]; // 21*17 for 320*256 (PAL)
  };

// -------------------------------------------------------------------

#endif