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/*
* TDDD86 Lab 3a - gusso230 (group 11)
* This file contains the tile list structure.
* You can add, draw, lower, raise and remove tiles.
*/
#ifndef TILELIST_H
#define TILELIST_H
#include <QGraphicsScene>
#include "Tile.h"
class TileList {
public:
TileList(); // allocate an empty tile list
~TileList(); // deallocate the tile list
void addTile(Tile tile); // add a tile to the tile list, possibly reallocating
void drawAll(QGraphicsScene *scene) const; // draw all tiles to `scene`
int indexOfTopTile(int x, int y) const; // return index of top tile at (x, y)
void lower(int x, int y); // move the top tile at (x, y) to the bottom
void raise(int x, int y); // move the bottom tile at (x, y) to the top
void remove(int x, int y); // remove the top tile at (x, y)
void removeAll(int x, int y); // remove all tiles at (x, y)
private:
static const int INITIAL_SIZE = 10; // the initial size
int cur_size = 0; // current size of array
int amount_tiles; // number of active tiles in array
Tile *tiles; // the array
/*
* shiftRight and shiftLeft move a group of tiles either right or left
* in the internal array.
* shiftRight(1, 4):
* 0 1 2 3 4 5
* 0 1 1 2 3 5
* shiftLeft(4, 1):
* 0 1 2 3 4 5
* 0 2 3 4 4 5
* Effectively, `start` is duplicated either to the right for shiftRight
* or to the left for shiftLeft, and `end` is lost.
*/
void shiftRight(int start, int end);
void shiftLeft(int start, int end);
};
#endif // TILELIST_H
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