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/* $Id$ */

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/** @file functions.h */

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#ifndef FUNCTIONS_H

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#define FUNCTIONS_H

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#include "openttd.h"

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#include "core/random_func.hpp"

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#include "command_type.h"

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#include "tile_cmd.h"

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/* clear_land.cpp */

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void DrawHillyLandTile(const TileInfo *ti);

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void DrawClearLandTile(const TileInfo *ti, byte set);

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void DrawClearLandFence(const TileInfo *ti);

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void TileLoopClearHelper(TileIndex tile);

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/* players.cpp */

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bool CheckPlayerHasMoney(CommandCost cost);

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void SubtractMoneyFromPlayer(CommandCost cost);

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void SubtractMoneyFromPlayerFract(PlayerID player, CommandCost cost);

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bool CheckOwnership(Owner owner);

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bool CheckTileOwnership(TileIndex tile);

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/* misc_cmd.cpp */

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void PlaceTreesRandomly();

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void InitializeLandscapeVariables(bool only_constants);

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/* misc functions */

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/**

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 * Mark a tile given by its coordinate dirty for repaint.

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 *

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 * @ingroup dirty

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 */

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void MarkTileDirty(int x, int y);

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/**

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 * Mark a tile given by its index dirty for repaint.

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 *

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 * @ingroup dirty

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 */

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void MarkTileDirtyByTile(TileIndex tile);

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/**

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 * Mark all viewports dirty for repaint.

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 *

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 * @ingroup dirty

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 */

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void MarkAllViewportsDirty(int left, int top, int right, int bottom);

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void ShowCostOrIncomeAnimation(int x, int y, int z, Money cost);

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void ShowFeederIncomeAnimation(int x, int y, int z, Money cost);

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void ShowHighscoreTable(int difficulty, int8 rank);

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void AskExitGame();

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void AskExitToGameMenu();

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void RedrawAutosave();

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void UpdateViewportSignPos(ViewportSign *sign, int left, int top, StringID str);

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/* callback from drivers that is called if the game size changes dynamically */

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void GameSizeChanged();

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int ttd_main(int argc, char* argv[]);

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void HandleExitGameRequest();

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#endif /* FUNCTIONS_H */