cpp/openttd-patchpack/source Files · src/signs.h

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belugas

(svn r10622) -Feature: Introduction of the CBID_INDUSTRY_AVAILABLE's handling, in fund industry window.
In order to stay as much consistent with the specs, the fund window will perform (if required) the callback every game-day. TTDPatch performs the same call every second, but after discussions with Csaboka, we agreed that it was not required to be that intensive. So a game-day is plenty enough.

/* $Id$ */

/** @file signs.h */

#ifndef SIGNS_H
#define SIGNS_H

#include "oldpool.h"

struct Sign {
	StringID     str;
	ViewportSign sign;
	int32        x;
	int32        y;
	byte         z;
	PlayerByte   owner; // placed by this player. Anyone can delete them though. OWNER_NONE for gray signs from old games.

	SignID       index;
};

DECLARE_OLD_POOL(Sign, Sign, 2, 16000)

static inline SignID GetMaxSignIndex()
{
	/* TODO - This isn't the real content of the function, but
	 *  with the new pool-system this will be replaced with one that
	 *  _really_ returns the highest index. Now it just returns
	 *  the next safe value we are sure about everything is below.
	 */
	return GetSignPoolSize() - 1;
}

static inline uint GetNumSigns()
{
	return GetSignPoolSize();
}

/**
 * Check if a Sign really exists.
 */
static inline bool IsValidSign(const Sign *si)
{
	return si->str != STR_NULL;
}

static inline bool IsValidSignID(uint index)
{
	return index < GetSignPoolSize() && IsValidSign(GetSign(index));
}

void DestroySign(Sign *si);

static inline void DeleteSign(Sign *si)
{
	DestroySign(si);
	si->str = STR_NULL;
}

#define FOR_ALL_SIGNS_FROM(ss, start) for (ss = GetSign(start); ss != NULL; ss = (ss->index + 1U < GetSignPoolSize()) ? GetSign(ss->index + 1U) : NULL) if (IsValidSign(ss))
#define FOR_ALL_SIGNS(ss) FOR_ALL_SIGNS_FROM(ss, 0)

VARDEF bool _sign_sort_dirty;

void UpdateAllSignVirtCoords();
void PlaceProc_Sign(TileIndex tile);

/* signs_gui.cpp */
void ShowRenameSignWindow(const Sign *si);

void ShowSignList();

#endif /* SIGNS_H */