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https://github.com/JGRennison/OpenTTD-patches.git
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57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/* $Id$ */
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/** @file signs_base.h Base class for signs. */
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#ifndef SIGNS_BASE_H
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#define SIGNS_BASE_H
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#include "signs_type.h"
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#include "oldpool.h"
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DECLARE_OLD_POOL(Sign, Sign, 2, 16000)
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struct Sign : PoolItem<Sign, SignID, &_Sign_pool> {
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char *name;
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ViewportSign sign;
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int32 x;
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int32 y;
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byte z;
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PlayerByte owner; // placed by this player. Anyone can delete them though. OWNER_NONE for gray signs from old games.
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/**
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* Creates a new sign
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*/
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Sign(PlayerID owner = INVALID_PLAYER);
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/** Destroy the sign */
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~Sign();
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inline bool IsValid() const { return this->owner != INVALID_PLAYER; }
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};
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static inline SignID GetMaxSignIndex()
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{
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/* TODO - This isn't the real content of the function, but
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* with the new pool-system this will be replaced with one that
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* _really_ returns the highest index. Now it just returns
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* the next safe value we are sure about everything is below.
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*/
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return GetSignPoolSize() - 1;
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}
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static inline uint GetNumSigns()
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{
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extern uint _total_signs;
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return _total_signs;
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}
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static inline bool IsValidSignID(uint index)
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{
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return index < GetSignPoolSize() && GetSign(index)->IsValid();
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}
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#define FOR_ALL_SIGNS_FROM(ss, start) for (ss = GetSign(start); ss != NULL; ss = (ss->index + 1U < GetSignPoolSize()) ? GetSign(ss->index + 1U) : NULL) if (ss->IsValid())
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#define FOR_ALL_SIGNS(ss) FOR_ALL_SIGNS_FROM(ss, 0)
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#endif /* SIGNS_BASE_H */
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