mirror of https://github.com/OpenTTD/OpenTTD.git
39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
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/* $Id$ */
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/** @file autoreplace_base.h Base class for autoreplaces/autorenews. */
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#ifndef AUTOREPLACE_BASE_H
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#define AUTOREPLACE_BASE_H
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#include "oldpool.h"
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#include "autoreplace_type.h"
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/**
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* Memory pool for engine renew elements. DO NOT USE outside of engine.c. Is
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* placed here so the only exception to this rule, the saveload code, can use
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* it.
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*/
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DECLARE_OLD_POOL(EngineRenew, EngineRenew, 3, 8000)
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/**
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* Struct to store engine replacements. DO NOT USE outside of engine.c. Is
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* placed here so the only exception to this rule, the saveload code, can use
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* it.
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*/
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struct EngineRenew : PoolItem<EngineRenew, EngineRenewID, &_EngineRenew_pool> {
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EngineID from;
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EngineID to;
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EngineRenew *next;
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GroupID group_id;
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EngineRenew(EngineID from = INVALID_ENGINE, EngineID to = INVALID_ENGINE) : from(from), to(to), next(NULL) {}
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~EngineRenew() { this->from = INVALID_ENGINE; }
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inline bool IsValid() const { return this->from != INVALID_ENGINE; }
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};
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#define FOR_ALL_ENGINE_RENEWS_FROM(er, start) for (er = GetEngineRenew(start); er != NULL; er = (er->index + 1U < GetEngineRenewPoolSize()) ? GetEngineRenew(er->index + 1U) : NULL) if (er->IsValid())
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#define FOR_ALL_ENGINE_RENEWS(er) FOR_ALL_ENGINE_RENEWS_FROM(er, 0)
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#endif /* AUTOREPLACE_BASE_H */
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