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annotate src/signs.h @ 7493:2068a51c2e6c draft

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(svn r11004) -Codechange: some reworks of the saveload mechanism to be able to save and load private and protected variables in the vehicle struct.
author rubidium <rubidium@openttd.org>
date Thu, 30 Aug 2007 13:09:44 +0000
parents 571c87eed06c
children 96d510452b4d
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1 /* $Id$ */
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3 /** @file signs.h */
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4
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5 #ifndef SIGNS_H
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6 #define SIGNS_H
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7
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8 #include "oldpool.h"
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10 struct Sign;
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11 DECLARE_OLD_POOL(Sign, Sign, 2, 16000)
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12
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13 struct Sign : PoolItem<Sign, SignID, &_Sign_pool> {
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14 StringID str;
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15 ViewportSign sign;
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16 int32 x;
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17 int32 y;
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18 byte z;
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19 PlayerByte owner; // placed by this player. Anyone can delete them though. OWNER_NONE for gray signs from old games.
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21 /**
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22 * Creates a new sign
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23 */
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24 Sign(StringID string = STR_NULL);
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25
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26 /** Destroy the sign */
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27 ~Sign();
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28
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29 bool IsValid() const { return this->str != STR_NULL; }
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30 };
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31
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32 enum {
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33 INVALID_SIGN = 0xFFFF,
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34 };
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35
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36 extern SignID _new_sign_id;
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39 static inline SignID GetMaxSignIndex()
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40 {
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41 /* TODO - This isn't the real content of the function, but
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42 * with the new pool-system this will be replaced with one that
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43 * _really_ returns the highest index. Now it just returns
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44 * the next safe value we are sure about everything is below.
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45 */
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46 return GetSignPoolSize() - 1;
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47 }
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49 static inline uint GetNumSigns()
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50 {
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51 extern uint _total_signs;
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52 return _total_signs;
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53 }
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55 static inline bool IsValidSignID(uint index)
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56 {
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57 return index < GetSignPoolSize() && GetSign(index)->IsValid();
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58 }
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60 #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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61 #define FOR_ALL_SIGNS(ss) FOR_ALL_SIGNS_FROM(ss, 0)
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62
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63 VARDEF bool _sign_sort_dirty;
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65 void UpdateAllSignVirtCoords();
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66 void PlaceProc_Sign(TileIndex tile);
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67
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68 /* signs_gui.cpp */
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69 void ShowRenameSignWindow(const Sign *si);
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71 void ShowSignList();
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72
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73 #endif /* SIGNS_H */