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annotate src/bridge.h @ 10123:57aa34285d05 draft

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(svn r14307) -Fix: when deleting a station, remove news items regarding it
author smatz <smatz@openttd.org>
date Sat, 13 Sep 2008 10:19:51 +0000
parents b4caf5c04b2f
children df23c4e04638
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* $Id$ */
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2
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3 /** @file bridge.h Header file for bridges */
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4
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5 #ifndef BRIDGE_H
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6 #define BRIDGE_H
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7
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8 #include "gfx_type.h"
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9 #include "direction_type.h"
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10 #include "tile_cmd.h"
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11
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12 /** This enum is related to the definition of bridge pieces,
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13 * which is used to determine the proper sprite table to use
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14 * while drawing a given bridge part.
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15 */
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16 enum BridgePieces {
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17 BRIDGE_PIECE_NORTH = 0,
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18 BRIDGE_PIECE_SOUTH,
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19 BRIDGE_PIECE_INNER_NORTH,
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20 BRIDGE_PIECE_INNER_SOUTH,
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21 BRIDGE_PIECE_MIDDLE_ODD,
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22 BRIDGE_PIECE_MIDDLE_EVEN,
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23 BRIDGE_PIECE_HEAD,
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24 BRIDGE_PIECE_INVALID,
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25 };
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26
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27 DECLARE_POSTFIX_INCREMENT(BridgePieces);
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28
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29 enum {
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30 MAX_BRIDGES = 13
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31 };
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32
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33 typedef uint BridgeType;
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34
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35 /** Struct containing information about a single bridge type
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36 */
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37 struct BridgeSpec {
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38 Year avail_year; ///< the year where it becomes available
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39 byte min_length; ///< the minimum length (not counting start and end tile)
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40 byte max_length; ///< the maximum length (not counting start and end tile)
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41 uint16 price; ///< the price multiplier
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42 uint16 speed; ///< maximum travel speed
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43 SpriteID sprite; ///< the sprite which is used in the GUI
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44 SpriteID pal; ///< the palette which is used in the GUI
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45 StringID material; ///< the string that contains the bridge description
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46 StringID transport_name[2]; ///< description of the bridge, when built for road or rail
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47 PalSpriteID **sprite_table; ///< table of sprites for drawing the bridge
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48 byte flags; ///< bit 0 set: disable drawing of far pillars.
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49 };
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50
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51 extern BridgeSpec _bridge[MAX_BRIDGES];
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52
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53 Foundation GetBridgeFoundation(Slope tileh, Axis axis);
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54 bool HasBridgeFlatRamp(Slope tileh, Axis axis);
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55
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56 static inline const BridgeSpec *GetBridgeSpec(BridgeType i)
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57 {
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58 assert(i < lengthof(_bridge));
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59 return &_bridge[i];
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60 }
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61
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62 void DrawBridgeMiddle(const TileInfo *ti);
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63
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64 bool CheckBridge_Stuff(BridgeType bridge_type, uint bridge_len, uint32 flags = 0);
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65 int CalcBridgeLenCostFactor(int x);
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66
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67 void ResetBridges();
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68
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69 #endif /* BRIDGE_H */