(svn r13674) -Fix [FS#2127]: crash when drawing a non-real sprite. The drawing of the non-real sprite is caused when two NewGRFs replace the same sprite and the first replaces it with a real sprite (and thus assumes it remains a real sprite) and the second replaces it with a non-real sprite. OpenTTD already looked at whether the sprite to load should be seen as a real or non-real sprite, but it failed to replace non-real sprites with a substitute real sprite when getting the sprite from the cache.
/* $Id$ */
/** @file bridge.h Header file for bridges */
#ifndef BRIDGE_H
#define BRIDGE_H
#include "gfx_type.h"
#include "direction_type.h"
#include "tile_cmd.h"
enum {
MAX_BRIDGES = 13
};
typedef uint BridgeType;
/** Struct containing information about a single bridge type
*/
struct BridgeSpec {
Year avail_year; ///< the year where it becomes available
byte min_length; ///< the minimum length (not counting start and end tile)
byte max_length; ///< the maximum length (not counting start and end tile)
uint16 price; ///< the price multiplier
uint16 speed; ///< maximum travel speed
SpriteID sprite; ///< the sprite which is used in the GUI
SpriteID pal; ///< the palette which is used in the GUI
StringID material; ///< the string that contains the bridge description
StringID transport_name[2]; ///< description of the bridge, when built for road or rail
PalSpriteID **sprite_table; ///< table of sprites for drawing the bridge
byte flags; ///< bit 0 set: disable drawing of far pillars.
};
extern BridgeSpec _bridge[MAX_BRIDGES];
Foundation GetBridgeFoundation(Slope tileh, Axis axis);
bool HasBridgeFlatRamp(Slope tileh, Axis axis);
static inline const BridgeSpec *GetBridgeSpec(BridgeType i)
{
assert(i < lengthof(_bridge));
return &_bridge[i];
}
void DrawBridgeMiddle(const TileInfo *ti);
bool CheckBridge_Stuff(BridgeType bridge_type, uint bridge_len, uint32 flags = 0);
int CalcBridgeLenCostFactor(int x);
void ResetBridges();
#endif /* BRIDGE_H */