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rubidium

(svn r11433) -Fix: starting OpenTTD with DOS files made it look weird out of the box.
-Change: make extra sprites (the ones not in the TTD GRFs) replaceable using Action 5.
-Feature: make replacing contiguous subsets of sprites in for some types possible in Action 5.
Note to GRF authors: when you replaced OpenTTD sprites that are not from the TTD GRF files using Action A, your GRF will not have the intended result anymore as the sprite numbers have changed. You should replace the Action A with an Action 5 from now on.

/* $Id$ */

/** @file bridge.h Header file for bridges */

#ifndef BRIDGE_H
#define BRIDGE_H

enum {
	MAX_BRIDGES = 13
};

/** Struct containing information about a single bridge type
 */
struct Bridge {
	Year avail_year;     ///< the year in which the bridge becomes available
	byte min_length;     ///< the minimum length of the bridge (not counting start and end tile)
	byte max_length;     ///< the maximum length of the bridge (not counting start and end tile)
	uint16 price;        ///< the relative price of the bridge
	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
	PalSpriteID **sprite_table; ///< table of sprites for drawing the bridge
	byte flags;          ///< bit 0 set: disable drawing of far pillars.
};

extern const Bridge orig_bridge[MAX_BRIDGES];
extern Bridge _bridge[MAX_BRIDGES];

Foundation GetBridgeFoundation(Slope tileh, Axis axis);

static inline const Bridge *GetBridge(uint i)
{
	assert(i < lengthof(_bridge));
	return &_bridge[i];
}

void DrawBridgeMiddle(const TileInfo *ti);

#endif /* BRIDGE_H */