From 013df98f79866a75f367853c9e436f3c5c79f645 Mon Sep 17 00:00:00 2001
From: rubidium <rubidium@openttd.org>
Date: Tue, 2 Jan 2007 19:19:48 +0000
Subject: (svn r7759) -Merge: makefile rewrite. This merge features:  - A
 proper ./configure, so everything needs to be configured only once, not for
 every make.  - Usage of makedepend when available. This greatly reduces the
 time needed for generating the dependencies.  - A generator for all project
 files. There is a single file with sources, which is used to generate
 Makefiles and the project files for MSVC.  - Proper support for OSX universal
 binaries.  - Object files for non-MSVC compiles are also placed in separate
 directories, making is faster to switch between debug and release compiles
 and it does not touch the directory with the source files.  - Functionality
 to make a bundle of all needed files for for example a nightly or
 distribution of a binary with all needed GRFs and language files.

Note: as this merge moves almost all files, it is recommended to make a backup of your working copy before updating your working copy.
---
 src/bridge_map.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 src/bridge_map.c

(limited to 'src/bridge_map.c')

diff --git a/src/bridge_map.c b/src/bridge_map.c
new file mode 100644
index 000000000..8e2405ea3
--- /dev/null
+++ b/src/bridge_map.c
@@ -0,0 +1,51 @@
+/* $Id$ */
+
+#include "stdafx.h"
+#include "openttd.h"
+#include "bridge_map.h"
+#include "variables.h"
+
+
+TileIndex GetBridgeEnd(TileIndex tile, DiagDirection dir)
+{
+	TileIndexDiff delta = TileOffsByDiagDir(dir);
+
+	dir = ReverseDiagDir(dir);
+	do {
+		tile += delta;
+	} while (!IsBridgeTile(tile) || GetBridgeRampDirection(tile) != dir);
+
+	return tile;
+}
+
+
+TileIndex GetNorthernBridgeEnd(TileIndex t)
+{
+	return GetBridgeEnd(t, ReverseDiagDir(AxisToDiagDir(GetBridgeAxis(t))));
+}
+
+
+TileIndex GetSouthernBridgeEnd(TileIndex t)
+{
+	return GetBridgeEnd(t, AxisToDiagDir(GetBridgeAxis(t)));
+}
+
+
+TileIndex GetOtherBridgeEnd(TileIndex tile)
+{
+	assert(IsBridgeTile(tile));
+	return GetBridgeEnd(tile, GetBridgeRampDirection(tile));
+}
+
+uint GetBridgeHeight(TileIndex t)
+{
+	uint h;
+	uint tileh = GetTileSlope(t, &h);
+	uint f = GetBridgeFoundation(tileh, DiagDirToAxis(GetBridgeRampDirection(t)));
+
+	// one height level extra if the ramp is on a flat foundation
+	return
+		h + TILE_HEIGHT +
+		(IS_INT_INSIDE(f, 1, 15) ? TILE_HEIGHT : 0) +
+		(IsSteepSlope(tileh) ? TILE_HEIGHT : 0);
+}
-- 
cgit v1.2.3-70-g09d2