diff options
| author | hackykid <hackykid@openttd.org> | 2005-06-06 22:44:11 +0000 |
|---|---|---|
| committer | hackykid <hackykid@openttd.org> | 2005-06-06 22:44:11 +0000 |
| commit | 6d78b700757fd7765363754195645c6f02cfba55 (patch) | |
| tree | 105b039e5d3807e6c220132364ed2547386be6d7 /rail_cmd.c | |
| parent | 4184611d3a43d046f341858b97c5fb2c1783b58c (diff) | |
| download | openttd-6d78b700757fd7765363754195645c6f02cfba55.tar.xz | |
(svn r2428) - Feature: [newgrf] Implement shorter train vehicles (Therax), and the callback that goes with it.
- Codechange: Remove some magic numbers (PALETTE_CRASH)
Diffstat (limited to 'rail_cmd.c')
| -rw-r--r-- | rail_cmd.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/rail_cmd.c b/rail_cmd.c index 165985776..edc8345b2 100644 --- a/rail_cmd.c +++ b/rail_cmd.c @@ -1,5 +1,6 @@ #include "stdafx.h" #include "openttd.h" +#include "debug.h" #include "table/sprites.h" #include "table/strings.h" #include "gfx.h" @@ -9,6 +10,7 @@ #include "viewport.h" #include "command.h" #include "pathfind.h" +#include "engine.h" #include "town.h" #include "sound.h" #include "station.h" @@ -2036,7 +2038,10 @@ static void ChangeTileOwner_Track(uint tile, byte old_player, byte new_player) static const byte _fractcoords_behind[4] = { 0x8F, 0x8, 0x80, 0xF8 }; static const byte _fractcoords_enter[4] = { 0x8A, 0x48, 0x84, 0xA8 }; -static const byte _fractcoords_leave[4] = { 0x81, 0xD8, 0x8D, 0x18 }; +static const byte _deltacoord_leaveoffset[8] = { + -1, 0, 1, 0, /* x */ + 0, 1, 0, -1 /* y */ +}; static const byte _enter_directions[4] = {5, 7, 1, 3}; static const byte _leave_directions[4] = {1, 3, 5, 7}; static const byte _depot_track_mask[4] = {1, 2, 1, 2}; @@ -2044,7 +2049,9 @@ static const byte _depot_track_mask[4] = {1, 2, 1, 2}; static uint32 VehicleEnter_Track(Vehicle *v, uint tile, int x, int y) { byte fract_coord; + byte fract_coord_leave; int dir; + int length; // this routine applies only to trains in depot tiles if (v->type != VEH_Train || !IsRailDepot(_map5[tile])) @@ -2053,7 +2060,18 @@ static uint32 VehicleEnter_Track(Vehicle *v, uint tile, int x, int y) /* depot direction */ dir = _map5[tile] & RAIL_DEPOT_DIR; + /* calculate the point where the following wagon should be activated */ + /* this depends on the length of the current vehicle */ + length = v->u.rail.cached_veh_length; + + fract_coord_leave = + ((_fractcoords_enter[dir] & 0x0F) + // x + (length + 1) * _deltacoord_leaveoffset[dir]) + + (((_fractcoords_enter[dir] >> 4) + // y + ((length + 1) * _deltacoord_leaveoffset[dir+4])) << 4); + fract_coord = (x & 0xF) + ((y & 0xF) << 4); + if (_fractcoords_behind[dir] == fract_coord) { /* make sure a train is not entering the tile from behind */ return 8; @@ -2069,7 +2087,7 @@ static uint32 VehicleEnter_Track(Vehicle *v, uint tile, int x, int y) InvalidateWindow(WC_VEHICLE_DEPOT, tile); return 4; } - } else if (_fractcoords_leave[dir] == fract_coord) { + } else if (fract_coord_leave == fract_coord) { if (_leave_directions[dir] == v->direction) { /* leave the depot? */ if ((v=v->next) != NULL) { |