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(svn r4742) - Newstations: Add callbacks for building and drawing custom stations.

This commit is contained in:
peter1138 2006-05-04 20:00:50 +00:00
parent 27e7fbaaa0
commit 86b5790782
2 changed files with 40 additions and 1 deletions
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11
newgrf_callbacks.h
View File

@ -19,6 +19,14 @@ enum CallbackID {
// only for train vehicles
CBID_TRAIN_VEHICLE_LENGTH = 0x11,
/* Called (if appropriate bit in callback mask is set) to determine if a
* newstation should be made available to build */
CBID_STATION_AVAILABILITY = 0x13,
/* Called (if appropriate bit in callback mask is set) when drawing a tile
* to choose a sprite layout to draw, instead of the standard 0-7 range */
CBID_STATION_SPRITE_LAYOUT = 0x14,
// Refit capacity, the passed vehicle needs to have its ->cargo_type set to
// the cargo we are refitting to, returns the new cargo capacity
CBID_VEHICLE_REFIT_CAPACITY = 0x15,
@ -30,6 +38,9 @@ enum CallbackID {
/* This callback is called from vehicle purchase lists. It returns a value to be
* used as a custom string ID in the 0xD000 range. */
CBID_VEHICLE_ADDITIONAL_TEXT = 0x23,
/* Called when building a station to customize the tile layout */
CBID_STATION_TILE_LAYOUT = 0x24,
};
/**

30
station_cmd.c
View File

@ -29,6 +29,8 @@
#include "train.h"
#include "water_map.h"
#include "industry_map.h"
#include "newgrf_callbacks.h"
#include "newgrf_station.h"
enum {
/* Max stations: 64000 (64 * 1000) */
@ -1049,6 +1051,20 @@ int32 CmdBuildRailroadStation(TileIndex tile_org, uint32 flags, uint32 p1, uint3
specindex = AllocateSpecToStation(statspec, st, flags & DC_EXEC);
if (specindex == -1) return CMD_ERROR;
if (statspec != NULL) {
/* Perform NewStation checks */
/* Check if the station size is permitted */
if (HASBIT(statspec->disallowed_platforms, numtracks - 1) || HASBIT(statspec->disallowed_lengths, plat_len - 1)) {
return CMD_ERROR;
}
/* Check if the station is buildable */
if (HASBIT(statspec->callbackmask, CBM_STATION_AVAIL) && GetStationCallback(CBID_STATION_AVAILABILITY, 0, 0, statspec, NULL, INVALID_TILE) == 0) {
return CMD_ERROR;
}
}
if (flags & DC_EXEC) {
TileIndexDiff tile_delta;
byte *layout_ptr;
@ -1085,6 +1101,11 @@ int32 CmdBuildRailroadStation(TileIndex tile_org, uint32 flags, uint32 p1, uint3
SetCustomStationSpecIndex(tile, specindex);
SetStationTileRandomBits(tile, GB(Random(), 0, 4));
if (statspec != NULL) {
uint16 callback = GetStationCallback(CBID_STATION_TILE_LAYOUT, 0, 0, statspec, st, tile);
if (callback != CALLBACK_FAILED && callback < 8) SetStationGfx(tile, callback);
}
tile += tile_delta;
} while (--w);
SetSignalsOnBothDir(tile_org, track);
@ -1992,8 +2013,15 @@ static void DrawTile_Station(TileInfo *ti)
relocation = GetCustomStationRelocation(statspec, st, ti->tile);
if (HASBIT(statspec->callbackmask, CBM_CUSTOM_LAYOUT)) {
uint16 callback = GetStationCallback(CBID_STATION_SPRITE_LAYOUT, 0, 0, statspec, st, ti->tile);
if (callback != CALLBACK_FAILED) tile = callback + GetRailStationAxis(ti->tile);
}
/* Ensure the chosen tile layout is valid for this custom station */
t = &statspec->renderdata[tile < statspec->tiles ? tile : GetRailStationAxis(ti->tile)];
if (statspec->renderdata != NULL) {
t = &statspec->renderdata[tile < statspec->tiles ? tile : GetRailStationAxis(ti->tile)];
}
}
}