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authorpeter1138 <peter1138@openttd.org>2007-01-17 22:19:12 +0000
committerpeter1138 <peter1138@openttd.org>2007-01-17 22:19:12 +0000
commit323898cb97011ffc67f668cce6cd5a6cf4ea95e8 (patch)
tree9eab53b6dbe16369a223b58b7ce958dfbd68ea94 /src
parent4ff9b8a2a70ac27795721a662b3a5a5949cfe4a1 (diff)
downloadopenttd-323898cb97011ffc67f668cce6cd5a6cf4ea95e8.tar.xz
(svn r8211) -Codechange: (NewGRF) Implement callback 2D, explicit vehicle colour map
selection.
Diffstat (limited to 'src')
-rw-r--r--src/newgrf_callbacks.h4
-rw-r--r--src/vehicle.cpp36
2 files changed, 30 insertions, 10 deletions
diff --git a/src/newgrf_callbacks.h b/src/newgrf_callbacks.h
index 9d0a7a3da..edc2ea6bf 100644
--- a/src/newgrf_callbacks.h
+++ b/src/newgrf_callbacks.h
@@ -48,6 +48,10 @@ enum CallbackID {
/* Called when building a station to customize the tile layout */
CBID_STATION_TILE_LAYOUT = 0x24,
+ /* Called to determine if a specific colour map should be used for a vehicle
+ * instead of the default livery */
+ CBID_VEHICLE_COLOUR_MAPPING = 0x2D,
+
/* Called when the player (or AI) tries to start or stop a vehicle. Mainly
* used for preventing a vehicle from leaving the depot. */
CBID_VEHICLE_START_STOP_CHECK = 0x31,
diff --git a/src/vehicle.cpp b/src/vehicle.cpp
index 07399e101..2ebd1e2b2 100644
--- a/src/vehicle.cpp
+++ b/src/vehicle.cpp
@@ -33,6 +33,7 @@
#include "network/network.h"
#include "yapf/yapf.h"
#include "date.h"
+#include "newgrf_callbacks.h"
#include "newgrf_engine.h"
#include "newgrf_sound.h"
#include "helpers.hpp"
@@ -2813,11 +2814,25 @@ UnitID GetFreeUnitNumber(byte type)
return unit;
}
-static SpriteID GetEngineColourMap(EngineID engine_type, PlayerID player, EngineID parent_engine_type, CargoID cargo_type)
+static SpriteID GetEngineColourMap(EngineID engine_type, PlayerID player, EngineID parent_engine_type, const Vehicle *v)
{
- SpriteID map;
+ SpriteID map = PAL_NONE;
const Player *p = GetPlayer(player);
LiveryScheme scheme = LS_DEFAULT;
+ CargoID cargo_type = v == NULL ? (CargoID)CT_INVALID : v->cargo_type;
+
+ /* Check if we should use the colour map callback */
+ if (HASBIT(EngInfo(engine_type)->callbackmask, CBM_COLOUR_REMAP)) {
+ uint16 callback = GetVehicleCallback(CBID_VEHICLE_COLOUR_MAPPING, 0, 0, engine_type, v);
+ /* A return value of 0xC000 is stated to "use the default two-color
+ * maps" which happens to be the failure action too... */
+ if (callback != CALLBACK_FAILED && callback != 0xC000) {
+ map = GB(callback, 0, 14);
+ /* If bit 14 is set, then the company colours are applied to the
+ * map else it's returned as-is. */
+ if (!HASBIT(callback, 14)) return map;
+ }
+ }
/* The default livery is always available for use, but its in_use flag determines
* whether any _other_ liveries are in use. */
@@ -2894,16 +2909,19 @@ static SpriteID GetEngineColourMap(EngineID engine_type, PlayerID player, Engine
if (!p->livery[scheme].in_use) scheme = LS_DEFAULT;
}
- map = HASBIT(EngInfo(engine_type)->misc_flags, EF_USES_2CC) ?
- (SPR_2CCMAP_BASE + p->livery[scheme].colour1 + p->livery[scheme].colour2 * 16) :
- (PALETTE_RECOLOR_START + p->livery[scheme].colour1);
+ bool twocc = HASBIT(EngInfo(engine_type)->misc_flags, EF_USES_2CC);
+
+ if (map == PAL_NONE) map = twocc ? (SpriteID)SPR_2CCMAP_BASE : (SpriteID)PALETTE_RECOLOR_START;
+
+ map += p->livery[scheme].colour1;
+ if (twocc) map += p->livery[scheme].colour2 * 16;
return map;
}
SpriteID GetEnginePalette(EngineID engine_type, PlayerID player)
{
- return GetEngineColourMap(engine_type, player, INVALID_ENGINE, CT_INVALID);
+ return GetEngineColourMap(engine_type, player, INVALID_ENGINE, NULL);
}
SpriteID GetVehiclePalette(const Vehicle *v)
@@ -2912,12 +2930,10 @@ SpriteID GetVehiclePalette(const Vehicle *v)
return GetEngineColourMap(
(v->u.rail.first_engine != INVALID_ENGINE && (IsArticulatedPart(v) || UsesWagonOverride(v))) ?
v->u.rail.first_engine : v->engine_type,
- v->owner,
- v->u.rail.first_engine,
- v->cargo_type);
+ v->owner, v->u.rail.first_engine, v);
}
- return GetEngineColourMap(v->engine_type, v->owner, INVALID_ENGINE, v->cargo_type);
+ return GetEngineColourMap(v->engine_type, v->owner, INVALID_ENGINE, v);
}
// Save and load of vehicles