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@ r7882:cdf03a4ac84a
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Location: cpp/openttd-patchpack/source/src/articulated_vehicles.cpp
r7882:cdf03a4ac84a
3.1 KiB
text/x-c
(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.
-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.
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/** @file articulated_vehicles.cpp */
#include "stdafx.h"
#include "openttd.h"
#include "functions.h"
#include "command.h"
#include "vehicle.h"
#include "articulated_vehicles.h"
#include "engine.h"
#include "train.h"
#include "roadveh.h"
#include "newgrf_callbacks.h"
#include "newgrf_engine.h"
uint CountArticulatedParts(EngineID engine_type, bool purchase_window)
{
if (!HASBIT(EngInfo(engine_type)->callbackmask, CBM_VEHICLE_ARTIC_ENGINE)) return 0;
Vehicle *v = NULL;;
if (!purchase_window) {
v = new InvalidVehicle();
v->engine_type = engine_type;
}
uint i;
for (i = 1; i < MAX_UVALUE(EngineID); i++) {
uint16 callback = GetVehicleCallback(CBID_VEHICLE_ARTIC_ENGINE, i, 0, engine_type, v);
if (callback == CALLBACK_FAILED || callback == 0xFF) break;
}
delete v;
return i - 1;
}
void AddArticulatedParts(Vehicle **vl, VehicleType type)
{
const Vehicle *v = vl[0];
Vehicle *u = vl[0];
if (!HASBIT(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_ARTIC_ENGINE)) return;
for (uint i = 1; i < MAX_UVALUE(EngineID); i++) {
uint16 callback = GetVehicleCallback(CBID_VEHICLE_ARTIC_ENGINE, i, 0, v->engine_type, v);
if (callback == CALLBACK_FAILED || callback == 0xFF) return;
/* Attempt to use pre-allocated vehicles until they run out. This can happen
* if the callback returns different values depending on the cargo type. */
u->SetNext(vl[i]);
if (u->Next() == NULL) return;
Vehicle *previous = u;
u = u->Next();
EngineID engine_type = GetFirstEngineOfType(type) + GB(callback, 0, 7);
bool flip_image = HASBIT(callback, 7);
/* get common values from first engine */
u->direction = v->direction;
u->owner = v->owner;
u->tile = v->tile;
u->x_pos = v->x_pos;
u->y_pos = v->y_pos;
u->z_pos = v->z_pos;
u->build_year = v->build_year;
u->vehstatus = v->vehstatus & ~VS_STOPPED;
u->cargo_subtype = 0;
u->max_speed = 0;
u->max_age = 0;
u->engine_type = engine_type;
u->value = 0;
u->subtype = 0;
u->cur_image = 0xAC2;
u->random_bits = VehicleRandomBits();
switch (type) {
default: NOT_REACHED();
case VEH_TRAIN: {
const RailVehicleInfo *rvi_artic = RailVehInfo(engine_type);
u = new (u) Train();
previous->SetNext(u);
u->u.rail.track = v->u.rail.track;
u->u.rail.railtype = v->u.rail.railtype;
u->u.rail.first_engine = v->engine_type;
u->spritenum = rvi_artic->image_index;
u->cargo_type = rvi_artic->cargo_type;
u->cargo_cap = rvi_artic->capacity;
SetArticulatedPart(u);
} break;
case VEH_ROAD: {
const RoadVehicleInfo *rvi_artic = RoadVehInfo(engine_type);
u = new (u) RoadVehicle();
previous->SetNext(u);
u->u.road.first_engine = v->engine_type;
u->u.road.cached_veh_length = GetRoadVehLength(u);
u->u.road.state = RVSB_IN_DEPOT;
u->u.road.roadtype = v->u.road.roadtype;
u->u.road.compatible_roadtypes = v->u.road.compatible_roadtypes;
u->spritenum = rvi_artic->image_index;
u->cargo_type = rvi_artic->cargo_type;
u->cargo_cap = rvi_artic->capacity;
SetRoadVehArticPart(u);
} break;
}
if (flip_image) u->spritenum++;
VehiclePositionChanged(u);
}
}
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