author | celestar |
Wed, 13 Jun 2007 12:05:56 +0000 | |
branch | gamebalance |
changeset 9912 | 1ac8aac92385 |
permissions | -rw-r--r-- |
9912
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1 |
/* $Id$ */ |
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/** @file articulated_vehicles.cpp */ |
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#include "stdafx.h" |
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#include "openttd.h" |
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#include "functions.h" |
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#include "command.h" |
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9 |
#include "vehicle.h" |
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#include "articulated_vehicles.h" |
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11 |
#include "engine.h" |
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#include "train.h" |
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13 |
#include "roadveh.h" |
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#include "newgrf_callbacks.h" |
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#include "newgrf_engine.h" |
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uint CountArticulatedParts(EngineID engine_type) |
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{ |
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if (!HASBIT(EngInfo(engine_type)->callbackmask, CBM_ARTIC_ENGINE)) return 0; |
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uint i; |
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for (i = 1; i < 10; i++) { |
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uint16 callback = GetVehicleCallback(CBID_TRAIN_ARTIC_ENGINE, i, 0, engine_type, NULL); |
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if (callback == CALLBACK_FAILED || callback == 0xFF) break; |
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} |
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return i - 1; |
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} |
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void AddArticulatedParts(Vehicle **vl, VehicleType type) |
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{ |
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const Vehicle *v = vl[0]; |
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Vehicle *u = vl[0]; |
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if (!HASBIT(EngInfo(v->engine_type)->callbackmask, CBM_ARTIC_ENGINE)) return; |
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for (uint i = 1; i < 10; i++) { |
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uint16 callback = GetVehicleCallback(CBID_TRAIN_ARTIC_ENGINE, i, 0, v->engine_type, v); |
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40 |
if (callback == CALLBACK_FAILED || callback == 0xFF) return; |
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/* Attempt to use pre-allocated vehicles until they run out. This can happen |
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* if the callback returns different values depending on the cargo type. */ |
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u->next = vl[i]; |
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if (u->next == NULL) u->next = AllocateVehicle(); |
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if (u->next == NULL) return; |
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u = u->next; |
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EngineID engine_type = GetFirstEngineOfType(type) + GB(callback, 0, 7); |
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bool flip_image = HASBIT(callback, 7); |
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/* get common values from first engine */ |
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u->direction = v->direction; |
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u->owner = v->owner; |
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u->tile = v->tile; |
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u->x_pos = v->x_pos; |
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u->y_pos = v->y_pos; |
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u->z_pos = v->z_pos; |
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u->build_year = v->build_year; |
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u->vehstatus = v->vehstatus & ~VS_STOPPED; |
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u->cargo_subtype = 0; |
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u->max_speed = 0; |
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u->max_age = 0; |
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u->engine_type = engine_type; |
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u->value = 0; |
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u->subtype = 0; |
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u->cur_image = 0xAC2; |
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u->random_bits = VehicleRandomBits(); |
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switch (type) { |
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default: NOT_REACHED(); |
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|
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case VEH_TRAIN: { |
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const RailVehicleInfo *rvi_artic = RailVehInfo(engine_type); |
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u = new (u) Train(); |
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u->u.rail.track = v->u.rail.track; |
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u->u.rail.railtype = v->u.rail.railtype; |
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u->u.rail.first_engine = v->engine_type; |
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|
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u->spritenum = rvi_artic->image_index; |
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u->cargo_type = rvi_artic->cargo_type; |
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u->cargo_cap = rvi_artic->capacity; |
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|
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SetArticulatedPart(u); |
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} break; |
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|
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90 |
case VEH_ROAD: { |
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const RoadVehicleInfo *rvi_artic = RoadVehInfo(engine_type); |
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92 |
|
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u = new (u) RoadVehicle(); |
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94 |
u->u.road.first_engine = v->engine_type; |
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u->u.road.cached_veh_length = GetRoadVehLength(u); |
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96 |
u->u.road.state = RVSB_IN_DEPOT; |
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97 |
|
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98 |
u->u.road.roadtype = v->u.road.roadtype; |
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99 |
u->u.road.compatible_roadtypes = v->u.road.compatible_roadtypes; |
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100 |
|
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101 |
u->spritenum = rvi_artic->image_index; |
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102 |
u->cargo_type = rvi_artic->cargo_type; |
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103 |
u->cargo_cap = rvi_artic->capacity; |
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104 |
|
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105 |
SetRoadVehArticPart(u); |
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106 |
} break; |
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107 |
} |
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108 |
|
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109 |
if (flip_image) u->spritenum++; |
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110 |
|
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111 |
VehiclePositionChanged(u); |
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112 |
} |
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113 |
} |