mirror of https://github.com/OpenRCT2/OpenRCT2.git
implement track_remove_station_element
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parent
c137ac41c0
commit
8268f607cd
158
src/ride/track.c
158
src/ride/track.c
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@ -4230,6 +4230,151 @@ static bool track_add_station_element(int x, int y, int z, int direction, int ri
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return true;
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}
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/**
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*
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* rct2: 0x006C494B
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*/
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static bool track_remove_station_element(int x, int y, int z, int direction, int rideIndex, int flags)
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{
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int removeX = x;
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int removeY = y;
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int stationX0 = x;
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int stationY0 = y;
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int stationX1 = x;
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int stationY1 = y;
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int stationLength = 1;
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int byte_F441D1 = -1;
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rct_ride *ride = get_ride(rideIndex);
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if (ride_type_has_flag(ride->type, RIDE_TYPE_FLAG_3)) {
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rct_map_element *mapElement = map_get_track_element_at_with_direction_from_ride(x, y, z, direction, rideIndex);
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if (mapElement != NULL) {
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if (flags & GAME_COMMAND_FLAG_APPLY) {
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ride_remove_station(ride, x, y, z);
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}
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}
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return true;
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}
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rct_map_element *stationElement;
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// Search backwards for more station
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x = stationX0;
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y = stationY0;
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while ((stationElement = find_station_element(x, y, z, direction, rideIndex)) != NULL) {
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if (stationElement->properties.track.type == TRACK_ELEM_END_STATION) {
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if (flags & GAME_COMMAND_FLAG_APPLY) {
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ride_remove_station(ride, x, y, z);
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}
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}
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stationX0 = x;
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stationY0 = y;
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byte_F441D1++;
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x -= TileDirectionDelta[direction].x;
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y -= TileDirectionDelta[direction].y;
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}
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// Search forwards for more station
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x = stationX1;
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y = stationY1;
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do {
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x += TileDirectionDelta[direction].x;
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y += TileDirectionDelta[direction].y;
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stationElement = find_station_element(x, y, z, direction, rideIndex);
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if (stationElement != NULL) {
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if (stationElement->properties.track.type == TRACK_ELEM_END_STATION) {
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if (flags & GAME_COMMAND_FLAG_APPLY) {
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ride_remove_station(ride, x, y, z);
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}
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}
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stationX1 = x;
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stationY1 = y;
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stationLength++;
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}
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} while (stationElement != NULL);
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if (!(flags & GAME_COMMAND_FLAG_APPLY)) {
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if ((removeX != stationX0 || removeY != stationY0) &&
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(removeX != stationX1 || removeY != stationY1) &&
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ride->num_stations >= 4
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) {
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RCT2_GLOBAL(RCT2_ADDRESS_GAME_COMMAND_ERROR_TEXT, rct_string_id) = STR_NO_MORE_STATIONS_ALLOWED_ON_THIS_RIDE;
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return false;
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} else {
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return true;
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}
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}
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x = stationX1;
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y = stationY1;
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bool finaliseStationDone;
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do {
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finaliseStationDone = true;
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if (x != removeX || y != removeY) {
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stationElement = find_station_element(x, y, z, direction, rideIndex);
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if (stationElement != NULL) {
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int targetTrackType;
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if (x == stationX1 && y == stationY1) {
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loc_6C4BF5:;
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int stationIndex = -1;
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for (int i = 0; i < 4; i++) {
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if (ride->station_starts[i] == 0xFFFF) {
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stationIndex = i;
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break;
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}
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}
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assert(stationIndex != -1);
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uint16 xy = (x >> 5) | ((y >> 5) << 8);
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ride->station_starts[stationIndex] = xy;
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ride->station_heights[stationIndex] = z;
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ride->station_depart[stationIndex] = 1;
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ride->station_length[stationIndex] = stationLength != 0 ? stationLength : byte_F441D1;
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ride->num_stations++;
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stationLength = 0;
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targetTrackType = TRACK_ELEM_END_STATION;
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} else {
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if (x + TileDirectionDelta[direction].x == removeX &&
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y + TileDirectionDelta[direction].y == removeY
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) {
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goto loc_6C4BF5;
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} else {
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if (x - TileDirectionDelta[direction].x == removeX &&
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y - TileDirectionDelta[direction].y == removeY
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) {
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targetTrackType = TRACK_ELEM_BEGIN_STATION;
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} else {
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if (x == stationX0 && y == stationY0) {
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targetTrackType = TRACK_ELEM_BEGIN_STATION;
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} else {
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targetTrackType = TRACK_ELEM_MIDDLE_STATION;
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}
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}
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}
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}
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stationElement->properties.track.type = targetTrackType;
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map_invalidate_element(x, y, stationElement);
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}
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}
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if (x != stationX0 || y != stationY0) {
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x -= TileDirectionDelta[direction].x;
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y -= TileDirectionDelta[direction].y;
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finaliseStationDone = false;
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}
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} while (!finaliseStationDone);
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return true;
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}
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static money32 track_place(int rideIndex, int type, int originX, int originY, int originZ, int direction, int properties_1, int properties_2, int properties_3, int edx_flags, int flags)
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{
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rct_ride *ride = get_ride(rideIndex);
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@ -4752,15 +4897,6 @@ void game_command_place_track(int *eax, int *ebx, int *ecx, int *edx, int *esi,
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);
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}
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/**
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*
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* rct2: 0x006C494B
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*/
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static bool sub_6C494B(int x, int y, int z, int direction, int rideIndex, int flags)
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{
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return !(RCT2_CALLPROC_X(0x006C494B, x, flags | (rideIndex << 8), y, z | (direction << 8), 0, 0, 0) & 0x100);
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}
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money32 track_remove(uint8 type, uint8 sequence, sint16 originX, sint16 originY, sint16 originZ, uint8 rotation, uint8 flags){
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RCT2_GLOBAL(RCT2_ADDRESS_NEXT_EXPENDITURE_TYPE, uint8) = 0;
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RCT2_GLOBAL(RCT2_ADDRESS_COMMAND_MAP_X, sint16) = originX + 16;
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@ -4928,7 +5064,7 @@ money32 track_remove(uint8 type, uint8 sequence, sint16 originX, sint16 originY,
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}
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if (entranceDirections & (1 << 4) && ((mapElement->properties.track.sequence & 0xF) == 0)){
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if (!sub_6C494B(x, y, z / 8, rotation, rideIndex, 0)) {
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if (!track_remove_station_element(x, y, z / 8, rotation, rideIndex, 0)) {
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return MONEY32_UNDEFINED;
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}
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}
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@ -4949,7 +5085,7 @@ money32 track_remove(uint8 type, uint8 sequence, sint16 originX, sint16 originY,
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continue;
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if (entranceDirections & (1 << 4) && ((mapElement->properties.track.sequence & 0xF) == 0)){
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if (!sub_6C494B(x, y, z / 8, rotation, rideIndex, GAME_COMMAND_FLAG_APPLY)) {
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if (!track_remove_station_element(x, y, z / 8, rotation, rideIndex, GAME_COMMAND_FLAG_APPLY)) {
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return MONEY32_UNDEFINED;
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}
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}
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@ -5403,3 +5403,25 @@ rct_map_element *map_get_track_element_at_from_ride(int x, int y, int z, int rid
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return NULL;
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};
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/**
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* Gets the track element at x, y, z that is the given track type and sequence.
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* @param x x units, not tiles.
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* @param y y units, not tiles.
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* @param z Base height.
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* @param direction The direction (0 - 3).
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* @param ride index
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*/
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rct_map_element *map_get_track_element_at_with_direction_from_ride(int x, int y, int z, int direction, int rideIndex)
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{
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rct_map_element *mapElement = map_get_first_element_at(x >> 5, y >> 5);
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do {
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if (map_element_get_type(mapElement) != MAP_ELEMENT_TYPE_TRACK) continue;
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if (mapElement->base_height != z) continue;
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if (mapElement->properties.track.ride_index != rideIndex) continue;
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if (map_element_get_direction(mapElement) != direction) continue;
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return mapElement;
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} while (!map_element_is_last_for_tile(mapElement++));
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return NULL;
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};
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@ -403,5 +403,6 @@ rct_map_element *map_get_track_element_at_of_type(int x, int y, int z, int track
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rct_map_element *map_get_track_element_at_of_type_seq(int x, int y, int z, int trackType, int sequence);
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rct_map_element *map_get_track_element_at_of_type_from_ride(int x, int y, int z, int trackType, int rideIndex);
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rct_map_element *map_get_track_element_at_from_ride(int x, int y, int z, int rideIndex);
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rct_map_element *map_get_track_element_at_with_direction_from_ride(int x, int y, int z, int direction, int rideIndex);
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#endif
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