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/* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file unmovable_cmd.cpp Handling of unmovable tiles. */
#include "stdafx.h"
#include "landscape.h"
#include "command_func.h"
#include "viewport_func.h"
#include "company_base.h"
#include "town.h"
#include "bridge_map.h"
#include "genworld.h"
#include "autoslope.h"
#include "transparency.h"
#include "functions.h"
#include "window_func.h"
#include "vehicle_func.h"
#include "company_gui.h"
#include "cheat_type.h"
#include "landscape_type.h"
#include "unmovable.h"
#include "cargopacket.h"
#include "sprite.h"
#include "core/random_func.hpp"
#include "unmovable_map.h"
#include "table/strings.h"
#include "table/sprites.h"
#include "table/unmovable_land.h"
/* static */ const UnmovableSpec *UnmovableSpec::Get(UnmovableType index)
{
assert(index < UNMOVABLE_MAX);
return &_original_unmovable[index];
}
/* static */ const UnmovableSpec *UnmovableSpec::GetByTile(TileIndex tile)
{
return UnmovableSpec::Get(GetUnmovableType(tile));
}
void BuildUnmovable(UnmovableType type, TileIndex tile, CompanyID owner, uint index)
{
const UnmovableSpec *spec = UnmovableSpec::Get(type);
TileArea ta(tile, GB(spec->size, 0, 4), GB(spec->size, 4, 4));
TILE_AREA_LOOP(t, ta) {
TileIndex offset = t - tile;
MakeUnmovable(t, type, owner, TileY(offset) << 4 | TileX(offset), index);
MarkTileDirtyByTile(t);
}
}
/**
* Increase the animation stage of a whole structure.
* @param northern The northern tile of the structure.
* @pre GetUnmovableOffset(northern) == 0
*/
void IncreaseAnimationStage(TileIndex northern)
{
assert(GetUnmovableOffset(northern) == 0);
const UnmovableSpec *spec = UnmovableSpec::GetByTile(northern);
TileArea ta(northern, GB(spec->size, 0, 4), GB(spec->size, 4, 4));
TILE_AREA_LOOP(t, ta) {
SetUnmovableAnimationStage(t, GetUnmovableAnimationStage(t) + 1);
MarkTileDirtyByTile(t);
}
}
/** We encode the company HQ size in the animation stage. */
#define GetCompanyHQSize GetUnmovableAnimationStage
/** We encode the company HQ size in the animation stage. */
#define IncreaseCompanyHQSize IncreaseAnimationStage
/**
* Destroy a HQ.
* During normal gameplay you can only implicitely destroy a HQ when you are
* rebuilding it. Otherwise, only water can destroy it.
* @param cid Company requesting the destruction of his HQ
* @param flags docommand flags of calling function
* @return cost of the operation
*/
static CommandCost DestroyCompanyHQ(CompanyID cid, DoCommandFlag flags)
{
Company *c = Company::Get(cid);
if (flags & DC_EXEC) {
TileIndex t = c->location_of_HQ;
DoClearSquare(t);
DoClearSquare(t + TileDiffXY(0, 1));
DoClearSquare(t + TileDiffXY(1, 0));
DoClearSquare(t + TileDiffXY(1, 1));
c->location_of_HQ = INVALID_TILE; // reset HQ position
SetWindowDirty(WC_COMPANY, cid);
CargoPacket::InvalidateAllFrom(ST_HEADQUARTERS, cid);
}
/* cost of relocating company is 1% of company value */
return CommandCost(EXPENSES_PROPERTY, CalculateCompanyValue(c) / 100);
}
void UpdateCompanyHQ(Company *c, uint score)
{
byte val;
TileIndex tile = c->location_of_HQ;
if (tile == INVALID_TILE) return;
(val = 0, score < 170) ||
(val++, score < 350) ||
(val++, score < 520) ||
(val++, score < 720) ||
(val++, true);
while (GetCompanyHQSize(tile) < val) {
IncreaseCompanyHQSize(tile);
}
}
extern CommandCost CheckFlatLand(TileArea tile_area, DoCommandFlag flags);
/**
* Build or relocate the HQ. This depends if the HQ is already built or not
* @param tile tile where the HQ will be built or relocated to
* @param flags type of operation
* @param p1 unused
* @param p2 unused
* @param text unused
* @return the cost of this operation or an error
*/
static CommandCost CmdBuildCompanyHQ(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
Company *c = Company::Get(_current_company);
CommandCost cost(EXPENSES_PROPERTY);
cost = CheckFlatLand(TileArea(tile, 2, 2), flags);
if (cost.Failed()) return cost;
if (c->location_of_HQ != INVALID_TILE) { // Moving HQ
cost.AddCost(DestroyCompanyHQ(_current_company, flags));
}
if (flags & DC_EXEC) {
int score = UpdateCompanyRatingAndValue(c, false);
c->location_of_HQ = tile;
BuildUnmovable(UNMOVABLE_HQ, tile, _current_company);
UpdateCompanyHQ(c, score);
SetWindowDirty(WC_COMPANY, c->index);
}
return cost;
}
/**
* Purchase a land area. Actually you only purchase one tile, so
* the name is a bit confusing ;p
* @param tile the tile the company is purchasing
* @param flags for this command type
* @param p1 unused
* @param p2 unused
* @param text unused
* @return the cost of this operation or an error
*/
static CommandCost CmdPurchaseLandArea(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
CommandCost cost(EXPENSES_CONSTRUCTION);
if (IsOwnedLandTile(tile) && IsTileOwner(tile, _current_company)) {
return_cmd_error(STR_ERROR_YOU_ALREADY_OWN_IT);
}
cost = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
if (cost.Failed()) return cost;
if (flags & DC_EXEC) {
BuildUnmovable(UNMOVABLE_OWNED_LAND, tile, _current_company);
MarkTileDirtyByTile(tile);
}
cost.AddCost(UnmovableSpec::Get(UNMOVABLE_OWNED_LAND)->GetBuildCost());
return cost;
}
/**
* Build an unmovable object
* @param tile tile where the object will be located
* @param flags type of operation
* @param p1 the object type to build
* @param p2 unused
* @param text unused
* @return the cost of this operation or an error
*/
CommandCost CmdBuildUnmovable(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
CommandCost cost(EXPENSES_PROPERTY);
UnmovableType type = (UnmovableType)GB(p1, 0, 8);
switch (type) {
case UNMOVABLE_LIGHTHOUSE:
case UNMOVABLE_TRANSMITTER:
if (GetTileSlope(tile, NULL) != SLOPE_FLAT) return_cmd_error(STR_ERROR_FLAT_LAND_REQUIRED);
cost = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
if (cost.Failed()) return cost;
if (_game_mode != GM_EDITOR) return CMD_ERROR;
if (flags & DC_EXEC) {
BuildUnmovable(type, tile);
MarkTileDirtyByTile(tile);
}
break;
case UNMOVABLE_OWNED_LAND:
cost = CmdPurchaseLandArea(tile, flags, 0, 0, NULL);
break;
case UNMOVABLE_HQ: {
cost = CmdBuildCompanyHQ(tile, flags, 0, 0, NULL);
break;
}
case UNMOVABLE_STATUE: // Statues have their own construction due to their town reference.
default: return CMD_ERROR;
}
return cost;
}
static Foundation GetFoundation_Unmovable(TileIndex tile, Slope tileh);
static void DrawTile_Unmovable(TileInfo *ti)
{
UnmovableType type = GetUnmovableType(ti->tile);
if (type != UNMOVABLE_OWNED_LAND) DrawFoundation(ti, GetFoundation_Unmovable(ti->tile, ti->tileh));
const DrawTileSprites *dts = NULL;
Owner to = GetTileOwner(ti->tile);
PaletteID palette = to == OWNER_NONE ? PAL_NONE : COMPANY_SPRITE_COLOUR(to);
if (type == UNMOVABLE_HQ) {
uint8 offset = GetUnmovableOffset(ti->tile);
dts = &_unmovable_hq[GetCompanyHQSize(ti->tile) << 2 | GB(offset, 4, 1) << 1 | GB(offset, 0, 1)];
} else {
dts = &_unmovables[type];
}
DrawGroundSprite(dts->ground.sprite, palette);
if (!IsInvisibilitySet(TO_STRUCTURES)) {
const DrawTileSeqStruct *dtss;
foreach_draw_tile_seq(dtss, dts->seq) {
AddSortableSpriteToDraw(
dtss->image.sprite, palette,
ti->x + dtss->delta_x, ti->y + dtss->delta_y,
dtss->size_x, dtss->size_y,
dtss->size_z, ti->z + dtss->delta_z,
IsTransparencySet(TO_STRUCTURES)
);
}
}
if (type == UNMOVABLE_OWNED_LAND) DrawBridgeMiddle(ti);
}
static uint GetSlopeZ_Unmovable(TileIndex tile, uint x, uint y)
{
if (IsOwnedLand(tile)) {
uint z;
Slope tileh = GetTileSlope(tile, &z);
return z + GetPartialZ(x & 0xF, y & 0xF, tileh);
} else {
return GetTileMaxZ(tile);
}
}
static Foundation GetFoundation_Unmovable(TileIndex tile, Slope tileh)
{
return IsOwnedLand(tile) ? FOUNDATION_NONE : FlatteningFoundation(tileh);
}
static CommandCost ClearTile_Unmovable(TileIndex tile, DoCommandFlag flags)
{
UnmovableType type = GetUnmovableType(tile);
const UnmovableSpec *spec = UnmovableSpec::Get(type);
/* Water can remove everything! */
if (_current_company != OWNER_WATER) {
if (type != UNMOVABLE_OWNED_LAND && flags & DC_AUTO) {
/* No automatic removal by overbuilding stuff. */
return_cmd_error(type == UNMOVABLE_HQ ? STR_ERROR_COMPANY_HEADQUARTERS_IN : STR_ERROR_OBJECT_IN_THE_WAY);
} else if (_game_mode == GM_EDITOR) {
/* No further limitations for the editor. */
} else if (GetTileOwner(tile) == OWNER_NONE) {
/* Owned by nobody, so we can only remove it with brute force! */
if (!_cheats.magic_bulldozer.value) return CMD_ERROR;
} else if (CheckTileOwnership(tile).Failed()) {
/* We don't own it!. */
return_cmd_error(STR_ERROR_OWNED_BY);
} else if (type != UNMOVABLE_OWNED_LAND && !_cheats.magic_bulldozer.value) {
/* In the game editor or with cheats we can remove, otherwise we can't. */
return CMD_ERROR;
}
}
switch (type) {
case UNMOVABLE_HQ:
return DestroyCompanyHQ(GetTileOwner(tile), flags);
case UNMOVABLE_STATUE:
if (flags & DC_EXEC) {
TownID town = GetStatueTownID(tile);
ClrBit(Town::Get(town)->statues, GetTileOwner(tile));
SetWindowDirty(WC_TOWN_AUTHORITY, town);
}
break;
default:
break;
}
if (flags & DC_EXEC) {
DoClearSquare(tile);
}
CommandCost cost(EXPENSES_CONSTRUCTION, spec->GetClearCost());
if (type == UNMOVABLE_OWNED_LAND) cost.MultiplyCost(-1); // They get an income!
return cost;
}
static void AddAcceptedCargo_Unmovable(TileIndex tile, CargoArray &acceptance, uint32 *always_accepted)
{
if (!IsCompanyHQ(tile)) return;
/* HQ accepts passenger and mail; but we have to divide the values
* between 4 tiles it occupies! */
/* HQ level (depends on company performance) in the range 1..5. */
uint level = GetCompanyHQSize(tile) + 1;
/* Top town building generates 10, so to make HQ interesting, the top
* type makes 20. */
acceptance[CT_PASSENGERS] += max(1U, level);
SetBit(*always_accepted, CT_PASSENGERS);
/* Top town building generates 4, HQ can make up to 8. The
* proportion passengers:mail is different because such a huge
* commercial building generates unusually high amount of mail
* correspondence per physical visitor. */
acceptance[CT_MAIL] += max(1U, level / 2);
SetBit(*always_accepted, CT_MAIL);
}
static void GetTileDesc_Unmovable(TileIndex tile, TileDesc *td)
{
td->str = UnmovableSpec::GetByTile(tile)->name;
td->owner[0] = GetTileOwner(tile);
}
static void TileLoop_Unmovable(TileIndex tile)
{
if (!IsCompanyHQ(tile)) return;
/* HQ accepts passenger and mail; but we have to divide the values
* between 4 tiles it occupies! */
/* HQ level (depends on company performance) in the range 1..5. */
uint level = GetCompanyHQSize(tile) + 1;
assert(level < 6);
StationFinder stations(TileArea(tile, 2, 2));
uint r = Random();
/* Top town buildings generate 250, so the top HQ type makes 256. */
if (GB(r, 0, 8) < (256 / 4 / (6 - level))) {
uint amt = GB(r, 0, 8) / 8 / 4 + 1;
if (_economy.fluct <= 0) amt = (amt + 1) >> 1;
MoveGoodsToStation(CT_PASSENGERS, amt, ST_HEADQUARTERS, GetTileOwner(tile), stations.GetStations());
}
/* Top town building generates 90, HQ can make up to 196. The
* proportion passengers:mail is about the same as in the acceptance
* equations. */
if (GB(r, 8, 8) < (196 / 4 / (6 - level))) {
uint amt = GB(r, 8, 8) / 8 / 4 + 1;
if (_economy.fluct <= 0) amt = (amt + 1) >> 1;
MoveGoodsToStation(CT_MAIL, amt, ST_HEADQUARTERS, GetTileOwner(tile), stations.GetStations());
}
}
static TrackStatus GetTileTrackStatus_Unmovable(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
{
return 0;
}
static bool ClickTile_Unmovable(TileIndex tile)
{
if (!IsCompanyHQ(tile)) return false;
ShowCompany(GetTileOwner(tile));
return true;
}
/* checks, if a radio tower is within a 9x9 tile square around tile */
static bool IsRadioTowerNearby(TileIndex tile)
{
TileIndex tile_s = tile - TileDiffXY(min(TileX(tile), 4U), min(TileY(tile), 4U));
uint w = min(TileX(tile), 4U) + 1 + min(MapMaxX() - TileX(tile), 4U);
uint h = min(TileY(tile), 4U) + 1 + min(MapMaxY() - TileY(tile), 4U);
TILE_LOOP(tile, w, h, tile_s) {
if (IsTransmitterTile(tile)) return true;
}
return false;
}
void GenerateUnmovables()
{
if (_settings_game.game_creation.landscape == LT_TOYLAND) return;
/* add radio tower */
int radiotower_to_build = ScaleByMapSize(15); // maximum number of radio towers on the map
int lighthouses_to_build = _settings_game.game_creation.landscape == LT_TROPIC ? 0 : ScaleByMapSize1D((Random() & 3) + 7);
/* Scale the amount of lighthouses with the amount of land at the borders. */
if (_settings_game.construction.freeform_edges && lighthouses_to_build != 0) {
uint num_water_tiles = 0;
for (uint x = 0; x < MapMaxX(); x++) {
if (IsTileType(TileXY(x, 1), MP_WATER)) num_water_tiles++;
if (IsTileType(TileXY(x, MapMaxY() - 1), MP_WATER)) num_water_tiles++;
}
for (uint y = 1; y < MapMaxY() - 1; y++) {
if (IsTileType(TileXY(1, y), MP_WATER)) num_water_tiles++;
if (IsTileType(TileXY(MapMaxX() - 1, y), MP_WATER)) num_water_tiles++;
}
/* The -6 is because the top borders are MP_VOID (-2) and all corners
* are counted twice (-4). */
lighthouses_to_build = lighthouses_to_build * num_water_tiles / (2 * MapMaxY() + 2 * MapMaxX() - 6);
}
SetGeneratingWorldProgress(GWP_UNMOVABLE, radiotower_to_build + lighthouses_to_build);
for (uint i = ScaleByMapSize(1000); i != 0; i--) {
TileIndex tile = RandomTile();
uint h;
if (IsTileType(tile, MP_CLEAR) && GetTileSlope(tile, &h) == SLOPE_FLAT && h >= TILE_HEIGHT * 4 && !IsBridgeAbove(tile)) {
if (IsRadioTowerNearby(tile)) continue;
BuildUnmovable(UNMOVABLE_TRANSMITTER, tile);
IncreaseGeneratingWorldProgress(GWP_UNMOVABLE);
if (--radiotower_to_build == 0) break;
}
}
/* add lighthouses */
uint maxx = MapMaxX();
uint maxy = MapMaxY();
for (int loop_count = 0; loop_count < 1000 && lighthouses_to_build != 0; loop_count++) {
uint r = Random();
/* Scatter the lighthouses more evenly around the perimeter */
int perimeter = (GB(r, 16, 16) % (2 * (maxx + maxy))) - maxy;
DiagDirection dir;
for (dir = DIAGDIR_NE; perimeter > 0; dir++) {
perimeter -= (DiagDirToAxis(dir) == AXIS_X) ? maxx : maxy;
}
TileIndex tile;
switch (dir) {
default:
case DIAGDIR_NE: tile = TileXY(maxx - 1, r % maxy); break;
case DIAGDIR_SE: tile = TileXY(r % maxx, 1); break;
case DIAGDIR_SW: tile = TileXY(1, r % maxy); break;
case DIAGDIR_NW: tile = TileXY(r % maxx, maxy - 1); break;
}
/* Only build lighthouses at tiles where the border is sea. */
if (!IsTileType(tile, MP_WATER)) continue;
for (int j = 0; j < 19; j++) {
uint h;
if (IsTileType(tile, MP_CLEAR) && GetTileSlope(tile, &h) == SLOPE_FLAT && h <= TILE_HEIGHT * 2 && !IsBridgeAbove(tile)) {
BuildUnmovable(UNMOVABLE_LIGHTHOUSE, tile);
IncreaseGeneratingWorldProgress(GWP_UNMOVABLE);
lighthouses_to_build--;
assert(tile < MapSize());
break;
}
tile = AddTileIndexDiffCWrap(tile, TileIndexDiffCByDiagDir(dir));
if (tile == INVALID_TILE) break;
}
}
}
static void ChangeTileOwner_Unmovable(TileIndex tile, Owner old_owner, Owner new_owner)
{
if (!IsTileOwner(tile, old_owner)) return;
if (IsOwnedLand(tile) && new_owner != INVALID_OWNER) {
SetTileOwner(tile, new_owner);
} else if (IsStatueTile(tile)) {
TownID town = GetStatueTownID(tile);
Town *t = Town::Get(town);
ClrBit(t->statues, old_owner);
if (new_owner != INVALID_OWNER && !HasBit(t->statues, new_owner)) {
/* Transfer ownership to the new company */
SetBit(t->statues, new_owner);
SetTileOwner(tile, new_owner);
} else {
DoClearSquare(tile);
}
SetWindowDirty(WC_TOWN_AUTHORITY, town);
} else {
DoClearSquare(tile);
}
}
static CommandCost TerraformTile_Unmovable(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
{
/* Owned land remains unsold */
if (IsOwnedLand(tile)) {
CommandCost ret = CheckTileOwnership(tile);
if (ret.Succeeded()) return CommandCost();
}
if (AutoslopeEnabled() && (IsStatue(tile) || IsCompanyHQ(tile))) {
if (!IsSteepSlope(tileh_new) && (z_new + GetSlopeMaxZ(tileh_new) == GetTileMaxZ(tile))) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
}
return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
}
extern const TileTypeProcs _tile_type_unmovable_procs = {
DrawTile_Unmovable, // draw_tile_proc
GetSlopeZ_Unmovable, // get_slope_z_proc
ClearTile_Unmovable, // clear_tile_proc
AddAcceptedCargo_Unmovable, // add_accepted_cargo_proc
GetTileDesc_Unmovable, // get_tile_desc_proc
GetTileTrackStatus_Unmovable, // get_tile_track_status_proc
ClickTile_Unmovable, // click_tile_proc
NULL, // animate_tile_proc
TileLoop_Unmovable, // tile_loop_clear
ChangeTileOwner_Unmovable, // change_tile_owner_clear
NULL, // add_produced_cargo_proc
NULL, // vehicle_enter_tile_proc
GetFoundation_Unmovable, // get_foundation_proc
TerraformTile_Unmovable, // terraform_tile_proc
};
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