File diff r24300:dc74d00736ca → r24301:7ff717a1243f
src/town_cmd.cpp
Show inline comments
 
@@ -46,25 +46,24 @@
 
#include "depot_base.h"
 
#include "object_map.h"
 
#include "object_base.h"
 
#include "ai/ai.hpp"
 
#include "game/game.hpp"
 

	
 
#include "table/strings.h"
 
#include "table/town_land.h"
 

	
 
#include "safeguards.h"
 

	
 
TownID _new_town_id;
 
CargoTypes _town_cargoes_accepted; ///< Bitmap of all cargoes accepted by houses.
 

	
 
/* Initialize the town-pool */
 
TownPool _town_pool("Town");
 
INSTANTIATE_POOL_METHODS(Town)
 

	
 

	
 
TownKdtree _town_kdtree(&Kdtree_TownXYFunc);
 

	
 
void RebuildTownKdtree()
 
{
 
	std::vector<TownID> townids;
 
	for (const Town *town : Town::Iterate()) {
 
@@ -773,103 +772,24 @@ static void GetTileDesc_Town(TileIndex t
 

	
 
static TrackStatus GetTileTrackStatus_Town(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
 
{
 
	/* not used */
 
	return 0;
 
}
 

	
 
static void ChangeTileOwner_Town(TileIndex tile, Owner old_owner, Owner new_owner)
 
{
 
	/* not used */
 
}
 

	
 
/** Update the total cargo acceptance of the whole town.
 
 * @param t The town to update.
 
 */
 
void UpdateTownCargoTotal(Town *t)
 
{
 
	t->cargo_accepted_total = 0;
 

	
 
	const TileArea &area = t->cargo_accepted.GetArea();
 
	TILE_AREA_LOOP(tile, area) {
 
		if (TileX(tile) % AcceptanceMatrix::GRID == 0 && TileY(tile) % AcceptanceMatrix::GRID == 0) {
 
			t->cargo_accepted_total |= t->cargo_accepted[tile];
 
		}
 
	}
 
}
 

	
 
/**
 
 * Update accepted town cargoes around a specific tile.
 
 * @param t The town to update.
 
 * @param start Update the values around this tile.
 
 * @param update_total Set to true if the total cargo acceptance should be updated.
 
 */
 
static void UpdateTownCargoes(Town *t, TileIndex start, bool update_total = true)
 
{
 
	CargoArray accepted, produced;
 
	CargoTypes dummy = 0;
 

	
 
	/* Gather acceptance for all houses in an area around the start tile.
 
	 * The area is composed of the square the tile is in, extended one square in all
 
	 * directions as the coverage area of a single station is bigger than just one square. */
 
	TileArea area = AcceptanceMatrix::GetAreaForTile(start, 1);
 
	TILE_AREA_LOOP(tile, area) {
 
		if (!IsTileType(tile, MP_HOUSE) || GetTownIndex(tile) != t->index) continue;
 

	
 
		AddAcceptedCargo_Town(tile, accepted, &dummy);
 
		AddProducedCargo_Town(tile, produced);
 
	}
 

	
 
	/* Create bitmap of produced and accepted cargoes. */
 
	CargoTypes acc = 0;
 
	for (uint cid = 0; cid < NUM_CARGO; cid++) {
 
		if (accepted[cid] >= 8) SetBit(acc, cid);
 
		if (produced[cid] > 0) SetBit(t->cargo_produced, cid);
 
	}
 
	t->cargo_accepted[start] = acc;
 

	
 
	if (update_total) UpdateTownCargoTotal(t);
 
}
 

	
 
/** Update cargo acceptance for the complete town.
 
 * @param t The town to update.
 
 */
 
void UpdateTownCargoes(Town *t)
 
{
 
	t->cargo_produced = 0;
 

	
 
	const TileArea &area = t->cargo_accepted.GetArea();
 
	if (area.tile == INVALID_TILE) return;
 

	
 
	/* Update acceptance for each grid square. */
 
	TILE_AREA_LOOP(tile, area) {
 
		if (TileX(tile) % AcceptanceMatrix::GRID == 0 && TileY(tile) % AcceptanceMatrix::GRID == 0) {
 
			UpdateTownCargoes(t, tile, false);
 
		}
 
	}
 

	
 
	/* Update the total acceptance. */
 
	UpdateTownCargoTotal(t);
 
}
 

	
 
/** Updates the bitmap of all cargoes accepted by houses. */
 
void UpdateTownCargoBitmap()
 
{
 
	_town_cargoes_accepted = 0;
 

	
 
	for (const Town *town : Town::Iterate()) {
 
		_town_cargoes_accepted |= town->cargo_accepted_total;
 
	}
 
}
 

	
 
static bool GrowTown(Town *t);
 

	
 
static void TownTickHandler(Town *t)
 
{
 
	if (HasBit(t->flags, TOWN_IS_GROWING)) {
 
		int i = (int)t->grow_counter - 1;
 
		if (i < 0) {
 
			if (GrowTown(t)) {
 
				i = t->growth_rate;
 
			} else {
 
				/* If growth failed wait a bit before retrying */
 
				i = min(t->growth_rate, TOWN_GROWTH_TICKS - 1);
 
@@ -2579,25 +2499,24 @@ static bool BuildTownHouse(Town *t, Tile
 
			if (Chance16(1, 7)) construction_stage = GB(r, 0, 2);
 

	
 
			if (construction_stage == TOWN_HOUSE_COMPLETED) {
 
				ChangePopulation(t, hs->population);
 
			} else {
 
				construction_counter = GB(r, 2, 2);
 
			}
 
		}
 

	
 
		MakeTownHouse(tile, t, construction_counter, construction_stage, house, random_bits);
 
		UpdateTownRadius(t);
 
		UpdateTownGrowthRate(t);
 
		UpdateTownCargoes(t, tile);
 

	
 
		return true;
 
	}
 

	
 
	return false;
 
}
 

	
 
/**
 
 * Update data structures when a house is removed
 
 * @param tile  Tile of the house
 
 * @param t     Town owning the house
 
 * @param house House type
 
@@ -2664,27 +2583,24 @@ void ClearTownHouse(Town *t, TileIndex t
 
		ClrBit(t->flags, TOWN_HAS_STADIUM);
 
	}
 

	
 
	/* Do the actual clearing of tiles */
 
	DoClearTownHouseHelper(tile, t, house);
 
	if (hs->building_flags & BUILDING_2_TILES_Y)   DoClearTownHouseHelper(tile + TileDiffXY(0, 1), t, ++house);
 
	if (hs->building_flags & BUILDING_2_TILES_X)   DoClearTownHouseHelper(tile + TileDiffXY(1, 0), t, ++house);
 
	if (hs->building_flags & BUILDING_HAS_4_TILES) DoClearTownHouseHelper(tile + TileDiffXY(1, 1), t, ++house);
 

	
 
	RemoveNearbyStations(t, tile, hs->building_flags);
 

	
 
	UpdateTownRadius(t);
 

	
 
	/* Update cargo acceptance. */
 
	UpdateTownCargoes(t, tile);
 
}
 

	
 
/**
 
 * Rename a town (server-only).
 
 * @param tile unused
 
 * @param flags type of operation
 
 * @param p1 town ID to rename
 
 * @param p2 unused
 
 * @param text the new name or an empty string when resetting to the default
 
 * @return the cost of this operation or an error
 
 */
 
CommandCost CmdRenameTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
 
@@ -3689,28 +3605,26 @@ void TownsMonthlyLoop()
 
{
 
	for (Town *t : Town::Iterate()) {
 
		if (t->road_build_months != 0) t->road_build_months--;
 

	
 
		if (t->exclusive_counter != 0) {
 
			if (--t->exclusive_counter == 0) t->exclusivity = INVALID_COMPANY;
 
		}
 

	
 
		UpdateTownAmounts(t);
 
		UpdateTownGrowth(t);
 
		UpdateTownRating(t);
 
		UpdateTownUnwanted(t);
 
		UpdateTownCargoes(t);
 
	}
 

	
 
	UpdateTownCargoBitmap();
 
}
 

	
 
void TownsYearlyLoop()
 
{
 
	/* Increment house ages */
 
	for (TileIndex t = 0; t < MapSize(); t++) {
 
		if (!IsTileType(t, MP_HOUSE)) continue;
 
		IncrementHouseAge(t);
 
	}
 
}
 

	
 
static CommandCost TerraformTile_Town(TileIndex tile, DoCommandFlag flags, int z_new, Slope tileh_new)