| author | truebrain |
| Fri, 25 Apr 2008 15:51:12 +0000 | |
| branch | noai |
| changeset 10360 | 3234cb59de55 |
| parent 10339 | ce6cd68d9eb8 |
| child 10361 | 4cdffd48480f |
| permissions | -rw-r--r-- |
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/* $Id$ */ |
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/** @file ai_town.cpp Implementation of AITown. */ |
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#include "ai_town.hpp" |
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#include "ai_map.hpp" |
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#include "../../openttd.h" |
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#include "../../town.h" |
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#include "../../strings_func.h" |
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#include "../../core/alloc_func.hpp" |
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#include "table/strings.h" |
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/* static */ TownID AITown::GetMaxTownID() |
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{
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return ::GetMaxTownIndex(); |
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} |
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/* static */ int32 AITown::GetTownCount() |
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{
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return ::GetNumTowns(); |
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} |
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/* static */ bool AITown::IsValidTown(TownID town_id) |
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{
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return ::IsValidTownID(town_id); |
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} |
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/* static */ char *AITown::GetName(TownID town_id) |
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{
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if (!IsValidTown(town_id)) return NULL; |
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static const int len = 64; |
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char *town_name = MallocT<char>(len); |
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::SetDParam(0, town_id); |
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::GetString(town_name, STR_TOWN, &town_name[len - 1]); |
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return town_name; |
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} |
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/* static */ int32 AITown::GetPopulation(TownID town_id) |
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{
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if (!IsValidTown(town_id)) return -1; |
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const Town *t = ::GetTown(town_id); |
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return t->population; |
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} |
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/* static */ TileIndex AITown::GetLocation(TownID town_id) |
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{
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if (!IsValidTown(town_id)) return INVALID_TILE; |
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const Town *t = ::GetTown(town_id); |
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return t->xy; |
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} |
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/* static */ int32 AITown::GetDistanceManhattanToTile(TownID town_id, TileIndex tile) |
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{
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return AIMap::DistanceManhattan(tile, GetLocation(town_id)); |
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} |
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/* static */ int32 AITown::GetDistanceSquareToTile(TownID town_id, TileIndex tile) |
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{
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return AIMap::DistanceSquare(tile, GetLocation(town_id)); |
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} |
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/* static */ bool AITown::IsWithinTownRadius(TownID town_id, TileIndex tile) |
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{
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const Town *t = ::GetTown(town_id); |
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return ((uint32)GetDistanceSquareToTile(town_id, tile) <= t->squared_town_zone_radius[0]); |
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} |