Files @ r28356:5479dee3539c
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Location: cpp/openttd-patchpack/source/src/newgrf_town.cpp - annotation

Patric Stout
Fix: [CI] patch in SHF_COMPRESSED symbol for our Linux Generic binaries (#11651)
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/*
 * 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 newgrf_town.cpp Implementation of the town part of NewGRF houses. */

#include "stdafx.h"
#include "debug.h"
#include "town.h"
#include "newgrf_town.h"
#include "timer/timer_game_tick.h"

#include "safeguards.h"

/* virtual */ uint32_t TownScopeResolver::GetVariable(byte variable, [[maybe_unused]] uint32_t parameter, bool *available) const
{
	switch (variable) {
		/* Larger towns */
		case 0x40:
			if (_settings_game.economy.larger_towns == 0) return 2;
			if (this->t->larger_town) return 1;
			return 0;

		/* Town index */
		case 0x41: return this->t->index;

		/* Get a variable from the persistent storage */
		case 0x7C: {
			/* Check the persistent storage for the GrfID stored in register 100h. */
			uint32_t grfid = GetRegister(0x100);
			if (grfid == 0xFFFFFFFF) {
				if (this->ro.grffile == nullptr) return 0;
				grfid = this->ro.grffile->grfid;
			}

			for (auto &it : this->t->psa_list) {
				if (it->grfid == grfid) return it->GetValue(parameter);
			}

			return 0;
		}

		/* Town properties */
		case 0x80: return this->t->xy.base();
		case 0x81: return GB(this->t->xy.base(), 8, 8);
		case 0x82: return ClampTo<uint16_t>(this->t->cache.population);
		case 0x83: return GB(ClampTo<uint16_t>(this->t->cache.population), 8, 8);
		case 0x8A: return this->t->grow_counter / Ticks::TOWN_GROWTH_TICKS;
		case 0x92: return this->t->flags;  // In original game, 0x92 and 0x93 are really one word. Since flags is a byte, this is to adjust
		case 0x93: return 0;
		case 0x94: return ClampTo<uint16_t>(this->t->cache.squared_town_zone_radius[HZB_TOWN_EDGE]);
		case 0x95: return GB(ClampTo<uint16_t>(this->t->cache.squared_town_zone_radius[HZB_TOWN_EDGE]), 8, 8);
		case 0x96: return ClampTo<uint16_t>(this->t->cache.squared_town_zone_radius[HZB_TOWN_OUTSKIRT]);
		case 0x97: return GB(ClampTo<uint16_t>(this->t->cache.squared_town_zone_radius[HZB_TOWN_OUTSKIRT]), 8, 8);
		case 0x98: return ClampTo<uint16_t>(this->t->cache.squared_town_zone_radius[HZB_TOWN_OUTER_SUBURB]);
		case 0x99: return GB(ClampTo<uint16_t>(this->t->cache.squared_town_zone_radius[HZB_TOWN_OUTER_SUBURB]), 8, 8);
		case 0x9A: return ClampTo<uint16_t>(this->t->cache.squared_town_zone_radius[HZB_TOWN_INNER_SUBURB]);
		case 0x9B: return GB(ClampTo<uint16_t>(this->t->cache.squared_town_zone_radius[HZB_TOWN_INNER_SUBURB]), 8, 8);
		case 0x9C: return ClampTo<uint16_t>(this->t->cache.squared_town_zone_radius[HZB_TOWN_CENTRE]);
		case 0x9D: return GB(ClampTo<uint16_t>(this->t->cache.squared_town_zone_radius[HZB_TOWN_CENTRE]), 8, 8);
		case 0x9E: return this->t->ratings[0];
		case 0x9F: return GB(this->t->ratings[0], 8, 8);
		case 0xA0: return this->t->ratings[1];
		case 0xA1: return GB(this->t->ratings[1], 8, 8);
		case 0xA2: return this->t->ratings[2];
		case 0xA3: return GB(this->t->ratings[2], 8, 8);
		case 0xA4: return this->t->ratings[3];
		case 0xA5: return GB(this->t->ratings[3], 8, 8);
		case 0xA6: return this->t->ratings[4];
		case 0xA7: return GB(this->t->ratings[4], 8, 8);
		case 0xA8: return this->t->ratings[5];
		case 0xA9: return GB(this->t->ratings[5], 8, 8);
		case 0xAA: return this->t->ratings[6];
		case 0xAB: return GB(this->t->ratings[6], 8, 8);
		case 0xAC: return this->t->ratings[7];
		case 0xAD: return GB(this->t->ratings[7], 8, 8);
		case 0xAE: return this->t->have_ratings;
		case 0xB2: return this->t->statues;
		case 0xB6: return ClampTo<uint16_t>(this->t->cache.num_houses);
		case 0xB9: return this->t->growth_rate / Ticks::TOWN_GROWTH_TICKS;
		case 0xBA: return ClampTo<uint16_t>(this->t->supplied[CT_PASSENGERS].new_max);
		case 0xBB: return GB(ClampTo<uint16_t>(this->t->supplied[CT_PASSENGERS].new_max), 8, 8);
		case 0xBC: return ClampTo<uint16_t>(this->t->supplied[CT_MAIL].new_max);
		case 0xBD: return GB(ClampTo<uint16_t>(this->t->supplied[CT_MAIL].new_max), 8, 8);
		case 0xBE: return ClampTo<uint16_t>(this->t->supplied[CT_PASSENGERS].new_act);
		case 0xBF: return GB(ClampTo<uint16_t>(this->t->supplied[CT_PASSENGERS].new_act), 8, 8);
		case 0xC0: return ClampTo<uint16_t>(this->t->supplied[CT_MAIL].new_act);
		case 0xC1: return GB(ClampTo<uint16_t>(this->t->supplied[CT_MAIL].new_act), 8, 8);
		case 0xC2: return ClampTo<uint16_t>(this->t->supplied[CT_PASSENGERS].old_max);
		case 0xC3: return GB(ClampTo<uint16_t>(this->t->supplied[CT_PASSENGERS].old_max), 8, 8);
		case 0xC4: return ClampTo<uint16_t>(this->t->supplied[CT_MAIL].old_max);
		case 0xC5: return GB(ClampTo<uint16_t>(this->t->supplied[CT_MAIL].old_max), 8, 8);
		case 0xC6: return ClampTo<uint16_t>(this->t->supplied[CT_PASSENGERS].old_act);
		case 0xC7: return GB(ClampTo<uint16_t>(this->t->supplied[CT_PASSENGERS].old_act), 8, 8);
		case 0xC8: return ClampTo<uint16_t>(this->t->supplied[CT_MAIL].old_act);
		case 0xC9: return GB(ClampTo<uint16_t>(this->t->supplied[CT_MAIL].old_act), 8, 8);
		case 0xCA: return this->t->GetPercentTransported(CT_PASSENGERS);
		case 0xCB: return this->t->GetPercentTransported(CT_MAIL);
		case 0xCC: return this->t->received[TE_FOOD].new_act;
		case 0xCD: return GB(this->t->received[TE_FOOD].new_act, 8, 8);
		case 0xCE: return this->t->received[TE_WATER].new_act;
		case 0xCF: return GB(this->t->received[TE_WATER].new_act, 8, 8);
		case 0xD0: return this->t->received[TE_FOOD].old_act;
		case 0xD1: return GB(this->t->received[TE_FOOD].old_act, 8, 8);
		case 0xD2: return this->t->received[TE_WATER].old_act;
		case 0xD3: return GB(this->t->received[TE_WATER].old_act, 8, 8);
		case 0xD4: return this->t->road_build_months;
		case 0xD5: return this->t->fund_buildings_months;
	}

	Debug(grf, 1, "Unhandled town variable 0x{:X}", variable);

	*available = false;
	return UINT_MAX;
}

/* virtual */ void TownScopeResolver::StorePSA(uint pos, int32_t value)
{
	if (this->readonly) return;

	assert(this->t != nullptr);
	/* We can't store anything if the caller has no #GRFFile. */
	if (this->ro.grffile == nullptr) return;

	/* Check the persistent storage for the GrfID stored in register 100h. */
	uint32_t grfid = GetRegister(0x100);

	/* A NewGRF can only write in the persistent storage associated to its own GRFID. */
	if (grfid == 0xFFFFFFFF) grfid = this->ro.grffile->grfid;
	if (grfid != this->ro.grffile->grfid) return;

	/* Check if the storage exists. */
	for (auto &it : t->psa_list) {
		if (it->grfid == grfid) {
			it->StoreValue(pos, value);
			return;
		}
	}

	/* Create a new storage. */
	assert(PersistentStorage::CanAllocateItem());
	PersistentStorage *psa = new PersistentStorage(grfid, GSF_FAKE_TOWNS, this->t->xy);
	psa->StoreValue(pos, value);
	t->psa_list.push_back(psa);
}

/**
 * Resolver for a town.
 * @param grffile NewGRF file associated with the town.
 * @param t %Town of the scope.
 * @param readonly Scope may change persistent storage of the town.
 */
TownResolverObject::TownResolverObject(const struct GRFFile *grffile, Town *t, bool readonly)
		: ResolverObject(grffile), town_scope(*this, t, readonly)
{
}