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Location: cpp/openttd-patchpack/source/src/misc_cmd.cpp - annotation
r26913:e7b3d514fe34
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Revert 92c7551: Line drawing algorithm fix broke other cases (#10497)
This reverts commit 92c755161d6a467d33477bd0041fc720d7d9ba41.
This reverts commit 92c755161d6a467d33477bd0041fc720d7d9ba41.
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r20745:b1ebcc10c74a r20745:b1ebcc10c74a r23674:a5bafa1a02c5 r20745:b1ebcc10c74a r20745:b1ebcc10c74a r24687:4a2fa1e7f559 r24687:4a2fa1e7f559 r24687:4a2fa1e7f559 r24687:4a2fa1e7f559 r20745:b1ebcc10c74a r20745:b1ebcc10c74a r23838:bfeaabaa7b1d r20745:b1ebcc10c74a r20745:b1ebcc10c74a r20745:b1ebcc10c74a | /*
* 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 misc_cmd.cpp Some misc functions that are better fitted in other files, but never got moved there... */
#include "stdafx.h"
#include "command_func.h"
#include "economy_func.h"
#include "window_func.h"
#include "textbuf_gui.h"
#include "network/network.h"
#include "network/network_func.h"
#include "strings_func.h"
#include "company_func.h"
#include "company_gui.h"
#include "company_base.h"
#include "tile_map.h"
#include "texteff.hpp"
#include "core/backup_type.hpp"
#include "misc_cmd.h"
#include "table/strings.h"
#include "safeguards.h"
/**
* Increase the loan of your company.
* @param flags operation to perform
* @param cmd when LoanCommand::Interval: loans LOAN_INTERVAL,
* when LoanCommand::Max: loans the maximum loan permitting money (press CTRL),
* when LoanCommand::Amount: loans the amount specified in \c amount
* @param amount amount to increase the loan with, multitude of LOAN_INTERVAL. Only used when cmd == LoanCommand::Amount.
* @return the cost of this operation or an error
*/
CommandCost CmdIncreaseLoan(DoCommandFlag flags, LoanCommand cmd, Money amount)
{
Company *c = Company::Get(_current_company);
if (c->current_loan >= _economy.max_loan) {
SetDParam(0, _economy.max_loan);
return_cmd_error(STR_ERROR_MAXIMUM_PERMITTED_LOAN);
}
Money loan;
switch (cmd) {
default: return CMD_ERROR; // Invalid method
case LoanCommand::Interval: // Take some extra loan
loan = LOAN_INTERVAL;
break;
case LoanCommand::Max: // Take a loan as big as possible
loan = _economy.max_loan - c->current_loan;
break;
case LoanCommand::Amount: // Take the given amount of loan
loan = amount;
if (loan < LOAN_INTERVAL || c->current_loan + loan > _economy.max_loan || loan % LOAN_INTERVAL != 0) return CMD_ERROR;
break;
}
/* In case adding the loan triggers the overflow protection of Money,
* we would essentially be losing money as taking and repaying the loan
* immediately would not get us back to the same bank balance anymore. */
if (c->money > Money::max() - loan) return CMD_ERROR;
if (flags & DC_EXEC) {
c->money += loan;
c->current_loan += loan;
InvalidateCompanyWindows(c);
}
return CommandCost(EXPENSES_OTHER);
}
/**
* Decrease the loan of your company.
* @param flags operation to perform
* @param cmd when LoanCommand::Interval: pays back LOAN_INTERVAL,
* when LoanCommand::Max: pays back the maximum loan permitting money (press CTRL),
* when LoanCommand::Amount: pays back the amount specified in \c amount
* @param amount amount to decrease the loan with, multitude of LOAN_INTERVAL. Only used when cmd == LoanCommand::Amount.
* @return the cost of this operation or an error
*/
CommandCost CmdDecreaseLoan(DoCommandFlag flags, LoanCommand cmd, Money amount)
{
Company *c = Company::Get(_current_company);
if (c->current_loan == 0) return_cmd_error(STR_ERROR_LOAN_ALREADY_REPAYED);
Money loan;
switch (cmd) {
default: return CMD_ERROR; // Invalid method
case LoanCommand::Interval: // Pay back one step
loan = std::min(c->current_loan, (Money)LOAN_INTERVAL);
break;
case LoanCommand::Max: // Pay back as much as possible
loan = std::max(std::min(c->current_loan, c->money), (Money)LOAN_INTERVAL);
loan -= loan % LOAN_INTERVAL;
break;
case LoanCommand::Amount: // Repay the given amount of loan
loan = amount;
if (loan % LOAN_INTERVAL != 0 || loan < LOAN_INTERVAL || loan > c->current_loan) return CMD_ERROR; // Invalid amount to loan
break;
}
if (c->money < loan) {
SetDParam(0, loan);
return_cmd_error(STR_ERROR_CURRENCY_REQUIRED);
}
if (flags & DC_EXEC) {
c->money -= loan;
c->current_loan -= loan;
InvalidateCompanyWindows(c);
}
return CommandCost();
}
/**
* In case of an unsafe unpause, we want the
* user to confirm that it might crash.
* @param w unused
* @param confirmed whether the user confirmed their action
*/
static void AskUnsafeUnpauseCallback(Window *w, bool confirmed)
{
if (confirmed) {
Command<CMD_PAUSE>::Post(PM_PAUSED_ERROR, false);
}
}
/**
* Pause/Unpause the game (server-only).
* Set or unset a bit in the pause mode. If pause mode is zero the game is
* unpaused. A bitset is used instead of a boolean value/counter to have
* more control over the game when saving/loading, etc.
* @param flags operation to perform
* @param mode the pause mode to change
* @param pause true pauses, false unpauses this mode
* @return the cost of this operation or an error
*/
CommandCost CmdPause(DoCommandFlag flags, PauseMode mode, bool pause)
{
switch (mode) {
case PM_PAUSED_SAVELOAD:
case PM_PAUSED_ERROR:
case PM_PAUSED_NORMAL:
case PM_PAUSED_GAME_SCRIPT:
case PM_PAUSED_LINK_GRAPH:
break;
case PM_PAUSED_JOIN:
case PM_PAUSED_ACTIVE_CLIENTS:
if (!_networking) return CMD_ERROR;
break;
default: return CMD_ERROR;
}
if (flags & DC_EXEC) {
if (mode == PM_PAUSED_NORMAL && _pause_mode & PM_PAUSED_ERROR) {
ShowQuery(
STR_NEWGRF_UNPAUSE_WARNING_TITLE,
STR_NEWGRF_UNPAUSE_WARNING,
nullptr,
AskUnsafeUnpauseCallback
);
} else {
PauseMode prev_mode = _pause_mode;
if (pause) {
_pause_mode |= mode;
} else {
_pause_mode &= ~mode;
}
NetworkHandlePauseChange(prev_mode, mode);
}
SetWindowDirty(WC_STATUS_BAR, 0);
SetWindowDirty(WC_MAIN_TOOLBAR, 0);
}
return CommandCost();
}
/**
* Change the financial flow of your company.
* @param flags operation to perform
* @param amount the amount of money to receive (if positive), or spend (if negative)
* @return the cost of this operation or an error
*/
CommandCost CmdMoneyCheat(DoCommandFlag flags, Money amount)
{
return CommandCost(EXPENSES_OTHER, -amount);
}
/**
* Change the bank bank balance of a company by inserting or removing money without affecting the loan.
* @param flags operation to perform
* @param tile tile to show text effect on (if not 0)
* @param delta the amount of money to receive (if positive), or spend (if negative)
* @param company the company ID.
* @param expenses_type the expenses type which should register the cost/income @see ExpensesType.
* @return zero cost or an error
*/
CommandCost CmdChangeBankBalance(DoCommandFlag flags, TileIndex tile, Money delta, CompanyID company, ExpensesType expenses_type)
{
if (!Company::IsValidID(company)) return CMD_ERROR;
if (expenses_type >= EXPENSES_END) return CMD_ERROR;
if (_current_company != OWNER_DEITY) return CMD_ERROR;
if (flags & DC_EXEC) {
/* Change company bank balance of company. */
Backup<CompanyID> cur_company(_current_company, company, FILE_LINE);
SubtractMoneyFromCompany(CommandCost(expenses_type, -delta));
cur_company.Restore();
if (tile != 0) {
ShowCostOrIncomeAnimation(TileX(tile) * TILE_SIZE, TileY(tile) * TILE_SIZE, GetTilePixelZ(tile), -delta);
}
}
/* This command doesn't cost anything for deity. */
CommandCost zero_cost(expenses_type, 0);
return zero_cost;
}
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