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DOOR.CPP
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/*
** Command & Conquer(tm)
** Copyright 2025 Electronic Arts Inc.
**
** This program 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, either version 3 of the License, or
** (at your option) any later version.
**
** This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* $Header: F:\projects\c&c\vcs\code\door.cpv 1.4 16 Oct 1995 16:49:16 JOE_BOSTIC $ */
/***********************************************************************************************
*** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S ***
***********************************************************************************************
* *
* Project Name : Command & Conquer *
* *
* File Name : DOOR.CPP *
* *
* Programmer : Joe L. Bostic *
* *
* Start Date : 06/11/95 *
* *
* Last Update : June 14, 1995 [JLB] *
* *
*---------------------------------------------------------------------------------------------*
* Functions: *
* DoorClass::AI -- Handles the door processing logic. *
* DoorClass::Close_Door -- Try to close the unit's door. *
* DoorClass::DoorClass -- Constructor for the DoorClass object. *
* DoorClass::Door_Stage -- Fetches the current door animation frame. *
* DoorClass::Open_Door -- Opens the door for this unit. *
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
#include "function.h"
/***********************************************************************************************
* DoorClass::DoorClass -- Constructor for the DoorClass object. *
* *
* This constructor sets the door to an initial closed state. *
* *
* INPUT: none *
* *
* OUTPUT: none *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 06/14/1995 JLB : Created. *
*=============================================================================================*/
DoorClass::DoorClass(void)
{
State = IS_CLOSED;
IsToRedraw = false;
Stages = 0;
}
/***********************************************************************************************
* DoorClass::AI -- Handles the door processing logic. *
* *
* This routine should be called every game frame. It handles the door closing and opening *
* logic. *
* *
* INPUT: none *
* *
* OUTPUT: none *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 06/13/1995 JLB : Created. *
*=============================================================================================*/
void DoorClass::AI(void)
{
if (Control.Graphic_Logic()) {
if (Control.Fetch_Stage() >= Stages) {
Control.Set_Rate(0);
switch (State) {
case IS_OPENING:
State = IS_OPEN;
break;
case IS_CLOSING:
State = IS_CLOSED;
break;
}
}
IsToRedraw = true;
}
}
/***********************************************************************************************
* DoorClass::Open_Door -- Opens the door for this unit. *
* *
* This routine will perform the door open operation for this unit. It will control vehicle *
* rotation if necessary. *
* *
* INPUT: rate -- The animation rate (delay) to use for the door animation logic. *
* *
* stages -- The number of animations stages that this door must pass through. *
* *
* OUTPUT: Was action initiated to open the door? *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 05/08/1995 JLB : Created. *
*=============================================================================================*/
bool DoorClass::Open_Door(int rate, int stages)
{
switch (State) {
case IS_CLOSED:
case IS_CLOSING:
State = IS_OPENING;
Stages = stages-1;
Control.Set_Stage(0);
Control.Set_Rate(rate);
return(true);
}
return(false);
}
/***********************************************************************************************
* DoorClass::Close_Door -- Try to close the unit's door. *
* *
* This routine will attempt to close the unit's door. If the door is already closed or *
* in the process of closing, then no action is performed. *
* *
* INPUT: rate -- The animation rate (delay) to use for the door animation logic. *
* *
* stages -- The number of animations stages that this door must pass through. *
* *
* OUTPUT: Action was initiated to close the door? *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 05/08/1995 JLB : Created. *
*=============================================================================================*/
bool DoorClass::Close_Door(int rate, int stages)
{
switch (State) {
case IS_OPEN:
case IS_OPENING:
State = IS_CLOSING;
Stages = stages-1;
Control.Set_Stage(0);
Control.Set_Rate(rate);
return(true);
}
return(false);
}
/***********************************************************************************************
* DoorClass::Door_Stage -- Fetches the current door animation frame. *
* *
* Use this routine to fetch the current door animation frame number. Frame zero is the *
* closed frame and frame 'N' is the open frame. If the door is in the process of opening *
* or closing, the appropriate frame number is used. 'N' is defined as the number of *
* stages in the animation minus 1 (e.g., a four frame animation will return a door stage *
* number between 0 and 3, inclusive). *
* *
* INPUT: none *
* *
* OUTPUT: Returns with the door animation frame number. *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 06/14/1995 JLB : Created. *
*=============================================================================================*/
int DoorClass::Door_Stage(void) const
{
switch (State) {
case IS_CLOSING:
return((Stages-1) - Control.Fetch_Stage());
case IS_CLOSED:
return(0);
case IS_OPENING:
return(Control.Fetch_Stage());
case IS_OPEN:
return(Stages-1);
}
return(0);
}