Project 2 - Implement the Code for controlling the retraction and extension of Airplane’s landing gear

Retraction and Extension of Airplane’s landing gear

/*
 * Project_2_Airplane.c
 *
 *  Created on: May 31, 2023
 *      Author: hp
 */
#include

void Initiate_State_Machine();
void Gear_Down();
void Checking_Before_Take_Off();
void Raising_Gear();
void Gear_Up();
void Checking_Before_Landing();
void Lowering_Gear();

static void(*statetable[])(void)={Gear_Down,Checking_Before_Take_Off,Raising_Gear, Gear_Up,Checking_Before_Landing,Lowering_Gear};

typedef enum State
{
	GEAR_DOWN,
	CHECKING_BEFORE_TAKE_OFF,
	RAISING_GEAR,
	GEAR_UP,
	CHECKING_BEFORE_LANDING,
	LOWERING_GEAR,
}State_Type;

typedef enum Switch
{
	off,
	on,
}Switch_Status;

typedef enum pilot_lever
{
	Falling,
	Raising,
}Pilot_Lever;

typedef enum hydraulic_mechanism
{
	not_working,
	working,
}Hydraulic_Mechanism;

static volatile Switch_Status squat_switch;
static volatile Switch_Status limit_switch;
static volatile Pilot_Lever pl;
static volatile Hydraulic_Mechanism hm;

State_Type current_state;

typedef struct
{
	char* current_state_indication;
	char* light;
	char* direction_valve_status;
char* landing_gear_hydraulic_control;
	char* Gas_Pressurized_Spring_system_status[2];

}State_Table;

static State_Table State_Machine[6]={{"GearDown","Green","Down","Enabled",{NULL,NULL}},
		{"CheckingBeforeTakeOFF","Green","Down","Enabled",{NULL,NULL}},
		{"RaisingGear","Red","Up","Enabled",{NULL,NULL}},
		{"GearUp","Off","NULL","Disabled",{NULL,NULL}},
		{"CheckBeforeLanding","Red","Down","Enabled",{NULL,NULL}},
		{"LoweringGear","Green","Down","Enabled",{"Disabled","Enabled"}}
};
int main()
{
	Initiate_State_Machine();
	while(1)
	{
		statetable[current_state]();
	}
}
void Gear_Down(void)
{
	current_state=GEAR_DOWN;
	printf("Enter the status of pilot's lever and squat switch");
	fflush(stdout);
	scanf("%d %d",&pl,&squat_switch);
	if(pl==Raising && squat_switch==on)
	{
		current_state=CHECKING_BEFORE_TAKE_OFF;
		printf("current state:%s\n",State_Machine[current_state].current_state_indication);
		printf("Light is :%s\n", State_Machine[current_state].light);
	}
	else
	{
		Gear_Down();
	}
}

//CheckingBeforeTakeOFF
void Checking_Before_Take_Off(void)
{
	current_state=CHECKING_BEFORE_TAKE_OFF;
	printf("Enter the status of pilot's lever and squat switch and hydraulic mechanism:");
	fflush(stdout);
	scanf("%d %d %d",&pl,&squat_switch,&hm);
	if(pl==Falling&&squat_switch==off)
	{
		Gear_Down();
	}
	else if(pl==Raising && squat_switch==on && hm==working)
	{
		current_state=RAISING_GEAR;
		printf("Current State:%s\n",State_Machine[current_state].current_state_indication);
		printf("Light is:%s\n",State_Machine[current_state].light);
		printf("Status of Direction valve:%s\n",State_Machine[current_state].direction_valve_status);
	}
	else if(pl==Raising && squat_switch==on && hm==not_working)
	{
		current_state=RAISING_GEAR;
		printf("Current State:%s\n",State_Machine[current_state].current_state_indication);
		printf("Light is:%s\n",State_Machine[current_state].light);
		printf("Status of Direction valve:%s\n",State_Machine[current_state].direction_valve_status);
		printf("Status of gas pressurised Spring System:%s\n",State_Machine[current_state].Gas_Pressurized_Spring_system_status);
	}
}
//RaisingGear
void Raising_Gear(void)
{
	current_state=RAISING_GEAR;
	printf("Enter the status of pilot's lever and limit switch:");
	fflush(stdout);
	scanf("%d %d",&pl,&limit_switch);
	if(pl==Falling && limit_switch==on)
	{
		current_state=CHECKING_BEFORE_LANDING;
		printf("Current State:%s\n",State_Machine[current_state].current_state_indication);
		printf("Light is:%s\n",State_Machine[current_state].light);
		printf("Landing Gear Hydraulic Control:%s\n",State_Machine[current_state].landing_gear_hydraulic_control);
	}
	else if(pl==Raising && limit_switch==off)
	{
		current_state=GEAR_UP;
		printf("Current State:%s\n",State_Machine[current_state].current_state_indication);
		printf("Light is:%s\n",State_Machine[current_state].light);
		printf("Landing Gear Hydraulic Control:%s\n",State_Machine[current_state].landing_gear_hydraulic_control);
	}
	else
	{
		Raising_Gear();
	}
	}
//GearUp
void Gear_Up(void)
{
	current_state=GEAR_UP;
	printf("Enter the status of pilot's lever:");
	fflush(stdout);
	scanf("%d",&pl);
	if(pl==Falling)
	{
	current_state=CHECKING_BEFORE_LANDING;
	printf("Current State:%s\n",State_Machine[current_state].current_state_indication);
	printf("Light is:%s\n",State_Machine[current_state].light);
	printf("Landing Gear Hydraulic Control:%s\n",State_Machine[current_state].landing_gear_hydraulic_control);
}
	else
	{
		Gear_Up();
	}

}
//CheckBeforeLanding
void Checking_Before_Landing(void)
{
	current_state=CHECKING_BEFORE_LANDING;
	printf("Enter the status of pilot's lever and hydraulic mechanism status:");
	fflush(stdout);
	scanf("%d %d",&pl,&hm);
	if(pl==Falling && hm==working)
	{
		current_state=LOWERING_GEAR;
		printf("Current State:%s\n",State_Machine[current_state].current_state_indication);
		printf("Light is:%s\n",State_Machine[current_state].light);
		printf("Status of Direction valve:%s\n",State_Machine[current_state].direction_valve_status);
	}
	else if(pl==Falling && hm==not_working)
	{
		current_state=LOWERING_GEAR;
		printf("Current State:%s\n",State_Machine[current_state].current_state_indication);
		printf("Light is:%s\n",State_Machine[current_state].light);
		printf("Status of Direction valve:%s\n",State_Machine[current_state].direction_valve_status);
		printf("Status of gas pressurised Spring System:%s\n",State_Machine[current_state].Gas_Pressurized_Spring_system_status);
	}
	else if(pl==(Raising))
	{
		Checking_Before_Landing();
	}
}
//LoweringGear.
void Lowering_Gear(void)
{
	current_state=LOWERING_GEAR;
		printf("Enter the status of pilot's lever and limit switch:");
		fflush(stdout);
		scanf("%d %d",&pl,&limit_switch);
		if(pl==Falling && limit_switch==on)
		{
			current_state=CHECKING_BEFORE_TAKE_OFF;
			printf("Current State:%s\n",State_Machine[current_state].current_state_indication);
			printf("Light is:%s\n",State_Machine[current_state].light);
		}
		else if(pl==Raising && limit_switch==off)
		{
			current_state=GEAR_DOWN;
			printf("Current State:%s\n",State_Machine[current_state].current_state_indication);
			printf("Light is:%s\n",State_Machine[current_state].light);
			printf("Landing Gear Hydraulic Control:%s\n",State_Machine[current_state].landing_gear_hydraulic_control);
		}
		if(limit_switch==off)
		{
			Lowering_Gear();
		}
}
//Initiate_State_Machine
void Initiate_State_Machine()
{
	current_state=GEAR_DOWN;
	printf("Current State: %s\n", State_Machine[current_state].current_state_indication);
	    printf("Light is: %s\n", State_Machine[current_state].light);

}

The Output screenshot is attached below

The .c file is attached as Project_2_Airplane.c