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

code:

/*
 * project.c
 *
 *  Created on: 15-Aug-2022
 *      Author: saura
 */

#include <stdio.h>
void Initiate_State_Machine();
void GearDown();
void CheckingBeforeTakeOFF();
void RaisingGear();
void GearUp();
void CheckBeforeLanding();
void LoweringGear();
static void(*statetable[])(void)={GearDown, CheckingBeforeTakeOFF, RaisingGear, GearUp, CheckBeforeLanding, LoweringGear};
typedef enum State
{
	GEAR_DOWN,
	CHECKING_BEFORE_TAKEOFF,
	RAISING_GEAR,
	GEAR_UP,
	CHECK_BEFORE_LANDING,
	LOWERING_GEAR,
}State_Type;
typedef enum Switch
{
	on,
	off//plane is on groung
}Switch_status;
typedef enum pilot_lever
{
	Raising,
	falling
}pilot_lever;
typedef enum hydraulic_mechanism
{
	working,
	not_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","Disbled",{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 GearDown(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_TAKEOFF;
		printf("current state:%s\n",State_Machine[current_state].current_state_indication);
		printf("Light is :%s\n", State_Machine[current_state].light);
	}
	else
	{
		GearDown();
	}
}

//CheckingBeforeTakeOFF
void CheckingBeforeTakeOFF(void)
{
	current_state=CHECKING_BEFORE_TAKEOFF;
	printf("Enter the status of pilot's lever and squat switch and hydraulic mechanism:");
	fflush(stdout);
	scanf("%d %d",&pl,&squat_switch,&hm);
	if(pl==falling&&squat_switch==off)
	{
		GearDown();
	}
	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 RaisingGear(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=CHECK_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
	{
		RaisingGear();
	}
	}
//GearUp
void GearUp(void)
{
	current_state=GEAR_UP;
	printf("Enter the status of pilot's lever:");
	fflush(stdout);
	scanf("%d",&pl);
	if(pl==falling)
	{
	current_state=CHECK_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
	{
		GearUp();
	}

}
//CheckBeforeLanding
void CheckBeforeLanding(void)
{
	current_state=CHECK_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))
	{
		CheckBeforeLanding();
	}
}
//LoweringGear.
void LoweringGear(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_TAKEOFF;
			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)
		{
			LoweringGear();
		}
}
output:

//Initiate_State_Machine
void Initiate_State_Machine()
{
	current_state==GEAR_DOWN;
	printf("The Finite State Machine is Intialized and current the program is in""GearDown State & Light is:%s\n",State_Machine[current_state].light);
}