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

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

#include // header files
#include
typedef enum//enum declaration for lever position
{
   down,
   raising,
   up,
   falling
}liverpos;
liverpos a;

typedef enum//enum declaration for limit switch
{
open,
close

}limit;

typedef enum//enum declaration for squat switch
{
    closee,
    openn
}squat;

typedef struct finit //structure declaration for various states of airplane
{
    char *currentstatus;
    char *light;
    char *nextstate;
    char *gearstate;

}state;
//creating the instance as an array
state machine[6]={{"gear down","green","check before takeoff","gear is down"},
                 {"check before takeoff","red","gear raising","gear is down"},
                 {"gear raising","red","gear up","gear is up"},
                 {"gear up","off","checking for landing","gear is up"},
                 {"checking for landing","red","gear lowering","gear is down"},
                 {"gear lowering","green","gear down","gear is down"}};

void geardown()//function definition
{
 int lp,ss,ls;
    printf("enter the lever position        : ");
    scanf("%d",&lp);
    printf("enter the squat switch condition: ");
    scanf("%d",&ss);
    printf("enter the limit switch condition: ");
    scanf("%d",&ls);
    if(lp==down && ss==openn && ls==open) //check the condition for gear down status
    {
        printf("light status is:%s\n",machine[0].light);
        printf("current status :%s\n",machine[0].currentstatus);
        printf("gear status    :%s\n",machine[0].gearstate);
        printf("next state     :%s\n",machine[0].nextstate);
        checkbeforetakeoff(); // if its true it will move on the next state
    }
    else
    {
        geardown();// if its false it will return to the same function
    }
}
void checkbeforetakeoff()//function definition
{
   int lp,ss,ls;
    printf("enter the lever position        : ");
    scanf("%d",&lp);
    printf("enter the squat switch condition: ");
    scanf("%d",&ss);
    printf("enter the limit switch condition: ");
    scanf("%d",&ls);
    if(lp==raising &&ss==openn && ls==open)//check the condition for checkbeforetakeoff
    {
        printf("light status is:%s\n",machine[1].light);
        printf("current status :%s\n",machine[1].currentstatus);
        printf("gear status    :%s\n",machine[1].gearstate);
        printf("next state     :%s\n",machine[1].nextstate);
        gearrising(); // if its true it will move on the next state
    }
    else //if the lever is not raising it will return to the gear down function
    {
        printf("mission failed.....(control inputs are not satisfied so it return to the same function)\n");
        geardown();
    }
}
void gearrising()//function definition
{
   int lp,ss,ls;
    printf("enter the lever position        : ");
    scanf("%d",&lp);
    printf("enter the squat switch condition: ");
    scanf("%d",&ss);
    printf("enter the limit switch condition: ");
    scanf("%d",&ls);
    if(lp==raising &&ss==openn && ls==close)//check the condition for gear raising
    {
        printf("light statu.s is:%s\n",machine[2].light);
        printf("current status :%s\n",machine[2].currentstatus);
        printf("gear status    :%s\n",machine[2].gearstate);
        printf("next state     :%s\n",machine[2].nextstate);
        gearup(); // if its true it will move on the next state
    }
    else if(lp==falling ) //if the lever is not raising it will return to the check before landing function
    {
        printf("gear doesn't work......\n");
        checkbeforelanding();
    }
    else // if the inputs are not satisfied the condition it will return the same function
    {
        gearrising();
     }
}
void gearup()//function definition
{
   int lp,ss,ls;
    printf("enter the lever position        : ");
    scanf("%d",&lp);
    printf("enter the squat switch condition: ");
    scanf("%d",&ss);
    printf("enter the limit switch condition: ");
    scanf("%d",&ls);
    if(lp==up &&ss==openn && ls==close)//check the condition for gearup
    {
        printf("\n light status is:%s\n",machine[3].light);
        printf("current status    :%s\n",machine[3].currentstatus);
        printf("gear status       :%s\n",machine[3].gearstate);
        printf("next state        :%s\n",machine[3].nextstate);
        checkbeforelanding(); // if its true it will move on the next state
    }
    else  // if the inputs are not satisfied the condition it will return the same function
    {
        gearup();
     }
}

void checkbeforelanding()//function definition
{
   int lp,ss,ls;
    printf("enter the lever position        : ");
    scanf("%d",&lp);
    printf("enter the squat switch condition: ");
    scanf("%d",&ss);
    printf("enter the limit switch condition: ");
    scanf("%d",&ls);
    if(lp==falling &&ss==openn && ls==open)//check the condition for checkbeforelanding
    {
        printf("\n light status is:%s\n",machine[4].light);
        printf("current status    :%s\n",machine[4].currentstatus);
        printf("gear status       :%s\n",machine[4].gearstate);
        printf("next state        :%s\n",machine[4].nextstate);
        gearlanding(); // if its true it will move on the next state
     }
    else// if the inputs are not satisfied the condition it will return the same function
    {
        printf("mission failed......(control inputs are not satisfied, it return to the same function)\n");
        gearup();
     }
}
void gearlanding()//function definition
{
   int lp,ss,ls;
    printf("enter the lever position        : ");
    scanf("%d",&lp);
    printf("enter the squat switch condition: ");
    scanf("%d",&ss);
    printf("enter the limit switch condition: ");
    scanf("%d",&ls);
    if(lp==down &&ss==closee && ls==open) //check the condition for gear landing
    {
        printf("\n light status is:%s\n",machine[5].light);
        printf("current status    :%s\n",machine[5].currentstatus);
        printf("gear status       :%s\n",machine[5].gearstate);
        printf("next state        :%s\n",machine[5].nextstate);
        geardown(); // if its true it will move on the next state
     }
    else if(lp==raising) //if the lever is not down it will return to the check before take off
    {
        printf("due to bad weather, pilot proceed to takeoff\n");
        checkbeforetakeoff();
     }
     else // if the inputs are not satisfied the condition it will return the same function
     {
         gearlanding();
     }
}

int main() // main function
{
    printf("lever position states \n0.Down\n1.Raising\n2.Up\n3.Falling\n"); // user defined inputs for the various states
    printf("squat switch states \n0.closee\n1.openn\n");
    printf("limit switch states \n0.open\n1.close\n\n");
 geardown(); // calling the subfunction
}