Project 2 - Implement the Code for controlling the retraction and extension of Airplane’s landing gear
#include <stdio.h>
#include <stdbool.h>
// Define states
typedef enum {
IDLE,
EXTENDING_GEAR,
RETRACTING_GEAR,
GEAR_EXTENDED,
GEAR_RETRACTED
} State;
// Function prototypes
void extend_gear();
void retract_gear();
bool is_extend_command_received();
bool is_retract_command_received();
bool is_gear_extended();
bool is_gear_retracted();
// Current state of the FSM
State current_state = IDLE;
// Function to handle state transitions
void handle_state_transition() {
switch (current_state) {
case IDLE:
if (is_extend_command_received()) {
current_state = EXTENDING_GEAR;
extend_gear();
} else if (is_retract_command_received()) {
current_state = RETRACTING_GEAR;
retract_gear();
}
break;
case EXTENDING_GEAR:
if (is_gear_extended()) {
current_state = GEAR_EXTENDED;
}
break;
case RETRACTING_GEAR:
if (is_gear_retracted()) {
current_state = GEAR_RETRACTED;
}
break;
case GEAR_EXTENDED:
if (is_retract_command_received()) {
current_state = RETRACTING_GEAR;
retract_gear();
}
break;
case GEAR_RETRACTED:
if (is_extend_command_received()) {
current_state = EXTENDING_GEAR;
extend_gear();
}
break;
}
}
// Function to extend gear
void extend_gear() {
// Code to control the direction valve to extend the gear
printf("Extending gear...\n");
}
// Function to retract gear
void retract_gear() {
// Code to control the direction valve to retract the gear
printf("Retracting gear...\n");
}
// Placeholder function to simulate receiving extend command
bool is_extend_command_received() {
// This should be replaced with actual code to check for an extend command
return false; // Placeholder
}
// Placeholder function to simulate receiving retract command
bool is_retract_command_received() {
// This should be replaced with actual code to check for a retract command
return false; // Placeholder
}
// Placeholder function to simulate checking if gear is fully extended
bool is_gear_extended() {
// This should be replaced with actual code to check if gear is extended
return true; // Placeholder
}
// Placeholder function to simulate checking if gear is fully retracted
bool is_gear_retracted() {
// This should be replaced with actual code to check if gear is retracted
return true; // Placeholder
}
int main() {
// Simulating the FSM in a loop
while (1) {
handle_state_transition();
// Add delay or wait for an event in a real system
}
return 0;
}