// Implementation of the Vehicle class
// CSE143 Spring '01
// Homework 6

#include "vehicle.h"

// Construct a vehicle with uninitialized position and heading
Vehicle::Vehicle() {
}

// Construct a vehicle with same position and heading as <other>õ
Vehicle::Vehicle(const Vehicle& other) {
	pos = other.pos;
	heading = other.heading;
}

// Set position and heading of this vehicle to <other>'s
Vehicle& Vehicle::operator =(const Vehicle& other) {
	pos = other.pos;
	heading = other.heading;
	return *this;
}

// Destructor (empty - no dynamic memory in this class)
Vehicle::~Vehicle() {}

// Draw the vehicle on the screen
void Vehicle::draw(GP142Display& gp) {
	gp.drawRectangle(pos.getX() - 5, pos.getY() - 5, pos.getX() + 5, 
					 pos.getY() + 5, Yellow, 0);
	Position frontRight, frontLeft, frontCtr;
	frontLeft = Position(pos.getX() - 5, pos.getY() + 5);
	frontRight = Position(pos.getX() + 5, pos.getY() + 5);
	frontCtr = Position(pos.getX(), pos.getY() + 10);
	frontLeft.rotate(pos, heading);
	frontRight.rotate(pos, heading);
	frontCtr.rotate(pos, heading);
	gp.drawTriangle(frontLeft.getX(), frontLeft.getY(),
					frontRight.getX(), frontRight.getY(),
					frontCtr.getX(), frontCtr.getY(), Red, 0);
}

// Update vehicle appearance (empty for this class)
void Vehicle::tick() {}

// Advance the specified distance in pixels, in the current direction.
void Vehicle::advance(int distance) {
	pos.move(heading, distance);
}

// Turn the vehicle to face the new direction.
void Vehicle::turn(Direction newHeading) {
	heading = newHeading;
}

// Move the vehicle to the specified position
void Vehicle::setPosition(Position pos) {
	this->pos = pos;
}

// Returns the current position.
Position Vehicle::getPosition() const {
	return pos;
}

// Returns the current heading.
Direction Vehicle::getHeading() const {
	return heading;
}