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|
extern crate rand;
use character::rand::Rng;
use constants::Orders;
use location::Location;
#[derive(Clone)]
pub struct Character {
symbol : char,
color : u8,
order : u8,
location : Location,
desired_location : Option<Location>,
path : Option<Vec<Location>>,
}
impl Character {
pub fn new(symbol : char, color : u8, location : Location) -> Character {
Character {
symbol : symbol,
color : color,
order : Orders::Wander as u8,
location : location,
desired_location : None,
path : None,
}
}
pub fn action(&mut self, free_spaces : Vec<(Location,usize)>) {
if self.order == Orders::Wander as u8 {
self.wander(free_spaces);
}
else if self.order == Orders::Move as u8 {
self.move_along_path(free_spaces);
}
}
pub fn up(&mut self) {
self.location.0 -= 1;
}
pub fn down(&mut self) {
self.location.0 += 1;
}
pub fn right(&mut self) {
self.location.1 += 1;
}
pub fn left(&mut self) {
self.location.1 -= 1;
}
pub fn get_symbol(&self) -> char {
self.symbol
}
pub fn get_color(&self) -> u8 {
self.color
}
pub fn get_location(&self) -> Location {
self.location
}
pub fn get_desired_location(&self) -> Option<Location> {
self.desired_location
}
pub fn give_path(&mut self, path : Option<Vec<Location>>) {
match path {
Some(path) => {
self.path = Some(path);
},
None => {
self.path = None;
self.order = Orders::Wander as u8;
},
}
}
pub fn give_destination(&mut self, destination : Location) {
self.desired_location = Some(destination);
self.order = Orders::Move as u8;
}
pub fn needs_path(&self) -> bool {
if self.order == Orders::Wander as u8 {
false
}
else if self.path.is_some() {
false
}
else if self.desired_location.is_some() && self.path.is_none() {
true
}
else {
false
}
}
fn wander(&mut self, free_spaces : Vec<(Location, usize)>) {
let direction = rand::thread_rng().gen_range(0, free_spaces.len());
self.location = free_spaces[direction].0;
}
fn move_along_path(&mut self, free_spaces : Vec<(Location, usize)>) {
let mut moved = false;
match self.path {
None => (),
Some(ref mut calculated_path) => {
if calculated_path.len() > 0 {
let next_location = calculated_path.pop().unwrap();
for free_space in free_spaces {
if next_location == free_space.0 {
self.location = next_location;
moved = true;
}
}
}
else {
self.desired_location = None;
self.order = Orders::Wait as u8;
}
}
}
if !moved {
self.path = None;
}
}
}
|
