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use std::fmt;
use super::geometry::Point;
#[derive(Debug, Clone, Copy)]
pub enum Command {
Nothing,
Build(Point, BuildingType),
}
impl fmt::Display for Command {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
Command::Nothing => write!(f, ""),
Command::Build(p, b) => write!(f, "{},{},{}", p.x, p.y, b as u8),
}
}
}
#[repr(u8)]
#[derive(Debug, Clone, Copy)]
pub enum BuildingType {
Defence = 0,
Attack = 1,
Energy = 2,
}
impl BuildingType {
pub fn all() -> [BuildingType; 3] {
use self::BuildingType::*;
[Defence, Attack, Energy]
}
fn count() -> u8 { BuildingType::Energy as u8 + 1 }
pub fn from_u8(id: u8) -> Option<BuildingType> {
use std::mem;
if id < Self::count() { Some(unsafe { mem::transmute(id) }) } else { None }
}
}
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