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use std::collections::HashMap;
use crate::{
physics::{Collider, Point},
Render,
};
#[derive(Debug, PartialEq, Eq)]
pub struct Building {
pub position: Point,
pub width: u16,
pub height: u16,
render_map: HashMap<Point, char>,
}
impl Building {
pub fn builder() -> BuildingBuilder {
BuildingBuilder::default()
}
}
#[derive(Debug, Default)]
pub struct BuildingBuilder {
position: Option<Point>,
width: Option<u16>,
height: Option<u16>,
}
impl BuildingBuilder {
pub fn new() -> Self {
Self::default()
}
pub fn position<P: Into<Point>>(mut self, position: P) -> BuildingBuilder {
self.position = Some(position.into());
self
}
pub fn width(mut self, width: u16) -> BuildingBuilder {
self.width = Some(width);
self
}
pub fn height(mut self, height: u16) -> BuildingBuilder {
self.height = Some(height);
self
}
pub fn build(self) -> Building {
let position = self.position.unwrap_or_default();
let width = self.width.unwrap_or_default();
let height = self.height.unwrap_or_default();
let mut render_map = HashMap::new();
render_map.insert(position, '┌');
render_map.insert((position.x, height).into(), '└');
render_map.insert((width, position.y).into(), '┐');
render_map.insert((width, height).into(), '┘');
for x in position.x + 1..width {
render_map.insert((x, position.y).into(), '─');
render_map.insert((x, height).into(), '─');
}
for y in position.y + 1..height {
render_map.insert((position.x, y).into(), '│');
render_map.insert((width, y).into(), '│');
}
Building {
position,
width,
height,
render_map,
}
}
}
impl Render for Building {
fn render_map(&self) -> &std::collections::HashMap<crate::physics::Point, char> {
&self.render_map
}
}
impl Collider for Building {
fn collision_map(&self) -> &Vec<Point> {
let collision_map = Vec::new();
for x in self.position.x..self.width {
collision_map.push((x, self.position.y).into());
collision_map.push((x, self.height).into());
}
for y in self.position.y..self.height {
collision_map.push((self.position.x, y).into());
collision_map.push((self.width, y).into());
}
&collision_map
}
}
#[cfg(test)]
mod tests {
use std::collections::HashMap;
use super::*;
use crate::physics::Point;
#[test]
fn building_builder() {
let position = Point { x: 1, y: 1 };
let width = 3u16;
let height = 3u16;
let render_map = HashMap::from([
(position, '┌'),
((position.x, height).into(), '└'),
((width, position.y).into(), '┐'),
((width, height).into(), '┘'),
((position.x + 1, position.y).into(), '─'),
((position.x + 1, height).into(), '─'),
((position.x, position.y + 1).into(), '│'),
((width, position.y + 1).into(), '│'),
]);
let building = Building {
position,
width,
height,
render_map,
};
let building_from_builder = BuildingBuilder::new()
.width(width)
.height(height)
.position(position)
.build();
assert_eq!(building, building_from_builder);
}
}
|
