1a60924abd
- Command API to introduce easier usability, better performance, and more control over to which buffer to write, and when to flush the buffer to the terminal.
70 lines
2.0 KiB
Rust
70 lines
2.0 KiB
Rust
use super::variables::{Position, Size};
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use crossterm::{cursor, queue, Colorize, Command, Goto, PrintStyledFont, TerminalCursor};
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use rand::distributions::{IndependentSample, Range};
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use std::collections::HashMap;
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use std::io::{stdout, Write};
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use rand;
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pub struct Map {
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pub size: Size,
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pub foot_pos: Position,
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}
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impl Map {
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pub fn new(size: Size) -> Self {
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Map {
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size: size,
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foot_pos: Position::new(0, 0),
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}
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}
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// render the map on the screen.
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pub fn render_map(&mut self, free_positions: &mut HashMap<String, Position>) {
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for y in 0..self.size.height {
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for x in 0..self.size.height {
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if (y == 0 || y == self.size.height - 1) || (x == 0 || x == self.size.width - 1) {
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queue!(
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stdout(),
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Goto(x as u16, y as u16),
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PrintStyledFont("█".magenta())
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);
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} else {
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free_positions.insert(format!("{},{}", x, y), Position::new(x, y));
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}
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}
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}
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}
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pub fn is_out_of_bounds(&self, new_pos: Position) -> bool {
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if (new_pos.x == 0 || new_pos.x == self.size.width)
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|| (new_pos.y == 0 || new_pos.y == self.size.height)
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{
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return true;
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}
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return false;
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}
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pub fn is_food_eaten(&self, snake_head: Position) -> bool {
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snake_head.x == self.foot_pos.x && snake_head.y == self.foot_pos.y
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}
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pub fn spawn_food(&mut self, free_positions: &HashMap<String, Position>) {
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let index = Range::new(0, free_positions.len()).ind_sample(&mut rand::thread_rng());
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self.foot_pos = free_positions.values().skip(index).next().unwrap().clone();
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self.draw_food();
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}
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fn draw_food(&self) {
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queue!(
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stdout(),
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Goto(self.foot_pos.x as u16, self.foot_pos.y as u16),
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PrintStyledFont("$".green())
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);
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}
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}
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