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box-o-sand/piston-tutorials/sudoku/src/gameboard_controller.rs

58 lines
1.8 KiB

//! Gameboard controller
use piston::GenericEvent;
use crate::Gameboard;
pub struct GameboardController {
pub gameboard: Gameboard,
pub selected_cell: Option<[usize; 2]>,
cursor_pos: [f64; 2],
}
impl GameboardController {
pub fn new(gameboard: Gameboard) -> GameboardController {
GameboardController {
gameboard: gameboard,
selected_cell: None,
cursor_pos: [0.0; 2],
}
}
pub fn event<E: GenericEvent>(&mut self, pos: [f64; 2], size: f64, e: &E) {
use piston::input::{Button, Key, MouseButton};
if let Some(pos) = e.mouse_cursor_args() {
self.cursor_pos = pos;
}
if let Some(Button::Mouse(MouseButton::Left)) = e.press_args() {
let x = self.cursor_pos[0] - pos[0];
let y = self.cursor_pos[1] - pos[1];
if x >= 0.0 && x < size && y >= 0.0 && y < size {
let cell_x = (x / size * 9.0) as usize;
let cell_y = (y / size * 9.0) as usize;
self.selected_cell = Some([cell_x, cell_y]);
}
}
if let Some(Button::Keyboard(key)) = e.press_args() {
if let Some(ind) = self.selected_cell {
match key {
Key::D1 => self.gameboard.set(ind, 1),
Key::D2 => self.gameboard.set(ind, 2),
Key::D3 => self.gameboard.set(ind, 3),
Key::D4 => self.gameboard.set(ind, 4),
Key::D5 => self.gameboard.set(ind, 5),
Key::D6 => self.gameboard.set(ind, 6),
Key::D7 => self.gameboard.set(ind, 7),
Key::D8 => self.gameboard.set(ind, 8),
Key::D9 => self.gameboard.set(ind, 9),
_ => {}
}
}
}
}
}