140 lines
4.1 KiB
Rust
140 lines
4.1 KiB
Rust
use cat_box::{get_keyboard_state, physics::check_for_collision, Game, Sprite};
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use sdl2::keyboard::Scancode;
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use std::time::Instant;
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mod ball;
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#[derive(Copy, Clone, Debug, Eq, PartialEq)]
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enum Direction {
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Up,
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Down,
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Still,
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}
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const CORNER: i32 = 37 / 2;
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fn main() {
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let game = Game::new("pingPong", 500, 500);
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let mut ball = ball::Ball::new(250, 250);
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let paddle_bytes = include_bytes!("../paddle.png");
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let mut paddle = Sprite::from_bytes(paddle_bytes, 37, 250 - CORNER).unwrap();
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let mut paddle_enemy = Sprite::from_bytes(paddle_bytes, 500 - 37, 250 - CORNER).unwrap();
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let mut held = true;
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let mut dir = Direction::Still;
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let mut dir_enemy = Direction::Still;
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let mut now = Instant::now();
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game.run(|ctx| {
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ctx.set_background_colour(0, 0, 0);
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let (x_player, y_player) = paddle.position().into();
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let (x_enemy, y_enemy) = paddle_enemy.position().into();
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let (_, y_ball) = ball.sprite.position().into();
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let keys = get_keyboard_state(ctx).keys;
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for key in &keys {
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match key {
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Scancode::W | Scancode::Up => {
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dir = Direction::Up;
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held = true;
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}
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Scancode::S | Scancode::Down => {
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dir = Direction::Down;
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held = true;
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}
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_ => {
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dir = Direction::Still;
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held = false;
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}
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};
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}
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if y_enemy < y_ball {
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dir_enemy = Direction::Down;
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}
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if y_enemy > y_ball {
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dir_enemy = Direction::Up;
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}
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if now.elapsed().as_millis() >= 90 {
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if check_for_collision(&paddle, &ball.sprite) {
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if dir == Direction::Up {
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ball.vol_y += 1;
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}
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if dir == Direction::Down {
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ball.vol_y -= 1;
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}
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ball.vol_x *= -1;
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ball.vol_y *= -1;
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}
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if check_for_collision(&paddle_enemy, &ball.sprite) {
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if dir_enemy == Direction::Up {
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ball.vol_y += 1;
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}
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if dir_enemy == Direction::Down {
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ball.vol_y -= 1;
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}
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ball.vol_x *= -1;
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ball.vol_y *= -1;
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}
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if y_ball == 0 || y_ball == 500
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{
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ball.vol_y *= -1;
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}
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ball.sprite.translate((ball.vol_x, ball.vol_y));
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}
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if now.elapsed().as_millis() >= 120 {
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if (y_enemy - CORNER) < 0 {
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dir_enemy = Direction::Still;
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paddle_enemy.set_position((x_enemy, 1 + CORNER));
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} else if (y_player + CORNER) > 500 {
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dir_enemy = Direction::Still;
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paddle_enemy.set_position((x_enemy, 500 - CORNER));
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}
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match dir_enemy {
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Direction::Up => {
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paddle_enemy.translate((0, 25));
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}
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Direction::Down => {
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paddle_enemy.translate((0, -25));
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}
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_ => (),
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};
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}
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if now.elapsed().as_millis() >= 120 {
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if (y_player - CORNER) < 0 {
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dir = Direction::Still;
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paddle.set_position((x_player, 1 + CORNER));
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} else if (y_player + CORNER) > 500 {
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dir = Direction::Still;
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paddle.set_position((x_player, 500 - CORNER));
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}
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if held {
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match dir {
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Direction::Up => {
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paddle.translate((0, 25));
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}
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Direction::Down => {
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paddle.translate((0, -25));
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}
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_ => (),
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};
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}
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now = Instant::now();
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}
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ball.sprite.draw(ctx).unwrap();
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paddle.draw(ctx).unwrap();
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paddle_enemy.draw(ctx).unwrap();
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})
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.unwrap();
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}
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