Rust implementation

1 files changed, 109 insertions, 0 deletions

diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..513a830
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,109 @@
+use macroquad::prelude::*;
+
+const SCREEN_WIDTH: f32 = 500.0;
+const SCREEN_HEIGHT: f32 = 800.0;
+const PLAYER_SIZE: f32 = 50.0;
+const GRAVITY: f32 = 1.2;
+const JUMP_HEIGHT: f32 = 20.0;
+const BAR_GAP: f32 = 150.0;
+const BAR_SPEED: f32 = 2.0;
+const BAR_WIDTH: f32 = 50.0;
+
+struct Player {
+  x: f32,
+  y: f32,
+  velocity_y: f32,
+}
+
+impl Player {
+  fn draw(&self) {
+    draw_rectangle(self.x, self.y, PLAYER_SIZE, PLAYER_SIZE, GOLD);
+  }
+
+  fn is_colliding_with_bar(&self, bar: &Bar) -> bool {
+    if self.x + PLAYER_SIZE < bar.x
+         || self.x > bar.x + BAR_WIDTH {
+       return false;
+    }
+    if self.y + PLAYER_SIZE < bar.y + BAR_GAP && self.y > bar.y - BAR_GAP {
+       return false;
+    }
+    true
+  }
+}
+
+struct Bar {
+  x: f32,
+  y: f32,
+  velocity_x: f32,
+}
+
+impl Bar {
+  fn draw(&self) {
+    draw_rectangle(self.x, 0.0, BAR_WIDTH, self.y - BAR_GAP, BLACK);
+    draw_rectangle(self.x, self.y + BAR_GAP, BAR_WIDTH, SCREEN_HEIGHT, BLACK);
+  }
+}
+
+#[macroquad::main("FlappyBird")]
+async fn main() {
+    loop {
+        loop {
+            request_new_screen_size(SCREEN_WIDTH, SCREEN_HEIGHT);
+            clear_background(BLUE);
+            if is_key_pressed(KeyCode::Enter) {
+                break;
+            }
+            next_frame().await
+        }
+    
+        let score = play().await;
+        println!("{}", score);
+    }
+}
+
+async fn play() -> i32 {
+    let x = 100.0;
+    let y = (SCREEN_HEIGHT - PLAYER_SIZE) / 2.0;
+    let mut player = Player {x, y, velocity_y: 0.0};
+
+    let bar_y = macroquad::rand::gen_range(2.0 * BAR_GAP, SCREEN_HEIGHT - (2.0 * BAR_GAP));
+    let mut bar = Bar {x: SCREEN_WIDTH, y: bar_y, velocity_x: BAR_SPEED};
+
+    let mut score = 0;
+    
+    loop {
+        clear_background(BLUE);
+
+        player.velocity_y += GRAVITY;
+
+        if is_key_pressed(KeyCode::Space) {
+           player.velocity_y = -JUMP_HEIGHT;
+        }
+
+        if player.y < 0.0 || player.y > SCREEN_HEIGHT - PLAYER_SIZE {
+           break;
+        }
+        player.y += player.velocity_y;
+
+        bar.x -= bar.velocity_x;
+
+        if bar.x < -BAR_WIDTH {
+            bar.x = SCREEN_WIDTH;
+            bar.y = (2.0 * BAR_GAP) +
+                    (macroquad::rand::rand() as f32 % (SCREEN_HEIGHT - (4.0 * BAR_GAP)));
+            score += 1;
+        }
+
+        if player.is_colliding_with_bar(&bar) {
+            break;
+        }
+
+        player.draw();
+        bar.draw();
+        draw_text(&score.to_string(), SCREEN_WIDTH / 2.0 - 25.0, 50.0, 60.0, WHITE);
+
+        next_frame().await
+    }
+    score
+}
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