43 lines
1.0 KiB
Rust
43 lines
1.0 KiB
Rust
|
mod raylib;
|
||
|
|
|
||
|
|
use raylib::*;
|
||
|
|
|
||
|
|
fn main() {
|
||
|
|
let screen: Vector2<u32> = Vector2 { x: 800, y: 600 };
|
||
|
|
let ball_radius: f32 = 100.0;
|
||
|
|
let mut pos: Vector2<f32> = Vector2 {
|
||
|
|
x: screen.x as f32 / 2.0,
|
||
|
|
y: screen.y as f32 / 2.0,
|
||
|
|
};
|
||
|
|
let mut velocity: Vector2<f32> = Vector2 { x: 200.0, y: 200.0 };
|
||
|
|
|
||
|
|
init_window(screen.x, screen.y, "Bouncing ball");
|
||
|
|
set_target_fps(60);
|
||
|
|
|
||
|
|
while !window_should_close() {
|
||
|
|
begin_drawing();
|
||
|
|
clear_background(colors::BLACK);
|
||
|
|
|
||
|
|
let dt: f32 = get_frame_time();
|
||
|
|
velocity.y += dt * 1000.0;
|
||
|
|
|
||
|
|
let x: f32 = pos.x + velocity.x * dt;
|
||
|
|
if x - ball_radius < 0.0 || x + ball_radius >= screen.x as f32{
|
||
|
|
velocity.x *= -1.0;
|
||
|
|
} else {
|
||
|
|
pos.x = x;
|
||
|
|
}
|
||
|
|
|
||
|
|
let y: f32 = pos.y + velocity.y * dt;
|
||
|
|
if y - ball_radius < 0.0 || y + ball_radius >= screen.y as f32 {
|
||
|
|
velocity.y *= -1.0;
|
||
|
|
} else {
|
||
|
|
pos.y = y;
|
||
|
|
}
|
||
|
|
|
||
|
|
draw_circle_v(pos, ball_radius, colors::RED);
|
||
|
|
end_drawing();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|