Method input

src/renderer.rs:37–69

(&mut self, input: &WinitInputHelper, width: u16, height: u16)

    }

    fn input(&mut self, input: &WinitInputHelper, width: u16, height: u16) {
        self.info_window_open ^= input.key_pressed(VirtualKeyCode::T);

        if input.key_pressed(VirtualKeyCode::Space) {
            let val = PAUSED.load(Ordering::Relaxed);
            PAUSED.store(!val, Ordering::Relaxed)
        }

        if let Some((mx, my)) = input.mouse() {
            // Scroll steps to double/halve the scale
            let steps = 5.0;

            // Modify input
            let zoom = (-input.scroll_diff() / steps).exp2();

            // Screen space -> view space
            let target =
                Vec2::new(mx * 2.0 - width as f32, height as f32 - my * 2.0) / height as f32;

            // Move view position based on target
            self.pos += target * self.scale * (1.0 - zoom);

            // Zoom
            self.scale *= zoom;
        }

        // Grab
        if input.mouse_held(2) {
            let (mdx, mdy) = input.mouse_diff();
            self.pos.x -= mdx / height as f32 * self.scale * 2.0;
            self.pos.y += mdy / height as f32 * self.scale * 2.0;
        }
    }

    fn render(&mut self, ctx: &mut quarkstrom::RenderContext) {
        ctx.set_view_pos(self.pos);