Method begin_mode_2d

native/shared/src/renderer/mod.rs:12047–12074

(&mut self, offset_x: f32, offset_y: f32, target_x: f32, target_y: f32, rotation: f32, zoom: f32)

    // ============================================================

    pub fn begin_mode_2d(&mut self, offset_x: f32, offset_y: f32, target_x: f32, target_y: f32, rotation: f32, zoom: f32) {
        self.uniform_slot_count += 1;
        if self.uniform_slot_count >= MAX_UNIFORM_SLOTS { return; }
        self.current_uniform_idx = self.uniform_slot_count as u32;

        let cos_r = rotation.to_radians().cos();
        let sin_r = rotation.to_radians().sin();
        let tx = target_x;
        let ty = target_y;
        let view_proj: [[f32; 4]; 4] = [
            [zoom * cos_r, -zoom * sin_r, 0.0, 0.0],
            [zoom * sin_r,  zoom * cos_r, 0.0, 0.0],
            [0.0, 0.0, 1.0, 0.0],
            [offset_x - zoom * (cos_r * tx + sin_r * ty),
             offset_y + zoom * (sin_r * tx - cos_r * ty),
             0.0, 1.0],
        ];

        let w = self.logical_width as f32;
        let h = self.logical_height as f32;
        let uniforms = Uniforms2D { screen_size: [w, h], _pad: [0.0; 2], view_proj };
        self.queue.write_buffer(
            &self.uniform_buffers[self.current_uniform_idx as usize],
            0,
            bytemuck::bytes_of(&uniforms),
        );
        self.render_mode = RenderMode::Mode2D;
    }

    pub fn end_mode_2d(&mut self) {
        self.current_uniform_idx = 0;