raekna-ui 0.1.0

use wgpu::{util::DeviceExt, Device};

use super::vertex::Vertex;

pub struct Buffers {
    pub vertex_buffer: wgpu::Buffer,
    pub index_buffer: wgpu::Buffer,
    pub num_indices: u32,
}

impl Buffers {
    pub fn new(device: &Device, vertices: &[Vertex], indices: &[u16]) -> Self {
        let vertex_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
            label: Some("Vertex Buffer"),
            contents: bytemuck::cast_slice(vertices),
            usage: wgpu::BufferUsages::VERTEX,
        });
        let index_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
            label: Some("Index Buffer"),
            contents: bytemuck::cast_slice(indices),
            usage: wgpu::BufferUsages::INDEX,
        });
        let num_indices = indices.len() as u32;

        Self {
            vertex_buffer,
            index_buffer,
            num_indices,
        }
    }
}