#[repr(C)]
#[derive(Copy, Clone, Debug, bytemuck::Pod, bytemuck::Zeroable)]
pub struct Vertex {
    position: [f32; 2],
    color: [f32; 3],
}

impl Vertex {
    pub fn new(position: [f32; 2], color: [f32; 3]) -> Vertex {
        Vertex {position, color}
    }

    pub fn new_white(position: [f32; 2]) -> Vertex {
        Vertex {position, color: [1.0, 1.0, 1.0]}
    }

    const ATTRIBS: [wgpu::VertexAttribute; 2] = wgpu::vertex_attr_array![0 => Float32x2, 1 => Float32x3];

    pub const fn desc() -> wgpu::VertexBufferLayout<'static> {
        use std::mem;
        wgpu::VertexBufferLayout {
            array_stride: mem::size_of::<Self>() as wgpu::BufferAddress,
            step_mode: wgpu::VertexStepMode::Vertex,
            attributes: &Self::ATTRIBS,
        }
    }
}