theoretical basic cube
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d663c3619a
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5
.vscode/settings.json
vendored
5
.vscode/settings.json
vendored
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@ -1,5 +0,0 @@
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{
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"rust-analyzer.linkedProjects": [
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".\\Cargo.toml"
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]
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}
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237
src/vvum.rs
237
src/vvum.rs
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@ -2,30 +2,41 @@ pub mod mesh_plugin {
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use bevy::{
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prelude::*,
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render::{
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mesh::{
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Indices, VertexAttributeValues
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},
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mesh::{Indices, VertexAttributeValues},
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render_resource::PrimitiveTopology,
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},
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};
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#[derive(Event)]
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pub struct SendMeshEvent {
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}
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pub struct SendMeshEvent {}
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pub struct MeshPlugin;
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impl Plugin for MeshPlugin {
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fn build(&self, app: &mut App) {
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app.add_systems(
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Startup, setup
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);
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app.add_systems(Startup, setup);
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}
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}
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fn as_mesh(
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vertices: Vec<[f32; 3]>,
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indices: Vec<u32>,
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normals: Vec<[f32; 3]>,
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colors: Vec<[f32; 4]>,
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) -> Mesh {
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Mesh::new(PrimitiveTopology::TriangleList)
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.with_inserted_attribute(Mesh::ATTRIBUTE_POSITION, vertices)
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.with_inserted_attribute(Mesh::ATTRIBUTE_COLOR, colors)
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.with_inserted_attribute(Mesh::ATTRIBUTE_NORMAL, normals)
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.with_indices(Some(Indices::U32(indices)))
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}
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fn emit_cube_at(
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pos: Vec3,
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mut subject: Vec<[f64; 3]>,
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vertices: &mut Vec<[f32; 3]>,
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indices: &mut Vec<u32>,
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normals: &mut Vec<[f32; 3]>,
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colors: &mut Vec<[f32; 4]>,
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color: Color,
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render_px: bool,
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render_nx: bool,
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render_py: bool,
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@ -33,47 +44,143 @@ pub mod mesh_plugin {
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render_pz: bool,
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render_nz: bool,
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) {
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if render_px {
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subject.push([0.5, -0.5, -0.5]);
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subject.push([0.5, -0.5, 0.5]);
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subject.push([0.5, 0.5, 0.5]);
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subject.push([0.5, 0.5, -0.5]);
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let len = vertices.len() as u32;
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vertices.extend([
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[pos.x + 0.5, pos.y - 0.5, pos.z - 0.5],
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[pos.x + 0.5, pos.y - 0.5, pos.z + 0.5],
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[pos.x + 0.5, pos.y + 0.5, pos.z + 0.5],
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[pos.x + 0.5, pos.y + 0.5, pos.z - 0.5],
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]);
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normals.extend([
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[1.0, 0.0, 0.0],
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[1.0, 0.0, 0.0],
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[1.0, 0.0, 0.0],
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[1.0, 0.0, 0.0],
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]);
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colors.extend([
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color.as_rgba_f32(),
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color.as_rgba_f32(),
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color.as_rgba_f32(),
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color.as_rgba_f32(),
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]);
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indices.extend([len, len + 3, len + 1, len + 1, len + 3, len + 2]);
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}
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if render_nx {
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subject.push([-0.5, -0.5, -0.5]);
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subject.push([-0.5, -0.5, 0.5]);
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subject.push([-0.5, 0.5, 0.5]);
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subject.push([-0.5, 0.5, -0.5]);
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let len = vertices.len() as u32;
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vertices.extend([
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[pos.x - 0.5, pos.y - 0.5, pos.z - 0.5],
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[pos.x - 0.5, pos.y - 0.5, pos.z + 0.5],
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[pos.x - 0.5, pos.y + 0.5, pos.z + 0.5],
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[pos.x - 0.5, pos.y + 0.5, pos.z - 0.5],
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]);
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normals.extend([
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[-1.0, 0.0, 0.0],
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[-1.0, 0.0, 0.0],
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[-1.0, 0.0, 0.0],
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[-1.0, 0.0, 0.0],
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]);
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colors.extend([
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color.as_rgba_f32(),
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color.as_rgba_f32(),
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color.as_rgba_f32(),
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color.as_rgba_f32(),
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]);
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indices.extend([len, len + 3, len + 1, len + 1, len + 3, len + 2]);
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}
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if render_py {
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subject.push([-0.5, 0.5, -0.5]);
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subject.push([0.5, 0.5, -0.5]);
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subject.push([0.5, 0.5, 0.5]);
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subject.push([-0.5, 0.5, 0.5]);
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let len = vertices.len() as u32;
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vertices.extend([
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[pos.x - 0.5, pos.y + 0.5, pos.z - 0.5],
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[pos.x + 0.5, pos.y + 0.5, pos.z - 0.5],
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[pos.x + 0.5, pos.y + 0.5, pos.z + 0.5],
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[pos.x - 0.5, pos.y + 0.5, pos.z + 0.5],
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]);
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normals.extend([
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[0.0, 1.0, 0.0],
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[0.0, 1.0, 0.0],
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[0.0, 1.0, 0.0],
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[0.0, 1.0, 0.0],
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]);
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colors.extend([
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color.as_rgba_f32(),
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color.as_rgba_f32(),
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color.as_rgba_f32(),
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color.as_rgba_f32(),
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]);
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indices.extend([len, len + 3, len + 1, len + 1, len + 3, len + 2]);
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// ^ this is the only one that we know for sure is correct
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}
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if render_ny {
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subject.push([-0.5, -0.5, -0.5]);
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subject.push([0.5, -0.5, -0.5]);
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subject.push([0.5, -0.5, 0.5]);
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subject.push([-0.5, -0.5, 0.5]);
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let len = vertices.len() as u32;
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vertices.extend([
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[pos.x - 0.5, pos.y - 0.5, pos.z - 0.5],
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[pos.x + 0.5, pos.y - 0.5, pos.z - 0.5],
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[pos.x + 0.5, pos.y - 0.5, pos.z + 0.5],
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[pos.x - 0.5, pos.y - 0.5, pos.z + 0.5],
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]);
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normals.extend([
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[0.0, -1.0, 0.0],
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[0.0, -1.0, 0.0],
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[0.0, -1.0, 0.0],
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[0.0, -1.0, 0.0],
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]);
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colors.extend([
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color.as_rgba_f32(),
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color.as_rgba_f32(),
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color.as_rgba_f32(),
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color.as_rgba_f32(),
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]);
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indices.extend([len, len + 3, len + 1, len + 1, len + 3, len + 2]);
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}
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if render_pz {
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subject.push([-0.5, -0.5, 0.5]);
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subject.push([-0.5, 0.5, 0.5]);
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subject.push([0.5, 0.5, 0.5]);
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subject.push([0.5, -0.5, 0.5]);
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let len = vertices.len() as u32;
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vertices.extend([
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[pos.x - 0.5, pos.y - 0.5, pos.z + 0.5],
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[pos.x - 0.5, pos.y + 0.5, pos.z + 0.5],
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[pos.x + 0.5, pos.y + 0.5, pos.z + 0.5],
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[pos.x + 0.5, pos.y - 0.5, pos.z + 0.5],
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]);
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normals.extend([
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[0.0, 0.0, 1.0],
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[0.0, 0.0, 1.0],
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[0.0, 0.0, 1.0],
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[0.0, 0.0, 1.0],
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]);
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colors.extend([
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color.as_rgba_f32(),
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color.as_rgba_f32(),
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color.as_rgba_f32(),
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color.as_rgba_f32(),
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]);
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indices.extend([len, len + 3, len + 1, len + 1, len + 3, len + 2]);
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}
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if render_nz {
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subject.push([-0.5, -0.5, -0.5]);
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subject.push([-0.5, 0.5, -0.5]);
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subject.push([0.5, 0.5, -0.5]);
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subject.push([0.5, -0.5, -0.5]);
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let len = vertices.len() as u32;
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vertices.extend([
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[pos.x - 0.5, pos.y - 0.5, pos.z - 0.5],
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[pos.x - 0.5, pos.y + 0.5, pos.z - 0.5],
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[pos.x + 0.5, pos.y + 0.5, pos.z - 0.5],
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[pos.x + 0.5, pos.y - 0.5, pos.z - 0.5],
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]);
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normals.extend([
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[0.0, 0.0, -1.0],
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[0.0, 0.0, -1.0],
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[0.0, 0.0, -1.0],
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[0.0, 0.0, -1.0],
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]);
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colors.extend([
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color.as_rgba_f32(),
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color.as_rgba_f32(),
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color.as_rgba_f32(),
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color.as_rgba_f32(),
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]);
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indices.extend([len, len + 3, len + 1, len + 1, len + 3, len + 2]);
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}
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}
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@ -81,18 +188,12 @@ pub mod mesh_plugin {
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mut events: EventReader<SendMeshEvent>,
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mut commands: Commands,
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mut meshes: ResMut<Assets<Mesh>>,
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mut asset_server: ResMut<AssetServer>
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mut asset_server: ResMut<AssetServer>,
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) {
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/*
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in the send mesh event will be the handle of what we update if it is already present, and the mesh data in an octtree or other voxel format
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*/
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let mut verts = Vec::new();
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emit_cube_at(Vec3::ZERO, verts, true, true, true, true, true, true);
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}
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fn setup(
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mut commands: Commands,
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@ -100,6 +201,48 @@ pub mod mesh_plugin {
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mut material: ResMut<Assets<StandardMaterial>>,
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mut meshes: ResMut<Assets<Mesh>>,
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) {
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let mut vertices = Vec::new();
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let mut normals = Vec::new();
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let mut indices = Vec::new();
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let mut colors: Vec<[f32; 4]> = Vec::new();
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emit_cube_at(
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Vec3::ZERO,
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&mut vertices,
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&mut indices,
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&mut normals,
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&mut colors,
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Color::RED,
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true,
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true,
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true,
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true,
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true,
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true,
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);
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let test_mesh_handle: Handle<Mesh> =
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meshes.add(as_mesh(vertices, indices, normals, colors));
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commands.spawn(PbrBundle {
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mesh: test_mesh_handle,
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..default()
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});
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let camera_and_light_transform =
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Transform::from_xyz(1.8, 1.8, 1.8).looking_at(Vec3::ZERO, Vec3::Y);
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commands.spawn(Camera3dBundle {
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transform: camera_and_light_transform,
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..default()
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});
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commands.spawn(PointLightBundle {
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point_light: PointLight {
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intensity: 1000.0,
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range: 100.0,
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..default()
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},
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transform: camera_and_light_transform,
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..default()
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});
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}
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}
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