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transform those bad boys

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Quaternions 2023-09-27 14:10:45 -07:00
parent f492a09377
commit 0913063a00
1 changed files with 21 additions and 3 deletions
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24
src/primitives.rs
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@ -2,7 +2,7 @@ pub fn the_unit_cube_lol() -> obj::ObjData{
generate_partial_unit_cube([Some(glam::Affine2::IDENTITY);6]) generate_partial_unit_cube([Some(glam::Affine2::IDENTITY);6])
} }
pub fn generate_partial_unit_cube(face_transforms:[Option<glam::Affine2>;6])->obj::ObjData{ pub fn generate_partial_unit_cube(face_transforms:[Option<glam::Affine2>;6])->obj::ObjData{
let default_polys=vec![ let default_polys=[
// right (1, 0, 0) // right (1, 0, 0)
obj::SimplePolygon(vec![ obj::SimplePolygon(vec![
obj::IndexTuple(6,Some(0),Some(0)), obj::IndexTuple(6,Some(0),Some(0)),
@ -46,11 +46,29 @@ pub fn generate_partial_unit_cube(face_transforms:[Option<glam::Affine2>;6])->ob
obj::IndexTuple(7,Some(3),Some(5)), obj::IndexTuple(7,Some(3),Some(5)),
]), ]),
]; ];
let default_verts=[[0.0,0.0],[1.0,0.0],[1.0,1.0],[0.0,1.0]];
//generate transformed vertices //generate transformed vertices
let mut generated_verts=Vec::new();
let mut transforms=Vec::new();
let mut generated_polys=Vec::new(); let mut generated_polys=Vec::new();
for (i,maybe_transform) in face_transforms.iter().enumerate(){ for (i,maybe_transform) in face_transforms.iter().enumerate(){
if let Some(transform)=maybe_transform{ if let Some(transform)=maybe_transform{
generated_polys.push(default_polys[i].clone()); let transform_index=if let Some(transform_index)=transforms.iter().position(|&t|t==transform){
transform_index
}else{
//create new transform_index
let transform_index=transforms.len();
transforms.push(transform);
for vert in default_verts{
generated_verts.push(*transform.transform_point2(glam::vec2(vert[0],vert[1])).as_ref());
}
transform_index
};
generated_polys.push(obj::SimplePolygon(
default_polys[i].0.iter().map(
|&v|obj::IndexTuple(v.0,Some(v.1.unwrap()+4*transform_index),v.2)
).collect()
));
} }
} }
obj::ObjData{ obj::ObjData{
@ -64,7 +82,7 @@ pub fn generate_partial_unit_cube(face_transforms:[Option<glam::Affine2>;6])->ob
[ 1.,-1.,-1.],//right bottom front [ 1.,-1.,-1.],//right bottom front
[-1.,-1.,-1.],//left bottom front [-1.,-1.,-1.],//left bottom front
], ],
texture: vec![[0.0,0.0],[1.0,0.0],[1.0,1.0],[0.0,1.0]], texture: generated_verts,
normal: vec![ normal: vec![
[ 1., 0., 0.],//AabbFace::Right [ 1., 0., 0.],//AabbFace::Right
[ 0., 1., 0.],//AabbFace::Top [ 0., 1., 0.],//AabbFace::Top