♻️ refactor: file offsets

src/main.rs

@@ -50,7 +50,7 @@ fn main () {
 		
 		let m = gltf_node_get_mat4 (&node);
 		
-		for prim in mesh.primitives () {
+		for (i, prim) in mesh.primitives ().enumerate () {
 			assert_eq! (prim.mode (), gltf::mesh::Mode::Triangles);
 			
 			let indices = prim.indices ().unwrap ();
@@ -80,7 +80,7 @@ fn main () {
 				num_triangles: u32::try_from (indices_slice.len () / 6).unwrap (),
 				//num_triangles: u32::try_from (1).unwrap (),
 			};
-			texts.push_str ("\0");
+			texts.push_str (&format! ("{}/{}\0", node.name ().unwrap (), i));
 			
 			meshes.push (mesh);
 			
@@ -178,6 +178,17 @@ fn main () {
 		},
 	];
 	
+	let joints = [
+		iqm::Joint {
+			name: u32::try_from (texts.len ()).unwrap (),
+			parent: -1,
+			translate: [0.0, 0.0, 0.0],
+			rotate: [1.0, 0.0, 0.0, 0.0],
+			scale: [1.0, 1.0, 1.0],
+		}
+	];
+	texts.push_str ("bogus_joint\0");
+	
 	let vertexes = vertexes;
 	let triangles = triangles;
 	let meshes = meshes;
@@ -186,20 +197,25 @@ fn main () {
 	let num_vertexes = u32::try_from (vertexes.len ()).unwrap ();
 	let num_triangles = u32::try_from (triangles.len ()).unwrap ();
 	
+	let num_joints = u32::try_from (joints.len ()).unwrap ();
+	
 	let num_text = texts.len ();
 	let num_text = u32::try_from (num_text).unwrap ();
 	
 	let num_meshes = u32::try_from (meshes.len ()).unwrap ();
 	let num_vertexarrays = u32::try_from (vertexarrays_unplaced.len ()).unwrap ();
 	
+	let mut offset = 0;
+	
 	let header_len = 124u32;
-	let ofs_meshes = header_len;
+	
-	let ofs_vertexarrays = ofs_meshes + num_meshes * 6 * 4;
+	offset += header_len;
-	// Not part of IQM spec, but I need it for self-care
+	let ofs_meshes = offset;
-	let ofs_vertexes = ofs_vertexarrays + num_vertexarrays * 5 * 4;
+	offset += num_meshes * 6 * 4;
+	let ofs_vertexarrays = offset;
+	offset += num_vertexarrays * 5 * 4;
 	
 	let mut vertexarrays = Vec::default ();
-	let mut ofs_va = ofs_vertexes;
 	
 	for va_in in vertexarrays_unplaced {
 		let stride = va_in.stride ();
@@ -209,18 +225,23 @@ fn main () {
 			flags: va_in.flags,
 			format: va_in.format,
 			size: va_in.size,
-			offset: ofs_va,
+			offset,
 		});
 		
-		ofs_va += num_vertexes * stride;
+		offset += num_vertexes * stride;
 	}
 	
 	let vertexarrays = vertexarrays;
 	
-	let ofs_triangles = ofs_va;
+	let ofs_triangles = offset;
-	let ofs_text = ofs_triangles + num_triangles * 3 * 4;
+	offset += num_triangles * 3 * 4;
+	let ofs_text = offset;
+	offset += num_text;
+	let ofs_joints = offset;
+	// offset += num_joints * 48;
 	
-	let filesize = ofs_text + num_text;
+	let filesize = offset;
+	let _ = offset;
 	
 	let mut f = File::create (output_path).unwrap ();
 	
@@ -386,6 +407,14 @@ mod iqm {
 		vertex: [u32; 3],
 	}
 	
+	pub struct Joint {
+		pub name: u32,
+		pub parent: i32,
+		pub translate: [f32; 3],
+		pub rotate: [f32; 4],
+		pub scale: [f32; 3],
+	}
+	
 	pub struct Vertex {
 		pub position: [f32; 3],
 		pub normal: [f32; 3],