1 files changed, 43 insertions, 0 deletions
diff --git a/src/mesh.rs b/src/mesh.rs
new file mode 100644
index 0000000..d491a97
--- /dev/null
+++ b/src/mesh.rs
@@ -0,0 +1,43 @@
+use crate::proto::Mesh;
+use anyhow::Result;
+use glam::vec3a;
+use weareshared::{packets::Resource, resources::MeshPart, store::ResourceStore};
+
+pub fn convert_mesh(m: Mesh, store: &ResourceStore) -> Result<Resource<MeshPart>> {
+    let mut index_strip = Vec::new();
+    let strip_len = m.indices[0];
+    let mut zeros = 0;
+    for i in 0..strip_len {
+        let val = m.indices[i as usize + 1];
+        index_strip.push((zeros - val) as u32);
+        if val == 0 {
+            zeros += 1;
+        }
+    }
+    let mut index = Vec::new();
+    for i in 0..index_strip.len() - 2 {
+        if i & 1 == 0 {
+            index.push([index_strip[i + 0], index_strip[i + 1], index_strip[i + 2]]);
+        } else {
+            index.push([index_strip[i + 0], index_strip[i + 2], index_strip[i + 1]]);
+        }
+    }
+
+    let mut positions = Vec::new();
+    let vert = m.vertices();
+    let vertex_count = vert.len() / 3;
+    let (mut x, mut y, mut z) = (0u8, 0u8, 0u8);
+    for i in 0..vertex_count {
+        x = x.wrapping_add(vert[vertex_count * 0 + i]);
+        y = y.wrapping_add(vert[vertex_count * 1 + i]);
+        z = z.wrapping_add(vert[vertex_count * 2 + i]);
+        positions.push(vec3a(x as f32, y as f32, z as f32));
+    }
+
+    Ok(store.set(&MeshPart {
+        index: Some(store.set(&index)?),
+        va_position: Some(store.set(&positions)?),
+        g_double_sided: Some(()),
+        ..Default::default()
+    })?)
+}