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path: root/src/classes/mesh.rs
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use super::streaminginfo::StreamingInfo;
use crate::object::{Value, parser::FromValue};
use anyhow::Result;
use glam::Mat4;
use serde::Serialize;

#[derive(Debug, Serialize)]
pub struct Mesh {
    pub name: String,
    pub bind_pose: Vec<Mat4>,
    pub bone_name_hashes: Vec<u32>,
    pub index_format: i32,
    pub index_buffer: Vec<u8>,
    pub sub_meshes: Vec<SubMesh>,
    pub stream_data: StreamingInfo,
}

#[derive(Debug, Serialize)]
pub struct SubMesh {
    pub topology: i32,
    pub vertex_count: u32,
    pub base_vertex: u32,
    pub first_byte: u32,
    pub first_vertex: u32,
    pub index_count: u32,
}

#[derive(Debug, Serialize)]
pub struct VertexData {
    pub channels: Vec<ChannelInfo>,
    pub data_size: Vec<u8>,
    pub vertex_count: u32,
}

#[derive(Debug, Serialize)]
pub struct ChannelInfo {
    pub dimension: u8,
    pub format: u8,
    pub offset: u8,
    pub stream: u8,
}

impl FromValue for Mesh {
    fn from_value(v: Value) -> Result<Self> {
        let mut fields = v.as_class("Mesh").unwrap();
        Ok(Mesh {
            name: fields.remove("m_Name").unwrap().parse().unwrap(),
            index_format: fields.remove("m_IndexFormat").unwrap().parse().unwrap(),
            index_buffer: fields
                .remove("m_IndexBuffer")
                .unwrap()
                .as_vector()
                .unwrap()
                .into_iter()
                .map(|e| e.as_u8().unwrap())
                .collect(),
            sub_meshes: fields
                .remove("m_SubMeshes")
                .unwrap()
                .as_vector()
                .unwrap()
                .into_iter()
                .map(|e| e.parse().unwrap())
                .collect(),
            stream_data: fields.remove("m_StreamData").unwrap().parse().unwrap(),
            bind_pose: fields
                .remove("m_BindPose")
                .unwrap()
                .as_vector()
                .unwrap()
                .into_iter()
                .map(|e| e.parse().unwrap())
                .collect(),
            bone_name_hashes: fields
                .remove("m_BoneNameHashes")
                .unwrap()
                .as_vector()
                .unwrap()
                .into_iter()
                .map(|e| e.parse().unwrap())
                .collect(),
        })
    }
}

impl FromValue for VertexData {
    fn from_value(v: Value) -> Result<Self> {
        let mut fields = v.as_class("VertexData").unwrap();
        Ok(VertexData {
            vertex_count: fields.remove("vertexCount").unwrap().parse().unwrap(),
            channels: fields
                .remove("m_Channels")
                .unwrap()
                .as_array()
                .unwrap()
                .into_iter()
                .map(|e| e.parse().unwrap())
                .collect(),
            data_size: fields.remove("m_DataSize").unwrap().as_typeless().unwrap(),
        })
    }
}

impl FromValue for ChannelInfo {
    fn from_value(v: Value) -> Result<Self> {
        let mut fields = v.as_class("ChannelInfo").unwrap();
        Ok(ChannelInfo {
            dimension: fields.remove("dimension").unwrap().parse().unwrap(),
            format: fields.remove("format").unwrap().parse().unwrap(),
            offset: fields.remove("offset").unwrap().parse().unwrap(),
            stream: fields.remove("stream").unwrap().parse().unwrap(),
        })
    }
}

impl FromValue for SubMesh {
    fn from_value(v: Value) -> Result<Self> {
        let mut fields = v.as_class("SubMesh").unwrap();
        Ok(SubMesh {
            topology: fields.remove("topology").unwrap().parse().unwrap(),
            vertex_count: fields.remove("vertexCount").unwrap().parse().unwrap(),
            base_vertex: fields.remove("baseVertex").unwrap().parse().unwrap(),
            first_byte: fields.remove("firstByte").unwrap().parse().unwrap(),
            first_vertex: fields.remove("firstVertex").unwrap().parse().unwrap(),
            index_count: fields.remove("indexCount").unwrap().parse().unwrap(),
        })
    }
}