refactor(levels): no longer q3 specific

1 files changed, 156 insertions, 0 deletions

diff --git a/stockton-levels/src/parts/vertices.rs b/stockton-levels/src/parts/vertices.rs
new file mode 100644
index 0000000..0b7dfd6
--- /dev/null
+++ b/stockton-levels/src/parts/vertices.rs
@@ -0,0 +1,156 @@
+use crate::types::Rgba;
+use na::{Vector2, Vector3};
+use serde::de;
+use serde::de::{Deserializer, MapAccess, SeqAccess, Visitor};
+use serde::ser::{Serialize, SerializeStruct, Serializer};
+use serde::Deserialize;
+use std::fmt;
+
+pub type VertexRef = u32;
+
+/// A vertex, used to describe a face.
+#[derive(Debug, Clone, Copy, PartialEq)]
+pub struct Vertex {
+    pub position: Vector3<f32>,
+    pub tex: Vector2<f32>,
+    pub color: Rgba,
+}
+
+impl Serialize for Vertex {
+    fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
+        let mut state = serializer.serialize_struct("Vertex", 5)?;
+        state.serialize_field("pos_x", &self.position.x)?;
+        state.serialize_field("pos_y", &self.position.y)?;
+        state.serialize_field("pos_z", &self.position.z)?;
+        state.serialize_field("tex_u", &self.tex.x)?;
+        state.serialize_field("tex_v", &self.tex.y)?;
+        state.serialize_field("color", &self.color)?;
+
+        state.end()
+    }
+}
+
+impl<'de> Deserialize<'de> for Vertex {
+    fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
+        #[derive(Deserialize)]
+        #[serde(field_identifier, rename_all = "snake_case")]
+        enum Field {
+            PosX,
+            PosY,
+            PosZ,
+            TexU,
+            TexV,
+            Color,
+        }
+        const FIELDS: &'static [&'static str] =
+            &["pos_x", "pos_y", "pos_z", "tex_x", "tex_y", "color"];
+
+        struct VertexVisitor;
+
+        impl<'de> Visitor<'de> for VertexVisitor {
+            type Value = Vertex;
+
+            fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+                formatter.write_str("struct Vertex")
+            }
+
+            fn visit_seq<V>(self, mut seq: V) -> Result<Vertex, V::Error>
+            where
+                V: SeqAccess<'de>,
+            {
+                let pos_x = seq
+                    .next_element()?
+                    .ok_or_else(|| de::Error::invalid_length(0, &self))?;
+                let pos_y = seq
+                    .next_element()?
+                    .ok_or_else(|| de::Error::invalid_length(1, &self))?;
+                let pos_z = seq
+                    .next_element()?
+                    .ok_or_else(|| de::Error::invalid_length(2, &self))?;
+                let tex_u = seq
+                    .next_element()?
+                    .ok_or_else(|| de::Error::invalid_length(3, &self))?;
+                let tex_v = seq
+                    .next_element()?
+                    .ok_or_else(|| de::Error::invalid_length(4, &self))?;
+                let color = seq
+                    .next_element()?
+                    .ok_or_else(|| de::Error::invalid_length(5, &self))?;
+                Ok(Vertex {
+                    position: Vector3::new(pos_x, pos_y, pos_z),
+                    tex: Vector2::new(tex_u, tex_v),
+                    color,
+                })
+            }
+
+            fn visit_map<V>(self, mut map: V) -> Result<Vertex, V::Error>
+            where
+                V: MapAccess<'de>,
+            {
+                let mut pos_x = None;
+                let mut pos_y = None;
+                let mut pos_z = None;
+                let mut tex_u = None;
+                let mut tex_v = None;
+                let mut color = None;
+                while let Some(key) = map.next_key()? {
+                    match key {
+                        Field::PosX => {
+                            if pos_x.is_some() {
+                                return Err(de::Error::duplicate_field("pos_x"));
+                            }
+                            pos_x = Some(map.next_value()?);
+                        }
+                        Field::PosY => {
+                            if pos_y.is_some() {
+                                return Err(de::Error::duplicate_field("pos_y"));
+                            }
+                            pos_y = Some(map.next_value()?);
+                        }
+                        Field::PosZ => {
+                            if pos_z.is_some() {
+                                return Err(de::Error::duplicate_field("pos_z"));
+                            }
+                            pos_z = Some(map.next_value()?);
+                        }
+                        Field::TexU => {
+                            if tex_u.is_some() {
+                                return Err(de::Error::duplicate_field("tex_u"));
+                            }
+                            tex_u = Some(map.next_value()?);
+                        }
+                        Field::TexV => {
+                            if tex_v.is_some() {
+                                return Err(de::Error::duplicate_field("tex_v"));
+                            }
+                            tex_v = Some(map.next_value()?);
+                        }
+                        Field::Color => {
+                            if color.is_some() {
+                                return Err(de::Error::duplicate_field("color"));
+                            }
+                            color = Some(map.next_value()?);
+                        }
+                    }
+                }
+                let position = Vector3::new(
+                    pos_x.ok_or_else(|| de::Error::missing_field("pos_x"))?,
+                    pos_y.ok_or_else(|| de::Error::missing_field("pos_y"))?,
+                    pos_z.ok_or_else(|| de::Error::missing_field("pos_z"))?,
+                );
+                let tex = Vector2::new(
+                    tex_u.ok_or_else(|| de::Error::missing_field("tex_u"))?,
+                    tex_v.ok_or_else(|| de::Error::missing_field("tex_v"))?,
+                );
+                let color = color.ok_or_else(|| de::Error::missing_field("nanos"))?;
+                Ok(Vertex {
+                    position,
+                    tex,
+                    color,
+                })
+            }
+        }
+
+        deserializer.deserialize_struct("Vertex", FIELDS, VertexVisitor)
+    }
+}