1 files changed, 135 insertions, 0 deletions
diff --git a/client/src/world/map.rs b/client/src/world/map.rs
new file mode 100644
index 0000000..fb67918
--- /dev/null
+++ b/client/src/world/map.rs
@@ -0,0 +1,135 @@
+use ::map as mapfile;
+use anyhow::Error;
+use common::{num::Cast, vec};
+use log::{info, log};
+use ndarray::Array2;
+use std::{
+    collections::{hash_map, HashMap},
+    fs::File,
+    mem,
+};
+
+pub use mapfile::format;
+pub use mapfile::{
+    format::Tile,
+    reader::{self, Color, LayerTilemapType},
+};
+pub const TILE_NUM: u32 = 16;
+
+pub struct Layer {
+    pub color: Color,
+    pub image: Option<usize>,
+    pub tiles: Array2<Tile>,
+    pub kind: LayerTilemapType,
+}
+
+pub struct Map {
+    pub layers: Vec<Layer>,
+    pub tilesets: HashMap<Option<usize>, Array2<Color>>,
+}
+
+impl Map {
+    pub fn empty() -> Self {
+        Self {
+            layers: Vec::new(),
+            tilesets: HashMap::new(),
+        }
+    }
+
+    pub fn load(file: File) -> Result<Self, Error> {
+        info!("loading map");
+        let datafile = datafile::Reader::new(file).unwrap();
+        let mut map = mapfile::Reader::from_datafile(datafile);
+
+        let mut layers = vec![];
+        for group_idx in map.group_indices() {
+            let group = map.group(group_idx).unwrap();
+
+            if group.parallax_x != 100
+                || group.parallax_y != 100
+                || group.offset_x != 0
+                || group.offset_y != 0
+                || group.clipping.is_some()
+            {
+                continue;
+            }
+
+            for layer_idx in group.layer_indices {
+                let layer = map.layer(layer_idx).unwrap();
+
+                let tilemap = if let reader::LayerType::Tilemap(t) = layer.t {
+                    t
+                } else {
+                    continue;
+                };
+                let normal = if let Some(n) = tilemap.type_.to_normal() {
+                    n
+                } else {
+                    continue;
+                };
+                let tiles = map.layer_tiles(tilemap.tiles(normal.data)).unwrap();
+                layers.push(Layer {
+                    color: normal.color,
+                    image: normal.image,
+                    kind: tilemap.type_,
+                    tiles,
+                });
+            }
+        }
+
+        let mut tilesets = HashMap::new();
+        for layer in &layers {
+            match tilesets.entry(layer.image) {
+                hash_map::Entry::Occupied(_) => {}
+                hash_map::Entry::Vacant(v) => {
+                    let data = match layer.image {
+                        None => Array2::from_elem(
+                            (1, 1),
+                            Color {
+                                alpha: 255,
+                                red: 255,
+                                blue: 255,
+                                green: 0,
+                            },
+                        ),
+                        Some(image_idx) => {
+                            let image = map.image(image_idx).unwrap();
+                            let height = image.height.usize();
+                            let width = image.width.usize();
+                            match image.data {
+                                Some(d) => {
+                                    let data = map.image_data(d).unwrap();
+                                    if data.len() % mem::size_of::<Color>() != 0 {
+                                        panic!("image shape invalid");
+                                    }
+                                    let data: Vec<Color> = unsafe { vec::transmute(data) };
+                                    Array2::from_shape_vec((height, width), data).unwrap()
+                                }
+                                None => {
+                                    continue;
+                                    // let image_name = map.image_name(image.name)?;
+                                    // // WARN? Unknown external image
+                                    // // WARN! Wrong dimensions
+                                    // str::from_utf8(&image_name).ok()
+                                    //     .and_then(sanitize)
+                                    //     .map(&mut external_tileset_loader)
+                                    //     .transpose()?
+                                    //     .unwrap_or(None)
+                                    //     .unwrap_or_else(|| Array2::from_elem((1, 1), Color::white()))
+                                }
+                            }
+                        }
+                    };
+                    v.insert(data);
+                }
+            }
+        }
+
+        info!(
+            "{} layers + {} tilesets loaded",
+            layers.len(),
+            tilesets.len()
+        );
+        Ok(Self { tilesets, layers })
+    }
+}