1 files changed, 41 insertions, 0 deletions
diff --git a/src/game/map.rs b/src/game/map.rs
new file mode 100644
index 0000000..420e256
--- /dev/null
+++ b/src/game/map.rs
@@ -0,0 +1,41 @@
+use glam::IVec2;
+use std::ops::{Index, IndexMut};
+
+pub struct Map {
+    pub cells: Vec<Option<u32>>,
+    pub size: IVec2,
+}
+impl Map {
+    pub fn new(width: usize, height: usize) -> Self {
+        Self {
+            cells: vec![None; width * height],
+            size: IVec2::new(width as i32, height as i32),
+        }
+    }
+    pub fn index(&self, v: IVec2) -> usize {
+        let i = v.x.rem_euclid(self.size.x as i32)
+            + v.y.rem_euclid(self.size.y as i32) * self.size.x as i32;
+        i as usize
+    }
+    pub fn clear_player(&mut self, p: u32) {
+        self.cells.iter_mut().for_each(|c| {
+            if let Some(cm) = c {
+                if *cm == p {
+                    *c = None;
+                }
+            }
+        });
+    }
+}
+impl Index<IVec2> for Map {
+    type Output = Option<u32>;
+    fn index(&self, index: IVec2) -> &Self::Output {
+        &self.cells[self.index(index)]
+    }
+}
+impl IndexMut<IVec2> for Map {
+    fn index_mut(&mut self, index: IVec2) -> &mut Self::Output {
+        let i = self.index(index);
+        &mut self.cells[i]
+    }
+}