From 538008cbdc8ec8a873e62a8b991201fda5762d63 Mon Sep 17 00:00:00 2001
From: Guillaume Pasquet <dev@etenil.net>
Date: Thu, 21 Nov 2019 19:54:38 +0000
Subject: Fog of war! Inneficient and buggy but works

---
 src/state.rs | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

(limited to 'src/state.rs')

diff --git a/src/state.rs b/src/state.rs
index 9939226..805e9e9 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -6,6 +6,8 @@ use crate::entities::{Character, Entity, Player};
 use crate::tiling::{tile_to_str, Tile, TileGrid, TileType};
 use crate::world::{apply_movement, Dungeon, Generatable, Level, Movement};
 
+const PLAYER_SIGHT: usize = 5;
+
 pub struct State {
     pub player: Character,
     dungeon: Dungeon,
@@ -48,7 +50,7 @@ impl State {
     }
 
     fn render_entity(&self, entity: &dyn Entity) {
-        if !entity.is_dirty() {
+        if !entity.is_visible() || !entity.is_dirty() {
             return;
         }
         let dirt = entity.previous_location();
@@ -71,8 +73,13 @@ impl State {
         }
     }
 
-    pub fn render_player(&self) {
-        self.render_entity(&self.player)
+    pub fn render_player(&mut self) {
+        self.render_entity(&self.player);
+
+        self.grid
+            .as_mut()
+            .unwrap()
+            .clear_fog_of_war(self.player.location(), PLAYER_SIGHT);
     }
 
     fn ui_state_position(&self) -> MoveTo {
-- 
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