1 files changed, 4 insertions, 2 deletions
diff --git a/src/simulation/senses.js b/src/simulation/senses.js
index ca07442..9d50a83 100644
--- a/src/simulation/senses.js
+++ b/src/simulation/senses.js
@@ -152,7 +152,8 @@ function see_agent(viewer, agent) {
 const see = {
   size: VIS_WIDTH * VIS_HEIGHT,
   read: (world, agent) => {
-    const vision = [...Array(VIS_WIDTH*VIS_HEIGHT).keys()]
+    const indices = [...Array(VIS_WIDTH*VIS_HEIGHT).keys()]
+    const vision = indices
       .map(idx => {
         const [x, y] = vision_idx_to_world_pos(world, agent, idx);
         return see_cell(world, x, y);
@@ -160,7 +161,8 @@ const see = {
     const result = world.agents.reduce(
       (acc, a) => {
         const idx = world_pos_to_vision_idx(world, agent, a.x, a.y);
-        if (idx < 0 || idx > VIS_WIDTH*VIS_HEIGHT) {
+
+        if (idx < 0 || idx >= VIS_WIDTH*VIS_HEIGHT) {
           return acc;
         } else {
           acc.splice(idx, 1, see_agent(agent, a));