4 files changed, 12 insertions, 12 deletions
diff --git a/src/world/agent.js b/src/world/agent.js
index d91481b..576ebc4 100644
--- a/src/world/agent.js
+++ b/src/world/agent.js
@@ -4,8 +4,8 @@ import { sense_read } from './sense.js';
 import { proposal_merge } from './proposal.js';
 
 
-export function agent_decide(lattice, agent, senses, actions) {
-  const inputs = senses.map(s => sense_read(lattice, agent, s)).flat();
+export function agent_decide(world, agent, senses, actions) {
+  const inputs = senses.map(s => sense_read(world, agent, s)).flat();
   const [result, state] = agent.net.compute(inputs, agent.state);
 
   const new_agent = { ...agent, state };
diff --git a/src/world/sense.js b/src/world/sense.js
index 47329b7..9b5c7d4 100644
--- a/src/world/sense.js
+++ b/src/world/sense.js
@@ -8,10 +8,10 @@
  */
 
 
-export function sense_read(lattice, agent, sense) {
-  const result = sense.read(lattice, agent);
+export function sense_read(world, agent, sense) {
+  const result = sense.read(world, agent);
   if (result.length !== sense.size) {
     throw new Error(`Expected result of size ${sense.size}, but got ${result.length} instead.`);
   }
-  return sense.read(lattice, agent);
+  return result;
 }
diff --git a/src/world/sense.test.js b/src/world/sense.test.js
index 1ef7bce..27ee2b5 100644
--- a/src/world/sense.test.js
+++ b/src/world/sense.test.js
@@ -4,30 +4,30 @@ import { sense_read } from './sense.js';
 test("basic sense works", () => {
   const flag_sense = {
     size: 1,
-    read: (lattice, agent) => {
+    read: (world, agent) => {
       const {x, y} = agent;
-      return [ lattice[y-1][x].type === 'flag' ? 1.0 : 0.0 ]
+      return [ world.lattice[y-1][x].type === 'flag' ? 1.0 : 0.0 ]
     },
   };
 
   const lattice = [[ { type: 'flag' } ]];
   const agent = { x: 0, y: 1 };
 
-  expect(sense_read(lattice, agent, flag_sense)).toEqual([1.0]);
+  expect(sense_read({lattice}, agent, flag_sense)).toEqual([1.0]);
 });
 
 
 test("senses throw if the size is incorrect", () => {
   const flag_sense = {
     size: 2,
-    read: (lattice, agent) => {
+    read: (world, agent) => {
       const {x, y} = agent;
-      return [ lattice[y-1][x].type === 'flag' ? 1.0 : 0.0 ]
+      return [ world.lattice[y-1][x].type === 'flag' ? 1.0 : 0.0 ]
     },
   }
 
   const lattice = [[ { type: 'flag' } ]];
   const agent = { x: 0, y: 1 };
 
-  expect(() => sense_read(lattice, agent, flag_sense)).toThrow();
+  expect(() => sense_read({lattice}, agent, flag_sense)).toThrow();
 });
diff --git a/src/world/world.js b/src/world/world.js
index 87d0aed..e1d984d 100644
--- a/src/world/world.js
+++ b/src/world/world.js
@@ -8,7 +8,7 @@ export function world_update(world, postprocess=[]) {
   const intermediate_lattice = lattice_apply(world.lattice, lattice_props);
 
   const decisions = world.agents
-    .map(a => agent_decide(world.lattice, agent, world.senses, world.actions))
+    .map(a => agent_decide(world, agent, world.senses, world.actions))
     .reduce(
       ([agents, props], [agent, prop]) => [[...agents, agent], [...props, prop]],
       [[], []]