implement move_backward and turn_left

1 files changed, 41 insertions, 1 deletions

diff --git a/src/simulation/actions.js b/src/simulation/actions.js
index 40545c5..a925867 100644
--- a/src/simulation/actions.js
+++ b/src/simulation/actions.js
@@ -22,7 +22,47 @@ const move_forward = {
   },
 };
 
+const move_backward = {
+  size: 1,
+  propose: (agent, head) => {
+    if (head[0] > threshold) {
+      const dx = { n: 0, e: 1, s: 0, w: -1 }[agent.flags.orientation];
+      const dy = { n: -1, e: 0, s: 1, w: 0 }[agent.flags.orientation];
+      return [{
+        agent_changes: [{
+          agent_id: agent.id,
+          x: agent.x - dx,
+          y: agent.y - dy,
+        }],
+      }];
+    } else {
+      return [];
+    }
+  },
+};
+
+
+const turn_left = {
+  size: 1,
+  propose: (agent, head) => {
+    if (head[0] > threshold) {
+      const orientation = { n: 'w', e: 'n', s: 'e', w: 's' }[agent.flags.orientation];
+      return [{
+        agent_changes: [{
+          agent_id: agent.id,
+          flags: { orientation },
+        }],
+      }];
+    } else {
+      return [];
+    }
+  },
+};
+
+
+
+
 
 export const actions = [
-  move_forward,
+  move_forward, move_backward, turn_left,
 ];