From 60c1ac2ca3e47d1074838b2752694b3026f3bcfd Mon Sep 17 00:00:00 2001
From: = <bryce@brycecovertoperations.com>
Date: Fri, 12 Sep 2014 17:54:57 -0700
Subject: [PATCH] added a spike for scripting using macros.

---
 desktop/src-common/advent/action_test.clj | 93 +++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 desktop/src-common/advent/action_test.clj

diff --git a/desktop/src-common/advent/action_test.clj b/desktop/src-common/advent/action_test.clj
new file mode 100644
index 00000000..0abf0427
--- /dev/null
+++ b/desktop/src-common/advent/action_test.clj
@@ -0,0 +1,93 @@
+(ns advent.action-test)
+
+(defprotocol IAction
+  (begin [this state])
+  (done? [this state])
+  (continue [this state]))
+
+
+(defmacro do-actions [name & forms]
+  `(vector ~@(for [form forms]
+               `(fn [~name]
+                 ~form))))
+
+(defn walk-to [who & targets ]
+  (for [[target-x target-y] targets]
+    (fn [state]
+     (reify
+       IAction
+       (begin [this state] (println "Starting Walking") state)
+       (continue [this {:keys [x y] :as state}]
+         (println "Continue Walking from" x y)
+         (Thread/sleep 500)
+         (assoc state :x (inc x) :y (inc y)))
+       (done? [this {:keys [x y]} ]
+         (and (= x target-x)
+              (= y target-y)))))))
+
+(defn talk [who text]
+  (reify
+    IAction
+    (begin [this state]
+      (println "Speaking:" text)
+      (assoc state :time 0))
+    (continue [this state]
+      (Thread/sleep 200)
+      (assoc state :time (inc (:time state))))
+    (done? [this {:keys [time]}]
+      (< 3 time))))
+
+(defn give-item [item]
+  (reify
+    IAction
+    (begin [this state]
+      (println "Receiving item:" item)
+      (update-in state [:items] #(conj % item)))
+    (continue [this state]
+      state)
+    (done? [this state]
+      true)))
+
+
+(defn walk-to [who & targets ]
+  (for [[target-x target-y] targets]
+    (fn [state]
+     (reify
+       IAction
+       (begin [this state] (println "Starting Walking to" target-x target-y) state)
+       (continue [this {:keys [x y] :as state}]
+         (println "Continue Walking from" x y)
+         (Thread/sleep 500)
+         (assoc state :x (inc x) :y (inc y)))
+       (done? [this {:keys [x y]} ]
+         (and (>= x target-x)
+              (>= y target-y)))))))
+
+(defn get-script []
+  (let [random-loc (+ 3 (rand-int 10))]
+    (do-actions state
+                (if (= 1 (rand-int 2))
+                  (give-item :gold)
+                  (give-item :candy))
+                (walk-to :ego [3 3] [random-loc random-loc] )
+                (if ((:items state) :gold)
+                  (talk :ego "I have enough money to buy something")
+                  (talk :ego "I'm broke.")))))
+
+(defn test-run []
+  (let [state {:x 0 :y 0 :time 0 :items #{}}
+        actions (get-script)]
+    (loop [actions actions
+           state state
+           started? false]
+      (when (seq actions)
+        (let [step ((first actions) state)]
+          (if (sequential? step)
+            (recur (concat step (rest actions)) state false)
+            (let [state (if started?
+                          state
+                          (begin step state))
+                  state (continue step state)]
+              (if (done? step state)
+                (recur (rest actions) state false)
+                (recur actions state true)))))))))