X-Git-Url: https://git.ctpug.org.za/?a=blobdiff_plain;f=koperkapel%2Fworld.py;h=1558917b56628ec339e2c37d8ec5fa777b1688c4;hb=14578588930d015178af547be9a15896d75229c6;hp=8a4af23d1407a08c32c02aef57eb9d493deed882;hpb=55ff545e2629cc15b03ec582ee4c1edf1244432d;p=koperkapel.git

diff --git a/koperkapel/world.py b/koperkapel/world.py
index 8a4af23..1558917 100644
--- a/koperkapel/world.py
+++ b/koperkapel/world.py
@@ -1,5 +1,8 @@
 """ World and player state. """
 
+from .scenes.base import WorldEvent
+from .roaches import build_roach
+
 
 class World:
     """ World and player state. """
@@ -18,37 +21,140 @@ class World:
     def _build_initial_state(self):
         state = {}
         state["roaches"] = [
-            self._build_roach("roachel", intelligence=3),
-            self._build_roach("roeginald", strength=3),
-            self._build_roach("roichard", quickness=3),
+            build_roach(self, "roupert"),
+        ]
+        state["serums"] = [
+            "smart", "strong", "fast",
         ]
+        state["vehicles"] = {
+            "current": "walking",
+            "walking": {
+                "seating": [
+                    "roachel", None, "roeginald",
+                    None, None, None,
+                ]
+            },
+            "robot": {"seating": []},
+            "roomba": {"seating": []},
+            "quadcopter": {"seating": []},
+        }
+        state["weapons"] = {
+            "current": "spit",
+        }
         state["level"] = {
             "name": "level1",
         }
         return state
 
-    def _build_roach(self, name, **kw):
-        attributes = {
-            "intelligence": 1,
-            "strength": 1,
-            "quickness": 1,
-            "health": 5,
-        }
-        attributes.update(kw)
-        return {
-            "name": name,
-            "attributes": attributes,
-        }
+    def _get_obj(self, name):
+        parts = name.split(".")
+        obj = self._state
+        for p in parts[:-1]:
+            if isinstance(obj, dict):
+                obj = obj[p]
+            elif isinstance(obj, list):
+                obj = obj[int(p)]
+            else:
+                raise KeyError("%r not found in world" % (name,))
+        return obj, parts[-1]
 
-    def _apply_set(self, updates):
+    def _apply_set(self, action, updates):
         for name, value in updates.items():
-            parts = name.split(".")
-            obj = self._state
-            for p in parts[:-1]:
-                obj = obj[p]
-            obj[parts[-1]] = value
+            obj, key = self._get_obj(name)
+            obj[key] = value
 
-    def apply_event(self, action, *args, **kw):
-        if action == "set":
-            return self._apply_set(*args, **kw)
+    def _apply_append(self, action, updates):
+        for name, value in updates.items():
+            obj, key = self._get_obj(name)
+            obj.append(value)
+
+    def _apply_reset(self, action):
+        self._state = self._build_initial_state()
+
+    def _apply_unknown(self, action, *args, **kw):
         raise ValueError("Unknown world event action: %r" % (action,))
+
+    def proxy(self):
+        return WorldDictProxy(self._state)
+
+    def apply_event(self, action, *args, **kw):
+        handler = getattr(self, "_apply_%s" % (action,))
+        return handler(action, *args, **kw)
+
+
+def _maybe_subproxy(proxy, name, value):
+    """ Return a sub world proxy if appropriate. """
+    if isinstance(value, dict):
+        prefix = "%s%s." % (proxy._prefix, name)
+        return WorldDictProxy(value, _prefix=prefix, _top=proxy._top)
+    elif isinstance(value, list):
+        prefix = "%s%s." % (proxy._prefix, name)
+        return WorldListProxy(value, _prefix=prefix, _top=proxy._top)
+    return value
+
+
+class WorldBaseProxy:
+    """ Base for world proxies. """
+
+    def __init__(self, state, _prefix='', _top=None):
+        if _top is None:
+            _top = self
+            _events = []
+        else:
+            _events = None
+        self.__dict__.update({
+            "_state": state,
+            "_prefix": _prefix,
+            "_top": _top,
+            "_events": _events,
+        })
+
+    def _record_change(self, fullname, value, action="set"):
+        self._events.append(WorldEvent(action, {
+            fullname: value
+        }))
+
+    def pop_events(self):
+        events, self._events = self._events, []
+        return events
+
+
+class WorldDictProxy(WorldBaseProxy):
+    """ World dictionary proxy that records changes and produces events. """
+
+    def __setattr__(self, name, value):
+        self._top._record_change("%s%s" % (self._prefix, name), value)
+
+    def __getattr__(self, name):
+        # return None for attributes that don't exist
+        value = self._state.get(name)
+        return _maybe_subproxy(self, name, value)
+
+    def __setitem__(self, name, value):
+        return self.__setattr__(name, value)
+
+    def __getitem__(self, name):
+        return self.__getattr__(name)
+
+    def items(self):
+        return (
+            (k, _maybe_subproxy(self, k, v)) for k, v in self._state.items())
+
+
+class WorldListProxy(WorldBaseProxy):
+    """ World list proxy that records changes and produces events. """
+
+    def __setitem__(self, index, value):
+        self._top._record_change("%s%s" % (self._prefix, index), value)
+
+    def __getitem__(self, index):
+        return _maybe_subproxy(self, index, self._state[index])
+
+    def __len__(self):
+        return len(self._state)
+
+    def __bool__(self):
+        return bool(self._state)
+
+    def append(self, value):
+        self._top._record_change(self._prefix, value, action="append")