# HG changeset patch
# User Jeremy Thurgood <firxen@gmail.com>
# Date 1336301292 -7200
# Node ID 826b447313238e4bebec4f73a821ae7409d131db
# Parent  dd9046d0680c748525f81bf477c749be4d23bed6
Start of basic lab implementation.

diff -r dd9046d0680c -r 826b44731323 gamelib/lab.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gamelib/lab.py	Sun May 06 12:48:12 2012 +0200
@@ -0,0 +1,70 @@
+from gamelib import research, products
+
+
+def is_subclass(item, superclass):
+    return (
+        isinstance(item, type)
+        and issubclass(item, superclass)
+        and not item is superclass)
+
+
+def list_products():
+    for item in dir(products):
+        # Ugh!
+        item = getattr(products, item)
+        if is_subclass(item, products.Product):
+            yield item
+
+
+def list_research():
+    for item in dir(research):
+        # Ugh!
+        item = getattr(research, item)
+        if is_subclass(item, research.ResearchArea):
+            yield item
+
+
+class Lab(object):
+    def __init__(self):
+        self.science = []
+
+    def spend_points(self, things, basic_research):
+        for thing in things:
+            assert thing in self.science
+            thing.spend_points(1)
+            if isinstance(thing, research.ResearchArea):
+                self.find_new_product(thing)
+        self.try_basic_research(basic_research)
+
+    def _get_science(self, science_class):
+        for science in self.science:
+            if isinstance(science, science_class):
+                return science
+        return None
+
+    def _meet_requirements(self, science_class):
+        for science, level in science_class.PREREQUISITES:
+            my_science = self._get_science(science)
+            if my_science is None:
+                return False
+            if my_science.points < level:
+                return False
+        return True
+
+    def find_new_products(self, research_area):
+        available_products = []
+        for product_class in list_products():
+            if self._get_science(product_class):
+                continue
+            if self._meet_requirements(product_class):
+                available_products.append(product_class)
+        return available_products
+
+    def find_new_research(self, basic_research):
+        available_research = []
+        for research_class in list_research():
+            if self._get_science(research_class):
+                continue
+            if self._meet_requirements(research_class):
+                available_research.append(research_class)
+        return available_research
diff -r dd9046d0680c -r 826b44731323 gamelib/products.py
--- a/gamelib/products.py	Sun May 06 12:36:34 2012 +0200
+++ b/gamelib/products.py	Sun May 06 12:48:12 2012 +0200
@@ -4,6 +4,7 @@
 class Product(object):
     NAME = None
     PREREQUISITES = ()
+    ACQUISITION_CHANCE = 0.8
 
     def __init__(self):
         self.points = 0