From 9b4ed6a78343aca0bdcfb347730142458c911e3f Mon Sep 17 00:00:00 2001
From: Simon Cross <hodgestar@gmail.com>
Date: Sat, 5 Mar 2016 00:42:41 +0200
Subject: [PATCH] Serum assembly.

---
 koperkapel/serums.py | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/koperkapel/serums.py b/koperkapel/serums.py
index 951d002..c2a52bb 100644
--- a/koperkapel/serums.py
+++ b/koperkapel/serums.py
@@ -1,8 +1,17 @@
 """ Tools for creating serum actors. """
 
+from pgzero.loaders import images
+from pygame.constants import BLEND_RGBA_MULT
+from .actors.surf import SurfActor
 
 SERUMS = ["smart", "fast", "strong"]
 
+SERUM_TILENAME_MAP = {
+    "smart": "intelligence",
+    "fast": "speed",
+    "strong": "strength",
+}
+
 SERUM_OVERLAY_COLORS = {
     "smart": (0, 0, 255, 255),  # blue
     "fast": (0, 255, 0, 255),  # green
@@ -16,3 +25,22 @@ def roach_serum_color(roach):
         if getattr(roach, serum_name):
             return SERUM_OVERLAY_COLORS[serum_name]
     return SERUM_OVERLAY_COLORS["none"]
+
+
+class SerumFactory:
+    def __init__(self, suffix):
+        self.suffix = suffix
+
+    def assemble(self, name):
+        assert name in SERUMS
+        puddle = images.load("serum%s/serum" % (self.suffix,))
+        serum_icon = images.load("serum%s/%s" % (
+            self.suffix, SERUM_TILENAME_MAP[name],))
+        frame = puddle.copy()
+        frame.fill(SERUM_OVERLAY_COLORS[name], None, BLEND_RGBA_MULT)
+        frame.blit(serum_icon, (0, 0))
+        return SurfActor(frame)
+
+
+default_serums = SerumFactory("")
+big_serums = SerumFactory("_big")
-- 
2.34.1