Merge branch 'master' of ctpug.org.za:tabakrolletjie

[tabakrolletjie.git] / tabakrolletjie / lights.py

diff --git a/tabakrolletjie/lights.py b/tabakrolletjie/lights.py
index b2e081201ae27bf9113146ba4a3106389a4bda44..1eaba7c8e92ee3804026383fdc3ece6c06dfe203 100644 (file)
--- a/tabakrolletjie/lights.py
+++ b/tabakrolletjie/lights.py
@@ -1,6 +1,8 @@
 """ May it be a light for you in dark places, when all other lights go out.
 """
 
+import math
+
 import pymunk
 import pymunk.pygame_util
 import pygame.display
@@ -83,6 +85,9 @@ class LightManager(object):
             if light.on and light.ray_manager.reaches(shape.body.position)
         ]
 
+    def total_power_usage(self):
+        return sum(light.power_usage() for light in self._lights)
+
     def render_light(self, surface):
         for light in self._lights:
             light.render_light(surface)
@@ -234,6 +239,16 @@ class BaseLight(object):
         rx, ry = self.ray_manager.pygame_position(surface)
         surface.blit(self.fitting_image(), (rx - 24, ry - 24), None, 0)
 
+    def power_usage(self):
+        if not self.on:
+            return 0.0
+        area = math.pi * (self.ray_manager.max_radius ** 2)  # radius
+        area = area * (self.ray_manager.spread / (2 * math.pi))  # spread
+        return 5 * area * self.intensity
+
+    def base_damage(self):
+        return 5 * self.intensity
+
     def toggle(self):
         self.colour_pos += 1
         if self.colour_pos >= len(self.colour_cycle):