mostly correct power usage in tooltips

[tabakrolletjie.git] / tabakrolletjie / lights.py

diff --git a/tabakrolletjie/lights.py b/tabakrolletjie/lights.py
index 00f4c85b6e6f767fa761f920afc31ba2db6e5fb3..c2e12e6615b3460b2ef839793fdc6ff68b452e65 100644 (file)
--- a/tabakrolletjie/lights.py
+++ b/tabakrolletjie/lights.py
@@ -13,7 +13,7 @@ import pygame.transform
 
 from .constants import (
     LIGHT_CATEGORY, FITTINGS_CATEGORY, OBSTACLE_CATEGORY, TURNIP_CATEGORY,
-    COLOURS)
+    COLOURS, FPS, NIGHT_HOURS_PER_TICK)
 from .rays import RayPolyManager
 from .utils import DetailedTimer
 from .loader import loader
@@ -148,6 +148,12 @@ def light_info(light_config):
     return cls.get_info(light_config)
 
 
+def light_name(light_config):
+    """Find formatted light name. """
+    cls = BaseLight.find_cls(light_config["type"])
+    return cls.NAME
+
+
 class BaseLight(object):
     """ Common light functionality. """
 
@@ -156,6 +162,7 @@ class BaseLight(object):
     FITTING_IMG = None
     FITTING_RADIUS = 24.0
     BASE_COST = 0
+    NAME = "light"
 
     # cached surfaces
     _surface_cache = {}
@@ -223,7 +230,16 @@ class BaseLight(object):
 
     @classmethod
     def get_info(cls, config):
-        return ["intensity: %g" % config["intensity"]]
+        spread = math.radians(config.get("spread", 360))
+        rl = config.get("radius_limits", (0, 50.0))
+        intensity = config["intensity"]
+        power_usage = (cls._power_usage(rl[0], rl[1], spread, intensity)
+            / (FPS * NIGHT_HOURS_PER_TICK))
+        return [
+            "power usage: %d/h" % power_usage,
+            "",
+            "intensity: %g" % intensity,
+        ]
 
     def add(self, space):
         if self.body.space is not None:
@@ -303,12 +319,18 @@ class BaseLight(object):
         rx, ry = self.ray_manager.pygame_position(surface)
         surface.blit(self.fitting_image(), (rx - self.FITTING_RADIUS, ry - self.FITTING_RADIUS), None, 0)
 
+    @staticmethod
+    def _power_usage(min_radius, max_radius, spread, intensity):
+        area = math.pi * (max_radius ** 2 - min_radius ** 2)  # radius
+        area = area * (spread / (2 * math.pi))  # spread
+        return 5 * area * intensity / 6400  # 80x80 unit area
+
     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 / 6400  # 80x80 unit area
+        rm = self.ray_manager
+        power_usage = self._power_usage(rm.min_radius, rm.max_radius, rm.spread, self.intensity)
+        return power_usage
 
     def base_damage(self):
         return 10 * self.intensity
@@ -335,6 +357,7 @@ class Lamp(BaseLight):
 
     FITTING_IMG = "lamp.png"
     BASE_COST = 1
+    NAME = "lamp"
 
 
 class PulsatingLamp(BaseLight):
@@ -345,6 +368,7 @@ class PulsatingLamp(BaseLight):
     DEFAULT_INTENSITY_RANGE = (0.0, 0.9)
     DEFAULT_INTENSITY_VELOCITY = 0.1
     BASE_COST = 3
+    NAME = "pulsating lamp"
 
     def __init__(self, **kw):
         self.pulse_range = kw.pop("pulse_range", self.DEFAULT_PULSE_RANGE)
@@ -393,11 +417,19 @@ class PulsatingLamp(BaseLight):
 
     @classmethod
     def get_info(cls, config):
+        spread = math.radians(config.get("spread", 360))
+        rl = config.get("radius_limits", (0, 50.0))
         pr = config.get("pulse_range", cls.DEFAULT_PULSE_RANGE)
         pv = config.get("pulse_velocity", cls.DEFAULT_PULSE_VELOCITY)
         ir = config.get("intensity_range", cls.DEFAULT_INTENSITY_RANGE)
         iv = config.get("intensity_velocity", cls.DEFAULT_INTENSITY_VELOCITY)
+        min_power = (cls._power_usage(rl[0], pr[0], spread, ir[0])
+            / (FPS * NIGHT_HOURS_PER_TICK))
+        max_power = (cls._power_usage(rl[0], pr[1], spread, ir[1])
+            / (FPS * NIGHT_HOURS_PER_TICK))
         return [
+            "power usage: %d/h - %d/h" % (min_power, max_power),
+            "",
             "intensity: %g - %g, velocity %g" % (ir[0], ir[1], iv),
             "pulse: %d - %d, velocity %g" % (pr[0], pr[1], pv),
         ]
@@ -407,6 +439,7 @@ class SpotLight(BaseLight):
 
     FITTING_IMG = "spotlight.png"
     BASE_COST = 5
+    NAME = "spotlight"
 
     def __init__(self, **kw):
         self.angular_velocity = kw.pop("angular_velocity", None)