Remove unused pos arg.

[tabakrolletjie.git] / tabakrolletjie / rays.py

diff --git a/tabakrolletjie/rays.py b/tabakrolletjie/rays.py
index 7c8b5beab712c0fe756afbb7645afc92fc3b563c..a475d8fb27bb6c680a90555cad7dc2a4f6043954 100644 (file)
--- a/tabakrolletjie/rays.py
+++ b/tabakrolletjie/rays.py
@@ -12,7 +12,7 @@ from .constants import SCREEN_SIZE
 from .utils import debug_timer
 
 
-def screen_rays(pos):
+def screen_rays():
     """ An iterable that returns ordered rays from pos to the edge of the
         screen, starting with the edge point (0, 0) and continuing clockwise
         in pymunk coordinates.
@@ -40,7 +40,7 @@ def calculate_ray_polys(space, position, light_filter):
     vertices = [position]
     start, end = None, None
     ray_polys = []
-    for ray in screen_rays(position):
+    for ray in screen_rays():
         info = space.segment_query_first(position, ray, 1, light_filter)
         point = ray if info is None else info.point
         vertices.append(point)
@@ -88,6 +88,8 @@ class RayPolyManager(object):
         self._start = None  # normal vector in direction of start angle limit
         self._end = None  # normal vector in direction of end angle limit
         self._set_angle_limits(direction, spread)
+        if direction:
+            self.direction = direction  # Update direction
         self._max_radius = None  # maximum radius in pixels
         self._min_radius = None  # minimum radius in pixels
         self._set_radius_limits(radius_limits)
@@ -128,7 +130,7 @@ class RayPolyManager(object):
         self._min_radius = value or 0.0
 
     def reaches(self, position):
-        distance = self.position.get_distance(self.position)
+        distance = self.position.get_distance(position)
         return (self._min_radius <= distance <= self._max_radius)
 
     def _set_radius_limits(self, radius_limits):
@@ -146,6 +148,8 @@ class RayPolyManager(object):
 
     @property
     def direction(self):
+        if self._direction is None:
+            return 0
         return self._direction.angle_degrees
 
     @direction.setter
@@ -156,6 +160,12 @@ class RayPolyManager(object):
         self._end = self._direction.rotated(-spread)
         self._poly_cache = None
 
+    @property
+    def spread(self):
+        if not self._direction:
+            return 2 * math.pi
+        return math.fabs(self._start.get_angle_between(self._end))
+
     def _set_angle_limits(self, direction, spread):
         if direction is None or spread is None:
             self._direction = None