class Entity(object):
def __init__(self, polygon=None, heading=None, position=None):
self.body = Polygon(polygon)
self.heading = heading
self.position = position
self.heading = random.randint(0, 360)
self.position = Vector([0, 0])
self.velocity = (0, 0)
self.rotation = 0
def translate(self, vector):
self.position += vector
def rotate(self, angle_degrees):
self.heading += angle_degrees
self.heading %= 360
def update(self):
self.translate(self.velocity)
self.rotate(self.rotation)
self.body.project(heading=self.heading, position=self.position)
def intersects(self, other):
if isinstance(other, Entity):
if self.position.distance(
other.position) < self.body.radius + other.body.radius:
return True
else:
if self.position.distance(
other.position) < self.body.radius + other.radius:
return True
return False
def __init__(self, polygon=None, heading=None, position=None):
self.body = Polygon(polygon)
self.heading = heading
self.position = position
self.heading = random.randint(0, 360)
self.position = Vector([0, 0])
self.velocity = (0, 0)
self.rotation = 0
def testPolygonNormal(self):
p1 = Point3D(0, 0, 0)
p2 = Point3D(1, 0, 0)
p3 = Point3D(1, 1, 0)
p4 = Point3D(0, 1, 0)
p5 = Point3D(1, 0, -1)
p6 = Point3D(0, 0, -1)
polygon1 = Polygon('', [p1, p2, p3, p4])
polygon2 = Polygon('', [p1, p2, p5, p6])
result = polygon1.getNormalVector()
self.assertEqual(result.x, 0)
self.assertEqual(result.y, 0)
self.assertEqual(result.z, 1)
result = polygon2.getNormalVector()
self.assertEqual(result.x, 0)
self.assertEqual(result.y, 1)
self.assertEqual(result.z, 0)
def testPolygonFacesPoint(self):
p1 = Point3D(0, 0, 0)
p2 = Point3D(1, 0, 0)
p3 = Point3D(1, 1, 0)
p4 = Point3D(0, 1, 0)
p5 = Point3D(1, 0, 1)
p6 = Point3D(0, 0, 1)
p7 = Point3D(0, 1, 1)
p8 = Point3D(0, 1, 0)
polygon1 = Polygon('', [p1, p2, p3, p4])
polygon2 = Polygon('', [p1, p2, p5, p6])
polygon3 = Polygon('', [p1, p6, p7, p8])
t1 = Point3D(0, 0, 1)
t2 = Point3D(0, 0, -1)
t3 = Point3D(0.5, 0.5, 0)
t4 = Point3D(0, -1, 0)
t5 = Point3D(-1, 0, 0)
result = polygon1.polygonFacesPoint(t1)
self.assertTrue(result)
result = polygon1.polygonFacesPoint(t2)
self.assertFalse(result)
result = polygon1.polygonFacesPoint(t3)
self.assertTrue(result)
result = polygon2.polygonFacesPoint(t4)
self.assertTrue(result)
result = polygon3.polygonFacesPoint(t5)
self.assertTrue(result)
