def clamp_edges(edge_list, camera):
clamped_edges = []
for edge in edge_list:
edge = limit_edge_to_screen(edge, camera.resolution)
if edge != None:
clamped_edges.append(edge)
return clamped_edges
def test_invisible_edge_is_none(self):
from engine.Mesh import Edge
from engine.render.world_screen_space_converter import limit_edge_to_screen
edge = Edge((-50.0, 20.0), (20.0, -30.0))
limited = limit_edge_to_screen(edge, (100, 100))
self.assertIsNone(limited)
def test_fully_visible(self):
from engine.Mesh import Edge
from engine.render.world_screen_space_converter import limit_edge_to_screen
edge = Edge((5.0, 50.0), (20.0, 20.0))
limited = limit_edge_to_screen(edge, (100, 100))
self.assertEqual(limited.A, (5.0, 50.0))
self.assertEqual(limited.B, (20.0, 20.0))
def test_bottom_edge_inverted(self):
from engine.Mesh import Edge
from engine.render.world_screen_space_converter import limit_edge_to_screen
edge = Edge((60, 80), (20, 120))
limited = limit_edge_to_screen(edge, (100, 100))
self.assertEqual(limited.A, (60.0, 80.0))
self.assertEqual(limited.B, (40.0, 100.0))
def test_right_edge_inverted(self):
from engine.Mesh import Edge
from engine.render.world_screen_space_converter import limit_edge_to_screen
edge = Edge((120, 60), (80, 20))
limited = limit_edge_to_screen(edge, (100, 100))
self.assertEqual(limited.A, (100.0, 40.0))
self.assertEqual(limited.B, (80.0, 20.0))
def test_edge_across_screen(self):
from engine.Mesh import Edge
from engine.render.world_screen_space_converter import limit_edge_to_screen
edge = Edge((-50.0, 20.0), (150.0, 80.0))
limited = limit_edge_to_screen(edge, (100, 100))
self.assertEqual(limited.A, (0.0, 35.0))
self.assertEqual(limited.B, (100.0, 65.0))