def test_line_point_intersect_keys():
topline = Line(Position(5, 1), Position(12, 1))
botline = Line(Position(1, 3), Position(8, 3))
pov = Particle(Position(4, 9))
w = _world().but(walls=[Wall(topline), Wall(botline)], player=pov)
isects = line_point_collection(w.player.pos, w.walls)
assert set(isects.keys()) == set([topline, botline])
def test_line_point_intersect_types():
topline = Line(Position(5, 1), Position(12, 1))
botline = Line(Position(1, 3), Position(8, 3))
pov = Particle(Position(4, 9))
w = _world().but(walls=[Wall(topline), Wall(botline)], player=pov)
isects = line_point_collection(w.player.pos, w.walls)
for k, v in isects.items():
assert isinstance(k, Line)
for pos in v:
assert isinstance(pos, Position)
def test_lines_intersecting():
l1 = linepts(1, 1, 2, 3)
l2 = linepts(1, 3, 2, 1)
pov = Position(3, 2)
w = _world().but(walls=[Wall(l1), Wall(l2)], player=Particle(pov))
col = line_point_collection(w.player.pos, w.walls)
assert len(col) == 2
assert Position(x=1.8, y=2.6) in col[l1]
assert Position(x=1.8, y=1.4) in col[l2]
assert Position(1.5, 2) in col[l2]
assert len(col[l1]) == 4
assert len(col[l2]) == 4
def test_line_point_intersect():
topline = Line(Position(5, 1), Position(12, 1))
botline = Line(Position(1, 3), Position(8, 3))
pov = Particle(Position(4, 9))
w = _world().but(walls=[Wall(topline), Wall(botline)], player=pov)
isects = line_point_collection(w.player.pos, w.walls)
assert Position(9.3333333333333333, 1) in isects[topline]
assert Position(4.75, 3) in isects[botline]
def _world():
SIZE = Position(640, 480)
player = Particle(Position(SIZE.x // 2, SIZE.y // 2))
ghosts = []
bnw = Position(0, 0)
bne = Position(SIZE.x, 0)
bsw = Position(0, SIZE.y)
bse = Position(SIZE.x, SIZE.y)
boundary = [
Wall(Line(bnw, bne)),
Wall(Line(bne, bse)),
Wall(Line(bse, bsw)),
Wall(Line(bsw, bnw)),
]
world = World(SIZE, player, ghosts, boundary, [], [])
return world
def test_line_segments_visible():
topline = Line(Position(5, 1), Position(12, 1))
botline = Line(Position(1, 3), Position(8, 3))
pov = Particle(Position(4, 9))
w = _world().but(walls=[Wall(topline), Wall(botline)], player=pov)
linesegments = list(line_segments(w.player.pos, w.walls, visible=True))
for l in linesegments:
assert isinstance(l, Line)
for p in l:
assert isinstance(p, Position)
topline2 = Line(Position(9.3333333333333333, 1), Position(12, 1))
botline1 = Line(Position(1, 3), Position(4.75, 3))
botline2 = Line(Position(4.75, 3), Position(8, 3))
assert set([topline2, botline1, botline2]) == set(linesegments)
def linepts(x1, y1, x2, y2):
return Line(Position(x1, y1), Position(x2, y2))