def __init__(self, size: int = 6, raycast_size: int = 17375000):
super().__init__(size)
ray = Edge(Vec2(), Vec2(raycast_size, 0))
self.raycast_size = raycast_size
self.rays = [ray]
for i in range(1, 8):
ray = Edge(Vec2(), Vec2(raycast_size, 0).rotate((360 / 8) * i))
self.rays.append(ray)
self.ray_color = (123, 0, 123)
def set_follow(self, e: PhysicObject):
"""
Change camera to entity and follow it
:param e:
:return:
"""
self._target = e
if self._target is None:
self._last_target_pos = Vec2()
return
self._last_target_pos = e.root
self.pos = self._target.root - Vec2(self._width/2, self._height/2)
def get_collision_radius(self) -> float:
"""
Gets the radius of the collision sphere using furthest vertex.
Intersecting this sphere makes actual collision possible but not guaranteed.
Used for quickly checking if collision can occur.
:return:
"""
return self._shape.furthest_vertices.get_distance(Vec2())
def __init__(self, size=6, direction: Vec2 = Vec2(1,0)):
self.size = size
lb = Vec2(-1*size, -1*size)
lt = Vec2(-1*size, 1*size)
rb = Vec2(1*size, -1*size)
rt = Vec2(1*size, 1*size)
v = [lb, lt, rb, rt]
l1 = Edge(lb, lt)
l2 = Edge(lb, rb)
l3 = Edge(rt, rb)
l4 = Edge(rt, lt)
e = [l1, l2, l3, l4]
super().__init__(v, e, (0, 204, 0), direction)
def __init__(self,
vertices: list,
edges: list,
color: tuple,
direction: Vec2 = Vec2(1, 0)):
self.vertices = vertices # list of Vec3 assuming object root as origin
self.edges = edges # list of lines
self.color = color
self._direction = direction
def move(self, delta: float):
"""
Move the camera fitting to the given Vec3
:param delta:
:return:
"""
self._pos += self._velocity * delta
if self._velocity.length > 1.: # slow down camera over time
self._velocity.x /= 2
self._velocity.y /= 2
else:
self._velocity = Vec2()
def __init__(self, radius: float, color: tuple):
super().__init__(vertices=[], edges=[], color=color)
vertices = []
for i in range(12):
vertices.append(Vec2(radius, 0).rotate((360 / 64) * i))
self.vertices = vertices
edges = []
last_vertex = self.vertices[-1]
for i in range(len(self.vertices)):
edges.append(Edge(last_vertex, self.vertices[i]))
last_vertex = self.vertices[i]
self.edges = edges
def tick(self, delta: float, world):
"""
Updates camera position and zoom based on user input.
:param delta:
:param world:
:return:
"""
if self._target is not None: # follow the target
target_velocity = (self._target.root - self._last_target_pos)*(1/delta)
self._velocity += target_velocity
self._last_target_pos = self._target.root
self.move(delta) # make a camera move
pressed = pg.key.get_pressed()
if pressed[pg.K_w]: # move camera "up" (-y)
self._velocity += Vec2(0, -1*self._step_size*delta)
if pressed[pg.K_s]:
self._velocity += Vec2(0, self._step_size*delta)
if pressed[pg.K_a]: # move camera "left" (-x)
self._velocity += Vec2(-1*self._step_size*delta, 0)
if pressed[pg.K_d]:
self._velocity += Vec2(self._step_size*delta, 0)
def tick(self, delta: float, world):
final_force = Vec2()
for obj in world.entities:
if isinstance(obj, PhysicObject):
g = self.get_gravitational_pull(obj)
dist = 0.5 * g # distance to fall towards obj in a second
direc = obj.root - self.root
final_force += (direc.normalize() * dist)
self.velocity += final_force
self.move(delta) # move according to velocity for delta time
self.do_collision_checks(delta, world)
def world_to_camera(self, orig: Vec2, interpolation: float) -> Vec2:
"""
Convert given Vec3 world coordinates onto the camera plane
:param orig:
:param interpolation:
:return:
"""
interpol_camera_pos = self.pos + self._velocity * interpolation
camera_pos = Vec2()
camera_pos.x = orig.x - interpol_camera_pos.x
camera_pos.y = orig.y - interpol_camera_pos.y
if self._target is not None:
camera_pos -= self._target.velocity*interpolation
return camera_pos
def __init__(self, pos: Vec2, width: int, height: int, max_view_distance: int,
window: Window, world):
self._pos = pos # assumed to be top-left corner of camera
self._width = width
self._height = height
self._max_view_distance = max_view_distance
self._velocity = Vec2()
self._window = window
self._step_size = 1737.5*10
self._target: PhysicObject = None
self._last_target_pos: Vec2 = None
world.listen_for_events(self)
def camera_to_viewport(self, camera_pos: Vec2) -> Vec2:
"""
Transform from a point on the camera screen to a point on the viewport (aka computer screen window)
:param camera_pos:
:return:
>>> print(Camera(Vec2(0,0), 100, 100, Window(None, 200, 200, True)).camera_to_viewport(Vec2(50, 50)))
<100.00 100.00>
>>> print(Camera(Vec2(0,0), 100, 100, Window(None, 200, 200, True)).camera_to_viewport(Vec2(25, 75)))
<50.00 150.00>
>>> print(Camera(Vec2(0,0), 1000, 1000, Window(None, 100, 100, True)).camera_to_viewport(Vec2(4, 7)))
<0.00 1.00>
"""
scale_x = self._window.width/self.width
scale_y = self._window.height/self.height
return Vec2(round(camera_pos.x*scale_x), round(camera_pos.y*scale_y))
def __init__(self, game, bg_color: tuple = (0, 25, 51)):
self.active = True
self.time_warp = game.TIME_WARP # value to multiply passed time by
self.event_listeners = []
self._tick_rate = game.TICK_RATE # ticks per second
self._game = game
self._bg_color = bg_color
self._objects = [] # list for entities and static objs of the world
self._players = [
] # list for all player entities, they are also inside _objects
self._collidables = [
] # list for all collidable entities for physics, sublist of _objects
self._interactives = [
] # list for all entities that interact on collision, ignore physics
self._camera = Camera(Vec2(0, 0), 1737500 * 16, 1737500 * 10,
1737500 * 4, game.window, self)
self._ui_font = pg.font.SysFont("Arial", 20)
def __init__(self, game):
super().__init__(game)
planet1 = Planetoid("Planet 1", Vec2(1737500*3, 1737500*2.3), mass=(7.348 * 10**22), size=(1737.5*1000))
planet2 = Planetoid("Planet 2", Vec2(1737500 * 3*4, 1737500 * 4.3),
mass=(7.348 * 10 ** 22), size=(1737.5 * 1000))
for i in range(10):
sat1 = TrackedObject("Discovery {0}".format(i), Vec2(1737500 * 5, 1737500 * 2.7))
sat1.velocity = Vec2(1000*(10-i), 1000*i)
self.add_entity(sat1)
g = Goal("First Goal", Vec2(1737500 * 4, 1737500 * 4), 1737500//2, 45)
self.add_entity(planet1)
self.add_entity(planet2)
self.add_entity(g)
sat = Satellite("Player 1", Vec2(1737500 * 5, 1737500 * 2.7))
sat.velocity = Vec2(10000, 4000)
self.add_player_entity(sat)
self.camera.set_follow(sat)
def nearest_vertices(self) -> Vec2:
if len(self.vertices) == 0:
return Vec2()
self.vertices.sort(key=lambda x: x.get_distance(Vec2()))
return self.vertices[0]
def __init__(self, root: Vec2, shape: Shape, collidable: bool = True):
self.root = root
self._shape = shape
self._collidable = collidable
self._velocity = Vec2()
self._angle = .0
def __init__(self, size: float):
vertices = [Vec2(-1*size, 0), Vec2(size, 0)]
edges = [Edge(vertices[0], vertices[1])]
super().__init__(vertices, edges, (255, 255, 0))
