def draw_rectangle_filled(center_x: float,
center_y: float,
width: float,
height: float,
color: Color,
tilt_angle: float = 0):
"""
Draw a filled-in rectangle.
:param float center_x: x coordinate of rectangle center.
:param float center_y: y coordinate of rectangle center.
:param float width: width of the rectangle.
:param float height: height of the rectangle.
:param Color color: color, specified in a list of 3 or 4 bytes in RGB or
RGBA format.
:param float tilt_angle: rotation of the rectangle. Defaults to zero.
"""
p1 = [-width // 2 + center_x, -height // 2 + center_y]
p2 = [width // 2 + center_x, -height // 2 + center_y]
p3 = [width // 2 + center_x, height // 2 + center_y]
p4 = [-width // 2 + center_x, height // 2 + center_y]
if tilt_angle != 0:
p1 = rotate_point(p1[0], p1[1], center_x, center_y, tilt_angle)
p2 = rotate_point(p2[0], p2[1], center_x, center_y, tilt_angle)
p3 = rotate_point(p3[0], p3[1], center_x, center_y, tilt_angle)
p4 = rotate_point(p4[0], p4[1], center_x, center_y, tilt_angle)
_generic_draw_line_strip((p1, p2, p4, p3), color, gl.GL_TRIANGLE_STRIP)
def _create_rects(rect_list: Iterable[Sprite]) -> List[float]:
"""
Create a vertex buffer for a set of rectangles.
"""
v2f = []
for shape in rect_list:
x1 = -shape.width / 2 + shape.center_x
x2 = shape.width / 2 + shape.center_x
y1 = -shape.height / 2 + shape.center_y
y2 = shape.height / 2 + shape.center_y
p1 = [x1, y1]
p2 = [x2, y1]
p3 = [x2, y2]
p4 = [x1, y2]
if shape.angle:
p1 = rotate_point(p1[0], p1[1], shape.center_x, shape.center_y, shape.angle)
p2 = rotate_point(p2[0], p2[1], shape.center_x, shape.center_y, shape.angle)
p3 = rotate_point(p3[0], p3[1], shape.center_x, shape.center_y, shape.angle)
p4 = rotate_point(p4[0], p4[1], shape.center_x, shape.center_y, shape.angle)
v2f.extend([p1[0], p1[1],
p2[0], p2[1],
p3[0], p3[1],
p4[0], p4[1]])
return v2f
def _set_angle(self, new_value: float):
""" Set the angle of the sprite's rotation. """
if new_value != self._angle:
old_angle = 0.0
if self.rot_point_relative:
old_angle = self._angle
self.clear_spatial_hashes()
self._angle = new_value
self._point_list_cache = None
self.add_spatial_hashes()
if self.rotation_point:
rotate_x, rotate_y = self.rotation_point
self_x, self_y = self.center_x, self.center_y
if old_angle:
rotate_x += self_x
rotate_y += self_y
rotate_x, rotate_y = rotate_point(rotate_x, rotate_y,
self_x, self_y,
old_angle)
sprite_rotate = rotate_point(self_x, self_y, rotate_x,
rotate_y, new_value - old_angle)
self.set_position(sprite_rotate[0], sprite_rotate[1])
for sprite_list in self.sprite_lists:
sprite_list.update_angle(self)
def get_points(self) -> Tuple[Tuple[float, float]]:
"""
Get the corner points for the rect that makes up the sprite.
"""
if self._point_list_cache is not None:
return self._point_list_cache
if self._points is not None:
point_list = []
for point in range(len(self._points)):
point = (self._points[point][0] + self.center_x,
self._points[point][1] + self.center_y)
point_list.append(point)
self._point_list_cache = tuple(point_list)
else:
x1, y1 = arcade.rotate_point(self.center_x - self.width / 4,
self.center_y - self.width / 4,
self.center_x, self.center_y,
self.angle)
x2, y2 = arcade.rotate_point(self.center_x + self.width / 4,
self.center_y - self.height / 4,
self.center_x, self.center_y,
self.angle)
x3, y3 = arcade.rotate_point(self.center_x + self.width / 4,
self.center_y + self.height / 4,
self.center_x, self.center_y,
self.angle)
x4, y4 = arcade.rotate_point(self.center_x - self.width / 4,
self.center_y + self.height / 4,
self.center_x, self.center_y,
self.angle)
self._point_list_cache = ((x1, y1), (x2, y2), (x3, y3), (x4, y4))
return self._point_list_cache
def update(self, delta_time, main):
# Movimiento en mi mismo
self.a += 10 * math.sin(main.frame_count / 4)
# Movimiento para mantenerlo donde corresponde
self.x, self.y = arcade.rotate_point(self.x, self.y,
win.CENTER_W + main.view_left,
win.CENTER_H + main.view_bottom,
main.change_angle)
# Movimiento para alcanzar al circulo
self.t += delta_time
if (self.t > 0): # seg
self.t = 0
# Position the start at the enemy's current location
start_x = self.x
start_y = self.y
# Get the destination location for the bullet
dest_x = main.circle.x
dest_y = main.circle.y
# Do math to calculate how to get the bullet to the destination.
# Calculation the angle in radians between the start points
# and end points. This is the angle the bullet will travel.
x_diff = dest_x - start_x
y_diff = dest_y - start_y
self.d = math.atan2(y_diff, x_diff)
self.x += math.cos(self.d) * 3
self.y += math.sin(self.d) * 3
def get_adjusted_hit_box(self) -> List[List[float]]:
"""
Get the points that make up the hit box for the rect that makes up the
sprite, including rotation and scaling.
"""
# If we've already calculated the adjusted hit box, use the cached version
if self._point_list_cache is not None:
return self._point_list_cache
# If there is no hitbox, use the width/height to get one
if self._points is None and self._texture:
self._points = self._texture.hit_box_points
if self._points is None and self._width:
x1, y1 = -self._width / 2, -self._height / 2
x2, y2 = +self._width / 2, -self._height / 2
x3, y3 = +self._width / 2, +self._height / 2
x4, y4 = -self._width / 2, +self._height / 2
self._points = [[x1, y1], [x2, y2], [x3, y3], [x4, y4]]
if self._points is None and self.texture is not None:
self._points = self.texture.hit_box_points
if self._points is None:
raise ValueError(
"Error trying to get the hit box of a sprite, when no hit box is set.\nPlease make sure the "
"Sprite.texture is set to a texture before trying to draw or do collision testing.\n"
"Alternatively, manually call Sprite.set_hit_box with points for your hitbox."
)
# Adjust the hitbox
point_list = []
for point in self._points:
# Get a copy of the point
point = [point[0], point[1]]
# Scale the point
if self.scale != 1:
point[0] *= self.scale
point[1] *= self.scale
# Rotate the point
if self.angle:
point = rotate_point(point[0], point[1], 0, 0, self.angle)
# Offset the point
point = [point[0] + self.center_x, point[1] + self.center_y]
point_list.append(point)
# Cache the results
self._point_list_cache = point_list
# if self.texture:
# print(self.texture.name, self._point_list_cache)
return self._point_list_cache
def create_rectangle(center_x: float, center_y: float, width: float,
height: float, color: Color,
border_width: float = 1, tilt_angle: float = 0,
filled=True) -> Shape:
"""
This function creates a rectangle using a vertex buffer object.
Creating the rectangle, and then later drawing it with ``render_rectangle``
is faster than calling ``draw_rectangle``.
Args:
center_x:
center_y:
width:
height:
color:
border_width:
tilt_angle:
filled:
Returns:
"""
data: List[Point] = cast(List[Point], get_rectangle_points(center_x, center_y, width, height, tilt_angle))
if filled:
shape_mode = gl.GL_TRIANGLE_STRIP
data[-2:] = reversed(data[-2:])
else:
i_lb = center_x - width / 2 + border_width / 2, center_y - height / 2 + border_width / 2
i_rb = center_x + width / 2 - border_width / 2, center_y - height / 2 + border_width / 2
i_rt = center_x + width / 2 - border_width / 2, center_y + height / 2 - border_width / 2
i_lt = center_x - width / 2 + border_width / 2, center_y + height / 2 - border_width / 2
o_lb = center_x - width / 2 - border_width / 2, center_y - height / 2 - border_width / 2
o_rb = center_x + width / 2 + border_width / 2, center_y - height / 2 - border_width / 2
o_rt = center_x + width / 2 + border_width / 2, center_y + height / 2 + border_width / 2
o_lt = center_x - width / 2 - border_width / 2, center_y + height / 2 + border_width / 2
data = [o_lt, i_lt, o_rt, i_rt, o_rb, i_rb, o_lb, i_lb, o_lt, i_lt]
if tilt_angle != 0:
point_list_2: List[Point] = []
for point in data:
new_point = rotate_point(point[0], point[1], center_x, center_y, tilt_angle)
point_list_2.append(new_point)
data = point_list_2
border_width = 1
shape_mode = gl.GL_TRIANGLE_STRIP
# _generic_draw_line_strip(point_list, color, gl.GL_TRIANGLE_STRIP)
# shape_mode = gl.GL_LINE_STRIP
# data.append(data[0])
shape = create_line_generic(data, color, shape_mode, border_width)
return shape
def test_rotate_point():
x = 0
y = 0
cx = 0
cy = 0
angle = 0
rx, ry = arcade.rotate_point(x, y, cx, cy, angle)
assert rx == 0
assert ry == 0
x = 0
y = 0
cx = 0
cy = 0
angle = 90
rx, ry = arcade.rotate_point(x, y, cx, cy, angle)
assert rx == 0
assert ry == 0
x = 50
y = 50
cx = 0
cy = 0
angle = 0
rx, ry = arcade.rotate_point(x, y, cx, cy, angle)
assert rx == 50
assert ry == 50
x = 50
y = 0
cx = 0
cy = 0
angle = 90
rx, ry = arcade.rotate_point(x, y, cx, cy, angle)
assert rx == 0
assert ry == 50
x = 20
y = 10
cx = 10
cy = 10
angle = 180
rx, ry = arcade.rotate_point(x, y, cx, cy, angle)
assert rx == 0
assert ry == 10
def draw_arc_outline(center_x: float, center_y: float, width: float,
height: float, color: Color,
start_angle: float, end_angle: float,
border_width: float = 1, tilt_angle: float = 0,
num_segments: int = 128):
"""
Draw the outside edge of an arc. Useful for drawing curved lines.
:param float center_x: x position that is the center of the arc.
:param float center_y: y position that is the center of the arc.
:param float width: width of the arc.
:param float height: height of the arc.
:param Color color: color, specified in a list of 3 or 4 bytes in RGB or
RGBA format.
:param float start_angle: start angle of the arc in degrees.
:param float end_angle: end angle of the arc in degrees.
:param float border_width: width of line in pixels.
:param float tilt_angle: angle the arc is tilted.
:param int num_segments: float of triangle segments that make up this
circle. Higher is better quality, but slower render time.
"""
unrotated_point_list = []
start_segment = int(start_angle / 360 * num_segments)
end_segment = int(end_angle / 360 * num_segments)
inside_width = (width - border_width / 2) / 2
outside_width = (width + border_width / 2) / 2
inside_height = (height - border_width / 2) / 2
outside_height = (height + border_width / 2) / 2
for segment in range(start_segment, end_segment + 1):
theta = 2.0 * math.pi * segment / num_segments
x1 = inside_width * math.cos(theta)
y1 = inside_height * math.sin(theta)
x2 = outside_width * math.cos(theta)
y2 = outside_height * math.sin(theta)
unrotated_point_list.append([x1, y1])
unrotated_point_list.append([x2, y2])
if tilt_angle == 0:
uncentered_point_list = unrotated_point_list
else:
uncentered_point_list = []
for point in unrotated_point_list:
uncentered_point_list.append(rotate_point(point[0], point[1], 0, 0, tilt_angle))
point_list = []
for point in uncentered_point_list:
point_list.append((point[0] + center_x, point[1] + center_y))
_generic_draw_line_strip(point_list, color, gl.GL_TRIANGLE_STRIP)
def update(self, delta_time):
""" Movement and game logic """
self.earth_angle += 1
self.moon_angle += 5
earth_center_x, earth_center_y = arcade.rotate_point(
self.sun_x + self.earth_dist, self.sun_y,
self.sun_x, self.sun_y, self.earth_angle)
self.moon_shape_list.center_x = earth_center_x
self.moon_shape_list.center_y = earth_center_y
self.earth_shape_list.angle = self.earth_angle
self.moon_shape_list.angle = self.moon_angle
def get_rectangle_points(center_x: float,
center_y: float,
width: float,
height: float,
tilt_angle: float = 0) -> PointList:
"""
Utility function that will return all four coordinate points of a
rectangle given the x, y center, width, height, and rotation.
Args:
center_x:
center_y:
width:
height:
tilt_angle:
Returns:
"""
x1 = -width / 2 + center_x
y1 = -height / 2 + center_y
x2 = -width / 2 + center_x
y2 = height / 2 + center_y
x3 = width / 2 + center_x
y3 = height / 2 + center_y
x4 = width / 2 + center_x
y4 = -height / 2 + center_y
if tilt_angle:
x1, y1 = rotate_point(x1, y1, center_x, center_y, tilt_angle)
x2, y2 = rotate_point(x2, y2, center_x, center_y, tilt_angle)
x3, y3 = rotate_point(x3, y3, center_x, center_y, tilt_angle)
x4, y4 = rotate_point(x4, y4, center_x, center_y, tilt_angle)
data = [(x1, y1), (x2, y2), (x3, y3), (x4, y4)]
return data
def create_ellipse_filled_with_colors(center_x: float,
center_y: float,
width: float,
height: float,
outside_color: Color,
inside_color: Color,
tilt_angle: float = 0,
num_segments: int = 32) -> Shape:
"""
Draw an ellipse, and specify inside/outside color. Used for doing gradients.
The function returns a Shape object that can be drawn with ``my_shape.draw()``.
Don't create the shape in the draw method, create it in the setup method and then
draw it in ``on_draw``.
For even faster performance, add multiple shapes into a ShapeElementList and
draw that list. This allows nearly unlimited shapes to be drawn just as fast
as one.
:param float center_x:
:param float center_y:
:param float width:
:param float height:
:param Color outside_color:
:param float inside_color:
:param float tilt_angle:
:param int num_segments:
:Returns Shape:
"""
# Create an array with the vertex data
# Create an array with the vertex point_list
point_list = [(center_x, center_y)]
for segment in range(num_segments):
theta = 2.0 * 3.1415926 * segment / num_segments
x = width * math.cos(theta) + center_x
y = height * math.sin(theta) + center_y
if tilt_angle:
x, y = rotate_point(x, y, center_x, center_y, tilt_angle)
point_list.append((x, y))
point_list.append(point_list[1])
color_list = [inside_color] + [outside_color] * (num_segments + 1)
return create_line_generic_with_colors(point_list, color_list,
gl.GL_TRIANGLE_FAN)
def update(self, delta_time, main):
# Actualizar la direccion
self.d += math.radians(main.change_angle)
# Movimiento para mantenerse en el lugar
self.x, self.y = arcade.rotate_point(self.x, self.y,
win.CENTER_W + main.view_left,
win.CENTER_H + main.view_bottom,
main.change_angle)
# Avanzar en linea recta
self.x += math.cos(self.d) * 5
self.y += math.sin(self.d) * 5
""" Special shot
def get_adjusted_hit_box(self) -> List[List[float]]:
"""
Get the points that make up the hit box for the rect that makes up the
sprite, including rotation and scaling.
"""
# If we've already calculated the adjusted hit box, use the cached version
if self._point_list_cache is not None:
return self._point_list_cache
# If there is no hitbox, use the width/height to get one
if self._points is None and self._texture:
self._points = self._texture.unscaled_hitbox_points
if self._points is None and self._width:
x1, y1 = -self._width / 2, -self._height / 2
x2, y2 = +self._width / 2, -self._height / 2
x3, y3 = +self._width / 2, +self._height / 2
x4, y4 = -self._width / 2, +self._height / 2
self._points = [[x1, y1], [x2, y2], [x3, y3], [x4, y4]]
if self._points is None:
raise ValueError(
"Trying to get the hit box of a sprite that doesn't have one.")
# Adjust the hitbox
point_list = []
for point_idx in range(len(self._points)):
# Get the point
point = [self._points[point_idx][0], self._points[point_idx][1]]
# Scale the point
if self.scale != 1:
point[0] *= self.scale
point[1] *= self.scale
# Rotate the point
if self.angle:
point = rotate_point(point[0], point[1], 0, 0, self.angle)
# Offset the point
point = [point[0] + self.center_x, point[1] + self.center_y]
point_list.append(point)
# Cache the results
self._point_list_cache = point_list
# if self.texture:
# print(self.texture.name, self._point_list_cache)
return self._point_list_cache
def draw_arc_filled(center_x: float,
center_y: float,
width: float,
height: float,
color: Color,
start_angle: float,
end_angle: float,
tilt_angle: float = 0,
num_segments: int = 128):
"""
Draw a filled in arc. Useful for drawing pie-wedges, or Pac-Man.
:param float center_x: x position that is the center of the arc.
:param float center_y: y position that is the center of the arc.
:param float width: width of the arc.
:param float height: height of the arc.
:param Color color: color, specified in a list of 3 or 4 bytes in RGB or
RGBA format.
:param float start_angle: start angle of the arc in degrees.
:param float end_angle: end angle of the arc in degrees.
:param float tilt_angle: angle the arc is tilted.
:param float num_segments: Number of line segments used to draw arc.
"""
unrotated_point_list = [[0.0, 0.0]]
start_segment = int(start_angle / 360 * num_segments)
end_segment = int(end_angle / 360 * num_segments)
for segment in range(start_segment, end_segment + 1):
theta = 2.0 * 3.1415926 * segment / num_segments
x = width * math.cos(theta) / 2
y = height * math.sin(theta) / 2
unrotated_point_list.append([x, y])
if tilt_angle == 0:
uncentered_point_list = unrotated_point_list
else:
uncentered_point_list = []
for point in unrotated_point_list:
uncentered_point_list.append(
rotate_point(point[0], point[1], 0, 0, tilt_angle))
point_list = []
for point in uncentered_point_list:
point_list.append((point[0] + center_x, point[1] + center_y))
_generic_draw_line_strip(point_list, color, gl.GL_TRIANGLE_FAN)
def _set_angle(self, new_value: float):
""" Set the angle of the sprite's rotation. """
if new_value != self._angle:
self.clear_spatial_hashes()
self._angle = new_value
self._point_list_cache = None
self.add_spatial_hashes()
rotate_x, rotate_y = self.rotation_point
if rotate_x or rotate_y:
sprite_rotate = rotate_point(self.center_x, self.center_y,
rotate_x, rotate_y, new_value)
self.set_position(sprite_rotate[0], sprite_rotate[1])
for sprite_list in self.sprite_lists:
sprite_list.update_angle(self)
def create_arc_outline(center_x: float,
center_y: float,
width: float,
height: float,
color: arcade.Color,
start_angle: float,
end_angle: float,
border_width: float = 1,
tilt_angle: float = 0,
num_segments: int = 256):
"""
Creates arc outline
"""
unrotated_point_list = []
inside_width = width - border_width / 2
outside_width = width + border_width / 2
inside_height = height - border_width / 2
outside_height = height + border_width / 2
for segment in range(num_segments + 1):
theta = math.pi / 180 * (start_angle + segment *
(end_angle - start_angle) / num_segments)
x1 = inside_width * math.cos(theta)
y1 = inside_height * math.sin(theta)
x2 = outside_width * math.cos(theta)
y2 = outside_height * math.sin(theta)
unrotated_point_list.append([x1, y1])
unrotated_point_list.append([x2, y2])
if tilt_angle == 0:
uncentered_point_list = unrotated_point_list
else:
uncentered_point_list = []
for point in unrotated_point_list:
uncentered_point_list.append(
arcade.rotate_point(point[0], point[1], 0, 0, tilt_angle))
point_list = []
for point in uncentered_point_list:
point_list.append((point[0] + center_x, point[1] + center_y))
shape_mode = gl.GL_LINE_STRIP
return arcade.create_line_generic(point_list, color, shape_mode,
border_width)
def create_ellipse(center_x: float,
center_y: float,
width: float,
height: float,
color: Color,
border_width: float = 1,
tilt_angle: float = 0,
num_segments: int = 32,
filled=True) -> Shape:
"""
This creates an ellipse vertex buffer object (VBO).
The function returns a Shape object that can be drawn with ``my_shape.draw()``.
Don't create the shape in the draw method, create it in the setup method and then
draw it in ``on_draw``.
For even faster performance, add multiple shapes into a ShapeElementList and
draw that list. This allows nearly unlimited shapes to be drawn just as fast
as one.
"""
# Create an array with the vertex point_list
point_list = []
for segment in range(num_segments):
theta = 2.0 * 3.1415926 * segment / num_segments
x = width * math.cos(theta) + center_x
y = height * math.sin(theta) + center_y
if tilt_angle:
x, y = rotate_point(x, y, center_x, center_y, tilt_angle)
point_list.append((x, y))
if filled:
half = len(point_list) // 2
interleaved = itertools.chain.from_iterable(
itertools.zip_longest(point_list[:half],
reversed(point_list[half:])))
point_list = [p for p in interleaved if p is not None]
shape_mode = gl.GL_TRIANGLE_STRIP
else:
point_list.append(point_list[0])
shape_mode = gl.GL_LINE_STRIP
return create_line_generic(point_list, color, shape_mode, border_width)
def draw_ellipse_filled(center_x: float,
center_y: float,
width: float,
height: float,
color: Color,
tilt_angle: float = 0,
num_segments: int = 128):
"""
Draw a filled in ellipse.
:param float center_x: x position that is the center of the circle.
:param float center_y: y position that is the center of the circle.
:param float width: width of the ellipse.
:param float height: height of the ellipse.
:param Color color: color, specified in a list of 3 or 4 bytes in RGB or
RGBA format.
:param float tilt_angle: Angle in degrees to tilt the ellipse.
:param int num_segments: float of triangle segments that make up this
circle. Higher is better quality, but slower render time.
"""
unrotated_point_list = []
for segment in range(num_segments):
theta = 2.0 * 3.1415926 * segment / num_segments
x = (width / 2) * math.cos(theta)
y = (height / 2) * math.sin(theta)
unrotated_point_list.append([x, y])
if tilt_angle == 0:
uncentered_point_list = unrotated_point_list
else:
uncentered_point_list = []
for point in unrotated_point_list:
uncentered_point_list.append(
rotate_point(point[0], point[1], 0, 0, tilt_angle))
point_list = []
for point in uncentered_point_list:
point_list.append((point[0] + center_x, point[1] + center_y))
_generic_draw_line_strip(point_list, color, gl.GL_TRIANGLE_FAN)
def create_ellipse_filled_with_colors(center_x: float,
center_y: float,
width: float,
height: float,
outside_color: Color,
inside_color: Color,
tilt_angle: float = 0,
num_segments: int = 32) -> Shape:
"""
Draw an ellipse, and specify inside/outside color. Used for doing gradients.
:param float center_x:
:param float center_y:
:param float width:
:param float height:
:param Color outside_color:
:param float inside_color:
:param float tilt_angle:
:param int num_segments:
:Returns Shape:
"""
# Create an array with the vertex data
# Create an array with the vertex point_list
point_list = [(center_x, center_y)]
for segment in range(num_segments):
theta = 2.0 * 3.1415926 * segment / num_segments
x = width * math.cos(theta) + center_x
y = height * math.sin(theta) + center_y
if tilt_angle:
x, y = rotate_point(x, y, center_x, center_y, tilt_angle)
point_list.append((x, y))
point_list.append(point_list[1])
color_list = [inside_color] + [outside_color] * (num_segments + 1)
return create_line_generic_with_colors(point_list, color_list,
gl.GL_TRIANGLE_FAN)
def create_ellipse(center_x: float,
center_y: float,
width: float,
height: float,
color: Color,
border_width: float = 1,
tilt_angle: float = 0,
num_segments: int = 32,
filled=True) -> Shape:
"""
This creates an ellipse vertex buffer object (VBO). It can later be
drawn with ``render_ellipse_filled``. This method of drawing an ellipse
is much faster than calling ``draw_ellipse_filled`` each frame.
Note: This can't be unit tested on Appveyor because its support for OpenGL is
poor.
"""
# Create an array with the vertex point_list
point_list = []
for segment in range(num_segments):
theta = 2.0 * 3.1415926 * segment / num_segments
x = width * math.cos(theta) + center_x
y = height * math.sin(theta) + center_y
if tilt_angle:
x, y = rotate_point(x, y, center_x, center_y, tilt_angle)
point_list.append((x, y))
if filled:
half = len(point_list) // 2
interleaved = itertools.chain.from_iterable(
itertools.zip_longest(point_list[:half],
reversed(point_list[half:])))
point_list = [p for p in interleaved if p is not None]
shape_mode = gl.GL_TRIANGLE_STRIP
else:
point_list.append(point_list[0])
shape_mode = gl.GL_LINE_STRIP
return create_line_generic(point_list, color, shape_mode, border_width)
def draw_rectangle_outline(center_x: float,
center_y: float,
width: float,
height: float,
color: Color,
border_width: float = 1,
tilt_angle: float = 0):
"""
Draw a rectangle outline.
:param float center_x: x coordinate of top left rectangle point.
:param float center_y: y coordinate of top left rectangle point.
:param float width: width of the rectangle.
:param float height: height of the rectangle.
:param Color color: color, specified in a list of 3 or 4 bytes in RGB or
RGBA format.
:param float border_width: width of the lines, in pixels.
:param float tilt_angle: rotation of the rectangle. Defaults to zero.
"""
i_lb = center_x - width / 2 + border_width / 2, center_y - height / 2 + border_width / 2
i_rb = center_x + width / 2 - border_width / 2, center_y - height / 2 + border_width / 2
i_rt = center_x + width / 2 - border_width / 2, center_y + height / 2 - border_width / 2
i_lt = center_x - width / 2 + border_width / 2, center_y + height / 2 - border_width / 2
o_lb = center_x - width / 2 - border_width / 2, center_y - height / 2 - border_width / 2
o_rb = center_x + width / 2 + border_width / 2, center_y - height / 2 - border_width / 2
o_rt = center_x + width / 2 + border_width / 2, center_y + height / 2 + border_width / 2
o_lt = center_x - width / 2 - border_width / 2, center_y + height / 2 + border_width / 2
point_list: List[Point] = [
o_lt, i_lt, o_rt, i_rt, o_rb, i_rb, o_lb, i_lb, o_lt, i_lt
]
if tilt_angle != 0:
point_list_2: List[Point] = []
for point in point_list:
new_point = rotate_point(point[0], point[1], center_x, center_y,
tilt_angle)
point_list_2.append(new_point)
point_list = point_list_2
_generic_draw_line_strip(point_list, color, gl.GL_TRIANGLE_STRIP)
def on_draw(self):
ade.start_render()
for shape in self.g_space.shapes:
(x, y) = shape.body.position
type = shape.type
if (type == "circle"):
ade.draw_circle_filled(x, y, shape.radius, shape.color)
rx, ry = ade.rotate_point(x + shape.radius, y, x, y,
shape.body.angle * (180 / 3.1415))
ade.draw_line(x, y, rx, ry, ade.color.GRAY, 2)
if (type == "segment"):
s_x, s_y = shape.a
e_x, e_y = shape.b
ade.draw_line(s_x, s_y, e_x, e_y, shape.color, shape.radius)
def draw_hit_box(self, color: Color = BLACK, line_thickness: float = 1):
"""
Draw a sprite's hit-box.
The 'hit box' drawing is cached, so if you change the color/line thickness
later, it won't take.
:param color: Color of box
:param line_thickness: How thick the box should be
"""
if self._hit_box_shape is None:
# Adjust the hitbox
point_list = []
for point in self.hit_box:
# Get a copy of the point
point = [point[0], point[1]]
# Scale the point
if self.scale != 1:
point[0] *= self.scale
point[1] *= self.scale
# Rotate the point
if self.angle:
point = rotate_point(point[0], point[1], 0, 0, self.angle)
point_list.append(point)
shape = create_line_loop(point_list, color, line_thickness)
self._hit_box_shape = ShapeElementList()
self._hit_box_shape.append(shape)
self._hit_box_shape.center_x = self.center_x
self._hit_box_shape.center_y = self.center_y
self._hit_box_shape.angle = self.angle
self._hit_box_shape.draw()
def get_adjusted_hit_box(self) -> PointList:
"""
Get the points that make up the hit box for the rect that makes up the
sprite, including rotation and scaling.
"""
# If we've already calculated the adjusted hit box, use the cached version
if self._point_list_cache is not None:
return self._point_list_cache
# Adjust the hitbox
point_list = []
for point in self.hit_box:
# Get a copy of the point
point = [point[0], point[1]]
# Scale the point
if self.scale != 1:
point[0] *= self.scale
point[1] *= self.scale
# Rotate the point
if self.angle:
point = rotate_point(point[0], point[1], 0, 0, self.angle)
# Offset the point
point = [point[0] + self.center_x,
point[1] + self.center_y]
point_list.append(point)
# Cache the results
self._point_list_cache = point_list
# if self.texture:
# print(self.texture.name, self._point_list_cache)
return self._point_list_cache
def get_adjusted_hit_box(self) -> Tuple[Tuple[float, float], ...]:
"""
Get the points that make up the hit box for the rect that makes up the
sprite, including rotation and scaling.
"""
if self._point_list_cache is not None:
return self._point_list_cache
if self._points is None:
x1, y1 = -self.width / 2, -self.height / 2
x2, y2 = +self.width / 2, -self.height / 2
x3, y3 = +self.width / 2, +self.height / 2
x4, y4 = -self.width / 2, +self.height / 2
self._points = ((x1, y1), (x2, y2), (x3, y3), (x4, y4))
point_list = []
for point_idx in range(len(self._points)):
# Get the point
point = [self._points[point_idx][0], self._points[point_idx][1]]
# Rotate the point
if self.angle:
point = rotate_point(point[0], point[1], 0, 0, self.angle)
# Scale the point
if self.scale != 1:
point[0] *= self.scale
point[1] *= self.scale
# Offset the point
point = (point[0] + self.center_x, point[1] + self.center_y)
point_list.append(point)
self._point_list_cache = tuple(point_list)
return self._point_list_cache
def get_adjusted_hit_box(self) -> List[List[float]]:
"""
Get the points that make up the hit box for the rect that makes up the
sprite, including rotation and scaling.
"""
# If we've already calculated the adjusted hit box, use the cached version
if self._point_list_cache is not None:
return self._point_list_cache
# If there is no hitbox, use the width/height to get one
if self._points is None and self._texture:
self._points = self._texture.hit_box_points
# Infer points from texture properties
if self._points is None and self._texture and self._texture.width:
self._points = points_from_dimensions(
self._texture.width, self.texture.height)
self._inferred_points_by_texture = True
# Infer points from sprite properties
if self._points is None and self._width:
self._points = points_from_dimensions(self._width, self._height)
if self._points is None and self.texture is not None:
self._points = self.texture.hit_box_points
if self._points is None:
raise ValueError("Error trying to get the hit box of a sprite, when no hit box is set.\nPlease make sure the "
"Sprite.texture is set to a texture before trying to draw or do collision testing.\n"
"Alternatively, manually call Sprite.set_hit_box with points for your hitbox.")
# Adjust the hitbox
point_list = []
# only apply width and height ratio if we get our points from the texture
width_ratio = 0.
height_ratio = 0.
if self._texture:
# Points should have been gotten from the texture
# Apply dimensions ratio.
# Todo: reset _points if texture is set after _points.
width_ratio = self._width / self._texture.width
height_ratio = self._height / self._texture.height
for point in self._points:
# Get a copy of the point
point = [point[0], point[1]]
# take height and width into account
if width_ratio:
point[0] *= width_ratio
if height_ratio:
point[1] *= height_ratio
# Rotate the point
if self.angle:
point = rotate_point(point[0], point[1], 0, 0, self.angle)
# Offset the point
point = [point[0] + self.center_x,
point[1] + self.center_y]
point_list.append(point)
# Cache the results
self._point_list_cache = point_list
# if self.texture:
# print(self.texture.name, self._point_list_cache)
return self._point_list_cache
def test_rotate_point(mock_window):
from arcade import rotate_point
x, y = rotate_point(1, 1, 0, 0, 90)
assert (-1.0, 1.0) == (x, y)
def create_rectangle(center_x: float, center_y: float, width: float,
height: float, color: Color,
border_width: float = 1, tilt_angle: float = 0,
filled=True) -> Shape:
"""
This function creates a rectangle using a vertex buffer object.
The function returns a Shape object that can be drawn with ``my_shape.draw()``.
Don't create the shape in the draw method, create it in the setup method and then
draw it in ``on_draw``.
For even faster performance, add multiple shapes into a ShapeElementList and
draw that list. This allows nearly unlimited shapes to be drawn just as fast
as one.
:param float center_x:
:param float center_y:
:param float width:
:param float height:
:param Color color:
:param float border_width:
:param float tilt_angle:
:param bool filled:
"""
data: List[Point] = cast(List[Point], get_rectangle_points(center_x, center_y, width, height, tilt_angle))
if filled:
shape_mode = gl.GL_TRIANGLE_STRIP
data[-2:] = reversed(data[-2:])
else:
i_lb = center_x - width / 2 + border_width / 2, center_y - height / 2 + border_width / 2
i_rb = center_x + width / 2 - border_width / 2, center_y - height / 2 + border_width / 2
i_rt = center_x + width / 2 - border_width / 2, center_y + height / 2 - border_width / 2
i_lt = center_x - width / 2 + border_width / 2, center_y + height / 2 - border_width / 2
o_lb = center_x - width / 2 - border_width / 2, center_y - height / 2 - border_width / 2
o_rb = center_x + width / 2 + border_width / 2, center_y - height / 2 - border_width / 2
o_rt = center_x + width / 2 + border_width / 2, center_y + height / 2 + border_width / 2
o_lt = center_x - width / 2 - border_width / 2, center_y + height / 2 + border_width / 2
data = [o_lt, i_lt, o_rt, i_rt, o_rb, i_rb, o_lb, i_lb, o_lt, i_lt]
if tilt_angle != 0:
point_list_2: List[Point] = []
for point in data:
new_point = rotate_point(point[0], point[1], center_x, center_y, tilt_angle)
point_list_2.append(new_point)
data = point_list_2
border_width = 1
shape_mode = gl.GL_TRIANGLE_STRIP
# _generic_draw_line_strip(point_list, color, gl.GL_TRIANGLE_STRIP)
# shape_mode = gl.GL_LINE_STRIP
# data.append(data[0])
shape = create_line_generic(data, color, shape_mode, border_width)
return shape
def draw_ellipse_outline(center_x: float,
center_y: float,
width: float,
height: float,
color: Color,
border_width: float = 1,
tilt_angle: float = 0,
num_segments: int = 128):
"""
Draw the outline of an ellipse.
:param float center_x: x position that is the center of the circle.
:param float center_y: y position that is the center of the circle.
:param float width: width of the ellipse.
:param float height: height of the ellipse.
:param Color color: color, specified in a list of 3 or 4 bytes in RGB or
RGBA format.
:param float border_width: Width of the circle outline in pixels.
:param float tilt_angle: Angle in degrees to tilt the ellipse.
:param int num_segments: Number of line segments used to make the ellipse
"""
if border_width == 1:
unrotated_point_list = []
for segment in range(num_segments):
theta = 2.0 * 3.1415926 * segment / num_segments
x = (width / 2) * math.cos(theta)
y = (height / 2) * math.sin(theta)
unrotated_point_list.append([x, y])
if tilt_angle == 0:
uncentered_point_list = unrotated_point_list
else:
uncentered_point_list = []
for point in unrotated_point_list:
uncentered_point_list.append(
rotate_point(point[0], point[1], 0, 0, tilt_angle))
point_list = []
for point in uncentered_point_list:
point_list.append((point[0] + center_x, point[1] + center_y))
_generic_draw_line_strip(point_list, color, gl.GL_LINE_LOOP)
else:
unrotated_point_list = []
start_segment = 0
end_segment = num_segments
inside_width = (width / 2) - border_width / 2
outside_width = (width / 2) + border_width / 2
inside_height = (height / 2) - border_width / 2
outside_height = (height / 2) + border_width / 2
for segment in range(start_segment, end_segment + 1):
theta = 2.0 * math.pi * segment / num_segments
x1 = inside_width * math.cos(theta)
y1 = inside_height * math.sin(theta)
x2 = outside_width * math.cos(theta)
y2 = outside_height * math.sin(theta)
unrotated_point_list.append([x1, y1])
unrotated_point_list.append([x2, y2])
if tilt_angle == 0:
uncentered_point_list = unrotated_point_list
else:
uncentered_point_list = []
for point in unrotated_point_list:
uncentered_point_list.append(
rotate_point(point[0], point[1], 0, 0, tilt_angle))
point_list = []
for point in uncentered_point_list:
point_list.append((point[0] + center_x, point[1] + center_y))
_generic_draw_line_strip(point_list, color, gl.GL_TRIANGLE_STRIP)