def __init__(self, start, end, arrow_size=10, stroke_color=(0,0,0), stroke_width=1, stroke_opacity=1):
SvgCollection.__init__(self)
self.type = "arrow"
self.add(Line(start, end, stroke_color, stroke_width, stroke_opacity))
arrow_direction = util.direction(start, end)
d1 = util.scale_vector(util.rotate_2D_vector(arrow_direction, math.pi * 5/6), arrow_size)
d2 = util.scale_vector(util.rotate_2D_vector(arrow_direction, math.pi * -5/6), arrow_size)
e1 = util.add_vector(end, d1)
e2 = util.add_vector(end, d2)
self.add(Line(end, e1, stroke_color, stroke_width, stroke_opacity))
self.add(Line(end, e2, stroke_color, stroke_width, stroke_opacity))
def spawn_engine_particles(self, destination_list):
if self.engine_particles_to_spawn <= 0:
return
location_offset = util.scale_vector(self.direction_vector, -3)
location = util.add_vector(self.get_rect().center, location_offset)
vel_offset = util.scale_vector(self.direction_vector,
self.particle_direction)
particle_velocity = util.add_vector(self.get_velocity(), vel_offset)
particle.spawn_particles(destination_list,
count=self.engine_particles_to_spawn,
location=location,
velocity=particle_velocity,
color=dark_red,
fade_to_color=light_yellow)
self.engine_particles_to_spawn = 0
def __init__(self, origin, text, font_size=None, fill_color=None, stroke_color=None, stroke_width=0):
SvgObject.__init__(self)
self.type = "text"
self.xml_value = text
self.set_attribute("x", origin[0])
self.set_attribute("y", origin[1])
self.set_attribute_color("fill", fill_color)
self.set_attribute("font-size", font_size)
self.set_attribute_color("stroke", stroke_color)
self.set_attribute("stroke-width", stroke_width)
if (font_size == None):
font_size = default_font_size
self.min_corner = util.add_vector(origin, (0, -font_size))
self.max_corner = util.add_vector(origin, (0, 0)) # I don't know how to asses the pixel length of the text
def fire_laser(self, delta_time):
if self.last_fire >= self.fire_rate:
# print("laser fired! " + str(delta_time))
self.last_fire = 0
location = self.get_rect().center
offset = util.scale_vector(self.direction_vector, 5)
final_location = util.add_vector(offset, location)
laser = lasermod.Laser(final_location, self.direction_vector,
self.get_velocity())
self.lasers.append(laser)
def init_image(hp):
# todo make the drawing cooler.
direction_of_draw = pygame.math.Vector2((0, -1))
total_points = hp + 2
degrees_per_point = 360 / total_points
diameter = diameter_from_hp(hp)
radius = int(diameter / 2)
surface = pygame.Surface((diameter, diameter), pygame.SRCALPHA)
center_point = surface.get_rect().center
points = []
previous_scalar = radius
for _ in range(total_points):
point_scalar = max(min(util.gauss(previous_scalar + 1, 3), radius), 1)
previous_scalar = point_scalar
point = util.scale_vector(direction_of_draw, point_scalar)
point = util.add_vector(point, center_point)
points.append(point)
direction_of_draw = direction_of_draw.rotate(degrees_per_point)
pygame.draw.polygon(surface, asteroid_color, points)
return surface
def pan(self, offset):
self.min_corner = util.add_vector(self.min_corner, offset)
self.max_corner = util.add_vector(self.max_corner, offset)
pass
