2021-09-02 19:56:28 +02:00
|
|
|
from numpy import array as a
|
|
|
|
|
import pygame
|
|
|
|
|
import math
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
class EquilateralTriangle:
|
2021-09-06 18:32:02 +02:00
|
|
|
|
|
|
|
|
object_type = "nr"
|
|
|
|
|
|
2021-09-02 19:56:28 +02:00
|
|
|
def __init__(self, position, side_length, rotation, color, scene, width=0):
|
|
|
|
|
self.position = position
|
|
|
|
|
self.side_length = side_length
|
|
|
|
|
self.rotation = rotation
|
|
|
|
|
self.color = color
|
|
|
|
|
self.scene = scene
|
|
|
|
|
self.width = width
|
|
|
|
|
self.rotation_point = complex(math.cos(rotation), math.sin(rotation))
|
|
|
|
|
|
|
|
|
|
self.pd_ = self.scene.pd_
|
|
|
|
|
|
|
|
|
|
self.points = a([
|
|
|
|
|
complex(0, self.side_length),
|
|
|
|
|
complex(self.side_length, self.side_length),
|
|
|
|
|
complex(self.side_length * 0.5,
|
|
|
|
|
self.side_length - math.sqrt(self.side_length ** 2 - (self.side_length * 0.5) ** 2))
|
|
|
|
|
])
|
|
|
|
|
self.points -= complex(self.side_length * 0.5, self.side_length * 0.5)
|
|
|
|
|
self.points *= self.rotation_point * self.pd_
|
|
|
|
|
self.points += complex(self.side_length * 0.5, self.side_length * 0.5)
|
|
|
|
|
rescaled_position = self.scene.matrix @ self.position
|
|
|
|
|
self.points += complex(rescaled_position[0], rescaled_position[1])
|
|
|
|
|
self.points = [[point.real, point.imag] for point in self.points]
|
|
|
|
|
|
|
|
|
|
def blit(self):
|
|
|
|
|
if self.pd_ != self.scene.pd_:
|
|
|
|
|
self.pd_ = self.scene.pd_
|
|
|
|
|
|
|
|
|
|
self.points = a([
|
|
|
|
|
complex(0, self.side_length),
|
|
|
|
|
complex(self.side_length, self.side_length),
|
|
|
|
|
complex(self.side_length * 0.5,
|
|
|
|
|
self.side_length - math.sqrt(self.side_length ** 2 - (self.side_length * 0.5) ** 2))
|
|
|
|
|
])
|
|
|
|
|
self.points -= complex(self.side_length * 0.5, self.side_length * 0.5)
|
|
|
|
|
self.points *= self.rotation_point * self.pd_
|
|
|
|
|
self.points += complex(self.side_length * 0.5, self.side_length * 0.5)
|
|
|
|
|
rescaled_position = self.scene.matrix @ self.position
|
|
|
|
|
self.points += complex(rescaled_position[0], rescaled_position[1])
|
|
|
|
|
self.points = [[point.real, point.imag] for point in self.points]
|
|
|
|
|
|
|
|
|
|
pygame.draw.polygon(self.scene.s, self.color, self.points, self.width)
|
|
|
|
|
|
