Files

87 lines
3.1 KiB
Python

import arcade, arcade.gui, numpy as np, random, math
from scipy.spatial import Delaunay
from game.base import BaseGame
from utils.constants import button_style
from utils.preload import button_texture, button_hovered_texture
class Game(BaseGame):
def __init__(self, pypresence_client):
super().__init__(pypresence_client, "Delaunay Triangulation", "delaunay_simulator", {})
self.points = []
[self.add_point() for _ in range(4)]
self.fixed_points = [(0, 0), (0, self.window.height), (self.window.width * 0.8, 0), (self.window.width * 0.8, self.window.height)]
self.triangles = None
self.dragged_point = None
self.needs_recalc = True
def fract(self, x):
return x - math.floor(x)
def hash3(self, p: float) -> arcade.math.Vec3:
p3 = arcade.math.Vec3(p * 127.1, p * 311.7, p * 74.7)
return arcade.math.Vec3(
int(self.fract(math.sin(p3.x) * 43758.5453123) * 255),
int(self.fract(math.sin(p3.y) * 43758.5453123) * 255),
int(self.fract(math.sin(p3.z) * 43758.5453123) * 255)
)
def on_show_view(self):
super().on_show_view()
self.add_point_button = self.settings_box.add(arcade.gui.UITextureButton(width=self.window.width * 0.2, text="Add Point", texture=button_texture, texture_hovered=button_hovered_texture, style=button_style))
self.add_point_button.on_click = lambda event: self.add_point()
def change_value(self, label, text, settings_key, value):
super().change_value(label, text, settings_key, value)
self.needs_recalc = True
def add_point(self):
self.points.append((random.randint(0, (self.window.width * 0.8)), random.randint(0, self.window.height - 0)))
self.needs_recalc = True
def on_mouse_press(self, x, y, button, modifiers):
if not self.dragged_point:
for i, point in enumerate(self.points):
if arcade.math.Vec2(x, y).distance(arcade.math.Vec2(*point)) <= 10:
self.dragged_point = i
break
def on_mouse_drag(self, x, y, dx, dy, _buttons, _modifiers):
if self.dragged_point is not None:
self.points[self.dragged_point] = [x, y]
self.needs_recalc = True
def on_mouse_release(self, x, y, button, modifiers):
self.dragged_point = None
self.needs_recalc = True
def on_draw(self):
super().on_draw()
if self.triangles is not None:
for n, simplex in enumerate(self.triangles):
points = self.points + self.fixed_points
p1 = points[simplex[0]]
p2 = points[simplex[1]]
p3 = points[simplex[2]]
arcade.draw_triangle_filled(p1[0], p1[1], p2[0], p2[1], p3[0], p3[1], self.hash3(n))
for point in self.points + self.fixed_points:
arcade.draw_circle_filled(point[0] + 5, point[1] + 5, 10, arcade.color.GRAY)
def on_update(self, delta_time):
if self.needs_recalc:
self.needs_recalc = False
self.triangles = Delaunay(np.array(self.points + self.fixed_points)).simplices