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window.py
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window.py
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import math
from pprint import pprint
import PygameUIKit.button as button
import pygame.sprite
import torch
from PygameUIKit import Group
from PygameUIKit.label import Label
from PygameUIKit.barchart import BarChart
from pygame import Color
from constants import *
SIZE_PIXEL = 18
RED = (255, 0, 0)
WHITE = (255, 255, 255)
LIGHT_BLACK = (40, 44, 52)
BLACK = (0, 0, 0)
class Window:
def __init__(self, win):
self.WIDTH, self.HEIGHT = WIDTH, HEIGHT
self.game_is_on = True
self.win = win
font = pygame.font.SysFont("Montserrat", 30)
self.prediction_values = [0.1] * 10
self.certainty_values = [0] * 10
self.ui_group = Group()
self.clear_btn = button.ButtonText("CLEAR", self.clear, RED, border_radius=5, font_color=Color("white"),
font=font, ui_group=self.ui_group)
labels = [str(i) for i in range(10)]
certainty = [0] * 10
self.bar_chart = BarChart(certainty, labels=labels, ui_group=self.ui_group, max_value=100,
labels_color=Color("white"))
self.label = Label("Predictions :", font_color=WHITE, font=font)
self.predictions_labels = []
for i in range(10):
text = f"{i} : 0.0"
self.predictions_labels.append(Label(text, font_color=WHITE, font=font))
self.grid = Grid(28)
self.writing = False
# Model
self.model = torch.load("model_good.pt")
def run(self):
clock = pygame.time.Clock()
while self.game_is_on:
dt = clock.tick(FPS) / 1000
self.win.fill((40, 44, 52))
self.events()
self.update(dt)
self.draw(self.win)
def events(self):
events = pygame.event.get()
for event in events:
if event.type == pygame.QUIT:
self.game_is_on = False
self.ui_group.handle_event(event)
if event.type == pygame.MOUSEBUTTONDOWN:
if event.button == 1:
self.writing = True
if event.type == pygame.MOUSEBUTTONUP:
if event.button == 1:
self.writing = False
self.calculate_and_show_prediction()
if event.type == pygame.MOUSEMOTION:
if self.writing:
pos = pygame.mouse.get_pos()
x, y = self.grid.rect.topleft
self.grid.handle_event(pos, x, y)
self.calculate_and_show_prediction()
if event.type == pygame.WINDOWRESIZED:
self.WIDTH, self.HEIGHT = self.win.get_size()
# if pygame.mouse.get_pressed()[0]:
# pos = pygame.mouse.get_pos()
# W, H = self.win.get_size()
# x_grid = W / 2 - SIZE_PIXEL * self.grid.n / 2 - 100
# y_grid = H / 2 - SIZE_PIXEL * self.grid.n / 2
# self.grid.handle_event(pos, x_grid, y_grid)
def update(self, dt):
self.ui_group.update(dt)
def draw(self, win):
W, H = self.WIDTH, self.HEIGHT
w_grid = SIZE_PIXEL * self.grid.n
h_grid = SIZE_PIXEL * self.grid.n
x_grid = W / 2 - w_grid / 2
y_grid = (H / 2 - h_grid / 2) * 0.5
self.grid.draw(win, x_grid, y_grid, draw_lines=False)
self.clear_btn.draw(win, x_grid - self.clear_btn.rect.width - 50, y_grid + 10)
# draw the bar chart
self.bar_chart.draw(win, x_grid, y_grid + h_grid + 10, w_grid, H - y_grid - h_grid - 50)
pygame.display.flip()
def update_labels(self):
pprint(self.prediction_values)
max_value = math.exp(max(self.prediction_values))
for i, value in enumerate(self.prediction_values):
self.bar_chart.change_value(i, math.exp(value) * 100 / max_value)
pprint(self.certainty_values)
def clear(self):
self.grid = Grid(28)
self.prediction_values = [0] * len(self.prediction_values)
self.update_labels()
def create_torch_image(self) -> torch.Tensor:
img = torch.zeros((1, 1, 28, 28))
for i in range(28):
for j in range(28):
img[0][0][i][j] = self.grid.tab[j][i]
# show the image
return img
def compute_prediction_values(self):
img = self.create_torch_image()
self.model.eval()
output = self.model(img)
return output
def calculate_and_show_prediction(self):
self.prediction_values = self.compute_prediction_values()[0].tolist()
self.update_labels()
class Grid:
def __init__(self, n):
self.tab = [[0 for i in range(n)] for j in range(n)]
self.n = n
self.rect = pygame.Rect(0, 0, 0, 0)
def draw(self, win, x_offset, y_offset, draw_lines=True):
w, h = SIZE_PIXEL, SIZE_PIXEL
self.rect = pygame.Rect(x_offset, y_offset, w * self.n, h * self.n)
for i in range(self.n):
for j in range(self.n):
x = i * w
y = j * h
if self.tab[i][j] == 0:
pygame.draw.rect(win, WHITE, (x + x_offset, y + y_offset, w, h))
else:
pygame.draw.rect(win, BLACK, (x + x_offset, y + y_offset, w, h))
if draw_lines:
# draw horizontal lines
for i in range(self.n + 1):
pygame.draw.line(win, LIGHT_BLACK, (x_offset, i * h + y_offset),
(self.n * w + x_offset, i * h + y_offset))
# draw vertical lines
for i in range(self.n + 1):
pygame.draw.line(win, LIGHT_BLACK, (i * w + x_offset, y_offset),
(i * w + x_offset, self.n * h + y_offset))
def handle_event(self, pos, x_offset, y_offset):
w, h = SIZE_PIXEL, SIZE_PIXEL
x, y = pos
x -= x_offset
y -= y_offset
i = x // w
j = y // h
if 0 <= i < self.n and 0 <= j < self.n:
i, j = int(i), int(j)
for k in range(i - 1, i + 2):
for l in range(j - 1, j + 2):
if 0 <= k < self.n and 0 <= l < self.n:
self.tab[k][l] = 1