arrastando_grade.pyde

#  estruturas de dados listas, tuplas
#  loop for
#  enumerate()
#  grades, grade de elementos numerados
from random import shuffle
pos_celulas = []
tam = 100  # tamanho
celula_arrastada = None

def setup():
    size(400, 400)
    rectMode(CENTER)
    textSize(20)
    textAlign(CENTER, CENTER)
    for y in range(0, 400, tam):
        for x in range(0, 400, tam):
            pos_celulas.append((x + tam / 2, y + tam / 2))
    shuffle(pos_celulas)
    # print(pos_celulas)

def draw():
    background(0)
    for i, (x, y) in enumerate(pos_celulas):
        if i == celula_arrastada:
            fill(255, 0, 0)
        elif dist(mouseX, mouseY, x, y)  < tam / 2:
            fill(128)
        else:
            fill(255)
        rect(x, y, tam, tam)
        fill(0)
        text(i, x, y)
        # fill(255, 0, 0)
        # circle(x, y, 5)
        
def mousePressed():
    global celula_arrastada
    if celula_arrastada is None:
        for i, (x, y) in reversed(list(enumerate(pos_celulas))):
            if dist(mouseX, mouseY, x, y)  < tam / 2:
                celula_arrastada = i
                break
            
def mouseReleased():
    global celula_arrastada
    celula_arrastada = None
                       
def mouseDragged():
    if celula_arrastada is not None:
        pos_celulas[celula_arrastada] = (mouseX, mouseY)