# Alexandre B A Villares - https://abav.lugaralgum.com/sketch-a-day SKETCH_NAME, OUTPUT = "sketch_190323a", ".gif" """ A retake of sketch 58 180228 + work from sketch_190321 :) """ from collections import namedtuple import random as rnd import copy as cp add_library('GifAnimation') from gif_exporter import gif_export SPACING, MARGIN = 60, 120 X_LIST, Y_LIST = [], [] # listas de posições para elementos desenho_atual, outro_desenho, desenho_inter, desenho_inicial = [], [], [], [] NUM_NODES = 32 # número de elementos do desenho / number of nodes Node = namedtuple( 'Node', 'x y t_size s_weight is_special points_to') save_frames = False def setup(): smooth(16) size(600, 600) rectMode(CENTER) noFill() X_LIST[:] = [x for x in range(MARGIN, 1 + width - MARGIN, SPACING)] Y_LIST[:] = [y for y in range(MARGIN, 1 + height - MARGIN, SPACING)] novo_desenho(desenho_atual) desenho_inicial[:] = cp.deepcopy(desenho_atual) println("'s' to save, and 'n' for a new drawing") def keyPressed(): global save_frames if key == 's': saveFrame("####.png") #save_frames = not save_frames print "Saving "+repr(save_frames) if key == 'r': make_nodes_point(desenho_atual) if key == 'n': novo_desenho(desenho_atual) if key == ' ': background(200) def novo_desenho(desenho): """ esvazia a lista elementos (setas e linhas) do desenho anterior clears the list of nodes and creates a a new drawing appending desenho_atual, a list of nodes/drawing elements: specials, connecting lines and lonely nodes """ desenho[:] = [] for _ in range(NUM_NODES): desenho.append(new_node()) make_nodes_point(desenho) outro_desenho[:] = cp.deepcopy(desenho) make_nodes_point(outro_desenho) def new_node(): return Node( # elemento/"nó" uma namedtuple com: rnd.choice(X_LIST), # x rnd.choice(Y_LIST), # y rnd.choice([10, 20, 30]), # t_size (tail/circle size) rnd.choice([1, 2, 3]), # s_weight (espessura da linha) rnd.choice([True, False]), # is_special? (se é wave ou 'linha') [] # points_to... (lista com ref. a outro elem.)) ) def make_nodes_point(desenho): for node in desenho: # para cada elemento do desenho node.points_to[:] = [] random_node = rnd.choice(desenho) # sorteia o,utro elemento while not ((node.x, node.y) != (random_node.x, random_node.y) and dist(node.x, node.y, random_node.x, random_node.y) <= SPACING * 2): random_node = rnd.choice(desenho) # 'aponta' para este elemento, acrescenta na sub_lista node.points_to.append(random_node) def draw(): global desenho_atual, outro_desenho background(200) fc = frameCount % 300 - 150 if fc < 0: desenho = desenho_atual elif 0 <= fc < 149: if frameCount % 10 == 0: make_inter_nodes(map(fc, 0, 150, 0, 1)) desenho = desenho_inter elif fc == 149: desenho_atual, outro_desenho = outro_desenho, desenho_atual desenho = desenho_atual if not mousePressed: make_nodes_point(outro_desenho) print("will reset") else: outro_desenho[:] = cp.deepcopy(desenho_inicial) # draws white 'lines', non-specials, first. for node in (n for n in desenho if not n.is_special): for other in node.points_to: # se estiver apontando para alguém strokeWeight(node.s_weight) stroke(255) line(node.x, node.y, other.x, other.y) # desenha o círculo (repare que só em nós que 'apontam') ellipse(node.x, node.y, node.t_size, node.t_size) # then draws 'lonely nodes' in red (nodes that do not point anywhere) for node in (n for n in desenho if not n.points_to): strokeWeight(node.s_weight) stroke(100) # grey stroke for lonely nodes if node.is_special: ellipse(node.x, node.y, node.t_size*2, node.t_size*2) else: ellipse(node.x, node.y, node.t_size, node.t_size) # then draws black specials for node in (n for n in desenho if n.is_special): for other in node.points_to: # se estiver apontando para alguém strokeWeight(node.s_weight) stroke(0) wave(node.x, node.y, other.x, other.y, node.t_size, node.s_weight * 5) ellipse(node.x, node.y, node.t_size/2, node.t_size/2) ellipse(other.x, other.y, node.s_weight, node.s_weight) # if frameCount % 4 == 0: # gif_export(GifMaker) def make_inter_nodes(amt): desenho_inter[:] = [] for n1, n2 in zip(desenho_atual, outro_desenho): if n1.points_to: p1x, p1y = n1.points_to[0].x, n1.points_to[0].y else: p1x, p1y = n1.x, n1.y if n2.points_to: p2x, p2y = n2.points_to[0].x, n2.points_to[0].y else: p2x, p2y = n2.x, n2.y desenho_inter.append(Node( # elemento/"nó" uma namedtuple com: n1.x, # x n1.y, # y n1.t_size, # t_size (tail/circle size) n1.s_weight, # s_weight (espessura da linha) n1.is_special, # is_special? (se é barra ou 'linha') # cp.deepcopy(n1.points_to) [PVector(lerp(p1x, p2x, amt), lerp(p1y, p2y, amt))] )) def wave(x1, y1, x2, y2, s=None, n=2): """ dois pares (x, y), largura, número de ondas """ L = dist(x1, y1, x2, y2) if not s: s = int(max(L / 5, 10)) with pushMatrix(): translate(x1, y1) angle = atan2(x1 - x2, y2 - y1) rotate(angle) offset = 0 dy = L / (n+2) line(0, 0, 0, dy) for i in range(1, n+1): if i % 2: line(0, i * dy, -s, i * dy + dy/2) line(0, i * dy + dy, -s, i * dy + dy/2.) else: line(0, i * dy, s, i * dy + dy/2) line(0, i * dy + dy, s, i * dy + dy/2.) line(0, L, 0, L- dy) # print text to add to the project's README.md def settings(): println( """ ![{0}](2019/{0}/{0}{1}) [{0}](https://github.com/villares/sketch-a-day/tree/master/2019/{0}) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)] """.format(SKETCH_NAME, OUTPUT) )