kopia lustrzana https://github.com/villares/sketch-a-day
80 wiersze
2.0 KiB
Python
80 wiersze
2.0 KiB
Python
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pontos = []
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novos_pontos = []
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arrastando = -1
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offset_curva = 10
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novo_offset_curva = 10
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def setup():
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size(500, 500)
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novos_pontos[:] = pontos[:] = sorteia_pontos()
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def sorteia_pontos():
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pontos = []
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for _ in range(5):
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x, y = random(width * .2, width * .8), random(height * .2, height * .8)
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pontos.append((x, y))
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return pontos
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def draw():
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# background(240, 250, 250)
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fill(240, 250, 250, 10)
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noStroke()
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rect(0, 0, width, height)
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draw_pontos(pontos, offset_curva, handle=True)
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# draw_pontos(novos_pontos, novo_offset_curva, handle=True)
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if frameCount % 2 == 0:
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for i, (x0, y0) in enumerate(pontos):
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x1, y1 = novos_pontos[i]
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if (x0, y0) != (x1, y1):
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pontos[i] = (lerp(x0, x1, .2), lerp(y0, y1, .2))
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global offset_curva
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offset_curva = lerp(novo_offset_curva, offset_curva, .8)
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def draw_pontos(pontos, offset, handle=False):
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for i, (x0, y0) in enumerate(pontos):
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x1, y1 = pontos[i - 1]
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noFill()
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stroke(0)
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strokeWeight(2)
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curva(x0, y0, x1, y1, offset)
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if handle and dist(mouseX, mouseY, x0, y0) < 10:
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stroke(255, 0, 0)
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strokeWeight(1)
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circle(x0, y0, 10)
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def curva(x1, y1, x2, y2, offset=0):
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L = dist(x1, y1, x2, y2)
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with pushMatrix():
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translate(x1, y1)
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angle = atan2(x1 - x2, y2 - y1)
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rotate(angle)
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cx = (L / 2) * offset / 10.
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bezier(0, 0, -cx, L * .50, +cx, L * .50, 0, L)
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def mousePressed():
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global arrastando
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for i, (x0, y0) in enumerate(pontos):
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if dist(mouseX, mouseY, x0, y0) < 10:
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arrastando = i
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def mouseReleased():
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global arrastando
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arrastando = -1
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def mouseDragged():
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if arrastando >= 0:
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novos_pontos[arrastando] = (mouseX, mouseY)
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def mouseWheel(e):
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global novo_offset_curva
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novo_offset_curva += e.getCount() / 5.
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def keyPressed():
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if key == ' ':
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novos_pontos[:] = sorteia_pontos()
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if key == 's':
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saveFrame("####.png")
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