Create sketch_2020_12_16c_recursive_grid.pyde

2020/sketch_2020_12_16c_recursive_grid/sketch_2020_12_16c_recursive_grid.pyde

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+from villares import ubuntu_jogl_fix
+from villares.gif_export import gif_export
+
+add_library('gifAnimation')
+
+    
+def setup():
+    global grid
+    size(640, 640, P3D) 
+    rectMode(CENTER)
+    fill(0)
+    colorMode(HSB)
+    noSmooth()
+    grid = rec_grid(0, 0, 16, width * 2)
+            
+def draw():
+    global f
+    f = frameCount / 80.0
+    background(0)
+    ortho()
+    translate(width / 2, height / 2, 0)
+    rotateX(QUARTER_PI * sin(f))
+    rotateZ(QUARTER_PI * sin(f))
+    # rotateX(QUARTER_PI)
+    # rotateZ(QUARTER_PI)
+    draw_grid(grid)
+    if frameCount % 2:
+        gif_export(GifMaker, "a", finish=False, delay=340)
+    if f >= PI:
+        # noSmooth()
+        gif_export(GifMaker, "a", finish=False)
+        exit()
+    
+def keyPressed():
+    redraw()
+  
+def draw_grid(grid):
+    for cell in grid:
+        if len(cell) == 3:
+            x, y, cw = cell
+            stroke(8 + 2 * (cw + 2), 255, 255)
+            sbox(x, y, cw, cos(f))
+        else:
+            draw_grid(cell)
+  
+        
+def rec_grid(x, y, n, tw):
+    pushMatrix()
+    translate(x, y)
+    cw = float(tw) / n
+    margin = (cw - tw) / 2.0
+    cells = []
+    for i in range(n):
+        nx = cw * i + margin
+        for j in range(n):
+            ny = cw * j + margin
+            if cw > 8 and random(10) < 5:
+                cs = rec_grid(nx, ny, 2, cw)
+                cells.append(cs)
+            else:
+                stroke(8 + 2 * cw, 255, 255)
+                cells.append((screenX(nx, ny), screenY(nx, ny), cw-2))
+    popMatrix()
+    return cells
+    
+    
+def sbox(x, y, s, s2):
+    pushMatrix()
+    translate(x , y, -abs(s * s2)  + s * s2)
+    box(s, s, s2 * 256 - s)
+    popMatrix()