day 31

README.md

@@ -5,6 +5,12 @@
 Hi! I'm [Alexandre Villares](https://abav.lugaralgum.com), let's see if I can make one small program (*sketch*) a day. I'm working with [Processing Java Mode](https://processing.org), [Processing Python Mode](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN), [P5JS (JavaScript)](p5js.org) and sometimes other stuff.
 
 If you enjoy this, make a small donation [here](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=HCGAKACDMVNV2) or with [Patreon](https://patreon.com/arteprog)
+----
+
+![31c](sketch_180130c/sketch_180131c.gif)
+
+031: [sketch_180130c](https://github.com/villares/sketch-a-day/tree/master/sketch_180131c)  [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]
+Like 29 but with moving points after the gesture is done
 
 ----
 

sketch_180131c/sketch.properties

@@ -0,0 +1,2 @@
+mode=Python
+mode.id=jycessing.mode.PythonMode

sketch_180131c/sketch_180131c.pyde

@@ -0,0 +1,59 @@
+"""
+s18031c - Alexandre B A Villares
+https://abav.lugaralgum.com/sketch-a-day
+
+Drag the mouse over the canvas to draw
+the 'brush' varies with mouse speed.
+"""
+
+LIST, speed = [], [0, 0]
+SAVE_FRAME, FRAME_COUNT = False, 0
+
+def setup():
+    size(500, 500)
+    colorMode(HSB)
+    noFill()
+
+def draw():
+    global SAVE_FRAME, FRAME_COUNT
+    background(50)
+    for w, x, y, px, py in LIST:
+        c = map(w, 0, 10, 0, 255)  # maps 1 to 10 to 0 to 255 scale
+        stroke((c + frameCount) % 255, 255, 255)  # circle colors
+        # strokeWeight(abs(w)/2)
+        ellipse(x, y, w, w)
+    if len(LIST) > 2:
+        w, x, y, px, py = LIST[0]
+        a, b = PVector(x,y),PVector(LIST[1][1],LIST[1][2]) 
+        c = a - b
+        del LIST[0]
+        LIST.append((w,
+                    LIST[-1][1]+c.x,
+                    LIST[-1][2]+c.y,
+                    LIST[-1][3]+c.x,
+                    LIST[-1][4]+c.y))
+
+    x, y, px, py = mouseX, mouseY, pmouseX, pmouseY
+    # squareroot of dist to previous mousse pos
+    speed[0] = (dist(x, y, px, py)) ** 0.5
+    # mean of 10 minus speed & previous
+    w = ((10 - speed[0]) + (10 - speed[1])) / 2
+    speed[1] = speed[0]  # updates previous speed
+
+    if mousePressed:
+        LIST.append((w, x, y, px, py))
+        
+    if SAVE_FRAME and FRAME_COUNT < 256:
+        saveFrame("####.tga")
+        FRAME_COUNT += 1
+    elif SAVE_FRAME:
+        SAVE_FRAME = False
+        print "Recording finished."
+
+def keyPressed():
+    global SAVE_FRAME, FRAME_COUNT
+    if key == ' ':
+        LIST[:] = []
+    if key == 's' and not SAVE_FRAME:
+        SAVE_FRAME, FRAME_COUNT = True, 0
+        print "Recording started."