From 17d63648652192d09c90bcd4ba6e575499a9b8e6 Mon Sep 17 00:00:00 2001
From: Justin Lin <justin.sdk@gmail.com>
Date: Sun, 25 Sep 2022 19:43:12 +0800
Subject: [PATCH] add fidget_pumpkin

---
 examples/spiral_polygons/fidget_pumpkin.scad | 118 +++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 examples/spiral_polygons/fidget_pumpkin.scad

diff --git a/examples/spiral_polygons/fidget_pumpkin.scad b/examples/spiral_polygons/fidget_pumpkin.scad
new file mode 100644
index 00000000..205e233e
--- /dev/null
+++ b/examples/spiral_polygons/fidget_pumpkin.scad
@@ -0,0 +1,118 @@
+beginning_radius = 7.5;
+
+number_of_polygons = 6;
+height = 15;
+thickness = 1;
+spacing = 1;
+slope = 0.58;
+central_scale = 1;
+
+$fn = 12;
+        
+fidget_pumpkin(beginning_radius, number_of_polygons, height, thickness, spacing, slope, central_scale);
+
+module fidget_pumpkin(beginning_radius, n, height, thickness, spacing, slope, central_scale) {
+    fn = 8;
+    theta = 180 / fn;
+
+	y = beginning_radius - beginning_radius * cos(theta);
+	dr = y / cos(theta) + thickness + spacing;
+
+    module pumpkin(r) {
+        scale(0.7 * r) 
+        translate([0, .125]) {
+            scale([1, 1.15]) {
+                scale([1.2, 1.325])
+                    circle(1);
+
+                scale([1.2, 1.3])
+                translate([-.5, 0])
+                    circle(1);
+
+                scale([1.2, 1.3])
+                translate([.5, 0])
+                    circle(1);
+            }
+
+            hull() {
+                translate([.1, 1.4])
+                circle(.25);
+
+                translate([.15, 1.5])
+                circle(.15);
+            }
+        }
+    }
+    
+	module eye() {
+        scale([1.2, 1] * 1.25)
+        difference() {
+             circle(1.5);
+             translate([0, 2])
+                 square(3, center = true);
+        }
+	}
+	
+	rs = [for(i = [0: n + 1]) beginning_radius + i * dr];
+	
+	half_height = height / 2;
+
+	s = [for(i = [1: n + 1]) (rs[i] + slope * half_height) / rs[i]];
+
+	module half() {
+	    translate([0, 0, -half_height]) {
+		    //translate([0, 0, -4])
+			difference() {
+				linear_extrude(half_height, scale = s[0])
+				scale(central_scale)
+					pumpkin(beginning_radius);
+					
+                
+                linear_extrude(thickness * 2, center = true) {
+                    translate([beginning_radius * 0.5, beginning_radius * 0.45]) 
+                    rotate(25)
+                        eye();
+                    
+                    translate([-beginning_radius * 0.5, beginning_radius * 0.45]) 
+                    rotate(-25)
+                        eye();
+                }
+                
+                linear_extrude(thickness * 2, center = true)
+                difference() {
+                    translate([0, -1.25])
+                    scale([1.6, 1])
+                    difference() {
+                        circle(4);
+                        translate([0, 4.75])
+                            square(8, center = true);
+                    }
+                    translate([-beginning_radius * 0.45, 0])
+                    rotate(-85)
+                        circle(2.5, $fn = 3);
+                        
+                    translate([beginning_radius * 0.45, 0])
+                    rotate(-95)
+                        circle(2.5, $fn = 3);
+
+                        
+                    translate([0, beginning_radius * -0.7])
+                    rotate(-30)
+                        circle(2.5, $fn = 3);
+                }
+			}
+			
+			for(i = [1:n - 1]) {
+				linear_extrude(half_height, scale = s[i])
+				difference() {
+					pumpkin(rs[i]);
+				    pumpkin(rs[i] - thickness);
+				}					
+			}
+		}
+	}
+	
+	half();	
+	mirror([0, 0, 1])
+		half();
+}
\ No newline at end of file