From 273174fae850982a9dbaec29ab7a9eb3f2546fdb Mon Sep 17 00:00:00 2001
From: Florian Festi <ffesti@redhat.com>
Date: Sat, 26 Nov 2016 12:51:30 +0100
Subject: [PATCH] New generator: TrafficLight

---
 boxes/generators/trafficlight.py | 107 +++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 boxes/generators/trafficlight.py

diff --git a/boxes/generators/trafficlight.py b/boxes/generators/trafficlight.py
new file mode 100644
index 0000000..83012b0
--- /dev/null
+++ b/boxes/generators/trafficlight.py
@@ -0,0 +1,107 @@
+#!/usr/bin/env python3
+# Copyright (C) 2013-2016 Florian Festi
+#
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from boxes import *
+import math
+
+class ShadyEdge(edges.BaseEdge):
+    char = "s"
+
+    def __call__(self, lenght, **kw):
+        s = self.shades
+        h = self.h
+        a = math.atan(s/h)
+        angle = math.degrees(a)
+        for i in range(3):
+            self.polyline(0, -angle, h / math.cos(a), angle+90)
+            self.edges["f"](s)
+            self.corner(-90)
+            if i < 2:
+                self.edge(self.thickness)
+
+    def margin(self):
+        return self.shades
+
+class TrafficLight(Boxes): # change class name here and below
+    """Traffic light with 3 lights"""
+    
+    def __init__(self):
+        Boxes.__init__(self)
+
+        self.addSettingsArgs(edges.FingerJointSettings)
+
+        # remove cli params you do not need
+        self.buildArgParser("h")
+        # Add non default cli params if needed (see argparse std lib)
+        self.argparser.add_argument(
+            "--depth",  action="store", type=float, default=100,
+            help="inner depth not including the shades")
+        self.argparser.add_argument(
+            "--shades",  action="store", type=float, default=50,
+            help="depth of the shaders")
+
+    def backCB(self):
+        t = self.thickness
+        for i in range(1,3):
+            self.fingerHolesAt(i*(self.h+t)-0.5*t, 0, self.h)
+
+    def sideCB(self):
+        t = self.thickness
+        for i in range(1,3):
+            self.fingerHolesAt(i*(self.h+t)-0.5*t, 0, self.depth)
+        for i in range(3):
+            self.fingerHolesAt(i*(self.h+t),
+                               self.depth-2*t, self.h, 0)
+
+    def frontCB(self):
+        self.hole(self.h/2, self.h/2, self.h/2-self.thickness)
+    
+    def render(self):
+        # adjust to the variables you want in the local scope
+        d, h = self.depth, self.h
+        s = self.shades
+        t = self.thickness
+
+        th = 3 * h + 2*t
+        
+        # Initialize canvas
+        self.open()
+
+        self.addPart(ShadyEdge(self, None))
+
+        self.rectangularWall(th, h, "FFFF", callback=[self.backCB], move="up")
+        self.rectangularWall(th, d, "fFsF", callback=[self.sideCB], move="up")
+        self.rectangularWall(th, d, "fFsF", callback=[self.sideCB], move="up")
+        
+        e = edges.CompoundEdge(self, "fF", (d, s))
+        e2 = edges.CompoundEdge(self, "Ff", (s, d))
+        for i in range(3):
+            self.rectangularWall(h, d+s, ['f', e, 'e', e2],
+                                 move="right" if i<2 else "right up")
+        for i in range(3):
+            self.rectangularWall(h, h, "ffff", callback=[self.frontCB],
+                                 move="left" if i<2 else "left up")
+        self.rectangularWall(h, d, "ffef")
+        
+        self.close()
+
+def main():
+    b = TrafficLight() # change to class name
+    b.parseArgs()
+    b.render()
+
+if __name__ == '__main__':
+    main()