From 702006d9efabd6469aecf86414e2246534dad391 Mon Sep 17 00:00:00 2001
From: Florian Festi <florian@festi.info>
Date: Sun, 12 Feb 2023 13:25:41 +0100
Subject: [PATCH] New generator: Tetris

Tetris shapes
---
 boxes/generators/tetris.py | 91 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 boxes/generators/tetris.py

diff --git a/boxes/generators/tetris.py b/boxes/generators/tetris.py
new file mode 100644
index 0000000..5767c9d
--- /dev/null
+++ b/boxes/generators/tetris.py
@@ -0,0 +1,91 @@
+#!/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 *
+
+
+class Tetris(Boxes):
+    """3D Tetris shapes"""
+
+    ui_group = "Misc"
+
+    def __init__(self):
+        Boxes.__init__(self)
+
+        self.addSettingsArgs(edges.FingerJointSettings)
+
+        self.argparser.add_argument(
+            "--blocksize", action="store", type=float, default=40.,
+            help="size of a square")
+        self.argparser.add_argument(
+            "--shape", action="store", type=str, default="L",
+            choices=['I', 'L', 'O', 'S', 'T'],
+            help="shape of the piece")
+
+    def cb(self, nr):
+        t = self.thickness
+        s = self.blocksize
+        self.ctx.stroke()
+        self.set_source_color(Color.ETCHING)
+        
+        if nr == 0:
+            if self.shape in "LT":
+                for i in range(1, 3):
+                    with self.saved_context():
+                        self.moveTo(s*i - t, 0, 90)
+                        self.edge(s - 2*t)
+                if self.shape == "L":
+                    self.moveTo(s*2, s - t, 0)
+                else: # "T"
+                    self.moveTo(s, s - t, 0)
+                self.edge(s - 2*t)
+            if self.shape == "I":
+                for i in range(1, 4):
+                    with self.saved_context():
+                        self.moveTo(s*i - t, 0, 90)
+                        self.edge(s - 2*t)
+        if self.shape == "S" and nr in (0, 1, 4, 5):
+            self.moveTo(s - t, 0, 90)
+            self.edge(s - 2*t)
+        if self.shape == "O":
+            self.moveTo(s - t, 0, 90)
+            self.edge(s - t)
+
+
+        self.ctx.stroke()
+                        
+    def render(self):
+        # adjust to the variables you want in the local scope
+        t = self.thickness
+        s = self.blocksize
+        
+        if self.shape == "L":
+            borders = [3*s - 2*t, 90, 2*s - 2*t, 90, s - 2*t, 90,
+                       s, -90, 2*s, 90, s - 2*t, 90] 
+        elif self.shape == "I":
+            borders = [4*s - 2*t, 90, s - 2*t, 90 ] * 2
+        elif self.shape == "S":
+            borders = [2 * s - 2 * t, 90, s, -90, s, 90, s - 2 * t, 90] *2
+        elif self.shape == "O":
+            borders = [2*s - 2*t, 90] * 4
+        elif self.shape == "T":
+            borders = [90, s - 2*t, 90, s, -90, s, 90]
+            borders = [3*s - 2*t] + borders + [s - 2*t] + list(reversed(borders))
+        self.polygonWall(borders=borders, callback=self.cb, move="right")
+        self.polygonWall(borders=borders, callback=self.cb,
+                         move="mirror right")
+
+        self.polygonWalls(borders=borders, h=s - 2 * t)