From e4704318327aec71a584571e80b6163988cdf6b8 Mon Sep 17 00:00:00 2001
From: epoch <epoch@thebackupbox.net>
Date: Thu, 30 Apr 2020 05:10:42 -0500
Subject: the floppy disk hackvr mesh, and the chaosgate generator and its
 tester-script

---
 share/hackvr/examples/dothack/chaosgate.py | 63 ++++++++++++++++++++++++++++++
 share/hackvr/examples/dothack/test.sh      |  6 +++
 2 files changed, 69 insertions(+)
 create mode 100755 share/hackvr/examples/dothack/chaosgate.py
 create mode 100755 share/hackvr/examples/dothack/test.sh

(limited to 'share/hackvr/examples/dothack')

diff --git a/share/hackvr/examples/dothack/chaosgate.py b/share/hackvr/examples/dothack/chaosgate.py
new file mode 100755
index 0000000..56bf25d
--- /dev/null
+++ b/share/hackvr/examples/dothack/chaosgate.py
@@ -0,0 +1,63 @@
+#!/usr/bin/env python
+
+import math
+
+def fp(p):
+    return " {} {} {}".format(p[0],p[1],p[2])
+
+def print_rect(r):
+    print("gate addshape 4 4 {} {} {} {}".format(fp(r[0]),fp(r[1]),fp(r[2]),fp(r[3])))
+
+d=1
+
+sides = 12.0
+step = 360.0/sides
+rot=0.0
+zoff = 0.0
+while rot < 360:
+#    print("rot: {}".format(rot))
+    x1=math.sin(rot * math.pi / 180.0)
+    y1=math.cos(rot * math.pi / 180.0)
+    rot = rot + step
+    x2=math.sin(rot * math.pi / 180.0)
+    y2=math.cos(rot * math.pi / 180.0)
+
+#    print("{} {}".format(x1,y1))
+
+    ### now to calculate points for the 4 rectangles we need to draw...
+    v1 = x1 * (d+30.0) # inner first point
+    v2 = x1 * (d+32.0) # outer first point
+    v3 = x1 * (d+31.0) # center first point
+
+    v4 = y1 * (d+30.0)
+    v5 = y1 * (d+32.0)
+    v6 = y1 * (d+31.0)
+
+    v7 = x2 * (d+30.0)
+    v8 = x2 * (d+32.0)
+    v9 = x2 * (d+31.0)
+
+    v10 = y2 * (d+30.0)
+    v11 = y2 * (d+32.0)
+    v12 = y2 * (d+31.0)
+
+    p1 = (v1, v4, zoff + 0.0)
+    p2 = (v2, v5, zoff + 0.0)
+    p3 = (v3, v6, zoff + 1.0)
+    p4 = (v3, v6, zoff - 1.0)
+
+    p5 = (v7, v10, zoff + 0.0)
+    p6 = (v8, v11, zoff + 0.0)
+    p7 = (v9, v12, zoff + 1.0)
+    p8 = (v9, v12, zoff - 1.0)
+
+    r1 = (p1, p5, p7, p3) #inner near
+    r2 = (p1, p5, p8, p4) #inner far
+    r3 = (p2, p6, p7, p3) #outer near
+    r4 = (p2, p6, p8, p4) #outer far
+
+    ### first rectange is...
+    print_rect(r1)
+    print_rect(r2)
+    print_rect(r3)
+    print_rect(r4)
diff --git a/share/hackvr/examples/dothack/test.sh b/share/hackvr/examples/dothack/test.sh
new file mode 100755
index 0000000..7a30544
--- /dev/null
+++ b/share/hackvr/examples/dothack/test.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+nonblocktail \
+	<(./chaosgate.py) \
+	<(echo gate move 0 0 150) \
+	<(while true;do for i in $(seq 0 5 360);do echo "gate rotate 0 $i 0";sleep .1;done;done) \
+  | hackvr_open
-- 
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