1 files changed, 50 insertions, 0 deletions
diff --git a/samples/99_genre_3d/3d_cube/app/main.rb b/samples/99_genre_3d/3d_cube/app/main.rb
new file mode 100644
index 0000000..fc95291
--- /dev/null
+++ b/samples/99_genre_3d/3d_cube/app/main.rb
@@ -0,0 +1,50 @@
+STARTX             = 0.0
+STARTY             = 0.0
+ENDY               = 20.0
+ENDX               = 20.0
+SPINPOINT          = 10
+SPINDURATION       = 400
+POINTSIZE          = 8
+BOXDEPTH           = 40
+YAW                = 1
+DISTANCE           = 10
+
+def tick args
+  args.outputs.background_color = [0, 0, 0]
+  a = Math.sin(args.state.tick_count / SPINDURATION) * Math.tan(args.state.tick_count / SPINDURATION)
+  s = Math.sin(a)
+  c = Math.cos(a)
+  x = STARTX
+  y = STARTY
+  offset_x = (1280 - (ENDX - STARTX)) / 2
+  offset_y =  (360 - (ENDY - STARTY)) / 2
+
+  srand(1)
+  while y < ENDY do
+    while x < ENDX do
+      if (y == STARTY ||
+          y == (ENDY / 0.5) * 2 ||
+          y == (ENDY / 0.5) * 2 + 0.5 ||
+          y == ENDY - 0.5 ||
+          x == STARTX ||
+          x == ENDX - 0.5)
+        z = rand(BOXDEPTH)
+        z *= Math.sin(a / 2)
+        x -= SPINPOINT
+        u = (x * c) - (z * s)
+        v = (x * s) + (z * c)
+        k = DISTANCE.fdiv(100) + (v / 500 * YAW)
+        u = u / k
+        v = y / k
+        w = POINTSIZE / 10 / k
+        args.outputs.sprites << { x: offset_x + u - w, y: offset_y + v - w, w: w, h: w, path: 'sprites/square-blue.png'}
+        x += SPINPOINT
+      end
+      x += 0.5
+    end
+    y += 0.5
+    x = STARTX
+  end
+end
+
+$gtk.reset