From 488481b1e530374f5a31a856ee758823d81a068d Mon Sep 17 00:00:00 2001
From: Dilawar Singh <dilawar.s.rajput@gmail.com>
Date: Mon, 15 Nov 2021 14:49:29 +0530
Subject: [PATCH] Added first version.

---
 examples/S99_more/maze/maze.txt      | 138 +++++++++++++++++++++++++++
 examples/S99_more/maze/maze_solve.py |  58 +++++++++++
 2 files changed, 196 insertions(+)
 create mode 100644 examples/S99_more/maze/maze.txt
 create mode 100644 examples/S99_more/maze/maze_solve.py

diff --git a/examples/S99_more/maze/maze.txt b/examples/S99_more/maze/maze.txt
new file mode 100644
index 00000000..efd4c4fe
--- /dev/null
+++ b/examples/S99_more/maze/maze.txt
@@ -0,0 +1,138 @@
+-0.5 -0.5 -0.5 9.5
+-0.5 9.5 9 9.5
+9.5 -0.5 9.5 9.5
+0 -0.5 9.5 -0.5
+0.49999999999999994 -0.5 0.5 0.5
+0.5 1.5 -0.5 1.5
+-0.5 1.5 0.5 1.5
+0.5 2.5 -0.5 2.5
+-0.5 2.5 0.5 2.5
+0.5 4.5 -0.5 4.5
+-0.5 4.5 0.5 4.5
+0.49999999999999994 5.5 0.5 6.5
+0.5 7.5 -0.5 7.5
+-0.5 7.5 0.5 7.5
+0.49999999999999994 7.5 0.5 8.5
+1.5 -0.5 1.5 0.5
+0.5000000000000001 0.5 0.4999999999999999 -0.5
+1.5 1.5 0.5 1.5
+0.5 1.5 1.5 1.5
+1.5 1.5 1.5 2.5
+1.5 5.5 0.5 5.5
+1.5 6.5 0.5 6.5
+1.5 5.5 1.5 6.5
+0.5 5.5 1.5 5.5
+0.5000000000000001 6.5 0.4999999999999999 5.5
+0.5 6.5 1.5 6.5
+0.5000000000000001 8.5 0.4999999999999999 7.5
+1.5 7.5 1.5 8.5
+1.5 0.5 1.5 -0.5
+2.5 2.5 1.5 2.5
+1.5 2.5 1.5 1.5
+2.5 3.5 1.5 3.5
+2.5 2.5 2.5 3.5
+1.5 2.5 2.5 2.5
+1.5 3.5 2.5 3.5
+2.5 3.5 2.5 4.5
+1.5 6.5 1.5 5.5
+1.5 8.5 1.5 7.5
+3.5 0.49999999999999994 2.5 0.5000000000000001
+3.5 1.5 2.5 1.5
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+3.5 5.5 2.5 5.5
+3.5 6.5 2.5 6.5
+2.5 5.5 3.5 5.5
+3.5 7.5 2.5 7.5
+2.5 6.5 3.5 6.5
+2.5 7.5 3.5 7.5
+3.5 8.5 3.5 9.5
+3.5 1.5 3.5 0.5
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+5.5 6.5 5.5 7.5
+5.5 8.5 4.5 8.5
+4.5 8.5 5.5 8.5
+6.5 0.49999999999999994 5.5 0.5000000000000001
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+8.5 0.49999999999999994 7.5 0.5000000000000001
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diff --git a/examples/S99_more/maze/maze_solve.py b/examples/S99_more/maze/maze_solve.py
new file mode 100644
index 00000000..dd08aad9
--- /dev/null
+++ b/examples/S99_more/maze/maze_solve.py
@@ -0,0 +1,58 @@
+#
+# Solve a maze using brute force
+#
+
+__author__ = "Dilawar Singh"
+__email__ = "dilawar.s.rajput@gmail.com"
+
+import math
+import smoldyn
+from pathlib import Path
+
+
+def get_axis(line):
+    x0, y0, x1, y1 = line
+    theta = math.atan2(y1 - y0, x1 - x0)
+    if math.isclose(theta, 0.0) or math.isclose(theta, math.pi):
+        return "+y"
+    return "+x"
+
+
+def add_maze(s, mazefile):
+    panels = []
+    offset = 1.5
+    scale = 10
+    with open(mazefile, "r") as f:
+        for i, l in enumerate(f.read().strip().split("\n")):
+            line = [scale * (offset + float(x)) for x in l.split()]
+            axis = get_axis(line)
+            x0, y0, x1, y1 = line
+            r = s.addRectangle(
+                corner=[x0, y0],
+                dimensions=[max((x1 - x0), (y1 - y0))],
+                axis=axis,
+                name=f"r{i}",
+            )
+            panels.append(r)
+    # close the entry notch
+    r = s.addRectangle(
+        corner=[10, 10],
+        dimensions=[30],
+        axis="+y",
+        name=f"rrr",
+    )
+    panels.append(r)
+    return panels
+
+
+s = smoldyn.Simulation(low=[0, 0], high=[120, 120])
+A = s.addSpecies("A", difc=2, color="blue")
+A.addToSolution(1000, pos=[15, 15])
+
+panels = add_maze(s, Path(__file__).parent / "maze.txt")
+maze = s.addSurface("maze", panels=panels)
+maze.setAction("front", [A], "reflect")
+maze.setAction("back", [A], "reflect")
+maze.setStyle("both", thickness=1, color='red')
+s.addGraphics("opengl", iter=50)
+s.run(3000, dt=0.01)