From 98ba22e7064db57316dfff1ae127feb3dceeb73e Mon Sep 17 00:00:00 2001
From: Justin Worthe <justin.worthe@entelect.co.za>
Date: Thu, 31 Jul 2014 13:58:22 +0200
Subject: Initial commit

---
 source/logic/Maze.cpp | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 source/logic/Maze.cpp

(limited to 'source/logic/Maze.cpp')

diff --git a/source/logic/Maze.cpp b/source/logic/Maze.cpp
new file mode 100644
index 0000000..ab24035
--- /dev/null
+++ b/source/logic/Maze.cpp
@@ -0,0 +1,77 @@
+#include "Maze.h"
+
+Maze::Maze()
+    :_width(0),
+    _height(0)
+{
+}
+
+void Maze::generateMaze(const vector<pair<int,int> >& walls, int maxObjectX, int maxObjectY)
+{
+    //find bounds so that rectangular vector can be generated
+    int maxX = maxObjectX;
+    int maxY = maxObjectY;
+    for (vector<pair<int,int> >::const_iterator iter = walls.begin(); iter!=walls.end(); ++iter)
+    {
+        if (iter->first > maxX) maxX = iter->first;
+        if (iter->second > maxY) maxY = iter->second;
+    }
+    _width = maxX+1; //need to convert from highest index to required size
+    _height = maxY+1;
+
+
+    _wallLocations.clear();
+
+    for (int x=0; x<_width; ++x)
+    {
+        _wallLocations.push_back(vector<bool>());
+        for (int y=0; y<_height; ++y)
+        {
+            _wallLocations.back().push_back(false);
+        }
+    }
+
+    for (vector<pair<int,int> >::const_iterator iter = walls.begin(); iter!=walls.end(); ++iter)
+    {
+        _wallLocations.at(iter->first).at(iter->second) = true;
+    }
+}
+
+bool Maze::getSolid(const int& x, const int& y) const
+{
+    if (x<0 || y<0) return true;
+    if (x>=width() || y>=height()) return true;
+    //bounds have already been checked, can use more efficient, less safe, indexing
+    return _wallLocations[x][y];
+}
+
+int Maze::width() const
+{
+    return _width;
+}
+int Maze::height() const
+{
+    return _height;
+}
+
+Maze::Direction Maze::backwards(Direction forwards)
+{
+    Direction backwards;
+    switch (forwards)
+    {
+        case LEFT:
+            backwards = RIGHT;
+            break;
+        case RIGHT:
+            backwards = LEFT;
+            break;
+        case UP:
+            backwards = DOWN;
+            break;
+        case DOWN:
+            backwards = UP;
+            break;
+    }
+
+    return backwards;
+}
-- 
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