From 531e46357bc7c85e1fae902d7200a52de566a4c0 Mon Sep 17 00:00:00 2001
From: Rtch90 <ritchie.cunningham@protonmail.com>
Date: Sun, 2 Sep 2012 15:39:38 +0100
Subject: [PATCH] [Add] Some area code. Have fun.

---
 Bin/LibD.pro          |  2 ++
 src/Level/AreaMap.cpp | 48 ++++++++++++++++++++++++++++++++++++++++
 src/Level/AreaMap.h   | 51 +++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 101 insertions(+)
 create mode 100644 src/Level/AreaMap.cpp
 create mode 100644 src/Level/AreaMap.h

diff --git a/Bin/LibD.pro b/Bin/LibD.pro
index e78d2a5..9291c3d 100644
--- a/Bin/LibD.pro
+++ b/Bin/LibD.pro
@@ -27,6 +27,7 @@ HEADERS += ../src/Actor/Player.h \
     ../src/Level/Level.h \
     ../src/Level/Layer.h \
     ../src/Level/Tileset.h \
+    ../src/Level/AreaMap.h \
     ../src/Main/Game.h \
     ../src/Math/Timer.h \
     ../src/Math/Rect.h \
@@ -78,6 +79,7 @@ SOURCES += ../src/Actor/Player.cpp \
     ../src/Level/Tileset.cpp \
     ../src/Level/Level.cpp \
     ../src/Level/Layer.cpp \
+    ../src/Level/AreaMap.cpp \
     ../src/Main/Game.cpp \
     ../src/Main/main.cpp \
     ../src/Math/Vec2.cpp \
diff --git a/src/Level/AreaMap.cpp b/src/Level/AreaMap.cpp
new file mode 100644
index 0000000..f875d60
--- /dev/null
+++ b/src/Level/AreaMap.cpp
@@ -0,0 +1,48 @@
+#include "AreaMap.h"
+
+
+// Pragma warnings give me warnings............. -- Allanis.
+//#pragma warning(disable:4103)
+//#pragma warning(disable:4786)
+
+AreaMap::AreaMap(int sizeX, int sizeY) {
+  _impl = new AreaMapImpl(sizeX, sizeY);
+}
+
+AreaMap::~AreaMap(void) {
+  delete _impl;
+}
+
+int AreaMap::GetAreaValue(int x, int y, int areaMask) {
+  return (_impl->_areamap[x + y * _impl->_sizeX] & areaMask);
+}
+
+bool AreaMap::IsAreaValue(int x, int y, int areaMask, int value) const {
+  if((_impl->_areamap[x + y * _impl->_sizeX] & areaMask) == value)
+    return true;
+  else
+    return false;
+}
+
+bool AreaMap::IsAreaAnyValue(int x, int y, int areaMask) const {
+  if((_impl->_areamap[x + y * _impl->_sizeX] & areaMask) != 0)
+    return true;
+  else
+    return false;
+}
+
+void AreaMap::SetAreaValue(int x, int y, int areaMask, int value) {
+  _impl->_areamap[x + y * _impl->_sizeX] = ((_impl->_areamap[x + y * _impl->_sizeX] & (~areaMask)) | value);
+}
+
+void AreaMap::FillAreaValue(int areaMask, int value) {
+  unsigned int size = _impl->_sizeX * _impl->_sizeY;
+  for(unsigned int i = 0; i < size; i++) {
+    _impl->_areamap[i] = ((_impl->_areamap[i] & (~areaMask)) | value);
+  }
+}
+
+AREAMAP_DATATYPE* AreaMap::GetInternalBuffer(void) {
+  return _impl->_areamap;
+}
+
diff --git a/src/Level/AreaMap.h b/src/Level/AreaMap.h
new file mode 100644
index 0000000..8f93750
--- /dev/null
+++ b/src/Level/AreaMap.h
@@ -0,0 +1,51 @@
+#pragma once
+
+#define AREAMAP_DATATYPE unsigned short
+#define AREAMAP_MAX_DATA_VALUE 0xffff
+
+class AreaMapImpl {
+private:
+  AreaMapImpl(int sizeX, int sizeY) {
+    _sizeX = sizeX;
+    _sizeY = sizeY;
+    _areamap = new AREAMAP_DATATYPE[sizeX * sizeY];
+    for(int i = 0; i < sizeX * sizeY; i++) {
+      _areamap[i] = 0;
+    }
+  }
+
+  ~AreaMapImpl(void) {
+    delete [] _areamap;
+  }
+
+  int _sizeX, _sizeY;
+  AREAMAP_DATATYPE* _areamap;
+
+  friend class AreaMap;
+};
+
+class AreaMap {
+public:
+  AreaMap(int sizeX, int sizeY);
+  ~AreaMap(void);
+
+  // Returns the unshifted value.. You should shift that if you want
+  // get it between 0-n.
+  int GetAreaValue(int x, int y, int areaMask);
+
+  bool IsAreaValue(int x, int y, int areaMask, int value) const;
+  bool IsAreaAnyValue(int x, int y, int areaMask) const;
+
+  // Expects an unshifted value, (Like the one returned by GetAreaValue),
+  // if you have a value between 0-n, shift it first before using this..
+  void SetAreaValue(int x, int y, int areaMask, int value);
+
+  // Same as above, but this applied to the entire area..
+  void FillAreaValue(int areaMask, int value);
+
+  // Mainly for saving and load hacking.
+  AREAMAP_DATATYPE* GetInternalBuffer(void);
+private:
+  AreaMapImpl* _impl;
+};
+