the whole game

src/client/PixelCalc.h

@@ -0,0 +1,36 @@
+//
+//  PixelCalc.h
+//  minecraftpe
+//
+//  Created by rhino on 10/24/11.
+//  Copyright (c) 2011 Mojang AB. All rights reserved.
+//
+
+#ifndef minecraftpe_PixelCalc_h
+#define minecraftpe_PixelCalc_h
+
+class PixelCalc
+{
+public:
+    PixelCalc(float pixelsPerMillimeter = 1) {
+        setPixelsPerMillimeter(pixelsPerMillimeter);
+    }
+    
+    float millimetersToPixels(float mm) const {
+        return mm * _pixelsPerMillimeter;
+    }
+    float pixelsToMillimeters(float pp) const {
+        return pp * _millimetersPerPixel;
+    }
+    
+    void setPixelsPerMillimeter(float pixelsPerMillimeter) {
+        _pixelsPerMillimeter = pixelsPerMillimeter;
+        _millimetersPerPixel = 1.0f / _pixelsPerMillimeter;
+    }
+    
+private:
+    float _pixelsPerMillimeter;
+    float _millimetersPerPixel;
+};
+
+#endif