[feat] Switched to a header only library.

bin/test.sh

@@ -18,7 +18,7 @@ COLOROFF=$(tput sgr0)
 
         printf " - Running %s " "${FILE}"
 
-        if ! g++ -std=c++17 -o test "${FILE}" ./includes/RhythmGameUtilities/RhythmGameUtilities.cpp -Iincludes; then
+        if ! g++ -std=c++17 -o test "${FILE}" -Iincludes; then
             printf "%sCOMPILATION FAILED%s\n" "${REDON}" "${COLOROFF}"
             exit 1
         fi

includes/RhythmGameUtilities/Audio.hpp

@@ -0,0 +1,61 @@
+#pragma once
+
+#include <cmath>
+
+#ifdef _WIN32
+#define PACKAGE_API __declspec(dllexport)
+#else
+#define PACKAGE_API
+#endif
+
+namespace RhythmGameUtilities
+{
+
+extern "C"
+{
+    PACKAGE_API int **ConvertSamplesToWaveform(float *samples, int size,
+                                               int width, int height)
+    {
+        auto waveform = new int *[width];
+
+        auto step = floor(size / width);
+        auto amp = height / 2;
+
+        for (auto x = 0; x < width; x += 1)
+        {
+            waveform[x] = new int[height];
+
+            auto min = 1.0f;
+            auto max = -1.0f;
+
+            for (auto j = 0; j < step; j += 1)
+            {
+                auto index = (int)(x * step + j);
+
+                auto datum = samples[index];
+
+                if (datum < min)
+                {
+                    min = datum;
+                }
+
+                if (datum > max)
+                {
+                    max = datum;
+                }
+            }
+
+            auto minY = (int)((1 + min) * amp);
+            auto maxY = (int)((1 + max) * amp);
+
+            for (auto y = 0; y < height; y += 1)
+            {
+                waveform[x][y] = y >= minY && y <= maxY ? 1 : 0;
+            }
+        }
+
+        return waveform;
+    }
+}
+
+} // namespace RhythmGameUtilities