improve accuracy

LEGO1/legobackgroundcolor.cpp

@@ -33,22 +33,20 @@ void LegoBackgroundColor::SetColorString(const char *colorString)
     char *colorStringSplit = strtok(colorStringCopy, Delimiter);
     if (!strcmp(colorStringSplit, set))
     {
-      //TODO: the names of these variables are incorrect as I can't figure out what color format ConvertColor() uses
-      char *blue = strtok(0, Delimiter);
-      if (blue)
-        b = atoi(blue) * 0.01;
-      char *green = strtok(0, Delimiter);
-      if (green)
-        g = atoi(green) * 0.01;
-      char *red = strtok(0, Delimiter);
-      if (red)
-        r = atoi(red) * 0.01;
+      char *hue = strtok(0, Delimiter);
+      if (hue)
+        h = atoi(hue) * 0.01;
+      char *sat = strtok(0, Delimiter);
+      if (sat)
+        s = atoi(sat) * 0.01;
+      char *val = strtok(0, Delimiter);
+      if (val)
+        v = atoi(val) * 0.01;
     }
     else if (!strcmp(colorStringSplit, reset))
     {
       // reset it
-
-      ConvertColor(this->b, this->g, this->r, &converted_r, &converted_g, &converted_b);
+      ConvertHSVToRGB(this->h, this->s, this->v, &converted_r, &converted_g, &converted_b);
       videomanager->SetSkyColor(converted_r, converted_g, converted_b);
     }
     free(colorStringCopy);

LEGO1/legoutil.cpp

@@ -1,65 +1,65 @@
 #include "legoutil.h"
 
 // OFFSET: LEGO1 0x1003eae0
-void ConvertColor(float h, float s, float v, float *r_out, float *b_out, float *g_out)
+void ConvertHSVToRGB(float h, float s, float v, float *r_out, float *b_out, float *g_out)
 {
-  double calc; // st7
-  double v11;
-  int hue_index;
+  double calc;
+  double p;
+  long hue_index;
   double v9;
   double v12;
   double v13;
-  if (s >= 0.5)
-    calc = (1.0 - v) * s + v;
+  if (s > 0.5f)
+    calc = ((1.0f - v) * s + v); //
   else
     calc = (v + 1.0) * s;
   if (calc <= 0.0)
   {
-    *g_out = 0.0;
-    *b_out = 0.0;
-    *r_out = 0.0;
+    *g_out = 0.0f;
+    *b_out = 0.0f;
+    *r_out = 0.0f;
     return;
   }
-  v11 = s * 2.0 - calc;
+  p = s * 2.0 - calc;
   hue_index = h * 6.0;
-  v9 = (h * 6.0 - (float)hue_index) * ((calc - v11) / calc) * calc;
-  v12 = v11 + v9;
+  v9 = (h * 6.0 - (float)hue_index) * ((calc - p) / calc) * calc;
+  v12 = p + v9;
   v13 = calc - v9;
   switch (hue_index)
   {
   case 0:
     *r_out = calc;
     *b_out = v12;
-    *g_out = v11;
+    *g_out = p;
     break;
   case 1:
     *r_out = v13;
     *b_out = calc;
-    *g_out = v11;
+    *g_out = p;
     break;
   case 2:
-    *r_out = v11;
+    *r_out = p;
     *b_out = calc;
     *g_out = v12;
     break;
   case 3:
-    *r_out = v11;
+    *r_out = p;
     *b_out = v13;
     *g_out = calc;
     break;
   case 4:
     *r_out = v12;
-    *b_out = v11;
+    *b_out = p;
     *g_out = calc;
     break;
   case 5:
     *r_out = calc;
-    *b_out = v11;
+    *b_out = p;
     *g_out = v13;
     break;
   case 6:
     *r_out = calc;
-    *b_out = v11;
+    *b_out = p;
     *g_out = v13;
     break;
   default:

LEGO1/legoutil.h

@@ -6,5 +6,5 @@ inline T Abs(T p_t)
 {
     return p_t < 0 ? -p_t : p_t;
 }
-void ConvertColor(float r, float g, float b, float* out_r, float* out_g, float* out_b);
+void ConvertHSVToRGB(float r, float g, float b, float* out_r, float* out_g, float* out_b);
 #endif // LEGOUTIL_H

LEGO1/mxbackgroundcolor.h

@@ -14,9 +14,9 @@ class MxBackgroundColor
 protected:
   MxString m_name;
   MxString m_colorString;
-  float b;
-  float g;
-  float r;
+  float h;
+  float s;
+  float v;
 };
 
 #endif // MXBACKGROUNDCOLOR_H