ConvertColor wip

LEGO1/legobackgroundcolor.cpp

@@ -20,9 +20,9 @@ void LegoBackgroundColor::SetColorString(const char *colorString)
   m_colorString.operator=(colorString);
   m_colorString.ToLowerCase();
 
+  float converted_r;
   float converted_b;
   float converted_g;
-  float converted_r;
   LegoVideoManager *videomanager = VideoManager();
 
   if (videomanager && colorString)
@@ -33,9 +33,7 @@ void LegoBackgroundColor::SetColorString(const char *colorString)
     char *colorStringSplit = strtok(colorStringCopy, Delimiter);
     if (!strcmp(colorStringSplit, set))
     {
-      // set it
-
-      //TODO: I think this is in BGR because of the order of local variables
+      //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;
@@ -50,8 +48,8 @@ void LegoBackgroundColor::SetColorString(const char *colorString)
     {
       // reset it
 
-      ConvertColor(this->b, this->g, this->r, &converted_b, &converted_g, &converted_r);
-      videomanager->SetSkyColor(converted_b, converted_g, converted_r);
+      ConvertColor(this->b, this->g, this->r, &converted_r, &converted_g, &converted_b);
+      videomanager->SetSkyColor(converted_r, converted_g, converted_b);
     }
     free(colorStringCopy);
   }

LEGO1/legobackgroundcolor.h

@@ -8,11 +8,6 @@ class LegoBackgroundColor : public MxBackgroundColor
 public:
   __declspec(dllexport) LegoBackgroundColor(const char *, const char *);
   void SetColorString(const char *colorString);
-
-protected:
-  float b;
-  float g;
-  float r;
 };
 
 #endif // LEGOBACKGROUNDCOLOR_H

LEGO1/legoutil.cpp

@@ -1,7 +1,63 @@
 #include "legoutil.h"
 
 // OFFSET: LEGO1 0x1003eae0
-void ConvertColor(float r, float g, float b, float* out_r, float* out_g, float* out_b)
+void ConvertColor(float h, float s, float v, float *r_out, float *b_out, float *g_out)
 {
-    // todo
+  double calc; // st7
+  if (s <= 0.5)
+    calc = (v + 1.0) * s;
+  else
+    calc = (1.0 - v) * s + v;
+  if (calc < 0.0)
+  {
+    *g_out = 0.0;
+    *b_out = 0.0;
+    *r_out = 0.0;
+    return;
+  }
+  double v11 = s * 2.0 - calc;
+  int hue_index = h * 6.0;
+  double v9 = (calc - v11) / calc * (hue_index - hue_index) * calc;
+  double v12 = v11 + v9;
+  double v13 = calc - v9;
+  switch (hue_index)
+  {
+  case 0:
+    *r_out = calc;
+    *b_out = v12;
+    *g_out = v11;
+    break;
+  case 1:
+    *r_out = v13;
+    *b_out = calc;
+    *g_out = v11;
+    break;
+  case 2:
+    *r_out = v11;
+    *b_out = calc;
+    *g_out = v12;
+    break;
+  case 3:
+    *r_out = v11;
+    *b_out = v13;
+    *g_out = calc;
+    break;
+  case 4:
+    *r_out = v12;
+    *b_out = v11;
+    *g_out = calc;
+    break;
+  case 5:
+    *r_out = calc;
+    *b_out = v11;
+    *g_out = v13;
+    break;
+  case 6:
+    *r_out = calc;
+    *b_out = v11;
+    *g_out = v13;
+    break;
+  default:
+    return;
+  }
 }

LEGO1/legovideomanager.cpp

@@ -1,7 +1,13 @@
 #include "legovideomanager.h"
-
+#include <ddraw.h>
 // OFFSET: LEGO1 0x1007c440
-void LegoVideoManager::SetSkyColor(float r, float g, float b)
+void LegoVideoManager::SetSkyColor(float red, float green, float blue)
 {
+  PALETTEENTRY colorStrucure; // [esp+0h] [ebp-4h] BYREF
+
+  colorStrucure.peRed = (red* 255.0);
+  colorStrucure.peGreen = (green * 255.0);
+  colorStrucure.peBlue = (blue * 255.0);
+  colorStrucure.peFlags = -124;
   // TODO
 }

LEGO1/mxbackgroundcolor.h

@@ -10,9 +10,13 @@ class MxBackgroundColor
   virtual MxString *GetColorString();
   virtual void SetColorString(const char *colorString);
   virtual ~MxBackgroundColor();
+
 protected:
   MxString m_name;
   MxString m_colorString;
+  float b;
+  float g;
+  float r;
 };
 
 #endif // MXBACKGROUNDCOLOR_H