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#ifndef _SKY_H_
#define _SKY_H_
class CF::Sky
{
public:
Sky(GLfloat* sr, GLfloat* m, GLfloat* n, GLfloat* ss, GLfloat* nt, GameTime* g) /*...*/
void Update()
{
// If a fourth of a second passed passed
/*if(nowTime >= prevTime + 1000/4)
{
time->second++;
time->Update(); // Update timer
//iPerc += 1000/4;
iPerc += 0.02f;
prevTime = nowTime; // Previous time
}*/time->second++;
time->Update(); // Update timer
//iPerc += 1000/4;
iPerc += 0.02f;
prevTime = nowTime; // Previous time
nowTime = SDL_GetTicks(); // Now time
}
void Render()
{
GLfloat color[3] = {0, 0, 0};
// Sky colors...
if(selectedSky == 0)
Interpolate(sunRColor, morningColor, color, iPerc);
else if(selectedSky == 1)
Interpolate(morningColor, noonColor, color, iPerc);
else if(selectedSky == 2)
Interpolate(morningColor, sunSColor, color, iPerc);
else if(selectedSky == 3)
Interpolate(morningColor, nightColor, color, iPerc);
// Set clear color to interpolated value
glClearColor(color[0], color[1], color[2], color[3]);
/*Code for fog...*/
}
~Sky() /*...*/
private:
// Game Time
GameTime* time;
// Arrays
GLfloat* sunRColor;
GLfloat* morningColor;
GLfloat* noonColor;
GLfloat* sunSColor;
GLfloat* nightColor;
Uint32 prevTime;
Uint32 nowTime;
float iPerc;
bool constructor;
Uint8 selectedSky;
/**FUNCTIONS**/
void Interpolate(GLfloat* beg, GLfloat* end, GLfloat* ret, float percnt)
{
// Interpolate formula:
// Vc = Vi + interpolatePercentage * (Vf – Vi)
//
// Vc = calculated value
// Vi = intial value
// Vf = end value
GLfloat tmpA[3] = {beg[0], beg[1], beg[2]};
GLfloat begn[3] = {beg[0], beg[1], beg[2]};
for(unsigned int i = 0; i < 3; i++) // Interpolate the colors
ret[i] = tmpA[i] + (percnt *(end[i] - tmpA[i]));
}
};
#endif//_SKY_H_
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