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4 new programs: green vs blue (a) and crossfades (s,d,f)

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Radka Haneckova 2011-10-02 10:12:42 +02:00
parent 1bba88fe52
commit abeb492beb
1 changed files with 63 additions and 0 deletions
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63
host/ledbar.c
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@ -236,6 +236,65 @@ void programP(int i, int t, double *r, double *g, double *b)
}
}
// green vs blue
void programA(int i, int t, double *r, double *g, double *b)
{
static float pos = BOXES/2;
static float dir = 0.05;
*r = 0;
*g = max(1 - fabsl((pos-i)/BOXES)*4, 0);
*b = max(1 - fabsl(((BOXES-pos)-i)/BOXES)*4, 0);
pos += dir;
if (pos < 0 || pos > BOXES) dir = -dir;
}
// crossfade rg
void programS(int i, int t, double *r, double *g, double *b)
{
if (i%2==0) {
*r = (sin(((double)(t-100)/200)*(2*M_PI))+1)/2;
*g = (sin(((double)t/200)*(2*M_PI))+1)/2;
*b = 0;
} else {
*r = (sin(((double)t/400)*(2*M_PI))+1)/2;
*g = (sin(((double)(t-200)/400)*(2*M_PI))+1)/2;
*b = 0;
}
}
// crossfade gb
void programD(int i, int t, double *r, double *g, double *b)
{
if (i%2==0) {
*r = 0;
*g = (sin(((double)t/200)*(2*M_PI))+1)/2;
*b = (sin(((double)(t-100)/200)*(2*M_PI))+1)/2;
} else {
*r = 0;
*g = (sin(((double)(t-200)/400)*(2*M_PI))+1)/2;
*b = (sin(((double)t/400)*(2*M_PI))+1)/2;
}
}
// crossfade rb
void programF(int i, int t, double *r, double *g, double *b)
{
if (i%2==0) {
*r = (sin(((double)t/200)*(2*M_PI))+1)/2;
*g =0;
*b = (sin(((double)(t-100)/200)*(2*M_PI))+1)/2;
} else {
*r = (sin(((double)(t-200)/400)*(2*M_PI))+1)/2;
*g = 0;
*b = (sin(((double)t/400)*(2*M_PI))+1)/2;
}
}
void drawScreen(SDL_Surface* screen, int t, FILE* fp)
{
@ -325,6 +384,10 @@ int main(int argc, char* argv[])
case SDLK_i: program = programI; break;
case SDLK_o: program = programO; break;
case SDLK_p: program = programP; break;
case SDLK_a: program = programA; break;
case SDLK_s: program = programS; break;
case SDLK_d: program = programD; break;
case SDLK_f: program = programF; break;
case SDLK_ESCAPE: quit = 1; break;
default: break;
}