brmlab/ledbar
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add morse code program

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This commit is contained in:
Pavol Rusnak 2010-12-04 18:23:48 +01:00
parent b807bfb012
commit 0981650ee6
1 changed files with 27 additions and 1 deletions
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28
ledbar.c
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@ -62,7 +62,7 @@ void programW(int i, int t, double *r, double *g, double *b)
void programE(int i, int t, double *r, double *g, double *b) void programE(int i, int t, double *r, double *g, double *b)
{ {
static float pos = BOXES/2; static float pos = BOXES/2;
static float dir = 0.001; static float dir = 0.01;
*r = max(1 - fabsl((pos-i)/BOXES)*4, 0); *r = max(1 - fabsl((pos-i)/BOXES)*4, 0);
*g = 0; *g = 0;
*b = 0; *b = 0;
@ -70,6 +70,30 @@ void programE(int i, int t, double *r, double *g, double *b)
if (pos < 0 || pos > BOXES) dir = -dir; if (pos < 0 || pos > BOXES) dir = -dir;
} }
// binary
void programR(int i, int t, double *r, double *g, double *b)
{
t /= 10;
*r = 0;
*g = t & (1<<(BOXES-i-1)) ? 1 : 0;
*b = 0;
}
// morse code
void programT(int i, int t, double *r, double *g, double *b)
{
// . -> 'x' - -> 'xxx' interelement -> ' '
// interletter -> ' ' interword -> ' '
// static const char *str = "brmlab rulez ";
static const char *str = "xxx x x x x xxx x xxx xxx x xxx x x x xxx xxx x x x x xxx x x x xxx x xxx x x x xxx xxx x x ";
static int len;
len = strlen(str);
t /= 50;
*r = 0;
*g = str[(i+t)%len]!=' ' ? 1 : 0;
*b = 0;
}
void drawScreen(SDL_Surface* screen, int t) void drawScreen(SDL_Surface* screen, int t)
{ {
@ -123,6 +147,8 @@ int main(int argc, char* argv[])
case SDLK_q: program = programQ; break; case SDLK_q: program = programQ; break;
case SDLK_w: program = programW; break; case SDLK_w: program = programW; break;
case SDLK_e: program = programE; break; case SDLK_e: program = programE; break;
case SDLK_r: program = programR; break;
case SDLK_t: program = programT; break;
case SDLK_ESCAPE: quit = 1; break; case SDLK_ESCAPE: quit = 1; break;
default: break; default: break;
} }