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Print speed and parameters on changes

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This commit is contained in:
Matthias Schiffer 2016-02-04 19:29:49 +01:00
parent 85cf184935
commit 05e2f21d27
1 changed files with 22 additions and 7 deletions
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29
glslview.c
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@ -96,7 +96,15 @@ static void update(void) {
unsigned ticks = SDL_GetTicks();
current_time += speed * (ticks - previous_ticks);
previous_ticks = ticks;
}
static void set_speed(float v) {
speed = v;
printf("speed: %f\n", v);
}
static void print_params(void) {
printf("params: %i %i %i\n", (int)param0, (int)param1, (int)param2);
}
static void handle_input(const char *input) {
@ -113,31 +121,32 @@ static void handle_input(const char *input) {
case 'R':
param0 = param1 = param2 = 0;
print_params();
break;
case '+':
speed *= 1.1;
set_speed(speed * 1.1);
break;
case '-':
speed /= 1.1;
set_speed(speed / 1.1);
break;
case '=':
if (speed < 0)
speed = -1.0;
set_speed(-1.0);
else
speed = 1.0;
set_speed(1.0);
break;
case '<':
if (speed > 0)
speed = -speed;
set_speed(-speed);
break;
case '>':
if (speed < 0)
speed = -speed;
set_speed(-speed);
}
}
}
@ -175,26 +184,32 @@ int main(int argc, char *argv[]) {
switch (e.key.keysym.sym) {
case SDLK_PAGEDOWN:
param0++;
print_params();
break;
case SDLK_PAGEUP:
param0--;
print_params();
break;
case SDLK_RIGHT:
param1++;
print_params();
break;
case SDLK_LEFT:
param1--;
print_params();
break;
case SDLK_DOWN:
param2++;
print_params();
break;
case SDLK_UP:
param2--;
print_params();
break;
case SDLK_ESCAPE:
@ -207,7 +222,7 @@ int main(int argc, char *argv[]) {
break;
case SDL_MOUSEWHEEL:
speed /= pow(1.1, e.wheel.y);
set_speed(speed / pow(1.1, e.wheel.y));
break;
case SDL_QUIT: