diff options
Diffstat (limited to 'src/modules/stars')
| -rw-r--r-- | src/modules/stars/stars.c | 70 |
1 files changed, 37 insertions, 33 deletions
diff --git a/src/modules/stars/stars.c b/src/modules/stars/stars.c index 033794b..4e0b4fd 100644 --- a/src/modules/stars/stars.c +++ b/src/modules/stars/stars.c @@ -134,6 +134,7 @@ static void stars_render_fragment(til_module_context_t *context, til_stream_t *s struct points* last_ptr=NULL; float x, y, pos_x, pos_y, rot_x, rot_y, opacity, x_mult, y_mult, max_radius; int width = fragment->frame_width, height = fragment->frame_height; + float dt = ((float)(ticks - context->last_ticks)) * .025f; if(width>height) { x_mult=1.f; @@ -199,48 +200,51 @@ static void stars_render_fragment(til_module_context_t *context, til_stream_t *s } - iterator->z += 0.01; + iterator->z += 0.01 * dt; last_ptr=iterator; iterator=iterator->next; } - // add stars at horizon - for(int i=0; i<rand_r(&ctxt->seed)%16; i++){ - tmp_ptr = malloc(sizeof(struct points)); - if (!tmp_ptr) - break; - tmp_ptr->x = get_random_unit_coord(&ctxt->seed); - tmp_ptr->y = get_random_unit_coord(&ctxt->seed); - tmp_ptr->z = 0.01; - tmp_ptr->next = ctxt->points; - ctxt->points = tmp_ptr; - } + if (dt > 0.f) { + // add stars at horizon + for(int i=0; i<rand_r(&ctxt->seed)%16; i++){ + tmp_ptr = malloc(sizeof(struct points)); + if (!tmp_ptr) + break; + tmp_ptr->x = get_random_unit_coord(&ctxt->seed); + tmp_ptr->y = get_random_unit_coord(&ctxt->seed); + tmp_ptr->z = 0.01; + tmp_ptr->next = ctxt->points; + ctxt->points = tmp_ptr; + } - if (!til_stream_tap_context(stream, context, NULL, &ctxt->taps.rot_angle)) - *ctxt->rot_angle+=*ctxt->rot_rate; + if (!til_stream_tap_context(stream, context, NULL, &ctxt->taps.rot_angle)) + *ctxt->rot_angle += (*ctxt->rot_rate * dt); - if (!til_stream_tap_context(stream, context, NULL, &ctxt->taps.rot_rate)) { - // handle rotation parameters - if(*ctxt->rot_angle>M_PI_4) - *ctxt->rot_rate=*ctxt->rot_rate-ctxt->rot_adj; - else - *ctxt->rot_rate=*ctxt->rot_rate+ctxt->rot_adj; - } + if (!til_stream_tap_context(stream, context, NULL, &ctxt->taps.rot_rate)) { + // handle rotation parameters + if(*ctxt->rot_angle>M_PI_4) + *ctxt->rot_rate = *ctxt->rot_rate - (ctxt->rot_adj * dt); + else + *ctxt->rot_rate = *ctxt->rot_rate + (ctxt->rot_adj * dt); + } - /* there's no automation of offset_angle */ - (void) til_stream_tap_context(stream, context, NULL, &ctxt->taps.offset_angle); + /* there's no automation of offset_angle */ + (void) til_stream_tap_context(stream, context, NULL, &ctxt->taps.offset_angle); - // handle offset parameters - if (!til_stream_tap_context(stream, context, NULL, &ctxt->taps.offset_x)) { - float tmp_x = (*ctxt->offset_x*cosf(*ctxt->offset_angle))- - (*ctxt->offset_y*sinf(*ctxt->offset_angle)); - *ctxt->offset_x = tmp_x; - } + // handle offset parameters + if (!til_stream_tap_context(stream, context, NULL, &ctxt->taps.offset_x)) { + float tmp_x = (*ctxt->offset_x*cosf(*ctxt->offset_angle * dt))- + (*ctxt->offset_y*sinf(*ctxt->offset_angle * dt)); + *ctxt->offset_x = tmp_x; + } + + if (!til_stream_tap_context(stream, context, NULL, &ctxt->taps.offset_y)) { + float tmp_y = (*ctxt->offset_x*sinf(*ctxt->offset_angle * dt))+ + (*ctxt->offset_y*cosf(*ctxt->offset_angle * dt)); + *ctxt->offset_y = tmp_y; + } - if (!til_stream_tap_context(stream, context, NULL, &ctxt->taps.offset_y)) { - float tmp_y = (*ctxt->offset_x*sinf(*ctxt->offset_angle))+ - (*ctxt->offset_y*cosf(*ctxt->offset_angle)); - *ctxt->offset_y = tmp_y; } } |