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#ifndef DRAW_H
#define DRAW_H
void add_sparkle(void)
{
sparkle_instance *new = ec_malloc(sizeof(sparkle_instance));
new->loc.x = SCREEN_WIDTH + 80;
new->loc.y = (rand() % (SCREEN_HEIGHT + sparkle_height)) - sparkle_height;
new->frame = 0;
new->frame_mov = 1;
new->speed = 10 + (rand() % 30);
new->layer = rand() % 2;
LIST_INSERT_HEAD(&sparkle_list, new, entries);
}
void add_cat(unsigned int x, unsigned int y)
{
cat_instance *new = ec_malloc(sizeof(cat_instance));
new->loc.x = x;
new->loc.y = y;
LIST_INSERT_HEAD(&cat_list, new, entries);
}
void add_rainbow(unsigned int x, unsigned int y)
{
rainbow_instance *new = ec_malloc(sizeof(rainbow_instance));
new->loc.x = x;
new->loc.y = y;
new->sprite = rainbow_sprite;
LIST_INSERT_HEAD(&rainbow_list, new, entries);
}
void update_rainbows()
{
cat_instance *c;
/* rainbows need to be placed according to the cat position (which changes constantly) */
LIST_FOREACH(c, &cat_list, entries)
{
add_rainbow((SCREEN_WIDTH - rainbow_width) / 2 - OFFSET /* Default position in the center */
- ((SCREEN_WIDTH - cat_width) / 2 - c->loc.x), /* Plus the amount the cat is off the center */
(SCREEN_HEIGHT - rainbow_height) / 2 /* Default position in the center */
- ((SCREEN_HEIGHT - cat_height) / 2 - c->loc.y));/* Plus the amount the cat is off the center */
}
rainbow_instance *r, *rtmp;
/* update the position of each rainbow left */
LIST_FOREACH_SAFE(r, &rainbow_list, entries, rtmp)
{
r->loc.x -= rainbow_width;
/* if rainbow is off screen, delete and free() it */
if ((r->loc.x + rainbow_width) < 0)
{
LIST_REMOVE(r, entries);
free(r);
}
}
}
void update_sparkles()
{
/* ensure screen has enough sparkles at all times */
sparkle_spawn_counter += rand() % SCREEN_HEIGHT;
while (sparkle_spawn_counter >= 1000)
{
add_sparkle();
sparkle_spawn_counter -= 1000;
}
sparkle_instance *s, *stmp;
LIST_FOREACH_SAFE(s, &sparkle_list, entries, stmp)
{
/* move sparkle left */
s->loc.x -= s->speed;
s->frame += s->frame_mov;
/* reset sparkle frame */
if (s->frame + 1 >= sparkle_count || s->frame < 1){s->frame_mov = 0 - s->frame_mov;}
/* if sparkle offscreen, delete it */
if ((s->loc.x + sparkle_width) < 0)
{
LIST_REMOVE(s, entries);
free(s);
}
}
}
void handle_sine()
{
cat_instance *c;
LIST_FOREACH(c, &cat_list, entries)
{
/* sine magic */
double pos = (SCREEN_HEIGHT - cat_height)/2 * sin((2*PI*444444)*t);
c->loc.y = ((SCREEN_HEIGHT - cat_height)/2 - pos);
}
t += 20;
}
void draw_cats()
{
cat_instance* c;
LIST_FOREACH(c, &cat_list, entries)
{
/* source sprite dimensions */
SDL_Rect srcrect = {cat_sprite * cat_width, 0, cat_width, cat_height};
/* dimensions of destination rectangle */
SDL_Rect dstrect = {c->loc.x, c->loc.y, cat_width*cat_size, cat_height*cat_size};
SDL_RenderCopy(renderer, cat_texture, &srcrect, &dstrect);
}
}
void draw_rainbows()
{
rainbow_instance* r;
LIST_FOREACH(r, &rainbow_list, entries)
{
/* source sprite dimensions */
SDL_Rect srcrect = {r->sprite * rainbow_width, 0, rainbow_width, rainbow_height};
/* dimensions of destination rectangle */
SDL_Rect dstrect = {r->loc.x, r->loc.y, rainbow_width*cat_size, rainbow_height*cat_size};
SDL_RenderCopy(renderer, rainbow_texture, &srcrect, &dstrect);
}
}
void draw_sparkles()
{
sparkle_instance* s;
LIST_FOREACH(s, &sparkle_list, entries)
{
/* source sprite dimensions */
SDL_Rect srcrect = {sparkle_sprite * sparkle_width, 0, sparkle_width, sparkle_height};
/* dimensions of destination rectangle */
SDL_Rect dstrect = {s->loc.x, s->loc.y, sparkle_width*cat_size, sparkle_height*cat_size};
SDL_RenderCopy(renderer, sparkle_texture, &srcrect, &dstrect);
}
}
#endif
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