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#include "sparkles.h"
#include "display_subsystem.h"
#include "rockdodger_globals.h"
#include "engine_exhaust.h"
#include "mood_item.h"
#include "sound.h"
#include <math.h>
#define END_LEVEL_MARGIN 0.98
/*! \brief Draw the black infinity of space
*
* The space, the final frontier....
*/
void draw_infinite_black() {
float t;
float l = level - (int) level;
Uint32 c = 0;
if((l > END_LEVEL_MARGIN) && (state == GAME_PLAY)) {
t = 4 * (1 - (1 - l) / (1 - END_LEVEL_MARGIN));
if(last_levelup_snd < level) {
last_levelup_snd = ceilf(level);
play_sound(4);
}
switch ((int) t) {
case 0:
// ramp up red
c = SDL_MapRGB(surf_screen->format, (int) (255 * t), 0, 0);
break;
case 1:
// ramp down red, ramp up green
c = SDL_MapRGB(surf_screen->format, (int) (255 * (1 - t)), (int) (255 * (t - 1)), 0);
break;
case 2:
// ramp down green, ramp up blue
c = SDL_MapRGB(surf_screen->format, 0, (int) (255 * (3 - t)), (int) (255 * (t - 3)));
break;
case 3:
// ramp down blue
c = SDL_MapRGB(surf_screen->format, 0, 0, (int) (255 * (4 - t)));
break;
}
}
SDL_FillRect(surf_screen, NULL, c);
}
void draw_ghostly_rock_dodger(SDL_Surface *surf_t_rock, SDL_Surface *surf_t_dodger) {
SDL_Rect src, dest;
src.w = surf_t_rock->w;
src.h = surf_t_rock->h;
src.x = 0;
src.y = 0;
dest.w = src.w;
dest.h = src.h;
dest.x = (xsize - src.w) / 2 + cosf(fadetimer / 6.5) * 10;
dest.y = (ysize / 2 - src.h) / 2 + sinf(fadetimer / 5) * 10;
SDL_SetAlpha(surf_t_rock, SDL_SRCALPHA, (int) (170 + 85 * sinf(fadetimer)));
SDL_BlitSurface(surf_t_rock, &src, surf_screen, &dest);
src.w = surf_t_dodger->w;
src.h = surf_t_dodger->h;
dest.w = src.w;
dest.h = src.h;
dest.x = (xsize - src.w) / 2 + sinf(fadetimer / 6.5) * 10;
dest.y =
(ysize / 2 - src.h) / 2 + surf_t_rock->h + 20 +
sinf((fadetimer + 1) / 5) * 10;
SDL_SetAlpha(surf_t_dodger, SDL_SRCALPHA,
(int) (170 + 85 * sinf(fadetimer - 1.0)));
SDL_BlitSurface(surf_t_dodger, &src, surf_screen, &dest);
}
void drawdots(SDL_Surface * s) {
// Draw the background stars (aka space dots - they can't possibly be stars
// because then we'd be moving past them at something like 10,000 times the
// speed of light)
draw_space_dots(current_spacedot_engine, s);
// Draw the mood item...
draw_mood_item(s);
// Draw all the engine dots
SDL_LockSurface(s);
draw_engine_dots(s);
// Draw all outstanding bang dots and plumes
draw_sparkles(s);
SDL_UnlockSurface(s);
}
void draw_background_objects() {
// Draw a fully black background
draw_infinite_black();
// Draw the background dots
drawdots(surf_screen);
}
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