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/* intro.c - Copyright (C) 2001-2002 Jacob Kroon, see COPYING for details */
#include <string.h>
#include <SDL_events.h>
#include <SDL_timer.h>
#include "video.h"
#include "font.h"
#include "tuxpuck.h"
/* defines */
#define FADE_SPEED ((float)100.0)
/* externals */
extern unsigned char title_jpg[];
extern unsigned char logo_jpg[];
extern unsigned char monos_fnt[];
/* functions */
void run_intro(void)
{
Uint8 loop = 1, state = 0;
Uint32 elapsed_time = 0;
float alpha = 0.0;
SDL_Event event;
SDL_Surface *sdl_title = NULL, *sdl_logo = NULL;
SDL_Rect text_rect, logo_rect;
Font *font = NULL;
Timer *timer = NULL;
char txt_coder[] = "written by Jacob Kroon";
char txt_gfx[] = "graphics by m0ns00n";
char txt_version[] = "v" _VERSION;
sdl_title = video_create_jpg_surface(title_jpg, NULL);
sdl_logo = video_create_jpg_surface(logo_jpg, NULL);
logo_rect.x = 0;
logo_rect.y = SCREEN_H / 2 - sdl_logo->h / 2 - 9;
logo_rect.w = logo_rect.h = 0;
video_box_up(sdl_title, 8000);
video_save();
font = font_create(monos_fnt, NULL);
font_set_color(font, 170, 140, 110);
font_set_pen(font, 70, logo_rect.y + sdl_logo->h);
timer = timer_create();
timer_reset(timer);
while (loop) {
while (SDL_PollEvent(&event))
if (event.type == SDL_MOUSEBUTTONDOWN)
loop = 0;
timer_update(timer);
timer_reset(timer);
elapsed_time = timer_elapsed(timer);
switch (state) {
case 0:
alpha += FADE_SPEED * 2.0 * elapsed_time / 1000.0;
if (alpha > 255.0)
alpha = 255;
video_erase(&logo_rect);
video_set_alpha(sdl_logo, (Uint8) alpha);
video_blit(sdl_logo, NULL, &logo_rect);
font_set_alpha(font, alpha);
video_erase(&text_rect);
font_print(font, txt_version, &text_rect);
if (alpha == 255.0) {
alpha = 0.0;
state = 1;
font_set_pen(font,
SCREEN_W / 2 - font_calc_width(font,
txt_coder) / 2,
SCREEN_H - 80);
memset(&text_rect, 0, sizeof(SDL_Rect));
}
break;
case 1:
alpha += FADE_SPEED * elapsed_time / 1000.0;
if (alpha > 255.0) {
state = 2;
alpha = 255.0;
}
font_set_alpha(font, (Uint8) alpha);
video_erase(&text_rect);
font_print(font, txt_coder, &text_rect);
break;
case 2:
alpha -= FADE_SPEED * elapsed_time / 1000.0;
if (alpha < 0.0) {
state = 3;
alpha = 0.0;
}
font_set_alpha(font, (Uint8) alpha);
video_erase(&text_rect);
font_print(font, txt_coder, &text_rect);
if (alpha == 0.0)
font_set_pen(font,
SCREEN_W / 2 - font_calc_width(font,
txt_gfx) / 2,
SCREEN_H - 80);
break;
case 3:
alpha += FADE_SPEED * elapsed_time / 1000.0;
if (alpha > 255.0) {
state = 4;
alpha = 255.0;
}
font_set_alpha(font, (Uint8) alpha);
video_erase(&text_rect);
font_print(font, txt_gfx, &text_rect);
break;
case 4:
alpha -= FADE_SPEED * elapsed_time / 1000.0;
if (alpha < 0.0) {
state = 5;
alpha = 0.0;
}
font_set_alpha(font, (Uint8) alpha);
video_erase(&text_rect);
font_print(font, txt_gfx, &text_rect);
if (alpha == 0.0)
font_set_pen(font,
SCREEN_W / 2 - font_calc_width(font,
txt_coder) / 2,
SCREEN_H - 80);
break;
case 5:
alpha += elapsed_time / 1000.0;
if (alpha > 5.0) {
state = 1;
alpha = 0.0;
}
break;
}
video_update();
SDL_Delay(SLEEP);
}
SDL_FreeSurface(sdl_title);
SDL_FreeSurface(sdl_logo);
font_free(font);
timer_free(timer);
}
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