engine/main.c

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#define SAVE_SCREEN
#include "engine.h"

//INT_HANDLER save_int_1;

static void CALLBACK cleanup(void);
//{{{
void _main(void)
{
    int loaded_set;
    show_title_screen();
    initialize();
    loaded_set = pick_set();
    while(loaded_set) {
        level_advance(0);
        game_loop();
        loaded_set = pick_set();
    }
}
//}}}
short saved_between_delay, saved_init_delay;
//{{{
void initialize(void)
{
    saved_init_delay = OSInitKeyInitDelay( 90 );
    saved_between_delay = OSInitBetweenKeyDelay( 30 );
    clrscr();
    GrayOn();
    atexit(cleanup);
}
//}}}
//{{{
static void CALLBACK cleanup(void)
{
    GrayOff();
    if(current_map.t) {
        free(current_map.t);
        current_map.t = NULL;
    }
    OSInitKeyInitDelay(saved_init_delay);
    OSInitBetweenKeyDelay(saved_between_delay);
}
//}}}

//{{{
void show_title_screen(void)
{
    clrscr();
    draw_string("SKye", 55, 20, F_8x10);
    draw_string(VERSION_STRING, 60, 31, F_4x6);
    draw_string("By Jim Babcock", 30, 40, F_4x6);
    draw_string("Based on Kye by Dillon Collins", 30, 47, F_4x6);
    draw_string("and on Kye by Colin Garbutt", 30, 54, F_4x6);
    read_char();
}
//}}}
//{{{
int show_splash(void)
{
    char buf[64];
    int font;
    clear_screen();
    sprintf(buf, "Level %i:", current_level_num+1);
    draw_string(buf, SCREEN_CENTER-DrawStrWidth(buf, F_4x6)/2, 20, F_4x6);
    if(strlen(current_map.name) <= 19) // Name short enough for 8x10 font
        font = F_8x10;
    else if(strlen(current_map.name) <= 26) // Name short enough for 6x8 font
        font = F_6x8;
    else                               // Very long name! Use 4x6.
        font = F_4x6;
    
    draw_string(current_map.name,
        SCREEN_CENTER - DrawStrWidth(current_map.name,font)/2, 28, font);
    
    if(strlen(current_map.author) > 0) {
        sprintf(buf, "By %s", current_map.author);
        draw_string(buf, SCREEN_CENTER-DrawStrWidth(buf, F_4x6)/2, 44, F_4x6);
    }
    
    draw_string("+",                      3, 80, F_4x6);
    draw_string("Next level",             8, 80, F_4x6);
    draw_string("-",                      3, 86, F_4x6);
    draw_string("Previous level",         8, 86, F_4x6);
    draw_string("Press any other key to begin", 3, 92, F_4x6);
    return read_char();
}
//}}}

//{{{
void message(const char *message)
{
    int in;
    int width = DrawStrWidth(message, F_4x6);
    int left = SCREEN_CENTER - width/2 - 5;
    
    draw_rect(left, 35, width+10, 10);
    draw_string(message, left+5, 37, F_4x6);
    
    do {
        in = read_char() & ~0x800;
        if(in == KEY_LEFT || in == KEY_RIGHT ||
           in == KEY_UP || in == KEY_DOWN)
            continue;
        else
            break;
    } while(1);
}
//}}}

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