void error_out (char * text)
{
set_video_mode (3);
dos_print (text);
exit (EXIT_SUCCESS);
}
void dos_printf( const char *format, ... )
{
static char dbg_buf[256];
va_list args;
va_start( args, format );
vsnprintf( dbg_buf, sizeof( dbg_buf ), format, args );
// Convert to DOS string
dbg_buf[ strlen( dbg_buf ) ] = '\$';
dos_print( dbg_buf );
va_end( args );
}
trap_version TRAPENTRY TrapInit( char *parm, char *err, bool remote )
/*******************************************************************/
{
trap_version ver;
char ver_msg[] = "CauseWay API version = 0.00\r\n$";
err[0] = '\0'; /* all ok */
ver.major = TRAP_MAJOR_VERSION;
ver.minor = TRAP_MINOR_VERSION;
ver.remote = FALSE;
RedirectInit();
RealNPXType = NPXType();
HBRKInit();
WatchCount = 0;
FakeBreak = FALSE;
XVersion = GrabVectors();
ver_msg[23] = XVersion / 256 + '0';
ver_msg[25] = ( XVersion % 256 ) / 10 + '0';
ver_msg[26] = XVersion % 256 % 10 + '0';
dos_print( ver_msg );
return( ver );
}
int main(int argc, char *argv[])
{
/* if (argc > 0)
{
while (argc > 0)
{
dos_print ("Unknown Argument: ");
dos_print (makefp argv[argc]);
argc--;
}
return (0);
}
*/
init_random ();
load_shapes ();
demo_res ( Mode_320x200, 320, 200 );
demo_res ( Mode_320x400, 320, 400 );
demo_res ( Mode_360x200, 360, 200 );
demo_res ( Mode_360x400, 360, 400 );
demo_res ( Mode_320x240, 320, 240 );
demo_res ( Mode_320x480, 320, 480 );
demo_res ( Mode_360x240, 360, 240 );
demo_res ( Mode_360x480, 360, 480 );
page_demo ();
set_video_mode (3);
dos_print ("This Mode X Demo is Finished");
return (0);
}
void page_demo ()
{
char *Error1 = "Failure during SET_VGA_MODEX (0, 320, 200, 2) call";
int Last_Objects[2], Visible_Objects;
int Screen_X = 384;
int Screen_Y = 224;
int x, y, z;
int c, dc;
int x1, y1, x2, y2;
int Sprite_X, Sprite_Y;
int Current_Page;
int New_X, New_Y;
int View_X, View_Y, View_Max, View_Cnt, View_XD, View_YD;
int Set_Color, Prev_Color, S_Dir, P_Dir;
int Demo_Running = True;
int redo, code;
int pee;
pee = set_vga_modex(Mode_320x200, Screen_X, Screen_Y, 3);
if ( pee > 0)
{
set_video_mode (3);
dos_print (Error1);
fprintf(stdout, "return value is %d\n", pee);
//error_out (Error1);
exit (EXIT_SUCCESS);
}
set_active_page (0);
clear_vga_screen (c_BLACK);
print_str ("This is a Test of the Following Functions:", 99, 10, 9, c_bWHITE, c_BLACK);
draw_line (10, 18, 350, 18, c_YELLOW);
print_str ("SET_ACTIVE_PAGE", 99, 10, 20, c_bBLUE, c_BLACK);
print_str ("SET_DISPLAY_PAGE", 99, 10, 30, c_GREEN, c_BLACK);
print_str ("SET_DAC_REGISTER", 99, 10, 40, c_RED, c_BLACK);
print_str ("CLEAR_VGA_SCREEN", 99, 10, 50, c_CYAN, c_BLACK);
print_str ("TDRAW_BITMAP", 99, 10, 60, c_PURPLE, c_BLACK);
print_str ("COPY_PAGE", 99, 10, 70, c_GREEN, c_BLACK);
print_str ("COPY_BITMAP", 99, 10, 80, c_CYAN, c_BLACK);
print_str ("GPRINTC", 99, 10, 90, c_BLUE, c_BLACK);
print_str ("TGPRINTC", 99, 10, 100, c_GREEN, c_BLACK);
print_str ("SET_WINDOW", 99, 10, 110, c_RED, c_BLACK);
print_str ("VIRTUAL SCREEN SIZES", 20, 190, 20, c_bBLUE, c_BLACK);
print_str (" SMOOTH SCROLLING", 20, 190, 30, c_GREEN, c_BLACK);
print_str (" SPRITE ANIMATION", 20, 190, 40, c_CYAN, c_BLACK);
print_str (" PAGE FLIPPING", 20, 190, 50, c_RED, c_BLACK);
print_str (" COLOR CYCLING", 20, 190, 60, c_PURPLE, c_BLACK);
for (x = 0; x <=60; x++)
{
set_dac_register (50 + x, 3 + x, 0, 60 - x);
set_dac_register (150 + x, 3 + x, 0, 60 - x);
}
c = 0;
dc = 1;
for (x = 0; x <= (Screen_X / 2); x++)
{
draw_line (Screen_X / 2 - 1, Screen_Y / 4, x, Screen_Y - 1, c + 50);
draw_line (Screen_X / 2, Screen_Y / 4, Screen_X - x - 1, Screen_Y - 1, c + 50);
c+= dc;
if ((c == 0) || (c == 60) ) { dc = -dc;}
}
tprint_str ("Press <ANY KEY> to Continue", 99, 72, 190, c_bWHITE);
tprint_str ("< > = Faster < > = Slower", 99, 72, 204, c_bGREEN);
tprint_str ("< > = Fewer Shapes < > = More Shapes", 99, 32, 218, c_bCYAN);
tgprintc (43, 80, 204, c_YELLOW);
tgprintc (45, 200, 204, c_YELLOW);
tgprintc (25, 40, 218, c_YELLOW);
tgprintc (24, 200, 218, c_YELLOW);
copy_page (0, 1);
copy_page (0, 2);
for (x = 0; x < MAX_SPRITES; x++)
{
do {
Obj[x].X_Dir = random_int(7) - 3;
Obj[x].Y_Dir = random_int(7) - 3;
} while ( (Obj[x].X_Dir == 0) && (Obj[x].Y_Dir == 0) );
Obj[x].Shape = x % MAX_SHAPES;
Sprite_X = Img[Obj[x].Shape].X_Width;
Sprite_Y = Img[Obj[x].Shape].Y_Width;
Obj[x].X_pos = 1 + random_int(Screen_X - Sprite_X - 2);
Obj[x].Y_pos = 1 + random_int(Screen_Y - Sprite_Y - 2);
Obj[x].Last_X[0] = Obj[x].X_pos;
Obj[x].Last_X[1] = Obj[x].X_pos;
Obj[x].Last_Y[0] = Obj[x].Y_pos;
Obj[x].Last_Y[1] = Obj[x].Y_pos;
}
Current_Page = 0;
View_X = 0;
View_Y = 0;
View_Max = 3;
View_Cnt = 0;
View_XD = 1;
View_YD = 1;
Set_Color = 3;
S_Dir = 1;
Prev_Color = 0;
P_Dir = 1;
Visible_Objects = MAX_SPRITES / 2;
Last_Objects[0] = 0;
Last_Objects[1] = 0;
while (Demo_Running)
{
set_active_page (Current_Page);
/* Erase Old Images */
for (x = 0; x <= Last_Objects[Current_Page]; x++)
{
z = 2;
y = Obj[x].Shape;
x1 = Obj[x].Last_X[Current_Page];
y1 = Obj[x].Last_Y[Current_Page];
x2 = x1 + Img[y].X_Width -1;
y2 = y1 + Img[y].Y_Width -1;
x1 = x1 & 0xfffc;
x2 = x2 | 0x0003;
copy_bitmap (z, x1, y1, x2, y2, Current_Page, x1, y1);
}
/* Draw new images */
for (x = 0; x <= Visible_Objects; x++)
{
Sprite_X = Img[Obj[x].Shape].X_Width;
Sprite_Y = Img[Obj[x].Shape].Y_Width;
/* Move Sprite */
do
{
redo = False;
New_X = Obj[x].X_pos + Obj[x].X_Dir;
if (( New_X < 0 ) || (New_X + Sprite_X > Screen_X) )
{
Obj[x].X_Dir = -Obj[x].X_Dir;
if (random_int(20) == 1)
{
do
{
Obj[x].X_Dir = random_int(7) - 3;
Obj[x].Y_Dir = random_int(7) - 3;
} while ( (Obj[x].X_Dir == 0) && (Obj[x].Y_Dir == 0) );
redo = True;
}
}
} while (redo);
Obj[x].X_pos = Obj[x].X_pos + Obj[x].X_Dir;
do
{
redo = False;
New_Y = Obj[x].Y_pos + Obj[x].Y_Dir;
if ( (New_Y < 0) || (New_Y + Sprite_Y > Screen_Y) )
{
Obj[x].Y_Dir = -Obj[x].Y_Dir;
if (random_int(20) == 1)
{
do
{
Obj[x].X_Dir = random_int(7) - 3;
Obj[x].Y_Dir = random_int(7) - 3;
} while ( (Obj[x].X_Dir == 0) && (Obj[x].Y_Dir == 0) );
redo = True;
}
}
} while (redo);
Obj[x].Y_pos = Obj[x].Y_pos + Obj[x].Y_Dir;
/* Draw Sprite */
tdraw_bitmap ((char far*) &Img[Obj[x].Shape], Obj[x].X_pos, Obj[x].Y_pos, Sprite_X, Sprite_Y);
Obj[x].Last_X[Current_Page] = Obj[x].X_pos;
Obj[x].Last_Y[Current_Page] = Obj[x].Y_pos;
}
Last_Objects[Current_Page] = Visible_Objects;
/* Pan Screen Back & Forth */
View_Cnt++;
if (View_Cnt >= View_Max)
{
View_X+= View_XD;
if ( (View_X == 0) || (View_X == 39) ) {View_XD = -View_XD;}
if (View_XD < 0)
{
View_Y+= View_YD;
if ( (View_Y == 0) || (View_Y == 39) ) {View_YD = -View_YD;}
}
set_window (Current_Page, View_X, View_Y);
View_Cnt = 0;
}
else
{
set_display_page (Current_Page);
}
/* Cycle Colors */
set_dac_register (50 + Prev_Color, 3 + Prev_Color, 0, 60 - Prev_Color);
set_dac_register (50 + Set_Color, Set_Color, 10, 63 - Set_Color);
set_dac_register (150 + Prev_Color, 3 + Prev_Color, 0, 60 - Prev_Color);
set_dac_register (150 + Set_Color, 63, 63, Set_Color);
Set_Color+= S_Dir;
if ( (Set_Color == 60) || (Set_Color == 0) ) {S_Dir = -S_Dir;}
Prev_Color+= P_Dir;
if ( (Prev_Color == 60) || (Prev_Color == 0) ) {P_Dir = -P_Dir;}
/* Check for Keystroke */
Current_Page = Current_Page ^ 0x01;
code = scan_keyboard ();
if (code == Ky_ESC) {Demo_Running = False;}
if (code == Ky_Plus)
{
if (View_Max < 12) {View_Max++;}
}
if (code == Ky_Minus)
{
if (View_Max > 1) {View_Max--;}
if (View_Cnt >= View_Max) {View_Cnt = 0;}
}
if (code == Ky_Up)
{
if (Visible_Objects < MAX_SPRITES-1) {Visible_Objects++;}
}
if (code == Ky_Down)
{
if (Visible_Objects > 0) {Visible_Objects--;}
}
}
}
