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- #include <fastgraf.h>
- #include <stdio.h>
- #include <stdlib.h>
-
- void main(void);
-
- #define VISUAL 0
- #define HIDDEN 1
-
- void main()
- {
- int new_mode, old_mode;
- int frame, offset;
- int i;
-
- /* initialize the video environment */
-
- new_mode = fg_bestmode(320,200,2);
- if (new_mode < 0 || new_mode == 12) {
- printf("This program requires a 320 ");
- printf("x 200 color graphics mode.\n");
- exit(1);
- }
- old_mode = fg_getmode();
- fg_setmode(new_mode);
- fg_allocate(HIDDEN);
-
- /* draw the background in the upper left corner */
-
- fg_setpage(HIDDEN);
- fg_setcolor(1);
- fg_rect(0,95,0,49);
- fg_setcolor(15);
- fg_move(48,25);
- fg_ellipse(20,20);
-
- /* copy it to the center of the visual page */
-
- fg_transfer(0,95,0,49,112,124,HIDDEN,VISUAL);
-
- /* slide the object across the background three times */
-
- fg_setcolor(10);
- for (i = 0; i < 36; i++) {
- frame = i % 12;
- offset = 10 * frame - 10;
- fg_transfer(0,95,20,29,112,105,HIDDEN,HIDDEN);
- fg_rect(112+offset,131+offset,96,105);
- fg_transfer(112,207,96,105,112,105,HIDDEN,VISUAL);
- fg_waitfor(2);
- }
-
- /* restore the original video mode and return to DOS */
-
- fg_freepage(HIDDEN);
- fg_setmode(old_mode);
- fg_reset();
- }