mirror of https://github.com/cc65/cc65.git
110 lines
2.8 KiB
C
110 lines
2.8 KiB
C
/*
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** Fancy hello world program using cc65.
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**
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** Ullrich von Bassewitz (ullrich@von-bassewitz.de)
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**
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** TEST version for atari5200 conio, using all four colors
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <conio.h>
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#include <joystick.h>
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/*****************************************************************************/
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/* Data */
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/*****************************************************************************/
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static const char Text [] = "Hello world!";
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static unsigned char colors[] = { COLOR_WHITE, COLOR_GREEN, COLOR_RED, COLOR_BLACK };
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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int main (void)
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{
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unsigned char XSize, YSize;
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unsigned char PosY;
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unsigned char i = 0;
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/* Set screen colors */
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(void) textcolor (COLOR_WHITE);
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(void) bordercolor (COLOR_BLACK);
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(void) bgcolor (COLOR_BLACK);
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/* Clear the screen, put cursor in upper left corner */
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clrscr ();
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/* Ask for the screen size */
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screensize (&XSize, &YSize);
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/* Install joystick driver */
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joy_install (joy_static_stddrv);
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while (1) {
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/* Draw a border around the screen */
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/* Top line */
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cputc (CH_ULCORNER);
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chline (XSize - 2);
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cputc (CH_URCORNER);
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/* Vertical line, left side */
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cvlinexy (0, 1, YSize - 2);
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/* Bottom line */
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cputc (CH_LLCORNER);
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chline (XSize - 2);
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cputc (CH_LRCORNER);
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/* Vertical line, right side */
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cvlinexy (XSize - 1, 1, YSize - 2);
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/* Write the greeting in the mid of the screen */
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gotoxy ((XSize - strlen (Text)) / 2, YSize / 2);
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cprintf ("%s", Text);
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PosY = wherey ();
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textcolor (colors[i]); /* switch to color #0 */
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cputsxy(3, ++PosY, "COLOR 0");
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textcolor ((colors[i] + 1) & 3); /* switch to color #1 */
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cputsxy(3, ++PosY, "COLOR 1");
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textcolor ((colors[i] + 2) & 3); /* switch to color #2 */
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cputsxy(3, ++PosY, "COLOR 2");
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textcolor ((colors[i] + 3) & 3); /* switch to color #3 */ /* color #3 is the background color. So written text isn't visible. */
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cputsxy(3, ++PosY, "COLOR 3");
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/* Wait for the user to press and release a button */
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while (!joy_read (JOY_1))
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;
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while (joy_read (JOY_1))
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;
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i = (i + 1) & 3;
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/* Change colors */
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textcolor (colors[i]);
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bgcolor ((colors[i] + 3) & 3);
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/* Clear the screen again */
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clrscr ();
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}
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/* not reached */
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joy_uninstall ();
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/* Done */
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return EXIT_SUCCESS;
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}
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