make Games 4 DOS easy

examples/mouse.c

@@ -0,0 +1,48 @@
+/**
+ * Example mouse work
+ *
+ * Alexander Popov <iiiypuk@fastmail.fm>
+ * License: Unlicense
+ */
+
+#include <stdio.h>
+#include <gdos/gdos.h>
+
+void main() {
+  int mouse_status;
+  int mouse_x, mouse_y, mouse_click;
+  int mouse_x_old = -1, mouse_y_old = -1, mouse_click_old = -1;
+
+  mouse_status = gd_detect_mouse();
+  if (mouse_status != GD_TRUE) {
+    printf("Mouse support not available.\n");
+    abort();
+  }
+
+  /* example: TEXT_MODE || VGA_256_COLOR_MODE */
+  gd_set_mode(VGA_256_COLOR_MODE);
+  clrscr();
+  gd_show_mouse();
+  do {
+    gd_get_mouse_status(&mouse_x, &mouse_y, &mouse_click);
+
+    /* when mouse status change update */
+    if (mouse_x != mouse_x_old ||
+      mouse_y != mouse_y_old ||
+      mouse_click != mouse_click_old)
+    {
+      mouse_x_old = mouse_x;
+      mouse_y_old = mouse_y;
+      mouse_click_old = mouse_click;
+
+      clrscr();
+      gotoxy(0, 0);
+      printf("Mouse position: X=%d, Y=%d, CLICK=%d", mouse_x, mouse_y, mouse_click);
+      gd_show_mouse();
+    }
+  } while (!kbhit());
+  gd_hide_mouse();
+  getch();
+
+  gd_set_mode(TEXT_MODE);
+}