Added diagonal movement, with a 1.4 penalty.

[plomrogue] / src / client / map.c

diff --git a/src/client/map.c b/src/client/map.c
new file mode 100644 (file)
index 0000000..a419039
--- /dev/null
+++ b/src/client/map.c
@@ -0,0 +1,47 @@
+/* src/client/map.c */
+
+#include "map.h"
+#include <stdint.h> /* uint16_t */
+#include "misc.h" /* center_offset() */
+#include "windows.h" /* struct Win, get_win_by_id() */
+#include "world.h" /* for global world */
+
+
+
+extern void map_scroll(char d)
+{
+    struct Win * win = get_win_by_id('m');
+    uint16_t offset;
+    if (('8' == d || '2' == d) && world.map.size.y > win->frame_size.y)
+    {
+        offset = center_offset(win->center.y,
+                               world.map.size.y, win->frame_size.y);
+        win->center.y = offset + (win->frame_size.y / 2);
+        if ('2' == d && win->center.y < world.map.size.y - 1)
+        {
+            win->center.y++;
+            return;
+        }
+        win->center.y = win->center.y - ('8' == d && win->center.y > 0);
+    }
+    else if (('4' == d || '6' == d) && world.map.size.x > win->frame_size.x)
+    {
+        offset = center_offset(win->center.x,
+                               world.map.size.x, win->frame_size.x);
+        win->center.x = offset + (win->frame_size.x / 2);
+        if ('6' == d && win->center.x < world.map.size.x - 1)
+        {
+            win->center.x++;
+            return;
+        }
+        win->center.x = win->center.x - ('4' == d && win->center.x > 0);
+    }
+}
+
+
+
+extern void map_center()
+{
+    struct Win * win_map = get_win_by_id('m');
+    win_map->center = world.player_pos;
+}