+/* values for DrawLevelText() modes */
+#define TEXT_INIT 0
+#define TEXT_SETCURSOR 1
+#define TEXT_WRITECHAR 2
+#define TEXT_BACKSPACE 3
+#define TEXT_NEWLINE 4
+#define TEXT_END 5
+
+static void DrawLevelText(int sx, int sy, char letter, int mode)
+{
+ static short delete_buffer[MAX_LEV_FIELDX];
+ static int start_sx, start_sy;
+ static int last_sx, last_sy;
+ static boolean typing = FALSE;
+ int letter_element = EL_CHAR_ASCII0 + letter;
+ int lx, ly;
+
+ if (mode != TEXT_INIT)
+ {
+ if (!typing)
+ return;
+
+ if (mode != TEXT_SETCURSOR)
+ {
+ sx = last_sx;
+ sy = last_sy;
+ }
+
+ lx = last_sx + level_xpos;
+ ly = last_sy + level_ypos;
+ }
+
+ switch (mode)
+ {
+ case TEXT_INIT:
+ if (typing)
+ DrawLevelText(0, 0, 0, TEXT_END);
+
+ typing = TRUE;
+ start_sx = last_sx = sx;
+ start_sy = last_sy = sy;
+ DrawLevelText(sx, sy, 0, TEXT_SETCURSOR);
+ break;
+
+ case TEXT_SETCURSOR:
+ DrawMiniElement(last_sx, last_sy, Feld[lx][ly]);
+ DrawAreaBorder(sx, sy, sx, sy);
+ last_sx = sx;
+ last_sy = sy;
+ break;
+
+ case TEXT_WRITECHAR:
+ if (letter_element >= EL_CHAR_START && letter_element <= EL_CHAR_END)
+ {
+ delete_buffer[sx - start_sx] = Feld[lx][ly];
+ Feld[lx][ly] = letter_element;
+
+ if (sx + 1 < 2*SCR_FIELDX && lx + 1 < lev_fieldx)
+ DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
+ else if (sy + 1 < 2*SCR_FIELDY && ly + 1 < lev_fieldy)
+ DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
+ else
+ DrawLevelText(0, 0, 0, TEXT_END);
+ }
+ break;
+
+ case TEXT_BACKSPACE:
+ if (sx > start_sx)
+ {
+ Feld[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
+ DrawMiniElement(sx - 1, sy, new_element3);
+ DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
+ }
+ break;
+
+ case TEXT_NEWLINE:
+ if (sy + 1 < 2*SCR_FIELDY - 1 && ly + 1 < lev_fieldy - 1)
+ DrawLevelText(start_sx, sy + 1, 0, TEXT_SETCURSOR);
+ else
+ DrawLevelText(0, 0, 0, TEXT_END);
+ break;
+
+ case TEXT_END:
+ CopyLevelToUndoBuffer();
+ DrawMiniElement(sx, sy, Feld[lx][ly]);
+ typing = FALSE;
+ break;
+
+ default:
+ break;
+ }
+}
+