1 files changed, 153 insertions, 0 deletions
diff --git a/src/field_message_box.c b/src/field_message_box.c
new file mode 100644
index 000000000..34670f956
--- /dev/null
+++ b/src/field_message_box.c
@@ -0,0 +1,153 @@
+#include "global.h"
+#include "text.h"
+#include "text_window.h"
+#include "task.h"
+#include "string_util.h"
+
+extern struct Window unk_202E87C;
+extern u16 word_202E9D2;
+
+extern u16 gMenuTextTileOffset;
+
+extern u8 byte_30005A8;
+
+void textbox_fdecode_auto_and_task_add(u8 *);
+void textbox_auto_and_task_add(void);
+
+void sub_8064A74(void)
+{
+    byte_30005A8 = 0;
+    SetMessageBoxBaseTileNum(word_202E9D2);
+    InitWindowFromConfig(&unk_202E87C, (struct WindowConfig *)&gWindowConfig_81E6CE4);
+}
+
+void sub_8064AA0(u8 taskId)
+{
+    struct Task *task = &gTasks[taskId];
+    switch (task->data[0])
+    {
+    case 0:
+        LoadMessageBoxTiles(&unk_202E87C);
+        task->data[0]++;
+        break;
+    case 1:
+        DrawStandardMessageBox(&unk_202E87C);
+        task->data[0]++;
+        break;
+    case 2:
+        switch (byte_30005A8)
+        {
+        case 2:
+            if (!sub_80035AC(&unk_202E87C))
+                return;
+            break;
+        case 3:
+            if (!sub_8003778(&unk_202E87C))
+                return;
+            break;
+        }
+        byte_30005A8 = 0;
+        DestroyTask(taskId);
+    }
+}
+
+void task_add_textbox(void)
+{
+    CreateTask(sub_8064AA0, 80);
+}
+
+void task_del_textbox()
+{
+    u8 taskId = FindTaskIdByFunc(sub_8064AA0);
+    if (taskId != 0xFF)
+        DestroyTask(taskId);
+}
+
+bool8 box_related_two__2(u8 *a1)
+{
+    if (byte_30005A8)
+    {
+        return FALSE;
+    }
+    else
+    {
+        textbox_fdecode_auto_and_task_add(a1);
+        byte_30005A8 = 2;
+        return TRUE;
+    }
+}
+
+bool8 box_related_two__3(u8 *a1)
+{
+    if (byte_30005A8)
+    {
+        return FALSE;
+    }
+    else
+    {
+        byte_30005A8 = 3;
+        textbox_fdecode_auto_and_task_add(a1);
+        return TRUE;
+    }
+}
+
+bool8 unref_sub_8064BB8(u8 *a1)
+{
+    byte_30005A8 = 3;
+    textbox_fdecode_auto_and_task_add(a1);
+    return TRUE;
+}
+
+bool8 unref_sub_8064BD0(u8 *a1)
+{
+    if (byte_30005A8)
+    {
+        return FALSE;
+    }
+    else
+    {
+        byte_30005A8 = 2;
+        textbox_auto_and_task_add();
+        return TRUE;
+    }
+}
+
+void textbox_fdecode_auto_and_task_add(u8 *a1)
+{
+    StringExpandPlaceholders(gStringVar4, a1);
+    sub_8002EB0(&unk_202E87C, gStringVar4, gMenuTextTileOffset, 2, 15);
+    task_add_textbox();
+}
+
+void textbox_auto_and_task_add(void)
+{
+    sub_8002EB0(&unk_202E87C, gStringVar4, gMenuTextTileOffset, 2, 15);
+    task_add_textbox();
+}
+
+void textbox_close()
+{
+    task_del_textbox();
+    sub_806536C(&unk_202E87C);
+    byte_30005A8 = 0;
+}
+
+u8 textbox_any_visible()
+{
+    return byte_30005A8;
+}
+
+bool8 sub_8064C84()
+{
+    if (byte_30005A8 == 0)
+        return TRUE;
+    else
+        return FALSE;
+}
+
+void unref_sub_8064CA0()
+{
+    task_del_textbox();
+    DrawStandardMessageBox(&unk_202E87C);
+    byte_30005A8 = 0;
+}