Document `func_80148CBC` (#1836)

* Document `func_80148CBC`

* Add doc comment

2 files changed, 22 insertions, 19 deletions

diff --git a/src/code/z_message.c b/src/code/z_message.c
index 375491e82..dbeba7d3f 100644
--- a/src/code/z_message.c
+++ b/src/code/z_message.c
@@ -524,14 +524,17 @@ void Message_HandleChoiceSelection(PlayState* play, u8 numChoices) {
     }
 }
 
-void func_80148CBC(PlayState* play, Gfx** gfxP, u8 arg2) {
+/**
+ * Draws the arrow icon next to the currently selected choice.
+ */
+void Message_DrawChoiceIcon(PlayState* play, Gfx** gfxP, u8 numChoices) {
     MessageContext* msgCtx = &play->msgCtx;
 
     msgCtx->textPosX = 48;
-    if (arg2 == 1) {
-        msgCtx->textPosY = msgCtx->unk11FFE[1 + msgCtx->choiceIndex];
+    if (numChoices == 1) {
+        msgCtx->textPosY = msgCtx->choicePosY[1 + msgCtx->choiceIndex];
     } else {
-        msgCtx->textPosY = msgCtx->unk11FFE[msgCtx->choiceIndex];
+        msgCtx->textPosY = msgCtx->choicePosY[msgCtx->choiceIndex];
     }
     Message_DrawTextboxIcon(play, gfxP, msgCtx->textPosX, msgCtx->textPosY);
 }
@@ -5051,15 +5054,15 @@ void Message_DrawMain(PlayState* play, Gfx** gfxP) {
 
                 switch (msgCtx->textboxEndType) {
                     case TEXTBOX_ENDTYPE_TWO_CHOICE:
-                        func_80148CBC(play, &gfx, 1);
+                        Message_DrawChoiceIcon(play, &gfx, 1);
                         break;
 
                     case TEXTBOX_ENDTYPE_THREE_CHOICE:
-                        func_80148CBC(play, &gfx, 2);
+                        Message_DrawChoiceIcon(play, &gfx, 2);
                         break;
 
                     case TEXTBOX_ENDTYPE_12:
-                        func_80148CBC(play, &gfx, 1);
+                        Message_DrawChoiceIcon(play, &gfx, 1);
                         break;
 
                     case TEXTBOX_ENDTYPE_PERSISTENT:
@@ -5377,13 +5380,13 @@ void Message_Update(PlayState* play) {
                 msgCtx->textboxXTarget = sTextboxXPositions[var_v1];
 
                 if ((gSaveContext.options.language == LANGUAGE_JPN) && !msgCtx->textIsCredits) {
-                    msgCtx->unk11FFE[0] = (s16)(msgCtx->textboxYTarget + 7);
-                    msgCtx->unk11FFE[1] = (s16)(msgCtx->textboxYTarget + 25);
-                    msgCtx->unk11FFE[2] = (s16)(msgCtx->textboxYTarget + 43);
+                    msgCtx->choicePosY[0] = (s16)(msgCtx->textboxYTarget + 7);
+                    msgCtx->choicePosY[1] = (s16)(msgCtx->textboxYTarget + 25);
+                    msgCtx->choicePosY[2] = (s16)(msgCtx->textboxYTarget + 43);
                 } else {
-                    msgCtx->unk11FFE[0] = (s16)(msgCtx->textboxYTarget + 20);
-                    msgCtx->unk11FFE[1] = (s16)(msgCtx->textboxYTarget + 32);
-                    msgCtx->unk11FFE[2] = (s16)(msgCtx->textboxYTarget + 44);
+                    msgCtx->choicePosY[0] = (s16)(msgCtx->textboxYTarget + 20);
+                    msgCtx->choicePosY[1] = (s16)(msgCtx->textboxYTarget + 32);
+                    msgCtx->choicePosY[2] = (s16)(msgCtx->textboxYTarget + 44);
                 }
 
                 if ((msgCtx->textBoxType == TEXTBOX_TYPE_4) || (msgCtx->textBoxType == TEXTBOX_TYPE_5)) {
diff --git a/src/code/z_message_nes.c b/src/code/z_message_nes.c
index eeea22495..9e475c51e 100644
--- a/src/code/z_message_nes.c
+++ b/src/code/z_message_nes.c
@@ -747,9 +747,9 @@ void Message_DrawTextNES(PlayState* play, Gfx** gfxP, u16 textDrawPos) {
                     msgCtx->stateTimer = 4;
                     Font_LoadMessageBoxEndIcon(font, 2);
                     if (msgCtx->unk120D8 != 3) {
-                        msgCtx->unk11FFE[0] = (s16)(msgCtx->textboxYTarget + 14);
-                        msgCtx->unk11FFE[1] = (s16)(msgCtx->textboxYTarget + 26);
-                        msgCtx->unk11FFE[2] = (s16)(msgCtx->textboxYTarget + 38);
+                        msgCtx->choicePosY[0] = (s16)(msgCtx->textboxYTarget + 14);
+                        msgCtx->choicePosY[1] = (s16)(msgCtx->textboxYTarget + 26);
+                        msgCtx->choicePosY[2] = (s16)(msgCtx->textboxYTarget + 38);
                     }
                 }
                 break;
@@ -762,9 +762,9 @@ void Message_DrawTextNES(PlayState* play, Gfx** gfxP, u16 textDrawPos) {
                     msgCtx->stateTimer = 4;
                     Font_LoadMessageBoxEndIcon(font, 2);
                     if (msgCtx->unk120D8 != 3) {
-                        msgCtx->unk11FFE[0] = (s16)(msgCtx->textboxYTarget + 14);
-                        msgCtx->unk11FFE[1] = (s16)(msgCtx->textboxYTarget + 26);
-                        msgCtx->unk11FFE[2] = (s16)(msgCtx->textboxYTarget + 38);
+                        msgCtx->choicePosY[0] = (s16)(msgCtx->textboxYTarget + 14);
+                        msgCtx->choicePosY[1] = (s16)(msgCtx->textboxYTarget + 26);
+                        msgCtx->choicePosY[2] = (s16)(msgCtx->textboxYTarget + 38);
                     }
                 }
                 break;