From 91b1c26976ae50f1c4160b80522d5c6639a08f73 Mon Sep 17 00:00:00 2001
From: Jimmi Holst Christensen <jhc@dismail.de>
Date: Mon, 10 Jan 2022 16:53:57 +0100
Subject: [PATCH] Explore removing text messages from gen5 games

---
 src/core/gen5.zig | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/src/core/gen5.zig b/src/core/gen5.zig
index e8fa699..84f5ac0 100644
--- a/src/core/gen5.zig
+++ b/src/core/gen5.zig
@@ -15,6 +15,7 @@ const unicode = std.unicode;
 
 const nds = rom.nds;
 
+const li32 = rom.int.li32;
 const lu128 = rom.int.lu128;
 const lu16 = rom.int.lu16;
 const lu32 = rom.int.lu32;
@@ -1327,6 +1328,43 @@ pub const Game = struct {
                 };
                 while (decoder.next() catch continue) |command| : (command_offset = decoder.i) {
                     switch (command.toZigUnion()) {
+                        .wait_button,
+                        .message,
+                        .message2,
+                        .message3,
+                        .bubble_message,
+                        .close_bubble_message,
+                        .bordered_message,
+                        .close_bordered_message,
+                        .close_message_k_p,
+                        .close_message_k_p2,
+                        .event_grey_message,
+                        .closed_event_grey_message,
+                        .multi2,
+                        .close_multi,
+                        .set_text_script_message,
+                        .angry_message,
+                        .close_angry_message,
+                        .double_message,
+                        .show_message_at,
+                        .close_show_message_at,
+                        => {
+                            const bytes = mem.asBytes(command);
+                            const len = @import("script.zig").packedLength(command.*) catch
+                                unreachable;
+                            if (len % 2 == 0) {
+                                mem.set(u8, bytes[0..len], 0);
+                            } else if (len == 3) {
+                                unreachable;
+                            } else if (len == 5) {
+                                command.tag = .@"if";
+                                command.data().@"if".value = 0;
+                                command.data().@"if".offset = li32.init(0);
+                            } else {
+                                command.tag = .jump;
+                                command.data().jump.offset = li32.init(@intCast(i32, len) - 6);
+                            }
+                        },
                         .wild_battle => |battle| try static_pokemons.append(.{
                             .species = &battle.species,
                             .level = &battle.level,