private void Randomize(object sender, RoutedEventArgs e)
{
if (file == null)
{
ShowNotification("Error!", "Please select a ROM before applying.");
return;
}
//////////////////////////////////////////////////////
/// SETUP RANDOMIZER AND SEED
//////////////////////////////////////////////////////
string seedtext = (seed_input.Text != "") ? seed_input.Text : Utils.RandomString(12);
MD5 md5Hasher = MD5.Create();
byte[] hashed = md5Hasher.ComputeHash(Encoding.UTF8.GetBytes(seedtext));
int ivalue = BitConverter.ToInt32(hashed, 0);
Random rng = new Random(ivalue);
randomizer = new Randomizer(allBattles, allEncounters, allParts, rng);
if (chk_enable_randomizer.IsOn)
{
//////////////////////////////////////////////////////
/// RANDOMIZE CHARACTERS
//////////////////////////////////////////////////////
if (chk_randomize_characters.IsOn)
{
randomizer.RandomizeCharacters(chk_character_continuity.IsOn);
}
//////////////////////////////////////////////////////
/// RANDOMIZE BATTLES
//////////////////////////////////////////////////////
if (chk_randomize_battles.IsOn)
{
float mixedchance = chk_allow_mixed_bots.IsOn ? (float)(sl_mixed_bots.Value / 100) : 0;
bool keep_team_structure = chk_keep_battle_structure.IsOn;
bool balanced_medal_level = chk_balanced_bot_levels.IsOn;
bool keep_battle_continuity = chk_battle_continuity.IsOn;
randomizer.RandomizeBattles(keep_team_structure, balanced_medal_level, mixedchance, keep_battle_continuity);
}
randomizer.fixSoftlock();
int amount_of_battles = 0xf5;
int battle_size = 0x28;
for (int i = 0; i <= amount_of_battles; i++)
{
int battle_address = Utils.GetAdressAtPosition(file, memory_offsets[game_id]["Battles"] + 4 * i);
byte[] battle = StructUtils.getBytes(allBattles[i].content);
Array.Copy(battle, 0, file, battle_address, battle_size);
}
//////////////////////////////////////////////////////
/// RANDOM SHOPS
//////////////////////////////////////////////////////
if (chk_random_shops.IsOn)
{
for (int i = 0; i <= 0x3B; i++)
{
if (file[memory_offsets[game_id]["ShopContents"] + i] != 0xff)
{
file[memory_offsets[game_id]["ShopContents"] + i] = (byte)rng.Next(0, 0x78);
}
}
}
//////////////////////////////////////////////////////
/// RANDOM STARTER
//////////////////////////////////////////////////////
byte[] blacklist = new byte[] { 1, 3, 6, 7, 8,
14, 15, 17, 18,
19, 20, 22, 23,
25, 26, 27, 28,
39, 40, 45, 50,
57, 66, 72, 75,
77, 80, 81, 82,
84, 90, 91, 92,
96, 100, 101, 104,
110, 115, 117, 118 };
if (chk_randomize_starter.IsOn)
{
byte part;
if ((string)cmb_starter.SelectedItem == "Random")
{
part = (byte)rng.Next(0, 0x78);
while (blacklist.Contains(part))
{
part = (byte)rng.Next(0, 0x78);
}
}
else
{
part = (byte)(cmb_starter.SelectedIndex - 1);
}
byte medal = IdTranslator.botMedal(part);
randomizer.starterMedal = medal;
int offset = memory_offsets[game_id]["Starter"];
uint funcOffset = 0x044b58;
for (int i = 0; i < 4; i++)
{
file[offset + 4 * i] = part;
}
if (IdTranslator.isFemale(part))
{
file[offset + 16] = 1;
}
file[memory_offsets[game_id]["StartMedal"]] = medal;
ushort[] replacedFunction = new ushort[]
{
//Equip_parts
0x4a0e, //ldr r2,[PTR_DAT_]
0x7811, //ldrb r1,[r2,#0x0 ]=>DAT_03000be0
0x20c0, //mov r0,#0xc0
(ushort)(0x2300 + medal), //mov r3,#medal
0x4308, //orr r0, r1
0x7010, //strb r0,[r2,#0x0 ]=>DAT_03000be0
0x490c, //ldr r1,[PTR_DAT_]
0x2003, //mov r0,#0x3
0x7008, //strb r0,[r1,#0x0 ]=>DAT_030017a0
0x708b, //strb r3,[r1,#0x2 ]=>DAT_030017a2
(ushort)(0x2000 + part), //mov r0,#part
0x70c8, //strb r0,[r1,#0x3 ]=>DAT_030017a3
0x7108, //strb r0,[r1,#0x4 ]=>DAT_030017a4
0x7148, //strb r0,[r1,#0x5 ]=>DAT_030017a5
0x7188, //strb r0,[r1,#0x6 ]=>DAT_030017a6
0x4909, //ldr r1,[->parts_in_inventory]
0x1c08, //add r0, r1,#0x0
(ushort)(0x3000 + part * 2 + 1), //add r0,#part_offset
0x2201, //mov r2,#0x1
0x7002, //strb r2,[r0,#0x0 ]=>DAT_03004c95
0x4b07, //ldr r3,[DAT_]
0x18c8, //add r0, r1, r3
0x7002, //strb r2,[r0,#0x0 ]=>DAT_03004d85
0x33f0, //add r3,#0xf0
0x18c8, //add r0, r1, r3
0x7002, //strb r2,[r0,#0x0 ]=>DAT_03004e75
0x4805, //ldr r0,[DAT_]
0x1809, //add r1, r1, r0
0x700a, //strb r2,[r1,#0x0 ]=>DAT_03004f65
0x4770, //bx lr
// Data and pointers
0x0be0,
0x0300,
0x17a0,
0x0300,
0x4c40,
0x0300,
(ushort)(part * 2 + 1 + 0xf0),
0x0000,
(ushort)(part * 2 + 1 + 3 * 0xf0),
0x0000
};
Utils.WritePayload(file, funcOffset, replacedFunction);
}
//////////////////////////////////////////////////////
/// RANDOM MEDALS
//////////////////////////////////////////////////////
if (chk_random_medal.IsOn)
{
for (int i = memory_offsets[game_id]["Events"]; i < memory_offsets[game_id]["Events"] + 0x18000;)
{
byte op = file[i];
if (op == 0x3C)
{
Trace.WriteLine("Get Medal: " + IdTranslator.IdToMedal(file[i + 1]));
if (i + 1 == memory_offsets[game_id]["StartMedal"])
{
Trace.WriteLine("Is random starter, skipping...");
}
else
{
var randomMedal = randomizer.GetRandomMedal(file[i + 1]);
file[i + 1] = randomMedal;
Trace.WriteLine("Set Medal to: " + IdTranslator.IdToMedal(file[i + 1]));
}
}
if (op == 0x2F)
{
//multiconditional jump
i += file[i + 1] + 1;
}
else
{
i += IdTranslator.operationBytes[op];
}
}
//////////////////////////////////////////////////////
/// FIX MESSAGES
//////////////////////////////////////////////////////
List <byte> origMedals = new List <byte> {
15, 16, 17, 18, 19, 20
};
List <byte> replacedMedals = origMedals.Select(x => randomizer.medalExchanges[x]).ToList();
List <Medal> medals = loadFile <List <Medal> >("./Medals.json");
List <((int, int), (int, int))> messages = new List <((int, int), (int, int))>();
messages.Add(((0x00, 0x6b), (0x00, 0x68)));
messages.Add(((0x00, 0x6f), (0x00, 0x6c)));
messages.Add(((0x00, 0x73), (0x00, 0x70)));
messages.Add(((0x00, 0x77), (0x00, 0x74)));
messages.Add(((0x00, 0x7b), (0x00, 0x78)));
messages.Add(((0x00, 0x7f), (0x00, 0x7c)));
TextParser textParser = new TextParser(file, memory_offsets[game_id]["Text"]);
for (int i = 0; i < replacedMedals.Count; i++)
{
textParser.addMessage(messages[i].Item1, medals[replacedMedals[i]].ikki_text);
textParser.addMessage(messages[i].Item2, medals[replacedMedals[i]].collect_text);
}
}
}
//////////////////////////////////////////////////////
/// CODE PATCHES
//////////////////////////////////////////////////////
if (chk_code_patches.IsOn)
{
uint jumpOffset = 0x104;
uint hookOffset = 0x7f4500;
uint trainerOffset = hookOffset + 0xD0;
uint instr1 = (uint)Utils.GetIntAtPosition(file, (int)jumpOffset);
uint instr2 = (uint)Utils.GetIntAtPosition(file, (int)jumpOffset + 4);
uint instr3 = (uint)Utils.GetIntAtPosition(file, (int)jumpOffset + 8);
uint[] jumpPayload = new uint[]
{
0xE92D8000, // push r15
0xE51FF004, // ldr r15, traineraddr
0x08000000 + hookOffset // hookOffset
};
uint[] hookPayload = new uint[]
{
0xE92D4000, // push r14
0xE3A0E402, // mov r14, #0x2000000
0xE28EE701, // add r14, #40000
0xE24EE004, // sub r14, #28
0xE90E08FF, // stmdb [r14], r0-r7, r11
0xEB00002D, // bl trainerfunc
0xE3A0E402, // mov r14, #0x2000000
0xE28EE701, // add r14, #40000
0xE24EE028, // sub r14, #28
0xE89E08FF, // ldmia [r14], r0-r7, r11
0xE8BD4000, // pop r14
instr1, // --- original instruction #1 ---
instr2, // --- original instruction #2 ---
instr3, // --- original instruction #3 ---
0xE8BD8000 // pop r15
};
List <uint> trainerPayloadList = new List <uint>();
Dictionary <uint, ushort> codePatches = new Dictionary <uint, ushort>();
if (chk_instant_text.IsOn)
{
trainerPayloadList.AddRange(new uint[] {
// Set text_speed to instant
0xE3A01403, // mov r1, #0x3000000
0xE3A000FF, // mov r0, #0xFF
0xE5C1045A, // strb r0, [r1, #0x45A]
});
codePatches = codePatches.Union(new Dictionary <uint, ushort>
{
// Instant Character Popup
{ 0x3F5F6, 0x3008 },
{ 0x3F600, 0xDC08 }
}).ToDictionary(k => k.Key, v => v.Value);
}
if (chk_encounters.IsOn)
{
trainerPayloadList.AddRange(new uint[] {
// Allow encounters
0xE3A01403, // mov r1, #0x3000000
0xE2811B19, // add r1, #0x6400
0xE3A00000, // mov r0, #0x0
0xE5C1000C, // strb r0, [r1, #0xc]
});
}
trainerPayloadList.Add(
// Return
0xE12FFF1E // bx r15
);
uint[] trainerPayload = trainerPayloadList.ToArray();
Utils.WritePayload(file, jumpOffset, jumpPayload);
Utils.WritePayload(file, hookOffset, hookPayload);
Utils.WritePayload(file, trainerOffset, trainerPayload);
Utils.WritePatches(file, codePatches);
}
//////////////////////////////////////////////////////
/// ADD MESSAGES
//////////////////////////////////////////////////////
TextParser textParser2 = new TextParser(file, memory_offsets[game_id]["Text"]);
List <Message> patchedMessages = loadFile <List <Message> >("./Patched_Messages.json");
foreach (Message message in patchedMessages)
{
textParser2.addMessage((message.id[0], message.id[1]), message.message);
}
TextPatcher textPatcher = new TextPatcher(ref file, memory_offsets[game_id]["Text"], 0x7f5500, textParser2.getEncodedMessages());
textPatcher.PatchText();
//////////////////////////////////////////////////////
/// WRITE TO FILE
//////////////////////////////////////////////////////
File.WriteAllBytes(seedtext + ".gba", file);
ShowNotification("Done!", "The ROM has been converted and is saved with seed: \"" + seedtext + "\" as \"" + seedtext + ".gba\"");
}