private static void RunOnBuildDropTable(On.RoR2.Run.orig_BuildDropTable orig, Run self)
{
orig(self);
if (DefaultDrops)
{
// Setup default item lists
DefaultItemDrops.AddDefaults();
}
// These lists should be replaced soon.
self.availableTier1DropList.Clear();
self.availableTier1DropList.AddRange(GetDefaultDropList(ItemTier.Tier1).Select(x => PickupCatalog.FindPickupIndex(x))
.ToList());
self.availableTier2DropList.Clear();
self.availableTier2DropList.AddRange(GetDefaultDropList(ItemTier.Tier2).Select(x => PickupCatalog.FindPickupIndex(x))
.ToList());
self.availableTier3DropList.Clear();
self.availableTier3DropList.AddRange(GetDefaultDropList(ItemTier.Tier3).Select(x => PickupCatalog.FindPickupIndex(x))
.ToList());
self.availableEquipmentDropList.Clear();
self.availableEquipmentDropList.AddRange(GetDefaultEquipmentDropList().Select(x => PickupCatalog.FindPickupIndex(x))
.ToList());
self.availableLunarDropList.Clear();
self.availableLunarDropList.AddRange(GetDefaultLunarDropList());
self.smallChestDropTierSelector.Clear();
self.smallChestDropTierSelector.AddChoice(self.availableTier1DropList, DefaultSmallChestTier1SelectorDropChance);
self.smallChestDropTierSelector.AddChoice(self.availableTier2DropList, DefaultSmallChestTier2SelectorDropChance);
self.smallChestDropTierSelector.AddChoice(self.availableTier3DropList, DefaultSmallChestTier3SelectorDropChance);
self.mediumChestDropTierSelector.Clear();
self.mediumChestDropTierSelector.AddChoice(self.availableTier2DropList, DefaultMediumChestTier1SelectorDropChance);
self.mediumChestDropTierSelector.AddChoice(self.availableTier3DropList, DefaultMediumChestTier2SelectorDropChance);
self.largeChestDropTierSelector.Clear();
}
public static void InitHooks()
{
var itemDropApi_GetSelection = typeof(ItemDropAPI).GetMethodCached("GetSelection");
var xoroshiro_GetNextNormalizedFloat = typeof(Xoroshiro128Plus).GetMethodCached("get_nextNormalizedFloat");
IL.RoR2.BossGroup.OnCharacterDeathCallback += il => {
var cursor = new ILCursor(il).Goto(0);
cursor.GotoNext(x => x.MatchCall(typeof(PickupIndex).GetMethodCached("get_itemIndex")));
var itemIndex = (VariableDefinition)cursor.Next.Next.Operand;
cursor.Goto(0);
cursor.GotoNext(x => x.MatchCallvirt(typeof(List <PickupIndex>).GetMethodCached("get_Item")));
var pickupIndex = (VariableDefinition)cursor.Next.Next.Operand;
cursor.GotoNext(MoveType.Before, x => x.MatchStloc(itemIndex.Index));
cursor.Emit(OpCodes.Stloc_S, itemIndex);
cursor.Emit(OpCodes.Ldc_I4_0);
cursor.Emit(OpCodes.Ldarg_0);
cursor.Emit(OpCodes.Ldfld, typeof(BossGroup).GetFieldCached("rng"));
cursor.Emit(OpCodes.Callvirt, xoroshiro_GetNextNormalizedFloat);
cursor.Emit(OpCodes.Call, itemDropApi_GetSelection);
cursor.Emit(OpCodes.Stloc_S, pickupIndex);
cursor.Emit(OpCodes.Ldloca_S, pickupIndex);
cursor.Emit(OpCodes.Call, typeof(PickupIndex).GetMethodCached("get_itemIndex"));
};
var dropPickup =
typeof(ChestBehavior).GetFieldCached("dropPickup");
var lunarChance =
typeof(ChestBehavior).GetFieldCached("lunarChance");
var tier1Chance =
typeof(ChestBehavior).GetFieldCached("tier1Chance");
var tier2Chance =
typeof(ChestBehavior).GetFieldCached("tier2Chance");
var tier3Chance =
typeof(ChestBehavior).GetFieldCached("tier3Chance");
IL.RoR2.ChestBehavior.RollItem += il => {
var cursor = new ILCursor(il).Goto(0);
cursor.GotoNext(x => x.MatchLdcI4(8));
cursor.Emit(OpCodes.Ldarg_0);
cursor.EmitDelegate <Action <ChestBehavior> >(@this => {
if ((PickupIndex)dropPickup.GetValue(@this) != PickupIndex.none)
{
return;
}
if ((float)lunarChance.GetValue(@this) >= 1f)
{
@this.dropPickup = GetSelection(ItemDropLocation.LunarChest,
Run.instance.treasureRng.nextNormalizedFloat);
}
else if ((float)tier3Chance.GetValue(@this) >= 0.2f)
{
@this.dropPickup = GetSelection(ItemDropLocation.LargeChest,
Run.instance.treasureRng.nextNormalizedFloat);
}
else if ((float)tier2Chance.GetValue(@this) >= 0.8f)
{
@this.dropPickup = GetSelection(ItemDropLocation.MediumChest,
Run.instance.treasureRng.nextNormalizedFloat);
}
else if ((float)tier1Chance.GetValue(@this) <= 0.8f)
{
@this.dropPickup = GetSelection(ItemDropLocation.SmallChest,
Run.instance.treasureRng.nextNormalizedFloat);
}
});
cursor.Emit(OpCodes.Ret);
};
var weightedSelection_Evaluate = typeof(WeightedSelection <PickupIndex>).GetMethodCached("Evaluate");
IL.RoR2.ShrineChanceBehavior.AddShrineStack += il => {
var cursor = new ILCursor(il).Goto(0);
cursor.GotoNext(x => x.MatchCallvirt(weightedSelection_Evaluate));
cursor.Next.OpCode = OpCodes.Nop;
cursor.Next.Operand = null;
cursor.EmitDelegate <Func <WeightedSelection <PickupIndex>, float, PickupIndex> >((_, x) =>
GetSelection(ItemDropLocation.Shrine, x));
};
On.RoR2.Run.BuildDropTable += (orig, self) => {
if (DefaultDrops)
{
// Setup default item lists
DefaultItemDrops.AddDefaults();
}
self.availableTier1DropList.Clear();
self.availableTier1DropList.AddRange(GetDefaultDropList(ItemTier.Tier1).Select(x => new PickupIndex(x))
.ToList());
self.availableTier2DropList.Clear();
self.availableTier2DropList.AddRange(GetDefaultDropList(ItemTier.Tier2).Select(x => new PickupIndex(x))
.ToList());
self.availableTier3DropList.Clear();
self.availableTier3DropList.AddRange(GetDefaultDropList(ItemTier.Tier3).Select(x => new PickupIndex(x))
.ToList());
self.availableEquipmentDropList.Clear();
self.availableEquipmentDropList.AddRange(GetDefaultEquipmentDropList().Select(x => new PickupIndex(x))
.ToList());
self.availableLunarDropList.Clear();
self.availableLunarDropList.AddRange(GetDefaultLunarDropList());
self.smallChestDropTierSelector.Clear();
self.smallChestDropTierSelector.AddChoice(self.availableTier1DropList, 0.8f);
self.smallChestDropTierSelector.AddChoice(self.availableTier2DropList, 0.2f);
self.smallChestDropTierSelector.AddChoice(self.availableTier3DropList, 0.01f);
self.mediumChestDropTierSelector.Clear();
self.mediumChestDropTierSelector.AddChoice(self.availableTier2DropList, 0.8f);
self.mediumChestDropTierSelector.AddChoice(self.availableTier3DropList, 0.2f);
self.largeChestDropTierSelector.Clear();
};
}
internal static void InitHooks()
{
var itemDropApi_GetSelection = typeof(ItemDropAPI).GetMethodCached("GetSelection");
var xoroshiro_GetNextNormalizedFloat = typeof(Xoroshiro128Plus).GetMethodCached("get_nextNormalizedFloat");
Logger.LogDebug($"{nameof(ItemDropAPI)} - Hook 1");
IL.RoR2.BossGroup.OnCharacterDeathCallback += il => {
var cursor = new ILCursor(il).Goto(0);
cursor.GotoNext(x => x.MatchCall(typeof(PickupIndex).GetMethodCached("get_itemIndex")));
var itemIndex = (VariableDefinition)cursor.Next.Next.Operand;
cursor.Goto(0);
cursor.GotoNext(x => x.MatchCall(typeof(PickupIndex).GetConstructorCached(new[] { typeof(ItemIndex) })));
cursor.GotoPrev(x => x.OpCode == OpCodes.Ldloca_S);
var pickupIndex = (VariableDefinition)cursor.Next.Operand;
cursor.Goto(0);
cursor.GotoNext(x => x.MatchStloc(itemIndex.Index));
cursor.Emit(OpCodes.Stloc_S, itemIndex);
cursor.Emit(OpCodes.Ldc_I4_0);
cursor.Emit(OpCodes.Ldarg_0);
cursor.Emit(OpCodes.Ldfld, typeof(BossGroup).GetFieldCached("rng"));
cursor.Emit(OpCodes.Callvirt, xoroshiro_GetNextNormalizedFloat);
cursor.Emit(OpCodes.Call, itemDropApi_GetSelection);
cursor.Emit(OpCodes.Stloc_S, pickupIndex);
cursor.Emit(OpCodes.Ldloca_S, pickupIndex);
cursor.Emit(OpCodes.Call, typeof(PickupIndex).GetMethodCached("get_itemIndex"));
};
On.RoR2.ChestBehavior.RollItem += (orig, self) => {
if (!NetworkServer.active)
{
Debug.LogWarning("[Server] function 'System.Void RoR2.ChestBehavior::RollItem()' called on client");
return;
}
if (self.GetFieldValue <PickupIndex>("dropPickup") != PickupIndex.none)
{
return;
}
if (self.GetFieldValue <float>("lunarChance") >= 1f)
{
self.SetFieldValue("dropPickup", GetSelection(ItemDropLocation.LunarChest,
Run.instance.treasureRng.nextNormalizedFloat));
}
else if (self.GetFieldValue <float>("tier3Chance") >= 0.2f)
{
self.SetFieldValue("dropPickup", GetSelection(ItemDropLocation.LargeChest,
Run.instance.treasureRng.nextNormalizedFloat));
}
else if (self.GetFieldValue <float>("tier2Chance") >= 0.8f)
{
self.SetFieldValue("dropPickup", GetSelection(ItemDropLocation.MediumChest,
Run.instance.treasureRng.nextNormalizedFloat));
}
else if (self.GetFieldValue <float>("tier1Chance") <= 0.8f)
{
self.SetFieldValue("dropPickup", GetSelection(ItemDropLocation.SmallChest,
Run.instance.treasureRng.nextNormalizedFloat));
}
};
var weightedSelection_Evaluate = typeof(WeightedSelection <PickupIndex>).GetMethodCached("Evaluate");
Logger.LogDebug($"{nameof(ItemDropAPI)} - Hook 3");
IL.RoR2.ShrineChanceBehavior.AddShrineStack += il => {
var cursor = new ILCursor(il).Goto(0);
cursor.GotoNext(x => x.MatchCallvirt(weightedSelection_Evaluate));
cursor.Next.OpCode = OpCodes.Nop;
cursor.Next.Operand = null;
cursor.EmitDelegate <Func <WeightedSelection <PickupIndex>, float, PickupIndex> >((_, x) =>
GetSelection(ItemDropLocation.Shrine, x));
};
Logger.LogDebug($"{nameof(ItemDropAPI)} - Hook 4");
On.RoR2.Run.BuildDropTable += (orig, self) => {
if (DefaultDrops)
{
// Setup default item lists
DefaultItemDrops.AddDefaults();
}
// These lists should be replaced soon.
self.availableTier1DropList.Clear();
self.availableTier1DropList.AddRange(GetDefaultDropList(ItemTier.Tier1).Select(x => new PickupIndex(x))
.ToList());
self.availableTier2DropList.Clear();
self.availableTier2DropList.AddRange(GetDefaultDropList(ItemTier.Tier2).Select(x => new PickupIndex(x))
.ToList());
self.availableTier3DropList.Clear();
self.availableTier3DropList.AddRange(GetDefaultDropList(ItemTier.Tier3).Select(x => new PickupIndex(x))
.ToList());
self.availableEquipmentDropList.Clear();
self.availableEquipmentDropList.AddRange(GetDefaultEquipmentDropList().Select(x => new PickupIndex(x))
.ToList());
self.availableLunarDropList.Clear();
self.availableLunarDropList.AddRange(GetDefaultLunarDropList());
self.smallChestDropTierSelector.Clear();
self.smallChestDropTierSelector.AddChoice(self.availableTier1DropList, DefaultSmallChestTier1SelectorDropChance);
self.smallChestDropTierSelector.AddChoice(self.availableTier2DropList, DefaultSmallChestTier2SelectorDropChance);
self.smallChestDropTierSelector.AddChoice(self.availableTier3DropList, DefaultSmallChestTier3SelectorDropChance);
self.mediumChestDropTierSelector.Clear();
self.mediumChestDropTierSelector.AddChoice(self.availableTier2DropList, DefaultMediumChestTier1SelectorDropChance);
self.mediumChestDropTierSelector.AddChoice(self.availableTier3DropList, DefaultMediumChestTier2SelectorDropChance);
self.largeChestDropTierSelector.Clear();
};
}