feat: added Immovable mod

4 files changed, 234 insertions, 0 deletions

diff --git a/src/main/java/ftbsc/bscv/modules/self/Immovable.java b/src/main/java/ftbsc/bscv/modules/self/Immovable.java
new file mode 100644
index 0000000..b01a14e
--- /dev/null
+++ b/src/main/java/ftbsc/bscv/modules/self/Immovable.java
@@ -0,0 +1,85 @@
+package ftbsc.bscv.modules.self;
+
+import com.google.auto.service.AutoService;
+
+import ftbsc.bscv.api.ILoadable;
+import ftbsc.bscv.modules.AbstractModule;
+import ftbsc.bscv.patches.BlockPushPatch.PlayerBlockPushEvent;
+import ftbsc.bscv.patches.EntityPushPatch.PlayerEntityPushEvent;
+import ftbsc.bscv.patches.LiquidPushPatch.PlayerLiquidPushEvent;
+import ftbsc.bscv.patches.PacketPatch.PacketEvent;
+import ftbsc.bscv.tools.Setting;
+import net.minecraft.network.play.server.SEntityVelocityPacket;
+import net.minecraft.network.play.server.SExplosionPacket;
+import net.minecraftforge.common.ForgeConfigSpec;
+import net.minecraftforge.eventbus.api.SubscribeEvent;
+
+@AutoService(ILoadable.class)
+public class Immovable extends AbstractModule {
+
+	public final ForgeConfigSpec.ConfigValue<Boolean> explosions;
+	public final ForgeConfigSpec.ConfigValue<Boolean> server;
+	public final ForgeConfigSpec.ConfigValue<Boolean> liquids;
+	public final ForgeConfigSpec.ConfigValue<Boolean> entities;
+	public final ForgeConfigSpec.ConfigValue<Boolean> blocks;
+
+	public Immovable() {
+		super();
+
+		this.explosions = Setting.Bool.builder()
+			.fallback(true)
+			.name("explosions")
+			.comment("cancel velocity from explosions")
+			.build(this);
+		this.server = Setting.Bool.builder()
+			.fallback(true)
+			.name("server")
+			.comment("cancel velocity sent from server")
+			.build(this);
+		this.liquids = Setting.Bool.builder()
+			.fallback(true)
+			.name("liquids")
+			.comment("cancel velocity from liquids pushing")
+			.build(this);
+		this.entities = Setting.Bool.builder()
+			.fallback(true)
+			.name("entities")
+			.comment("cancel velocity from entities pushing")
+			.build(this);
+		this.blocks = Setting.Bool.builder()
+			.fallback(true)
+			.name("block")
+			.comment("cancel velocity from blocks pushing")
+			.build(this);
+	}
+
+	@SubscribeEvent
+	public void onPacket(PacketEvent.Incoming event) {
+		if (event.packet instanceof SExplosionPacket && this.explosions.get()) {
+			event.setCanceled(true);
+		}
+
+		if (event.packet instanceof SEntityVelocityPacket && this.server.get()) {
+			SEntityVelocityPacket packet = (SEntityVelocityPacket) event.packet;
+			if (packet.getId() == MC.player.getId()) {
+				event.setCanceled(true);
+			}
+		}
+	}
+
+	@SubscribeEvent
+	public void onEntityCollisions(PlayerEntityPushEvent event) {
+		if (this.entities.get()) event.setCanceled(true);
+	}
+
+	@SubscribeEvent
+	public void onBlockCollisions(PlayerBlockPushEvent event) {
+		if (this.blocks.get()) event.setCanceled(true);
+	}
+
+	@SubscribeEvent
+	public void onLiquidCollisions(PlayerLiquidPushEvent event) {
+		if (this.liquids.get()) event.setCanceled(true);
+	}
+
+}
diff --git a/src/main/java/ftbsc/bscv/patches/BlockPushPatch.java b/src/main/java/ftbsc/bscv/patches/BlockPushPatch.java
new file mode 100644
index 0000000..50fb677
--- /dev/null
+++ b/src/main/java/ftbsc/bscv/patches/BlockPushPatch.java
@@ -0,0 +1,46 @@
+package ftbsc.bscv.patches;
+
+import ftbsc.lll.processor.annotations.Injector;
+import ftbsc.lll.processor.annotations.Patch;
+import ftbsc.lll.processor.annotations.Target;
+import ftbsc.lll.tools.InsnSequence;
+import net.minecraft.client.entity.player.ClientPlayerEntity;
+import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.eventbus.api.Cancelable;
+import net.minecraftforge.eventbus.api.Event;
+
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.tree.*;
+
+public class BlockPushPatch {
+
+	@Cancelable
+	public static class PlayerBlockPushEvent extends Event {}
+
+	public static boolean shouldCancelBlockCollisions() {
+		return MinecraftForge.EVENT_BUS.post(new PlayerBlockPushEvent());
+	}
+
+	@Patch(value = ClientPlayerEntity.class, reason = "add hook to cancel block collisions")
+	public abstract static class BlockCollisionsOverride implements Opcodes {
+		@Target
+		abstract void moveTowardsClosestSpace(double x, double z);
+
+		@Injector
+		public void inject(ClassNode clazz, MethodNode main) {
+			LabelNode skip = new LabelNode();
+			InsnSequence is = new InsnSequence();
+			is.add(new MethodInsnNode(
+				INVOKESTATIC,
+				"ftbsc/bscv/patches/BlockPushPatch",
+				"shouldCancelBlockCollisions",
+				"()Z"
+			));
+			is.add(new JumpInsnNode(IFEQ, skip));
+			is.add(new InsnNode(RETURN));
+			is.add(skip);
+
+			main.instructions.insert(is); // hook at top
+		}
+	}
+}
diff --git a/src/main/java/ftbsc/bscv/patches/EntityPushPatch.java b/src/main/java/ftbsc/bscv/patches/EntityPushPatch.java
new file mode 100644
index 0000000..cbb63c6
--- /dev/null
+++ b/src/main/java/ftbsc/bscv/patches/EntityPushPatch.java
@@ -0,0 +1,51 @@
+package ftbsc.bscv.patches;
+
+import ftbsc.bscv.ICommons;
+import ftbsc.lll.processor.annotations.Injector;
+import ftbsc.lll.processor.annotations.Patch;
+import ftbsc.lll.processor.annotations.Target;
+import ftbsc.lll.tools.InsnSequence;
+import net.minecraft.entity.Entity;
+import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.eventbus.api.Cancelable;
+import net.minecraftforge.eventbus.api.Event;
+
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.tree.*;
+
+public class EntityPushPatch implements ICommons {
+
+	@Cancelable
+	public static class PlayerEntityPushEvent extends Event {}
+
+	public static boolean shouldCancelEntityCollisions(Entity e) {
+		if (e.equals(MC.player)) {
+			return MinecraftForge.EVENT_BUS.post(new PlayerEntityPushEvent());
+		}
+		return false;
+	}
+
+	@Patch(value = Entity.class, reason = "add hook to cancel entity collisions")
+	public abstract static class EntityCollisionsOverride implements Opcodes {
+		@Target
+		abstract void push(double x, double y, double z);
+
+		@Injector
+		public void inject(ClassNode clazz, MethodNode main) {
+			LabelNode skip = new LabelNode();
+			InsnSequence is = new InsnSequence();
+			is.add(new VarInsnNode(ALOAD, 0));
+			is.add(new MethodInsnNode(
+				INVOKESTATIC,
+				"ftbsc/bscv/patches/EntityPushPatch",
+				"shouldCancelEntityCollisions",
+				"(Lnet/minecraft/entity/Entity;)Z"
+			));
+			is.add(new JumpInsnNode(IFEQ, skip));
+			is.add(new InsnNode(RETURN));
+			is.add(skip);
+
+			main.instructions.insert(is); // hook at top
+		}
+	}
+}
diff --git a/src/main/java/ftbsc/bscv/patches/LiquidPushPatch.java b/src/main/java/ftbsc/bscv/patches/LiquidPushPatch.java
new file mode 100644
index 0000000..838bea3
--- /dev/null
+++ b/src/main/java/ftbsc/bscv/patches/LiquidPushPatch.java
@@ -0,0 +1,52 @@
+package ftbsc.bscv.patches;
+
+import ftbsc.bscv.ICommons;
+import ftbsc.lll.processor.annotations.Injector;
+import ftbsc.lll.processor.annotations.Patch;
+import ftbsc.lll.processor.annotations.Target;
+import ftbsc.lll.tools.InsnSequence;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.eventbus.api.Cancelable;
+import net.minecraftforge.eventbus.api.Event;
+
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.tree.*;
+
+public class LiquidPushPatch implements ICommons {
+
+	@Cancelable
+	public static class PlayerLiquidPushEvent extends Event {}
+
+	public static boolean shouldCancelLiquidCollisions(PlayerEntity player) {
+		if (player.equals(MC.player)) {
+			return MinecraftForge.EVENT_BUS.post(new PlayerLiquidPushEvent());
+		}
+		return false;
+	}
+
+	@Patch(value = PlayerEntity.class, reason = "add hook to cancel liquid collisions")
+	public abstract static class LiquidCollisionsOverride implements Opcodes {
+		@Target
+		abstract boolean isPushedByFluid();
+
+		@Injector
+		public void inject(ClassNode clazz, MethodNode main) {
+			LabelNode skip = new LabelNode();
+			InsnSequence is = new InsnSequence();
+			is.add(new VarInsnNode(ALOAD, 0));
+			is.add(new MethodInsnNode(
+				INVOKESTATIC,
+				"ftbsc/bscv/patches/LiquidPushPatch",
+				"shouldCancelLiquidCollisions",
+				"(Lnet/minecraft/entity/player/PlayerEntity;)Z"
+			));
+			is.add(new JumpInsnNode(IFEQ, skip));
+			is.add(new InsnNode(ICONST_0));
+			is.add(new InsnNode(IRETURN));
+			is.add(skip);
+
+			main.instructions.insert(is); // hook at top
+		}
+	}
+}