Staff Mod 0.10.0-beta

StaffMod/src/main/java/opekope2/avm_staff/api/entity/IImpactTnt.java

@@ -0,0 +1,51 @@
+/*
+ * AvM Staff Mod
+ * Copyright (c) 2024 opekope2
+ *
+ * This mod is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This mod is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this mod. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package opekope2.avm_staff.api.entity;
+
+import net.minecraft.entity.TntEntity;
+import net.minecraft.entity.data.DataTracker;
+import net.minecraft.entity.data.TrackedData;
+import net.minecraft.entity.data.TrackedDataHandlerRegistry;
+
+/**
+ * A TNT, which can be configured to explode when collides (with blocks or other entities).
+ */
+public interface IImpactTnt {
+    /**
+     * Returns if the current TNT explodes, when it collides.
+     */
+    boolean explodesOnImpact();
+
+    /**
+     * Configures the current TNT to explode or not, when it collides.
+     *
+     * @param explode Whether to explode on collision
+     */
+    void explodeOnImpact(boolean explode);
+
+    /**
+     * NBT Key for TNT's explodes on impact property.
+     */
+    String EXPLODES_ON_IMPACT_NBT_KEY = "ExplodesOnImpact";
+
+    /**
+     * Data tracker for TNT's explodes on impact property.
+     */
+    TrackedData<Boolean> EXPLODES_ON_IMPACT = DataTracker.registerData(TntEntity.class, TrackedDataHandlerRegistry.BOOLEAN);
+}

StaffMod/src/main/java/opekope2/avm_staff/mixin/TntEntityMixin.java

@@ -0,0 +1,111 @@
+/*
+ * AvM Staff Mod
+ * Copyright (c) 2024 opekope2
+ *
+ * This mod is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This mod is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this mod. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package opekope2.avm_staff.mixin;
+
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.EntityType;
+import net.minecraft.entity.LivingEntity;
+import net.minecraft.entity.TntEntity;
+import net.minecraft.nbt.NbtCompound;
+import net.minecraft.nbt.NbtElement;
+import net.minecraft.world.World;
+import opekope2.avm_staff.api.entity.IImpactTnt;
+import org.jetbrains.annotations.Nullable;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import java.util.List;
+
+@Mixin(TntEntity.class)
+public abstract class TntEntityMixin extends Entity implements IImpactTnt {
+    private TntEntityMixin(EntityType<?> type, World world) {
+        super(type, world);
+    }
+
+    @Shadow
+    protected abstract void explode();
+
+    @Shadow
+    @Nullable
+    public abstract LivingEntity getOwner();
+
+    @Inject(method = "initDataTracker", at = @At("TAIL"))
+    private void initDataTracker(CallbackInfo ci) {
+        dataTracker.startTracking(EXPLODES_ON_IMPACT, false);
+    }
+
+    @Inject(method = "writeCustomDataToNbt", at = @At("TAIL"))
+    private void writeCustomDataToNbt(NbtCompound nbt, CallbackInfo ci) {
+        nbt.putBoolean(EXPLODES_ON_IMPACT_NBT_KEY, explodesOnImpact());
+    }
+
+    @Inject(method = "readCustomDataFromNbt", at = @At("TAIL"))
+    private void readCustomDataFromNbt(NbtCompound nbt, CallbackInfo ci) {
+        if (nbt.contains(EXPLODES_ON_IMPACT_NBT_KEY, NbtElement.BYTE_TYPE)) {
+            explodeOnImpact(nbt.getBoolean(EXPLODES_ON_IMPACT_NBT_KEY));
+        }
+    }
+
+    @Inject(
+            method = "tick",
+            at = @At(
+                    value = "INVOKE",
+                    target = "Lnet/minecraft/entity/TntEntity;move(Lnet/minecraft/entity/MovementType;Lnet/minecraft/util/math/Vec3d;)V",
+                    shift = At.Shift.AFTER
+            )
+    )
+    private void explodeOnImpact(CallbackInfo ci) {
+        if (!explodesOnImpact()) return;
+
+        boolean explode = horizontalCollision || verticalCollision;
+        if (!explode) {
+            Entity owner = getOwner();
+            List<Entity> collisions = getWorld().getOtherEntities(this, getBoundingBox(), entity -> entity != owner);
+            explode = !collisions.isEmpty();
+
+            for (Entity collider : collisions) {
+                if (collider instanceof TntEntity tnt && ((IImpactTnt) tnt).explodesOnImpact()) {
+                    // Force explode other TNT, because the current TNT gets discarded before the other TNT gets processed
+                    tnt.setFuse(0);
+                }
+            }
+        }
+
+        if (!explode) return;
+
+        if (!getWorld().isClient) {
+            // Server sends EntitiesDestroyS2CPacket to client, because TntEntity.getOwner() isn't available on the client.
+            discard();
+            explode();
+        }
+    }
+
+    @Override
+    public boolean explodesOnImpact() {
+        return dataTracker.get(EXPLODES_ON_IMPACT);
+    }
+
+    @Override
+    public void explodeOnImpact(boolean explode) {
+        dataTracker.set(EXPLODES_ON_IMPACT, explode);
+    }
+}

StaffMod/src/main/kotlin/opekope2/avm_staff/internal/staff_item_handler/TntHandler.kt

@@ -0,0 +1,54 @@
+/*
+ * AvM Staff Mod
+ * Copyright (c) 2024 opekope2
+ *
+ * This mod is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This mod is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this mod. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package opekope2.avm_staff.internal.staff_item_handler
+
+import net.minecraft.entity.LivingEntity
+import net.minecraft.entity.TntEntity
+import net.minecraft.item.BlockItem
+import net.minecraft.item.ItemStack
+import net.minecraft.item.Items
+import net.minecraft.sound.SoundCategory
+import net.minecraft.sound.SoundEvents
+import net.minecraft.util.ActionResult
+import net.minecraft.util.Hand
+import net.minecraft.world.World
+import net.minecraft.world.event.GameEvent
+import opekope2.avm_staff.api.item.StaffItemHandler
+import opekope2.avm_staff.api.item.renderer.InsideStaffBlockStateRenderer
+import opekope2.avm_staff.api.entity.IImpactTnt
+
+class TntHandler : StaffItemHandler() {
+    override val staffItemRenderer = InsideStaffBlockStateRenderer.forBlockItem(Items.TNT as BlockItem)
+
+    override fun attack(staffStack: ItemStack, world: World, attacker: LivingEntity, hand: Hand): ActionResult {
+        if (world.isClient) return ActionResult.SUCCESS
+
+        world.spawnEntity(
+            TntEntity(world, attacker.x, attacker.eyeY, attacker.z, attacker).apply {
+                velocity = attacker.rotationVector.normalize()
+                @Suppress("KotlinConstantConditions") // IImpactTnt is ducked into TntEntity
+                (this as IImpactTnt).explodeOnImpact(true)
+                world.playSound(null, x, y, z, SoundEvents.ENTITY_TNT_PRIMED, SoundCategory.BLOCKS, 1.0f, 1.0f)
+                world.emitGameEvent(attacker, GameEvent.PRIME_FUSE, pos)
+            }
+        )
+
+        return ActionResult.SUCCESS
+    }
+}

StaffMod/src/main/kotlin/opekope2/avm_staff/internal/staff_item_handler/VanillaStaffItemHandlers.kt

@@ -56,6 +56,8 @@ fun register() {
 
     SNOW_BLOCK.registerHandler(SnowBlockHandler())
 
+    TNT.registerHandler(TntHandler())
+
     WHITE_WOOL.registerHandler(WoolHandler(WHITE_WOOL as BlockItem, WHITE_CARPET as BlockItem))
     ORANGE_WOOL.registerHandler(WoolHandler(ORANGE_WOOL as BlockItem, ORANGE_CARPET as BlockItem))
     MAGENTA_WOOL.registerHandler(WoolHandler(MAGENTA_WOOL as BlockItem, MAGENTA_CARPET as BlockItem))

StaffMod/src/main/resources/avm_staff.mixins.json

@@ -11,6 +11,7 @@
   ],
   "mixins": [
     "IAbstractFurnaceBlockEntityMixin",
-    "LivingEntityMixin"
+    "LivingEntityMixin",
+    "TntEntityMixin"
   ]
 }

gradle.properties

@@ -9,7 +9,7 @@ loader_version=0.15.3
 java_version=17
 ##########################################################################
 # Mod Properties
-mod_version=0.9.0-beta
+mod_version=0.10.0-beta
 maven_group=opekope2.avm_staff
 ##########################################################################
 # Kotlin Dependencies