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Add some world border limitations #28

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Add some world border limitations #28

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5fd6ba3
feat: Aggressive world borders
Awakened-Redstone Aug 28, 2025
c455a85
feat: Aggressive world borders
Awakened-Redstone Aug 28, 2025
59c8c44
chore: Increase max height
Awakened-Redstone Aug 28, 2025
2d01f52
Merge branch 'refs/heads/toybox-1.21.7' into entity-stuff
Awakened-Redstone Sep 1, 2025
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31 changes: 30 additions & 1 deletion src/main/java/net/modfest/fireblanket/mixin/entity_ticking/MixinLivingEntity.java
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Original file line number Diff line number Diff line change
@@ -1,21 +1,29 @@
package net.modfest.fireblanket.mixin.entity_ticking;

import com.llamalad7.mixinextras.sugar.Local;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityType;
import net.minecraft.entity.LivingEntity;
import net.minecraft.nbt.NbtCompound;
import net.minecraft.server.world.ServerWorld;
import net.minecraft.storage.ReadView;
import net.minecraft.storage.WriteView;
import net.minecraft.util.math.MathHelper;
import net.minecraft.util.math.Vec3d;
import net.minecraft.world.World;
import net.minecraft.world.border.WorldBorder;
import net.modfest.fireblanket.mixinsupport.ImmmovableLivingEntity;
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.Redirect;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;

@Mixin(LivingEntity.class)
public abstract class MixinLivingEntity extends Entity implements ImmmovableLivingEntity {
@Shadow
public abstract void kill(ServerWorld world);

private boolean fireblanket$movementless = false;

public MixinLivingEntity(EntityType<?> type, World world) {
Expand Down Expand Up @@ -43,4 +51,25 @@ public MixinLivingEntity(EntityType<?> type, World world) {
public void setNoMovement(boolean noMovement) {
this.fireblanket$movementless = noMovement;
}

@Inject(at = @At(value = "INVOKE", target = "Lnet/minecraft/world/border/WorldBorder;getDamagePerBlock()D"), method = "baseTick")
private void doNotLeaveTheWorldBorderPlease(CallbackInfo ci, @Local ServerWorld serverWorld) {
this.kill(serverWorld);
this.setVelocity(Vec3d.ZERO);
this.scheduleVelocityUpdate();
}

@Inject(at = @At("RETURN"), method = "tick")
private void doNotGoTooFarPlease(CallbackInfo ci) {
WorldBorder border = getWorld().getWorldBorder();
double maxOutOfBoundsDistance = 64;

int topY = getWorld().getHeight() - getWorld().getBottomY();
double x = MathHelper.clamp(this.getX(), border.getBoundWest() - maxOutOfBoundsDistance, border.getBoundEast() + maxOutOfBoundsDistance);
double y = MathHelper.clamp(this.getY(), getWorld().getBottomY() - maxOutOfBoundsDistance, topY + maxOutOfBoundsDistance * 100);
double z = MathHelper.clamp(this.getZ(), border.getBoundNorth() - maxOutOfBoundsDistance, border.getBoundSouth() + maxOutOfBoundsDistance);
if (x != this.getX() || y != this.getY() || z != this.getZ()) {
this.setPosition(x, y, z);
}
}
}
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