进度触发器
触发方式
实现原理
触发方式
它使用的是trigger进行触发
我们先看看mojang的代码
展开查看代码 net.minecraft.advancements.critereon.RecipeUnlockedTrigger
package net.minecraft.advancements.critereon;
import com.google.gson.JsonObject;
import net.minecraft.advancements.critereon.EntityPredicate.Composite;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.server.level.ServerPlayer;
import net.minecraft.util.GsonHelper;
import net.minecraft.world.item.crafting.Recipe;
public class RecipeUnlockedTrigger extends SimpleCriterionTrigger {
static final ResourceLocation ID = new ResourceLocation("recipe_unlocked");
public RecipeUnlockedTrigger() {
}
public ResourceLocation getId() {
return ID;
}
public TriggerInstance createInstance(JsonObject json, EntityPredicate.Composite entityPredicate, DeserializationContext conditionsParser) {
ResourceLocation resourceLocation = new ResourceLocation(GsonHelper.getAsString(json, "recipe"));
return new TriggerInstance(entityPredicate, resourceLocation);
}
public void trigger(ServerPlayer player, Recipe recipe) {
this.trigger(player, (arg2) -> arg2.matches(recipe));
}
public static TriggerInstance unlocked(ResourceLocation recipe) {
return new TriggerInstance(Composite.ANY, recipe);
}
public static class TriggerInstance extends AbstractCriterionTriggerInstance {
private final ResourceLocation recipe;
public TriggerInstance(EntityPredicate.Composite player, ResourceLocation recipe) {
super(RecipeUnlockedTrigger.ID, player);
this.recipe = recipe;
}
public JsonObject serializeToJson(SerializationContext context) {
JsonObject jsonObject = super.serializeToJson(context);
jsonObject.addProperty("recipe", this.recipe.toString());
return jsonObject;
}
public boolean matches(Recipe recipe) {
return this.recipe.equals(recipe.getId());
}
}
}
它被分为 SimpleCriterionTrigger 和 AbstractCriterionTriggerInstance 两个类
其中我们需要做的就是
写自己的trigger 和 matches
在服务器启动前将触发器注册
实现触发
接下来我们来实现配方合成时触发成就
写一个总触发器 CraftingRecipeTrigger类并且创建CraftingRecipeTrigger内部子类 TriggerInstance类
TriggerInstance需要实现序列化和创建对象
而CraftingRecipeTrigger所需要做的就是解析并反序列化创建实例 createInstance
在TriggerInstance实现matches判断
在CraftingRecipeTrigger实现trigger触发器
trigger触发器使用SimpleCriterionTrigger里面的trigger(ServerPlayer, Predicate)
注册实例(forge,fabric,architectury)
import com.google.gson.JsonObject;
import net.minecraft.advancements.critereon.*;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.world.item.ItemStack;
import org.jetbrains.annotations.NotNull;
public class CraftingRecipeTrigger extends SimpleCriterionTrigger
static final ResourceLocation ID = new ResourceLocation("tutorial", "crafting_recipe");
@Override
protected @NotNull TriggerInstance createInstance(@NotNull JsonObject json, EntityPredicate.@NotNull Composite player, @NotNull DeserializationContext context) {
return new TriggerInstance(player, ItemPredicate.fromJson(json.get("item")));
}
public void trigger(ServerPlayer player, ItemStack item) {
this.trigger(player, arg -> arg.matches(item));
}
// ... 1
public static class TriggerInstance extends AbstractCriterionTriggerInstance {
private final ItemPredicate item;
public TriggerInstance(EntityPredicate.Composite player, ItemPredicate item) {
super(CraftingRecipeTrigger.ID, player);
this.item = item;
}
@Override
public @NotNull JsonObject serializeToJson(@NotNull SerializationContext context) {
JsonObject jsonObject = super.serializeToJson(context);
jsonObject.add("item", this.item.serializeToJson());
return jsonObject;
}
public boolean matches(ItemStack item) {
return this.item.matches(item);
}
}
}
forge
在主类中实现
import net.minecraftforge.event.entity.player.PlayerEvent;
import net.minecraftforge.fml.common.Mod;
@Mod("tutorial")
public class Tutorial {
public static final CraftingRecipeTrigger cr = new CraftingRecipeTrigger();
public Tutorial() {
}
@SubscribeEvent
public static void craftEvents(PlayerEvent.ItemCraftedEvent event) {
if (event.getEntity() instanceof ServerPlayer serverPlayer) {
cr.trigger(serverPlayer, event.getCrafting());// 触发
}
}
}
Fabric
在主类中实现
import net.fabricmc.api.ModInitializer;
public class Tutorial implements ModInitializer {
public static final CraftingRecipeTrigger cr = new CraftingRecipeTrigger();
@Override
public void onInitialize() {
}
}
import net.minecraft.world.inventory.ResultSlot;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Inject;
@Mixin(ResultSlot.class)
public class MixinCraftingRecipe {
@Inject(
method = "checkTakeAchievements",
at = @At(value = "INVOKE",
target = "Lnet/minecraft/world/item/ItemStack;onCraftedBy(Lnet/minecraft/world/level/Level;Lnet/minecraft/world/entity/player/Player;I)V",
shift = At.Shift.AFTER)
)
private void craft(ItemStack itemStack, CallbackInfo ci) {
Tutorial.cr.trigger(serverPlayer, itemStack);
}
}
Architectury
多加载器模式触发的事件
import dev.architectury.event.events.common.PlayerEvent;
public class Tutorial {
public static final CraftingRecipeTrigger cr = new CraftingRecipeTrigger();
public static void init() {
PlayerEvent.CRAFT_ITEM.register((player, constructed, inventory) -> {
cr.trigger(serverPlayer, constructed);
});
}
}