/
CauldronContentType.java
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/
CauldronContentType.java
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package knightminer.inspirations.library.recipe.cauldron.contents;
import com.google.gson.JsonObject;
import com.google.gson.JsonSyntaxException;
import io.netty.handler.codec.DecoderException;
import io.netty.handler.codec.EncoderException;
import knightminer.inspirations.Inspirations;
import knightminer.inspirations.library.recipe.cauldron.CauldronContentTypes;
import knightminer.inspirations.recipes.recipe.cauldron.contents.CauldronContents;
import net.minecraft.nbt.CompoundNBT;
import net.minecraft.network.PacketBuffer;
import net.minecraft.util.JSONUtils;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.text.ITextComponent;
import net.minecraftforge.common.util.Constants.NBT;
import javax.annotation.Nullable;
import java.util.HashMap;
import java.util.Map;
import java.util.Optional;
import java.util.function.Function;
/**
* Represents a type of contents that can be stored in the cauldron
* @param <T> Type of values contained in this type
*/
public abstract class CauldronContentType<T> {
/** Resource location meaning no texture exists. Basically a copy of {@link net.minecraft.client.renderer.texture.MissingTextureSprite#getLocation()} that is server safe */
public static final ResourceLocation NO_TEXTURE = Inspirations.getResource("missingno");
private final Map<T, ICauldronContents> cache = new HashMap<>();
private final Map<ICauldronContents,T> valueOverrides = new HashMap<>();
private final Function<T, ICauldronContents> constructor = val -> new CauldronContents<>(this, val);
/**
* Gets a value of the given type
* @param value Type of value
* @return Value to fetch
*/
public ICauldronContents of(T value) {
return cache.computeIfAbsent(value, constructor);
}
/* Overrides */
/**
* Causes the given instance to return a value for this type.
* @param instance Contents instance for override
* @param value Value supplier
*/
public void setValue(ICauldronContents instance, T value) {
if (instance.getType() == this) {
throw new IllegalArgumentException("Attempted to register override within the same type");
}
valueOverrides.put(instance, value);
}
/**
* Causes a specific value from this function to instead return the given instance. Need to call {@link #setValue(ICauldronContents, Object)} before using
* @param value Value being replaced
* @param instance Instance to use for override
*/
public void setResult(T value, ICauldronContents instance) {
Optional<T> optional = instance.get(this);
if (optional.isPresent()) {
if (!optional.get().equals(value)) {
throw new IllegalArgumentException("Override contents does not match the value type");
}
} else {
// add a value override if missing
valueOverrides.put(instance, value);
}
// just add it to the cache, so it will be fetched later
cache.put(value, instance);
}
/**
* Gets the overridden value for the given instance
* @param instance Instance
* @return Optional of override value, or empty if no override exists
*/
public Optional<T> getOverrideValue(ICauldronContents instance) {
return Optional.ofNullable(valueOverrides.get(instance));
}
/* Display methods */
/**
* Gets the texture name for the given type.
* The name will be passed through {@link knightminer.inspirations.recipes.RecipesClientEvents#cauldronTextures} to convert from a generic location to a texture path
* @param value Value to fetch texture
* @return Texture location
*/
public abstract ResourceLocation getTexture(T value);
/**
* Gets the tint color for the given type, used for tint indexes
* @param value Value
* @return Tint index
*/
public int getColor(T value) {
return -1;
}
/**
* Gets the name from the given value
* @param value Value to fetch name
* @return Value name
*/
public abstract ITextComponent getDisplayName(T value);
/**
* Gets the mod ID for the given value
* @param value Value
* @return Mod ID
*/
@Nullable
public String getModId(T value) {
return null;
}
/* Serializing and deserializing */
/**
* Gets the name of the given value for writing to JSON and NBT
* @param value Value
* @return Name of the value
*/
public abstract String getName(T value);
/**
* Gets the entry for a given value
* @param name Name
* @return Entry, or null if missing
*/
@Nullable
public abstract T getEntry(String name);
/**
* Gets the key used for JSON and NBT
* @return JSON and NBT key
*/
public String getKey() {
return "name";
}
/**
* Reads the given type from NBT
* @param tag NBT tag
* @return Read value
*/
@Nullable
public ICauldronContents read(CompoundNBT tag) {
if (tag.contains(getKey(), NBT.TAG_STRING)) {
T value = getEntry(tag.getString(getKey()));
if (value != null) {
return of(value);
}
}
return null;
}
/**
* Reads the given type from JSON
* @param json JSON object
* @return Read value=
* @throws com.google.gson.JsonSyntaxException if the JSON is invalid
*/
public ICauldronContents read(JsonObject json) {
String name = JSONUtils.getString(json, getKey());
T value = getEntry(name);
if (value == null) {
throw new JsonSyntaxException("Invalid name '" + name + "' for type '" + CauldronContentTypes.getName(this) + "'");
}
return of(value);
}
/**
* Reads the given type from the packet buffer
* @param buffer Packet buffer
* @return Read value
* @throws DecoderException if the type is invalid
*/
public ICauldronContents read(PacketBuffer buffer) {
String name = buffer.readString(Short.MAX_VALUE);
T value = getEntry(name);
if (value != null) {
return of(value);
}
throw new DecoderException("Invalid name '" + name + "' for type " + this);
}
/**
* Writes the given type to NBT
* @param contents Contents to write
* @param tag NBT tag
*/
public void write(ICauldronContents contents, CompoundNBT tag) {
contents.get(this).ifPresent(val -> tag.putString(getKey(), getName(val)));
}
/**
* Writes the given type to JSON
* @param contents Contents to write
* @param json JSON object
*/
public void write(ICauldronContents contents, JsonObject json) {
contents.get(this).ifPresent(val -> json.addProperty(getKey(), getName(val)));
}
/**
* Writes the given type to the packet buffer
* @param contents Contents to write
* @param buffer Packet buffer
*/
public void write(ICauldronContents contents, PacketBuffer buffer) {
Optional<T> value = contents.get(this);
if (value.isPresent()) {
buffer.writeString(getName(value.get()));
} else {
throw new EncoderException("Invalid type for contents argument");
}
}
@Override
public String toString() {
return String.format("CauldronContentType[%s]", CauldronContentTypes.getName(this));
}
}