110 lines
4.3 KiB
Java
110 lines
4.3 KiB
Java
package mekanism.api;
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import net.minecraft.block.Block;
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import net.minecraft.item.Item;
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import net.minecraft.item.ItemStack;
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/**
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* Use this class's 'getItem()' method to retrieve ItemStacks from the 'Mekanism'
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* class.
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* @author AidanBrady
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*
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*/
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public final class ItemRetriever {
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/** The 'MekanismItems' class that items are retrieved from. */
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private static Class MekanismItems;
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/** The 'MekanismBlocks' class that blocks are retrieved from. */
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private static Class MekanismBlocks;
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/**
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* Attempts to retrieve an ItemStack of an item with the declared identifier.
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*
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* Mekanism identifiers follow an easy-to-remember pattern. All identifiers
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* are identical to the String returned by 'getItemName().' None include spaces,
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* and all start with a capital letter. The name that shows up in-game can be
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* stripped down to identifier form by removing spaces and all non-alphabetic
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* characters (,./'=-_). Below is an example:
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*
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* ItemStack enrichedAlloy = ItemRetriever.getItem("EnrichedAlloy");
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*
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* Note that for items or blocks that have specific metadata you will need to create
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* a new ItemStack with that specified value, as this will only return an ItemStack
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* with the meta value '0.'
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*
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* Make sure you run this in or after FMLPostInitializationEvent runs, because most
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* items are registered when FMLInitializationEvent runs. However, some items ARE
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* registered later in order to hook into other mods. In a rare circumstance you may
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* have to add "after:Mekanism" in the @Mod 'dependencies' annotation.
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*
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* @param identifier - a String to be searched in the 'MekanismItems' class
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* @return an ItemStack of the declared identifier, otherwise null.
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*/
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public static ItemStack getItem(String identifier) {
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try {
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if (MekanismItems == null) {
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MekanismItems = Class.forName("mekanism.common.MekanismItems");
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}
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Object ret = MekanismItems.getField(identifier).get(null);
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if (ret instanceof Item) {
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return new ItemStack((Item) ret, 1);
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} else {
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return null;
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}
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} catch (Exception e) {
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System.err.println(
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"Error retrieving item with identifier '" + identifier
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+ "': " + e.getMessage()
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);
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return null;
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}
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}
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/**
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* Attempts to retrieve an ItemStack of a block with the declared identifier.
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*
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* Mekanism identifiers follow an easy-to-remember pattern. All identifiers
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* are identical to the String returned by 'getItemName().' None include spaces,
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* and all start with a capital letter. The name that shows up in-game can be
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* stripped down to identifier form by removing spaces and all non-alphabetic
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* characters (,./'=-_). Below is an example:
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*
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* ItemStack enrichedAlloy = ItemRetriever.getItem("EnrichedAlloy");
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*
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* Note that for items or blocks that have specific metadata you will need to create
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* a new ItemStack with that specified value, as this will only return an ItemStack
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* with the meta value '0.'
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*
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* Make sure you run this in or after FMLPostInitializationEvent runs, because most
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* items are registered when FMLInitializationEvent runs. However, some items ARE
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* registered later in order to hook into other mods. In a rare circumstance you may
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* have to add "after:Mekanism" in the @Mod 'dependencies' annotation.
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*
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* @param identifier - a String to be searched in the 'MekanismBlocks' class
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* @return an ItemStack of the declared identifier, otherwise null.
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*/
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public static ItemStack getBlock(String identifier) {
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try {
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if (MekanismBlocks == null) {
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MekanismBlocks = Class.forName("mekanism.common.MekanismBlocks");
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}
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Object ret = MekanismBlocks.getField(identifier).get(null);
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if (ret instanceof Block) {
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return new ItemStack((Block) ret, 1);
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} else {
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return null;
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}
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} catch (Exception e) {
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System.err.println(
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"Error retrieving block with identifier '" + identifier
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+ "': " + e.getMessage()
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);
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return null;
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}
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}
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}
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