96 lines
3.4 KiB
Java
96 lines
3.4 KiB
Java
/*
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* Minecraft Forge
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* Copyright (c) 2016-2020.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation version 2.1
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* of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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package net.minecraftforge.common.extensions;
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import net.minecraft.block.AbstractBlock;
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import net.minecraft.block.BlockState;
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import net.minecraft.entity.item.minecart.AbstractMinecartEntity;
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import net.minecraft.state.properties.RailShape;
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import net.minecraft.util.math.BlockPos;
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import net.minecraft.world.IBlockReader;
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import net.minecraft.world.World;
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import javax.annotation.Nullable;
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public interface IAbstractRailBlock
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{
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default AbstractBlock getAbstractBlock()
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{
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return (AbstractBlock)this;
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}
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/**
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* Return true if the rail can make corners.
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* Used by placement logic.
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* @param world The world.
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* @param pos Block's position in world
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* @return True if the rail can make corners.
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*/
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boolean isFlexibleRail(BlockState state, IBlockReader world, BlockPos pos);
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/**
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* Returns true if the rail can make up and down slopes.
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* Used by placement logic.
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* @param world The world.
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* @param pos Block's position in world
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* @return True if the rail can make slopes.
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*/
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default boolean canMakeSlopes(BlockState state, IBlockReader world, BlockPos pos)
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{
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return true;
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}
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/**
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* Return the rail's direction.
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* Can be used to make the cart think the rail is a different shape,
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* for example when making diamond junctions or switches.
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* The cart parameter will often be null unless it it called from EntityMinecart.
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*
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* @param world The world.
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* @param pos Block's position in world
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* @param state The BlockState
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* @param cart The cart asking for the metadata, null if it is not called by EntityMinecart.
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* @return The direction.
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*/
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RailShape getRailDirection(BlockState state, IBlockReader world, BlockPos pos, @Nullable AbstractMinecartEntity cart);
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/**
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* Returns the max speed of the rail at the specified position.
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* @param world The world.
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* @param cart The cart on the rail, may be null.
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* @param pos Block's position in world
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* @return The max speed of the current rail.
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*/
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default float getRailMaxSpeed(BlockState state, World world, BlockPos pos, net.minecraft.entity.item.minecart.AbstractMinecartEntity cart)
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{
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return 0.4f;
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}
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/**
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* This function is called by any minecart that passes over this rail.
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* It is called once per update tick that the minecart is on the rail.
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* @param world The world.
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* @param cart The cart on the rail.
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* @param pos Block's position in world
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*/
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default void onMinecartPass(BlockState state, World world, BlockPos pos, net.minecraft.entity.item.minecart.AbstractMinecartEntity cart){}
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}
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