minecraft-kajetans-mod/src/main/java/me/km/blockprotections/BlockProtection.java

package me.km.blockprotections;

import me.km.KajetansMod;
import me.km.api.Utils;
import me.km.api.Module;
import me.km.api.ModuleListener;
import me.km.permissions.Permissions;
import net.minecraft.block.Block;
import net.minecraft.block.BlockContainer;
import net.minecraft.block.BlockDoor;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Blocks;
import net.minecraft.util.EnumHand;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraftforge.event.entity.player.PlayerInteractEvent;
import net.minecraftforge.event.world.BlockEvent;
import net.minecraftforge.fml.common.eventhandler.EventPriority;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;

public class BlockProtection extends ModuleListener
{
    private final BlockProtectionBank bank;
    
    public BlockProtection(Module m) 
    {
        super(m);
        bank = KajetansMod.blocks.getDataBank(BlockProtectionBank.class);
    }
    
    @SubscribeEvent(priority = EventPriority.HIGHEST)
    public void onBlockPlace(BlockEvent.PlaceEvent e)
    {
        if(!KajetansMod.worldManager.getWorldPreferences(e.getWorld()).blockProtection)
        {
            return;
        }
        Block b = e.getPlacedBlock().getBlock();
        if(!Utils.shouldBeProtected(b))
        {
            return;
        }     
        EntityPlayer p = e.getPlayer();
        World w = e.getWorld();
        
        // Deny placing chests near other protected chests
        if(b == Blocks.CHEST || b == Blocks.TRAPPED_CHEST)
        {
            BlockPos otherChest = Utils.getSameNearbyBlock(w, e.getPos(), b);
            if(otherChest != null && !bank.hasAccess(otherChest, w, p.getGameProfile(), true) && !KajetansMod.perms.has(p, Permissions.BLOCK_BYPASS))
            {
                this.getModule().send(p, "Du darfst diesen Block hier nicht setzen");
                e.setCanceled(true);
                return;
            }        
        } 
        
        // Deny placing of hoppers under blocks
        if(b == Blocks.HOPPER)
        {
            BlockPos pos = e.getPos().add(0, 1, 0);
            if(w.getBlockState(pos).getBlock() instanceof BlockContainer)
            {
                if(!bank.hasAccess(pos, w, p, true) && !KajetansMod.perms.has(p, Permissions.BLOCK_BYPASS))
                {
                    this.getModule().send(p, "Du darfst diesen Block hier nicht setzen");
                    e.setCanceled(true);
                }               
            }            
        }
    }
    
    @SubscribeEvent(priority = EventPriority.HIGHEST)
    public void onBlockBreak(BlockEvent.BreakEvent e)
    {
        if(!KajetansMod.worldManager.getWorldPreferences(e.getWorld()).blockProtection)
        {
            return;
        }
        EntityPlayer p = e.getPlayer();
        IBlockState state = e.getState();
        if(Utils.shouldBeProtected(state.getBlock()))
        {
            BlockPos pos = e.getPos();
            if(Utils.getStateValue(state, BlockDoor.HALF) == BlockDoor.EnumDoorHalf.UPPER)
            {
                pos = pos.add(0, -1, 0);
            } 
            World w = e.getWorld();
            if(!bank.doesExist(pos, w))
            {
                return;
            }       
            if(bank.hasAccess(pos, w, p, false) || KajetansMod.perms.has(p, Permissions.BLOCK_BYPASS))
            {
                bank.removeBlock(pos, w, p);
                return;
            }   
            e.setCanceled(true);
            this.getModule().send(p, "Du hast keinen Zugriff auf diesen Block.");
        }             
    }
    
    @SubscribeEvent(priority = EventPriority.HIGHEST)
    public void onContainerOpen(PlayerInteractEvent.RightClickBlock e)
    {
        if(e.getHand() != EnumHand.MAIN_HAND || !KajetansMod.worldManager.getWorldPreferences(e.getWorld()).blockProtection)
        {
            return;
        }
        IBlockState state = e.getWorld().getBlockState(e.getPos());
        if(!Utils.shouldBeProtected(state.getBlock()))
        {
            return;
        }
        EntityPlayer p = e.getEntityPlayer();
        BlockPos pos = e.getPos();
        if(Utils.getStateValue(state, BlockDoor.HALF) == BlockDoor.EnumDoorHalf.UPPER)
        {
            pos = pos.add(0, -1, 0);
        }
        if(bank.hasAccess(pos, e.getWorld(), p, true) || KajetansMod.perms.has(p, Permissions.BLOCK_BYPASS))
        {
            return;
        }  
        this.getModule().send(p, "Du hast keinen Zugriff auf diesen Block.");
        e.setCanceled(true);   
    }
}