time changer, part 1

src/main/java/de/ellpeck/naturesaura/blocks/BlockTimeChanger.java

@@ -0,0 +1,13 @@
+package de.ellpeck.naturesaura.blocks;
+
+import de.ellpeck.naturesaura.blocks.tiles.TileEntityTimeChanger;
+import net.minecraft.block.SoundType;
+import net.minecraft.block.material.Material;
+
+public class BlockTimeChanger extends BlockContainerImpl {
+    public BlockTimeChanger() {
+        super(Material.WOOD, "time_changer", TileEntityTimeChanger.class, "time_changer");
+        this.setSoundType(SoundType.WOOD);
+        this.setHardness(2);
+    }
+}

src/main/java/de/ellpeck/naturesaura/blocks/ModBlocks.java

@@ -47,4 +47,5 @@ public final class ModBlocks {
     public static final Block GOLD_BRICK = new BlockImpl("gold_brick", Material.ROCK).setSoundType(SoundType.STONE).setHardness(2F);
     public static final Block RF_CONVERTER = ModConfig.enabledFeatures.rfConverter ? new BlockRFConverter() : null;
     public static final Block MOSS_GENERATOR = new BlockMossGenerator();
+    public static final Block TIME_CHANGER = new BlockTimeChanger();
 }

src/main/java/de/ellpeck/naturesaura/blocks/tiles/TileEntityTimeChanger.java

@@ -0,0 +1,129 @@
+package de.ellpeck.naturesaura.blocks.tiles;
+
+import de.ellpeck.naturesaura.Helper;
+import de.ellpeck.naturesaura.api.NaturesAuraAPI;
+import de.ellpeck.naturesaura.api.aura.chunk.IAuraChunk;
+import de.ellpeck.naturesaura.api.aura.type.IAuraType;
+import de.ellpeck.naturesaura.items.ModItems;
+import net.minecraft.entity.item.EntityItem;
+import net.minecraft.entity.item.EntityItemFrame;
+import net.minecraft.init.Items;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.network.play.server.SPacketTimeUpdate;
+import net.minecraft.server.management.PlayerList;
+import net.minecraft.util.EntitySelectors;
+import net.minecraft.util.ITickable;
+import net.minecraft.util.math.AxisAlignedBB;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.MathHelper;
+import net.minecraft.world.WorldServer;
+
+import java.util.List;
+
+public class TileEntityTimeChanger extends TileEntityImpl implements ITickable {
+
+    private long goalTime;
+
+    @Override
+    public void update() {
+        if (!this.world.isRemote) {
+            List<EntityItemFrame> frames = Helper.getAttachedItemFrames(this.world, this.pos);
+            for (EntityItemFrame frame : frames) {
+                ItemStack frameStack = frame.getDisplayedItem();
+                if (frameStack.isEmpty() || frameStack.getItem() != ModItems.CLOCK_HAND)
+                    continue;
+
+                if (this.goalTime > 0) {
+                    long current = this.world.getWorldTime();
+                    long toAdd = Math.min(75, this.goalTime - current);
+                    if (toAdd <= 0) {
+                        this.goalTime = 0;
+                        this.sendToClients();
+                        return;
+                    }
+                    this.world.setWorldTime(current + toAdd);
+
+                    BlockPos spot = IAuraChunk.getHighestSpot(this.world, this.pos, 35, this.pos);
+                    IAuraChunk.getAuraChunk(this.world, spot).drainAura(spot, (int) toAdd * 20);
+
+                    if (this.world instanceof WorldServer) {
+                        PlayerList list = this.world.getMinecraftServer().getPlayerList();
+                        list.sendPacketToAllPlayersInDimension(new SPacketTimeUpdate(
+                                this.world.getTotalWorldTime(), this.world.getWorldTime(),
+                                this.world.getGameRules().getBoolean("doDaylightCycle")), this.world.provider.getDimension());
+                    }
+                    return;
+                }
+
+                if (this.world.getTotalWorldTime() % 20 != 0)
+                    return;
+
+                List<EntityItem> items = this.world.getEntitiesWithinAABB(EntityItem.class,
+                        new AxisAlignedBB(this.pos).grow(1), EntitySelectors.IS_ALIVE);
+                for (EntityItem item : items) {
+                    if (item.cannotPickup())
+                        continue;
+                    ItemStack stack = item.getItem();
+                    if (stack.isEmpty() || stack.getItem() != Items.CLOCK)
+                        continue;
+
+                    int dayGoal = MathHelper.floor((frame.getRotation() / 8F) * 24000F) + 18000;
+                    long current = this.world.getWorldTime();
+                    long toMove = (24000 - current % 24000 + dayGoal) % 24000;
+                    this.goalTime = current + toMove;
+                    this.sendToClients();
+
+                    if (stack.getCount() <= 1)
+                        item.setDead();
+                    else {
+                        stack.shrink(1);
+                        item.setItem(stack);
+                    }
+                    return;
+                }
+            }
+            if (this.goalTime > 0) {
+                this.goalTime = 0;
+                this.sendToClients();
+            }
+        } else if (this.goalTime > 0) {
+            if (this.world.getTotalWorldTime() % 5 == 0)
+                NaturesAuraAPI.instance().spawnParticleStream(
+                        this.pos.getX() + (float) this.world.rand.nextGaussian() * 5F,
+                        this.pos.getY() + 1 + this.world.rand.nextFloat() * 5F,
+                        this.pos.getZ() + (float) this.world.rand.nextGaussian() * 5F,
+                        this.pos.getX() + this.world.rand.nextFloat(),
+                        this.pos.getY() + this.world.rand.nextFloat(),
+                        this.pos.getZ() + this.world.rand.nextFloat(),
+                        this.world.rand.nextFloat() * 0.07F + 0.07F, IAuraType.forWorld(this.world).getColor(), this.world.rand.nextFloat() + 0.5F);
+
+            if (this.world.rand.nextFloat() >= 0.25F) {
+                int color = this.goalTime % 24000 > 12000 ? 0xe2e2e2 : 0xffe926;
+                NaturesAuraAPI.instance().spawnMagicParticle(
+                        this.pos.getX() + this.world.rand.nextFloat(),
+                        this.pos.getY() + 1,
+                        this.pos.getZ() + this.world.rand.nextFloat(),
+                        -0.05F - this.world.rand.nextFloat() * 0.02F,
+                        this.world.rand.nextFloat() * 0.25F,
+                        this.world.rand.nextGaussian() * 0.02F,
+                        color, 1F + this.world.rand.nextFloat() * 2F,
+                        this.world.rand.nextInt(100) + 100, 0, true, true);
+            }
+        }
+    }
+
+    @Override
+    public void writeNBT(NBTTagCompound compound, SaveType type) {
+        super.writeNBT(compound, type);
+        if (type != SaveType.BLOCK)
+            compound.setLong("goal", this.goalTime);
+    }
+
+    @Override
+    public void readNBT(NBTTagCompound compound, SaveType type) {
+        super.readNBT(compound, type);
+        if (type != SaveType.BLOCK)
+            this.goalTime = compound.getLong("goal");
+    }
+}

src/main/java/de/ellpeck/naturesaura/items/ModItems.java

@@ -45,4 +45,5 @@ public final class ModItems {
     public static final Item BIRTH_SPIRIT = new ItemBirthSpirit();
     public static final Item MOVER_MINECART = new ItemMoverMinecart();
     public static final Item RANGE_VISUALIZER = new ItemRangeVisualizer();
+    public static final Item CLOCK_HAND = new ItemImpl("clock_hand");
 }