snow creator, part 1

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

@@ -0,0 +1,34 @@
+package de.ellpeck.naturesaura.blocks;
+
+import de.ellpeck.naturesaura.api.render.IVisualizable;
+import de.ellpeck.naturesaura.blocks.tiles.TileEntitySnowCreator;
+import net.minecraft.block.Blocks;
+import net.minecraft.tileentity.TileEntity;
+import net.minecraft.util.math.AxisAlignedBB;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.World;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
+
+public class BlockSnowCreator extends BlockContainerImpl implements IVisualizable {
+    public BlockSnowCreator() {
+        super("snow_creator", TileEntitySnowCreator::new, ModBlocks.prop(Blocks.CRAFTING_TABLE));
+    }
+
+    @Override
+    @OnlyIn(Dist.CLIENT)
+    public AxisAlignedBB getVisualizationBounds(World world, BlockPos pos) {
+        TileEntity tile = world.getTileEntity(pos);
+        if (tile instanceof TileEntitySnowCreator) {
+            int radius = ((TileEntitySnowCreator) tile).getRange();
+            if (radius > 0)
+                return new AxisAlignedBB(pos).grow(radius);
+        }
+        return null;
+    }
+
+    @Override
+    public int getVisualizationColor(World world, BlockPos pos) {
+        return 0xdbe9ff;
+    }
+}

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

@@ -60,6 +60,7 @@ public final class ModBlocks {
     public static Block BLAST_FURNACE_BOOSTER;
     public static Block NETHER_WART_MUSHROOM;
     public static Block ANIMAL_CONTAINER;
+    public static Block SNOW_CREATOR;
 
     public static Block.Properties prop(Material material, MaterialColor color) {
         return Block.Properties.create(material, color);

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

@@ -34,4 +34,5 @@ public final class ModTileEntities {
     public static TileEntityType<TileEntityWoodStand> WOOD_STAND;
     public static TileEntityType<TileEntityBlastFurnaceBooster> BLAST_FURNACE_BOOSTER;
     public static TileEntityType<TileEntityAnimalContainer> ANIMAL_CONTAINER;
+    public static TileEntityType<TileEntitySnowCreator> SNOW_CREATOR;
 }

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

@@ -0,0 +1,69 @@
+package de.ellpeck.naturesaura.blocks.tiles;
+
+import de.ellpeck.naturesaura.api.NaturesAuraAPI;
+import de.ellpeck.naturesaura.api.aura.chunk.IAuraChunk;
+import net.minecraft.block.Blocks;
+import net.minecraft.fluid.Fluid;
+import net.minecraft.fluid.Fluids;
+import net.minecraft.tileentity.ITickableTileEntity;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.MathHelper;
+import net.minecraft.world.gen.Heightmap;
+
+public class TileEntitySnowCreator extends TileEntityImpl implements ITickableTileEntity {
+    public TileEntitySnowCreator() {
+        super(ModTileEntities.SNOW_CREATOR);
+    }
+
+    public int getRange() {
+        return this.redstonePower * 2;
+    }
+
+    @Override
+    public void onRedstonePowerChange(int newPower) {
+        super.onRedstonePowerChange(newPower);
+        this.sendToClients();
+    }
+
+    @Override
+    public void tick() {
+        int range = this.getRange();
+        if (range <= 0)
+            return;
+
+        if (!this.world.isRemote) {
+            if (this.world.getGameTime() % 10 != 0)
+                return;
+
+            BlockPos pos = this.pos.add(MathHelper.nextInt(this.world.rand, -range, range), 0, MathHelper.nextInt(this.world.rand, -range, range));
+            pos = this.world.getHeight(Heightmap.Type.MOTION_BLOCKING, pos);
+            BlockPos down = pos.down();
+
+            Fluid fluid = this.world.getFluidState(down).getFluid();
+            if (fluid == Fluids.WATER) {
+                this.world.setBlockState(down, Blocks.ICE.getDefaultState());
+            } else if (Blocks.SNOW.getDefaultState().isValidPosition(this.world, pos)) {
+                this.world.setBlockState(pos, Blocks.SNOW.getDefaultState());
+            } else {
+                return;
+            }
+
+            BlockPos auraPos = IAuraChunk.getHighestSpot(this.world, this.pos, 30, this.pos);
+            IAuraChunk.getAuraChunk(this.world, auraPos).drainAura(auraPos, 300);
+        } else {
+            if (this.world.getGameTime() % 30 != 0)
+                return;
+            for (int i = range * 5; i >= 0; i--) {
+                BlockPos randomPos = this.pos.add(
+                        MathHelper.nextInt(this.world.rand, -range, range),
+                        MathHelper.nextInt(this.world.rand, range / 2, range),
+                        MathHelper.nextInt(this.world.rand, -range, range));
+                NaturesAuraAPI.instance().spawnMagicParticle(
+                        randomPos.getX() + this.world.rand.nextFloat(), randomPos.getY() + 1, randomPos.getZ() + this.world.rand.nextFloat(),
+                        this.world.rand.nextGaussian() * 0.05, 0, this.world.rand.nextGaussian() * 0.05,
+                        0xdbe9ff, 1 + this.world.rand.nextFloat() * 1.5F, 10 * range, 0.05F + this.world.rand.nextFloat() * 0.05F, true, true
+                );
+            }
+        }
+    }
+}

src/main/java/de/ellpeck/naturesaura/particles/ParticleMagic.java

@@ -56,6 +56,10 @@ public class ParticleMagic extends Particle {
         } else {
             this.motionY -= 0.04D * (double) this.particleGravity;
             this.move(this.motionX, this.motionY, this.motionZ);
+            if (Math.abs(this.posY - this.prevPosY) <= 0.01F) {
+                this.motionX *= 0.7F;
+                this.motionZ *= 0.7F;
+            }
 
             float lifeRatio = (float) this.age / (float) this.maxAge;
             if (this.fade && lifeRatio > 0.75F)

src/main/java/de/ellpeck/naturesaura/reg/ModRegistry.java

@@ -108,7 +108,8 @@ public final class ModRegistry {
                 new BlockDimensionRail("end", DimensionType.THE_END, DimensionType.OVERWORLD),
                 new BlockBlastFurnaceBooster(),
                 new BlockImpl("nether_wart_mushroom", ModBlocks.prop(Blocks.RED_MUSHROOM_BLOCK)),
-                new BlockAnimalContainer()
+                new BlockAnimalContainer(),
+                new BlockSnowCreator()
         );
 
         if (ModConfig.instance.rfConverter.get())