add hanging vines below netherrack

src/main/java/mods/betterfoliage/client/render/impl/RenderBlockBetterNetherrack.java

@@ -0,0 +1,64 @@
+package mods.betterfoliage.client.render.impl;
+
+import mods.betterfoliage.BetterFoliage;
+import mods.betterfoliage.client.ShadersModIntegration;
+import mods.betterfoliage.client.render.IRenderBlockDecorator;
+import mods.betterfoliage.client.render.IconSet;
+import mods.betterfoliage.client.render.RenderBlockAOBase;
+import mods.betterfoliage.common.config.Config;
+import mods.betterfoliage.common.util.Double3;
+import net.minecraft.block.Block;
+import net.minecraft.client.renderer.RenderBlocks;
+import net.minecraft.client.renderer.Tessellator;
+import net.minecraft.init.Blocks;
+import net.minecraft.util.IIcon;
+import net.minecraft.world.IBlockAccess;
+import net.minecraftforge.client.event.TextureStitchEvent;
+import net.minecraftforge.common.util.ForgeDirection;
+import cpw.mods.fml.common.eventhandler.SubscribeEvent;
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+
+@SideOnly(Side.CLIENT)
+public class RenderBlockBetterNetherrack extends RenderBlockAOBase implements IRenderBlockDecorator {
+
+	public IconSet netherrackVineIcons = new IconSet("bettergrassandleaves", "better_netherrack_%d");
+	
+	public boolean isBlockAccepted(IBlockAccess blockAccess, int x, int y, int z, Block block, int original) {
+		if (!Config.netherrackEnabled) return false;
+		if (block != Blocks.netherrack) return false;
+		if (!blockAccess.isAirBlock(x, y - 1, z)) return false;
+		return true;
+	}
+	
+	public boolean renderWorldBlock(IBlockAccess world, int x, int y, int z, Block block, int modelId, RenderBlocks renderer) {
+		blockAccess = world;
+		renderWorldBlockBase(1, world, x, y, z, block, modelId, renderer);
+		
+		int iconVariation = getSemiRandomFromPos(x, y, z, 0);
+		IIcon renderIcon = netherrackVineIcons.get(iconVariation);
+		
+		if (renderIcon == null) return true;
+		
+		int heightVariation = getSemiRandomFromPos(x, y, z, 1);
+		double scale = Config.netherrackSize * 0.5;
+		double halfHeight = 0.5 * (Config.netherrackHeightMin + pRand[heightVariation] * (Config.netherrackHeightMax - Config.netherrackHeightMin));
+		
+		// render netherrack vines
+		ShadersModIntegration.startGrassQuads();
+		Tessellator.instance.setBrightness(getBrightness(block, x, y - 1, z));
+		Tessellator.instance.setColorOpaque_I(block.colorMultiplier(blockAccess, x, y, z));
+		renderCrossedSideQuads(new Double3(x + 0.5, y, z + 0.5), ForgeDirection.DOWN, scale, halfHeight, pRot[iconVariation], Config.netherrackHOffset, renderIcon, 2, false);
+		
+		return true;
+	}
+
+	@SubscribeEvent
+	public void handleTextureReload(TextureStitchEvent.Pre event) {
+		if (event.map.getTextureType() != 0) return;
+		
+		netherrackVineIcons.registerIcons(event.map);
+		BetterFoliage.log.info(String.format("Found %d netherrack vine textures", netherrackVineIcons.numLoaded));
+	}
+
+}