add connected grass

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

@@ -0,0 +1,50 @@
+package mods.betterfoliage.client.render.impl;
+
+import mods.betterfoliage.BetterFoliage;
+import mods.betterfoliage.client.BetterFoliageClient;
+import mods.betterfoliage.client.render.FakeRenderBlockAOBase;
+import mods.betterfoliage.client.render.IRenderBlockDecorator;
+import mods.betterfoliage.common.util.OffsetBlockAccess;
+import mods.betterfoliage.common.util.Utils;
+import net.minecraft.block.Block;
+import net.minecraft.client.renderer.RenderBlocks;
+import net.minecraft.world.IBlockAccess;
+import cpw.mods.fml.client.registry.ISimpleBlockRenderingHandler;
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+
+/** Accepts dirt blocks with grass on top if aggressive connected grass is enabled.<br/>
+ *  Renders the grass block in place of dirt.
+ * @author octarine-noise
+ */
+@SideOnly(Side.CLIENT)
+public class RenderBlocksBetterGrassSide extends FakeRenderBlockAOBase implements IRenderBlockDecorator {
+
+	@Override
+	public boolean isBlockAccepted(IBlockAccess blockAccess, int x, int y, int z, Block block, int original) {
+		return BetterFoliage.config.ctxGrassAggressiveEnabled && 
+			   BetterFoliageClient.dirt.matchesID(block) &&
+			   BetterFoliageClient.grass.matchesID(blockAccess.getBlock(x, y + 1, z));
+	}
+	
+	@Override
+	public boolean renderWorldBlock(IBlockAccess world, int x, int y, int z, Block block, int modelId, RenderBlocks renderer) {
+		// fake grass block @(0, +1, 0) at render location
+		IBlockAccess originalBA = renderer.blockAccess;
+		renderer.blockAccess = new OffsetBlockAccess(world, x, y, z, 0, 1, 0);
+		
+		Block renderBlock = renderer.blockAccess.getBlock(x, y, z);
+		boolean result;
+		ISimpleBlockRenderingHandler handler = Utils.getRenderingHandler(renderBlock.getRenderType());
+		if (handler != null) {
+			result = handler.renderWorldBlock(renderer.blockAccess, x, y, z, renderBlock, renderBlock.getRenderType(), renderer);
+		} else {
+			result = renderer.renderStandardBlock(renderBlock, x, y, z);
+		}
+		
+		// restore renderer to sanity
+		renderer.blockAccess = originalBA;
+		return result;
+	}
+
+}