From 05c78126859231a68e199dc34613689bd0978e2f Mon Sep 17 00:00:00 2001
From: Foghrye4 <foghrye4@gmail.com>
Date: Mon, 11 Apr 2016 19:44:54 +0300
Subject: Initial commit

---
 ihl/model/IHLBlockRenderer.java | 75 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 ihl/model/IHLBlockRenderer.java

(limited to 'ihl/model/IHLBlockRenderer.java')

diff --git a/ihl/model/IHLBlockRenderer.java b/ihl/model/IHLBlockRenderer.java
new file mode 100644
index 0000000..35c6e6c
--- /dev/null
+++ b/ihl/model/IHLBlockRenderer.java
@@ -0,0 +1,75 @@
+package ihl.model;
+
+import ihl.handpump.BlockWithCoordinates;
+
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import net.minecraft.client.renderer.GLAllocation;
+import net.minecraft.client.renderer.RenderBlocks;
+import net.minecraft.client.renderer.Tessellator;
+import org.lwjgl.opengl.GL11;
+import net.minecraft.world.ChunkCache;
+import net.minecraft.world.World;
+
+public class IHLBlockRenderer {
+	
+	private RenderBlocks renderBlocks;
+    private final Map<BlockWithCoordinates, Integer> renderCache = new HashMap<BlockWithCoordinates, Integer>();
+	public static IHLBlockRenderer instance;
+    
+    public IHLBlockRenderer()
+    {
+    	renderBlocks=RenderBlocks.getInstance();
+    	instance=this;
+    }
+    
+    public void refreshDisplayLists(int diplayLists, List<BlockWithCoordinates> bwc, ChunkCache iBlockAccess) 
+    {
+        if (bwc==null || bwc.isEmpty())
+        {
+            return;
+        }
+       	renderBlocks.blockAccess=iBlockAccess;
+       	GL11.glNewList(diplayLists, 4864 /*GL_COMPILE*/);
+		Iterator<BlockWithCoordinates> bwci = bwc.iterator();
+		while(bwci.hasNext())
+		{
+			BlockWithCoordinates bwce = bwci.next();
+	       	renderBlock(bwce);
+		}
+       	GL11.glEndList();
+    }
+    
+    
+    public int getBlockDisplayLists(BlockWithCoordinates bwc, World world) {
+        if (bwc.block == null)
+        {
+            return -1;
+        }
+        if(renderCache.containsKey(bwc))
+        {
+        	return renderCache.get(bwc);
+        }
+        int diplayLists = GLAllocation.generateDisplayLists(1);
+        if(renderBlocks.blockAccess==null || !renderBlocks.blockAccess.equals(world))
+        {
+        	renderBlocks.blockAccess=world;
+        }
+       	GL11.glNewList(diplayLists, 4864 /*GL_COMPILE*/);
+       	renderBlock(bwc);
+       	GL11.glEndList();
+        renderCache.put(bwc, diplayLists);
+        return diplayLists;
+    }
+    
+    private void renderBlock(BlockWithCoordinates bwc)
+    {
+       	Tessellator tessellator = Tessellator.instance;
+       	tessellator.startDrawingQuads();
+       	renderBlocks.renderBlockByRenderType(bwc.block, bwc.x, bwc.y, bwc.z);
+       	tessellator.draw();
+    }
+}
-- 
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