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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 cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.world.ChunkCache;
import net.minecraft.world.World;
@SideOnly(value=Side.CLIENT)
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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