Package buildcraft.transport.render

Source Code of buildcraft.transport.render.FacadeItemRenderer

/**
* Copyright (c) 2011-2014, SpaceToad and the BuildCraft Team
* http://www.mod-buildcraft.com
*
* BuildCraft is distributed under the terms of the Minecraft Mod Public
* License 1.0, or MMPL. Please check the contents of the license located in
* http://www.mod-buildcraft.com/MMPL-1.0.txt
*/
package buildcraft.transport.render;

import org.lwjgl.opengl.GL11;

import net.minecraft.block.Block;
import net.minecraft.client.renderer.OpenGlHelper;
import net.minecraft.client.renderer.RenderBlocks;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.item.ItemStack;
import net.minecraft.util.IIcon;
import net.minecraftforge.client.IItemRenderer;
import buildcraft.BuildCraftTransport;
import buildcraft.api.facades.FacadeType;
import buildcraft.api.facades.IFacadeItem;
import buildcraft.core.CoreConstants;
import buildcraft.core.render.RenderUtils;
import buildcraft.transport.ItemFacade;
import buildcraft.transport.ItemFacade.FacadeState;
import buildcraft.transport.PipeIconProvider;

public class FacadeItemRenderer implements IItemRenderer {

  private long lastTime = 0L;

  private int renderState = 0;

  private void renderFacadeItem(RenderBlocks render, ItemStack item, float translateX, float translateY, float translateZ) {
    if (lastTime < System.currentTimeMillis()) {
      // 12 = LCM(1, 2, 3, 4)
      renderState = (renderState + 1) % 12;
      lastTime = System.currentTimeMillis() + 1000L;
    }

    FacadeType type = ((IFacadeItem) item.getItem()).getFacadeType(item);
    FacadeState[] states = ItemFacade.getFacadeStates(item);
    FacadeState activeState = null;
       
        if (states.length > 0) {
            // TODO: Figure out why NEI causes states[] to be of length 0
            if (type == FacadeType.Basic) {
                activeState = states[0];
            } else if (type == FacadeType.Phased) {
                activeState = states[renderState % states.length];
            }
        }
    Block block = activeState != null ? activeState.block : null;
    int decodedMeta = activeState != null ? activeState.metadata : 0;

    try {
      int color = item.getItem().getColorFromItemStack(new ItemStack(block, 1, decodedMeta), 0);
      RenderUtils.setGLColorFromInt(color);
    } catch (Throwable error) {
    }

    Tessellator tessellator = Tessellator.instance;

    if (tryGetBlockIcon(block, 0, decodedMeta) == null) {
      return;
    }

    // Render Facade
    GL11.glPushMatrix();

    // Enable glBlending for transparency
    if (block != null && block.getRenderBlockPass() > 0) {
      GL11.glAlphaFunc(GL11.GL_GREATER, 0.1F);
      GL11.glEnable(GL11.GL_BLEND);
      OpenGlHelper.glBlendFunc(770, 771, 1, 0);
    }

    render.setRenderBounds(0F, 0F, 1F - 1F / 16F, 1F, 1F, 1F);
    GL11.glTranslatef(translateX, translateY, translateZ);
    tessellator.startDrawingQuads();
    tessellator.setNormal(0.0F, -1F, 0.0F);
    render.renderFaceYNeg(block, 0.0D, 0.0D, 0.0D, tryGetBlockIcon(block, 0, decodedMeta));
    tessellator.draw();
    tessellator.startDrawingQuads();
    tessellator.setNormal(0.0F, 1.0F, 0.0F);
    render.renderFaceYPos(block, 0.0D, 0.0D, 0.0D, tryGetBlockIcon(block, 1, decodedMeta));
    tessellator.draw();
    tessellator.startDrawingQuads();
    tessellator.setNormal(0.0F, 0.0F, -1F);
    render.renderFaceZNeg(block, 0.0D, 0.0D, 0.0D, tryGetBlockIcon(block, 2, decodedMeta));
    tessellator.draw();
    tessellator.startDrawingQuads();
    tessellator.setNormal(0.0F, 0.0F, 1.0F);
    render.renderFaceZPos(block, 0.0D, 0.0D, 0.0D, tryGetBlockIcon(block, 3, decodedMeta));
    tessellator.draw();
    tessellator.startDrawingQuads();
    tessellator.setNormal(-1F, 0.0F, 0.0F);
    render.renderFaceXNeg(block, 0.0D, 0.0D, 0.0D, tryGetBlockIcon(block, 4, decodedMeta));
    tessellator.draw();
    tessellator.startDrawingQuads();
    tessellator.setNormal(1.0F, 0.0F, 0.0F);
    render.renderFaceXPos(block, 0.0D, 0.0D, 0.0D, tryGetBlockIcon(block, 5, decodedMeta));
    tessellator.draw();

    // Disable blending
    if (block != null && block.getRenderBlockPass() > 0) {
      GL11.glDisable(GL11.GL_BLEND);
    }

    GL11.glPopMatrix();

    // Render StructurePipe
    block = BuildCraftTransport.genericPipeBlock;
    IIcon textureID = BuildCraftTransport.instance.pipeIconProvider.getIcon(PipeIconProvider.TYPE.PipeStructureCobblestone.ordinal()); // Structure pipe

    block.setBlockBounds(CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MIN_POS, CoreConstants.PIPE_MAX_POS, CoreConstants.PIPE_MAX_POS, CoreConstants.PIPE_MAX_POS - 1F / 16F);
    block.setBlockBoundsForItemRender();
    render.setRenderBoundsFromBlock(block);
    GL11.glTranslatef(translateX, translateY, translateZ + 0.25F);

    tessellator.startDrawingQuads();
    tessellator.setNormal(0.0F, -0F, 0.0F);
    render.renderFaceYNeg(block, 0.0D, 0.0D, 0.0D, textureID);
    tessellator.draw();
    tessellator.startDrawingQuads();
    tessellator.setNormal(0.0F, 1.0F, 0.0F);
    render.renderFaceYPos(block, 0.0D, 0.0D, 0.0D, textureID);
    tessellator.draw();
    tessellator.startDrawingQuads();
    tessellator.setNormal(0.0F, 0.0F, -1F);
    render.renderFaceZNeg(block, 0.0D, 0.0D, 0.0D, textureID);
    tessellator.draw();
    tessellator.startDrawingQuads();
    tessellator.setNormal(0.0F, 0.0F, 1.0F);
    render.renderFaceZPos(block, 0.0D, 0.0D, 0.0D, textureID);
    tessellator.draw();
    tessellator.startDrawingQuads();
    tessellator.setNormal(-1F, 0.0F, 0.0F);
    render.renderFaceXNeg(block, 0.0D, 0.0D, 0.0D, textureID);
    tessellator.draw();
    tessellator.startDrawingQuads();
    tessellator.setNormal(1.0F, 0.0F, 0.0F);
    render.renderFaceXPos(block, 0.0D, 0.0D, 0.0D, textureID);
    tessellator.draw();
    GL11.glTranslatef(0.5F, 0.5F, 0.5F);
    block.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
  }

  private IIcon tryGetBlockIcon(Block block, int side, int decodedMeta) {
    IIcon icon = null;

    try {
      icon = block.getIcon(side, decodedMeta);
    } catch (Throwable t) {
      try {
        icon = block.getBlockTextureFromSide(side);
      } catch (Throwable ignored) {
      }
    } finally {
      if (icon == null) {
        icon = PipeIconProvider.TYPE.TransparentFacade.getIcon();
      }
    }

    return icon;
  }

  @Override
  public boolean handleRenderType(ItemStack item, ItemRenderType type) {
    switch (type) {
      case ENTITY:
        return true;
      case EQUIPPED:
        return true;
      case EQUIPPED_FIRST_PERSON:
        return true;
      case INVENTORY:
        return true;
      default:
        return false;
    }
  }

  @Override
  public boolean shouldUseRenderHelper(ItemRenderType type, ItemStack item, ItemRendererHelper helper) {
    return true;
  }

  @Override
  public void renderItem(ItemRenderType type, ItemStack item, Object... data) {

    switch (type) {
      case ENTITY:
        GL11.glScalef(0.50F, 0.50F, 0.50F);
        renderFacadeItem((RenderBlocks) data[0], item, -0.6F, 0f, -0.6F);
        break;
      case EQUIPPED:
      case EQUIPPED_FIRST_PERSON:
        renderFacadeItem((RenderBlocks) data[0], item, 0F, 0F, 0f);
        break;
      case INVENTORY:
        GL11.glScalef(1.1F, 1.1F, 1.1F);
        renderFacadeItem((RenderBlocks) data[0], item, -0.3f, -0.35f, -0.7f);
        break;
      default:
    }
  }
}
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