redpower/src/main/java/com/eloraam/redpower/machine/RenderAccel.java

package com.eloraam.redpower.machine;

import com.eloraam.redpower.RedPowerMachine;
import com.eloraam.redpower.core.RenderContext;
import com.eloraam.redpower.core.RenderCustomBlock;
import com.eloraam.redpower.core.RenderModel;
import com.eloraam.redpower.core.TubeFlow;
import com.eloraam.redpower.core.TubeItem;
import com.eloraam.redpower.core.WorldCoord;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.block.Block;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.client.renderer.entity.RenderItem;
import net.minecraft.client.renderer.entity.RenderManager;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.ResourceLocation;
import net.minecraft.world.World;
import org.lwjgl.opengl.GL11;

@SideOnly(Side.CLIENT)
public class RenderAccel extends RenderCustomBlock {
    private RenderModel model = RenderModel.loadModel("rpmachine:models/accel.obj");
    private ResourceLocation modelRes
        = new ResourceLocation("rpmachine", "models/machine1.png");
    private RenderContext context = new RenderContext();
    private EntityItem item = new EntityItem((World) null);
    private int[] paintColors
        = new int[] { 16777215, 16744448, 16711935, 7110911, 16776960, 65280,
                      16737408, 5460819,  9671571,  65535,   8388863,  255,
                      5187328,  32768,    16711680, 2039583 };

    public RenderAccel(Block block) {
        super(block);
    }

    public void renderTileEntityAt(
        TileEntity tile, double x, double y, double z, float partialTicks
    ) {
        TileAccel accel = (TileAccel) tile;
        World world = accel.getWorldObj();
        GL11.glDisable(2896);
        Tessellator tess = Tessellator.instance;
        this.context.setDefaults();
        this.context.setPos(x, y, z);
        this.context.setOrientation(accel.Rotation, 0);
        this.context.readGlobalLights(world, accel.xCoord, accel.yCoord, accel.zCoord);
        if (accel.Charged) {
            this.context.setBrightness(15728880);
        } else {
            this.context.setBrightness(this.getMixedBrightness(accel));
        }

        this.context.bindTexture(this.modelRes);
        tess.startDrawingQuads();
        this.context.bindModelOffset(this.model, 0.5, 0.5, 0.5);
        this.context.renderModelGroup(0, 0);
        this.context.renderModelGroup(1, 1 + (accel.Charged ? 1 : 0));
        if (accel.Charged) {
            this.context.setBrightness(this.getMixedBrightness(accel));
        }

        accel.recache();
        if ((accel.conCache & 1) > 0) {
            this.context.renderModelGroup(2, 2);
        }

        if ((accel.conCache & 2) > 0) {
            this.context.renderModelGroup(2, 1);
        }

        if ((accel.conCache & 4) > 0) {
            this.context.renderModelGroup(3, 2);
        }

        if ((accel.conCache & 8) > 0) {
            this.context.renderModelGroup(3, 1);
        }

        tess.draw();
        this.item.worldObj = world;
        this.item.setPosition(
            (double) accel.xCoord + 0.5,
            (double) accel.yCoord + 0.5,
            (double) accel.zCoord + 0.5
        );
        RenderItem renderitem = (RenderItem
        ) RenderManager.instance.getEntityClassRenderObject(EntityItem.class);
        this.item.age = 0;
        this.item.hoverStart = 0.0F;
        WorldCoord offset = new WorldCoord(0, 0, 0);
        TubeFlow flow = accel.getTubeFlow();
        int lv = accel.getWorldObj().getLightBrightnessForSkyBlocks(
            accel.xCoord, accel.yCoord, accel.zCoord, 0
        );

        for (TubeItem item : flow.contents) {
            this.item.setEntityItemStack(item.item);
            offset.x = 0;
            offset.y = 0;
            offset.z = 0;
            offset.step(item.side);
            double d = (double) item.progress / 128.0 * 0.5;
            if (!item.scheduled) {
                d = 0.5 - d;
            }

            double yo = 0.0;
            if (Item.getIdFromItem(item.item.getItem()) >= 256) {
                yo += 0.1;
            }

            renderitem.doRender(
                this.item,
                x + 0.5 + (double) offset.x * d,
                y + 0.5 - (double) this.item.yOffset - yo + (double) offset.y * d,
                z + 0.5 + (double) offset.z * d,
                0.0F,
                0.0F
            );
            if (item.color > 0) {
                this.context.bindBlockTexture();
                tess.startDrawingQuads();
                this.context.useNormal = true;
                this.context.setDefaults();
                tess.setBrightness(lv);
                this.context.setPos(
                    x + (double) offset.x * d,
                    y + (double) offset.y * d,
                    z + (double) offset.z * d
                );
                this.context.setTintHex(this.paintColors[item.color - 1]);
                this.context.setIcon(RedPowerMachine.tubeItemOverlay);
                this.context.renderBox(63, 0.26F, 0.26F, 0.26F, 0.74F, 0.74F, 0.74F);
                tess.draw();
            }
        }

        GL11.glEnable(2896);
    }

    @Override
    public void renderItem(ItemRenderType type, ItemStack item, Object... data) {
        super.block.setBlockBoundsForItemRender();
        this.context.setDefaults();
        if (type == ItemRenderType.INVENTORY) {
            this.context.setPos(-0.5, -0.5, -0.5);
        } else {
            this.context.setPos(0.0, 0.0, 0.0);
        }

        this.context.setOrientation(2, 0);
        this.context.bindTexture(this.modelRes);
        Tessellator tess = Tessellator.instance;
        tess.startDrawingQuads();
        this.context.useNormal = true;
        this.context.bindModelOffset(this.model, 0.5, 0.5, 0.5);
        this.context.renderModelGroup(0, 0);
        this.context.renderModelGroup(1, 1);
        this.context.useNormal = false;
        tess.draw();
    }
}