/**
 *
 */
package se.Matryoshika.Saligia.API.Rendering;

import org.lwjgl.opengl.GL11;

import net.minecraft.block.Block;
import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.client.renderer.block.model.ItemCameraTransforms;
import net.minecraft.client.renderer.tileentity.TileEntitySpecialRenderer;
import net.minecraft.item.ItemStack;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;
import se.Matryoshika.Saligia.API.Rituals.RitualRegistry;
import se.Matryoshika.Saligia.Content.Tiles.TileRitual;

/**
 * This class was created by Matryoshika Oct 1, 2016
 * Property of Matryoshika.
 * Part of the Saligia mod.
 * May be viewed for educational purposes.
 */
@SideOnly(Side.CLIENT)
public class RenderMultiblock extends TileEntitySpecialRenderer<TileRitual> {




    @Override
    public void renderTileEntityAt(TileRitual te, double x, double y, double z, float partialTicks, int destroyStage) {

        super.renderTileEntityAt(te, x, y, z, partialTicks, destroyStage);

        //Get the multiblock in an array of Object arrays from the registry, which consists of x, y, z, Block
        Object[][] MULTIBLOCK = RitualRegistry.getMultiblock(te.renderMultiBlockKey);
        if(MULTIBLOCK == null)
            return;

        //If this tile isn't the one that was whacked with the Ritual Activator, return
        if(!te.isClicked)
            return;

        GlStateManager.pushAttrib();
        GlStateManager.pushMatrix();

        GlStateManager.translate(x, y, z);
        for(Object[] object : MULTIBLOCK){

            int dx = (Integer)object[0];
            int dy = (Integer)object[1];
            int dz = (Integer)object[2];
            Block block =  (Block)  object[3];

            GlStateManager.translate(0.5, 0.5, 0.5);
            GlStateManager.enableBlend();
            //Render missing blocks as ghost-blocks
            GL11.glBlendFunc(GL11.GL_ONE, GL11.GL_ONE_MINUS_SRC_COLOR);
            if(te.getWorld().isAirBlock(te.getPos().add(dx, dy, dz)))
                renderMultiblock(te, dx, dy, dz, block);
            //return to normal blend value
            GL11.glBlendFunc(GL11.GL_ONE_MINUS_SRC_COLOR, GL11.GL_ONE);

            GlStateManager.disableBlend();
            GlStateManager.translate(-0.5, -0.5, -0.5);

        }


        GlStateManager.popMatrix();
        GlStateManager.popAttrib();

    }

    private void renderMultiblock(TileRitual te, int dx, int dy, int dz, Block block){

        GlStateManager.pushMatrix();
        //Spin me right round
        long angle = (System.currentTimeMillis() / 40) % 360;

        //offset the rendered block from the Tile, using the Multiblock's registered x, y & z
        GlStateManager.translate(dx, dy, dz);

        GlStateManager.scale(0.5, 0.5, 0.5);
        GlStateManager.rotate(angle, 0, 1, 0);

        //Render the block in the world
        Minecraft.getMinecraft().getRenderItem().renderItem(new ItemStack(block), ItemCameraTransforms.TransformType.NONE);

        //Un-rotate the rotation
        GlStateManager.rotate(-angle, 0, 1, 0);
        GlStateManager.scale(2, 2, 2);

        GlStateManager.translate(-dx, -dy, -dz);
        GlStateManager.popMatrix();

    }

}