Java tutorial
package com.pahimar.ee3.client.renderer.tileentity; import net.minecraft.client.renderer.entity.RenderItem; import net.minecraft.client.renderer.entity.RenderManager; import net.minecraft.client.renderer.tileentity.TileEntitySpecialRenderer; import net.minecraft.entity.item.EntityItem; import net.minecraft.item.ItemBlock; import net.minecraft.item.ItemStack; import net.minecraft.tileentity.TileEntity; import net.minecraftforge.common.ForgeDirection; import org.lwjgl.opengl.GL11; import com.pahimar.ee3.client.model.ModelGlassBell; import com.pahimar.ee3.lib.Textures; import com.pahimar.ee3.tileentity.TileGlassBell; import cpw.mods.fml.client.FMLClientHandler; import cpw.mods.fml.relauncher.Side; import cpw.mods.fml.relauncher.SideOnly; /** * Equivalent-Exchange-3 * * TileEntityGlassBellRenderer * * @author pahimar * @license Lesser GNU Public License v3 (http://www.gnu.org/licenses/lgpl.html) * */ @SideOnly(Side.CLIENT) public class TileEntityGlassBellRenderer extends TileEntitySpecialRenderer { private ModelGlassBell modelGlassBell = new ModelGlassBell(); private final RenderItem customRenderItem; public TileEntityGlassBellRenderer() { customRenderItem = new RenderItem() { @Override public boolean shouldBob() { return false; }; }; customRenderItem.setRenderManager(RenderManager.instance); } @Override public void renderTileEntityAt(TileEntity tileEntity, double x, double y, double z, float tick) { if (tileEntity instanceof TileGlassBell) { TileGlassBell tileGlassBell = (TileGlassBell) tileEntity; GL11.glDisable(GL11.GL_LIGHTING); GL11.glDisable(GL11.GL_CULL_FACE); /** * Render the Glass Bell */ GL11.glPushMatrix(); // Scale, Translate, Rotate renderGlassBellByOrientation(x, y, z, tileGlassBell.getOrientation()); // Bind texture FMLClientHandler.instance().getClient().renderEngine.bindTexture(Textures.MODEL_GLASS_BELL); modelGlassBell.render(); GL11.glPopMatrix(); /** * Render the ghost item inside of the Glass Bell, slowly spinning */ GL11.glPushMatrix(); if (tileGlassBell.getStackInSlot(TileGlassBell.DISPLAY_SLOT_INVENTORY_INDEX) != null) { float scaleFactor = getGhostItemScaleFactor( tileGlassBell.getStackInSlot(TileGlassBell.DISPLAY_SLOT_INVENTORY_INDEX)); float rotationAngle = (float) (720.0 * (System.currentTimeMillis() & 0x3FFFL) / 0x3FFFL); EntityItem ghostEntityItem = new EntityItem(tileGlassBell.worldObj); ghostEntityItem.hoverStart = 0.0F; ghostEntityItem.setEntityItemStack( tileGlassBell.getStackInSlot(TileGlassBell.DISPLAY_SLOT_INVENTORY_INDEX)); translateGhostItemByOrientation(ghostEntityItem.getEntityItem(), x, y, z, tileGlassBell.getOrientation()); GL11.glScalef(scaleFactor, scaleFactor, scaleFactor); GL11.glRotatef(rotationAngle, 0.0F, 1.0F, 0.0F); customRenderItem.doRenderItem(ghostEntityItem, 0, 0, 0, 0, 0); } GL11.glPopMatrix(); GL11.glEnable(GL11.GL_CULL_FACE); GL11.glEnable(GL11.GL_LIGHTING); } } private void renderGlassBellByOrientation(double x, double y, double z, ForgeDirection forgeDirection) { switch (forgeDirection) { case DOWN: { GL11.glScalef(1.0F, 1.0F, 1.0F); GL11.glTranslatef((float) x + 0.0F, (float) y + 2.0F, (float) z + 0.0F); GL11.glRotatef(90F, 1F, 0F, 0F); return; } case UP: { GL11.glScalef(1.0F, 1.0F, 1.0F); GL11.glTranslatef((float) x + 0.0F, (float) y + -1.0F, (float) z + 1.0F); GL11.glRotatef(-90F, 1F, 0F, 0F); return; } case NORTH: { GL11.glScalef(1.0F, 1.0F, 1.0F); GL11.glTranslatef((float) x + 1.0F, (float) y + 0.0F, (float) z + 2.0F); GL11.glRotatef(180F, 0F, 1F, 0F); return; } case SOUTH: { GL11.glScalef(1.0F, 1.0F, 1.0F); GL11.glTranslatef((float) x + 0.0F, (float) y + 0.0F, (float) z + -1.0F); return; } case EAST: { GL11.glScalef(1.0F, 1.0F, 1.0F); GL11.glTranslatef((float) x + -1.0F, (float) y + 1.0F, (float) z + 1.0F); GL11.glRotatef(-90F, 0F, 0F, 1F); GL11.glRotatef(-90F, 1F, 0F, 0F); return; } case WEST: { GL11.glScalef(1.0F, 1.0F, 1.0F); GL11.glTranslatef((float) x + 2.0F, (float) y + 0.0F, (float) z + 1.0F); GL11.glRotatef(90F, 0F, 0F, 1F); GL11.glRotatef(-90F, 1F, 0F, 0F); return; } case UNKNOWN: { return; } default: { return; } } } private void translateGhostItemByOrientation(ItemStack ghostItemStack, double x, double y, double z, ForgeDirection forgeDirection) { if (ghostItemStack != null) { if (ghostItemStack.getItem() instanceof ItemBlock) { switch (forgeDirection) { case DOWN: { GL11.glTranslatef((float) x + 0.5F, (float) y + 0.7F, (float) z + 0.5F); return; } case UP: { GL11.glTranslatef((float) x + 0.5F, (float) y + 0.25F, (float) z + 0.5F); return; } case NORTH: { GL11.glTranslatef((float) x + 0.5F, (float) y + 0.5F, (float) z + 0.7F); return; } case SOUTH: { GL11.glTranslatef((float) x + 0.5F, (float) y + 0.5F, (float) z + 0.3F); return; } case EAST: { GL11.glTranslatef((float) x + 0.3F, (float) y + 0.5F, (float) z + 0.5F); return; } case WEST: { GL11.glTranslatef((float) x + 0.70F, (float) y + 0.5F, (float) z + 0.5F); return; } case UNKNOWN: { return; } default: { return; } } } else { switch (forgeDirection) { case DOWN: { GL11.glTranslatef((float) x + 0.5F, (float) y + 0.6F, (float) z + 0.5F); return; } case UP: { GL11.glTranslatef((float) x + 0.5F, (float) y + 0.20F, (float) z + 0.5F); return; } case NORTH: { GL11.glTranslatef((float) x + 0.5F, (float) y + 0.4F, (float) z + 0.7F); return; } case SOUTH: { GL11.glTranslatef((float) x + 0.5F, (float) y + 0.4F, (float) z + 0.3F); return; } case EAST: { GL11.glTranslatef((float) x + 0.3F, (float) y + 0.4F, (float) z + 0.5F); return; } case WEST: { GL11.glTranslatef((float) x + 0.70F, (float) y + 0.4F, (float) z + 0.5F); return; } case UNKNOWN: { return; } default: { return; } } } } } private float getGhostItemScaleFactor(ItemStack itemStack) { float scaleFactor = 1.0F; if (itemStack != null) { if (itemStack.getItem() instanceof ItemBlock) { switch (customRenderItem.getMiniBlockCount(itemStack)) { case 1: return 0.90F; case 2: return 0.90F; case 3: return 0.90F; case 4: return 0.90F; case 5: return 0.80F; default: return 0.90F; } } else { switch (customRenderItem.getMiniItemCount(itemStack)) { case 1: return 0.65F; case 2: return 0.65F; case 3: return 0.65F; case 4: return 0.65F; default: return 0.65F; } } } return scaleFactor; } }