117 lines
4.2 KiB
Java
117 lines
4.2 KiB
Java
/*
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* This file is part of ComputerCraft - http://www.computercraft.info
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* Copyright Daniel Ratcliffe, 2011-2019. Do not distribute without permission.
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* Send enquiries to dratcliffe@gmail.com
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*/
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package dan200.computercraft.client.render;
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import dan200.computercraft.ComputerCraft;
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import dan200.computercraft.shared.media.items.ItemPrintout;
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import net.minecraft.client.renderer.GlStateManager;
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import net.minecraft.item.ItemStack;
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import net.minecraftforge.api.distmarker.Dist;
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import net.minecraftforge.client.event.RenderItemInFrameEvent;
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import net.minecraftforge.client.event.RenderSpecificHandEvent;
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import net.minecraftforge.eventbus.api.SubscribeEvent;
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import net.minecraftforge.fml.common.Mod;
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import static dan200.computercraft.client.gui.FixedWidthFontRenderer.FONT_HEIGHT;
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import static dan200.computercraft.client.gui.FixedWidthFontRenderer.FONT_WIDTH;
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import static dan200.computercraft.client.render.PrintoutRenderer.*;
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import static dan200.computercraft.shared.media.items.ItemPrintout.LINES_PER_PAGE;
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import static dan200.computercraft.shared.media.items.ItemPrintout.LINE_MAX_LENGTH;
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/**
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* Emulates map and item-frame rendering for printouts
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*/
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@Mod.EventBusSubscriber( modid = ComputerCraft.MOD_ID, value = Dist.CLIENT )
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public final class ItemPrintoutRenderer extends ItemMapLikeRenderer
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{
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private static final ItemPrintoutRenderer INSTANCE = new ItemPrintoutRenderer();
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private ItemPrintoutRenderer()
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{
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}
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@SubscribeEvent
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public static void onRenderInHand( RenderSpecificHandEvent event )
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{
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ItemStack stack = event.getItemStack();
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if( !(stack.getItem() instanceof ItemPrintout) ) return;
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event.setCanceled( true );
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INSTANCE.renderItemFirstPerson( event.getHand(), event.getInterpolatedPitch(), event.getEquipProgress(), event.getSwingProgress(), event.getItemStack() );
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}
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@Override
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protected void renderItem( ItemStack stack )
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{
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// Setup various transformations. Note that these are partially adapated from the corresponding method
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// in FirstPersonRenderer.renderFirstPersonMap
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GlStateManager.disableLighting();
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GlStateManager.rotatef( 180f, 0f, 1f, 0f );
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GlStateManager.rotatef( 180f, 0f, 0f, 1f );
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GlStateManager.scalef( 0.42f, 0.42f, -0.42f );
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GlStateManager.translatef( -0.5f, -0.48f, 0.0f );
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drawPrintout( stack );
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GlStateManager.enableLighting();
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}
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@SubscribeEvent
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public static void onRenderInFrame( RenderItemInFrameEvent event )
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{
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ItemStack stack = event.getItem();
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if( !(stack.getItem() instanceof ItemPrintout) ) return;
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event.setCanceled( true );
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GlStateManager.disableLighting();
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// Move a little bit forward to ensure we're not clipping with the frame
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GlStateManager.translatef( 0.0f, 0.0f, -0.001f );
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GlStateManager.rotatef( 180f, 0f, 0f, 1f );
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GlStateManager.scalef( 0.95f, 0.95f, -0.95f );
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GlStateManager.translatef( -0.5f, -0.5f, 0.0f );
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drawPrintout( stack );
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GlStateManager.enableLighting();
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GlStateManager.disableBlend();
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}
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private static void drawPrintout( ItemStack stack )
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{
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int pages = ItemPrintout.getPageCount( stack );
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boolean book = ((ItemPrintout) stack.getItem()).getType() == ItemPrintout.Type.BOOK;
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double width = LINE_MAX_LENGTH * FONT_WIDTH + X_TEXT_MARGIN * 2;
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double height = LINES_PER_PAGE * FONT_HEIGHT + Y_TEXT_MARGIN * 2;
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// Non-books will be left aligned
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if( !book ) width += offsetAt( pages );
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double visualWidth = width, visualHeight = height;
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// Meanwhile books will be centred
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if( book )
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{
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visualWidth += 2 * COVER_SIZE + 2 * offsetAt( pages );
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visualHeight += 2 * COVER_SIZE;
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}
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double max = Math.max( visualHeight, visualWidth );
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// Scale the printout to fit correctly.
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double scale = 1.0 / max;
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GlStateManager.scaled( scale, scale, scale );
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GlStateManager.translated( (max - width) / 2.0, (max - height) / 2.0, 0.0 );
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drawBorder( 0, 0, -0.01, 0, pages, book );
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drawText( X_TEXT_MARGIN, Y_TEXT_MARGIN, 0, ItemPrintout.getText( stack ), ItemPrintout.getColours( stack ) );
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}
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}
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