172 lines
7.6 KiB
Java
172 lines
7.6 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.client.FrameInfo;
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import dan200.computercraft.client.gui.FixedWidthFontRenderer;
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import dan200.computercraft.core.terminal.Terminal;
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import dan200.computercraft.core.terminal.TextBuffer;
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import dan200.computercraft.shared.computer.core.ClientComputer;
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import dan200.computercraft.shared.pocket.items.ItemPocketComputer;
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import dan200.computercraft.shared.util.Palette;
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import net.minecraft.client.Minecraft;
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import net.minecraft.client.renderer.GlStateManager;
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import net.minecraft.client.renderer.ItemRenderer;
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import net.minecraft.client.renderer.model.IBakedModel;
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import net.minecraft.client.renderer.model.ItemCameraTransforms.TransformType;
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import net.minecraft.client.renderer.texture.TextureManager;
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import net.minecraft.client.renderer.texture.TextureMap;
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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.ForgeHooksClient;
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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 org.lwjgl.opengl.GL11;
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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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/**
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* Emulates map rendering for pocket computers
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*/
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@Mod.EventBusSubscriber( modid = ComputerCraft.MOD_ID, value = Dist.CLIENT )
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public final class ItemPocketRenderer extends ItemMapLikeRenderer
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{
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private static final ItemPocketRenderer INSTANCE = new ItemPocketRenderer();
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private ItemPocketRenderer()
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{
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}
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@SubscribeEvent
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public static void renderItem( RenderSpecificHandEvent event )
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{
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ItemStack stack = event.getItemStack();
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if( !(stack.getItem() instanceof ItemPocketComputer) ) 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 adapted from the corresponding method
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// in ItemRenderer
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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( 0.5f, 0.5f, 0.5f );
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ClientComputer computer = ItemPocketComputer.createClientComputer( stack );
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{
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// First render the background item. We use the item's model rather than a direct texture as this ensures
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// we display the pocket light and other such decorations.
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GlStateManager.pushMatrix();
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GlStateManager.scalef( 1.0f, -1.0f, 1.0f );
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Minecraft minecraft = Minecraft.getInstance();
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TextureManager textureManager = minecraft.getTextureManager();
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ItemRenderer renderItem = minecraft.getItemRenderer();
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// Copy of RenderItem#renderItemModelIntoGUI but without the translation or scaling
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textureManager.bindTexture( TextureMap.LOCATION_BLOCKS_TEXTURE );
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textureManager.getTexture( TextureMap.LOCATION_BLOCKS_TEXTURE ).setBlurMipmap( false, false );
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GlStateManager.enableRescaleNormal();
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GlStateManager.enableAlphaTest();
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GlStateManager.alphaFunc( GL11.GL_GREATER, 0.1F );
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GlStateManager.enableBlend();
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GlStateManager.blendFunc( GlStateManager.SourceFactor.SRC_ALPHA, GlStateManager.DestFactor.ONE_MINUS_SRC_ALPHA );
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GlStateManager.color4f( 1.0F, 1.0F, 1.0F, 1.0F );
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IBakedModel baked = renderItem.getItemModelWithOverrides( stack, null, null );
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baked = ForgeHooksClient.handleCameraTransforms( baked, TransformType.GUI, false );
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renderItem.renderItem( stack, baked );
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GlStateManager.disableAlphaTest();
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GlStateManager.disableRescaleNormal();
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GlStateManager.popMatrix();
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}
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// If we've a computer and terminal then attempt to render it.
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if( computer != null )
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{
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Terminal terminal = computer.getTerminal();
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if( terminal != null )
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{
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synchronized( terminal )
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{
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GlStateManager.pushMatrix();
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GlStateManager.disableDepthTest();
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// Reset the position to be at the top left corner of the pocket computer
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// Note we translate towards the screen slightly too.
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GlStateManager.translated( -8 / 16.0, -8 / 16.0, 0.5 / 16.0 );
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// Translate to the top left of the screen.
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GlStateManager.translated( 4 / 16.0, 3 / 16.0, 0 );
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// Work out the scaling required to resize the terminal in order to fit on the computer
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final int margin = 2;
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int tw = terminal.getWidth();
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int th = terminal.getHeight();
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int width = tw * FONT_WIDTH + margin * 2;
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int height = th * FONT_HEIGHT + margin * 2;
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int max = Math.max( height, width );
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// The grid is 8 * 8 wide, so we start with a base of 1/2 (8 / 16).
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double scale = 1.0 / 2.0 / max;
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GlStateManager.scaled( scale, scale, scale );
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// The margin/start positions are determined in order for the terminal to be centred.
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int startX = (max - width) / 2 + margin;
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int startY = (max - height) / 2 + margin;
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FixedWidthFontRenderer fontRenderer = FixedWidthFontRenderer.instance();
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boolean greyscale = !computer.isColour();
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Palette palette = terminal.getPalette();
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// Render the actual text
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for( int line = 0; line < th; line++ )
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{
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TextBuffer text = terminal.getLine( line );
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TextBuffer colour = terminal.getTextColourLine( line );
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TextBuffer backgroundColour = terminal.getBackgroundColourLine( line );
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fontRenderer.drawString(
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text, startX, startY + line * FONT_HEIGHT,
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colour, backgroundColour, margin, margin, greyscale, palette
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);
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}
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// And render the cursor;
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int tx = terminal.getCursorX(), ty = terminal.getCursorY();
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if( terminal.getCursorBlink() && FrameInfo.getGlobalCursorBlink() &&
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tx >= 0 && ty >= 0 && tx < tw && ty < th )
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{
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TextBuffer cursorColour = new TextBuffer( "0123456789abcdef".charAt( terminal.getTextColour() ), 1 );
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fontRenderer.drawString(
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new TextBuffer( '_', 1 ), startX + FONT_WIDTH * tx, startY + FONT_HEIGHT * ty,
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cursorColour, null, 0, 0, greyscale, palette
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);
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}
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GlStateManager.enableDepthTest();
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GlStateManager.popMatrix();
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}
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}
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}
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GlStateManager.enableLighting();
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}
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}
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