90 lines
3.6 KiB
Java
90 lines
3.6 KiB
Java
/*
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* This file is part of ComputerCraft - http://www.computercraft.info
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* Copyright Daniel Ratcliffe, 2011-2020. 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 com.mojang.blaze3d.platform.GlStateManager;
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import dan200.computercraft.ComputerCraft;
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import dan200.computercraft.shared.peripheral.modem.wired.BlockCable;
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import dan200.computercraft.shared.peripheral.modem.wired.CableShapes;
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import dan200.computercraft.shared.util.WorldUtil;
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import net.minecraft.block.BlockState;
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import net.minecraft.client.Minecraft;
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import net.minecraft.client.renderer.ActiveRenderInfo;
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import net.minecraft.client.renderer.WorldRenderer;
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import net.minecraft.util.math.BlockPos;
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import net.minecraft.util.math.BlockRayTraceResult;
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import net.minecraft.util.math.RayTraceResult;
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import net.minecraft.util.math.Vec3d;
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import net.minecraft.util.math.shapes.VoxelShape;
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import net.minecraft.world.World;
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import net.minecraftforge.api.distmarker.Dist;
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import net.minecraftforge.client.event.DrawBlockHighlightEvent;
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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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@Mod.EventBusSubscriber( modid = ComputerCraft.MOD_ID, value = Dist.CLIENT )
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public final class CableHighlightRenderer
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{
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private CableHighlightRenderer()
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{
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}
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/**
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* Draw an outline for a specific part of a cable "Multipart".
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*
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* @param event The event to observe
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* @see WorldRenderer#drawSelectionBox(ActiveRenderInfo, RayTraceResult, int)
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*/
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@SubscribeEvent
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public static void drawHighlight( DrawBlockHighlightEvent event )
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{
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if( event.getTarget().getType() != RayTraceResult.Type.BLOCK ) return;
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BlockRayTraceResult hit = (BlockRayTraceResult) event.getTarget();
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BlockPos pos = hit.getPos();
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World world = event.getInfo().getRenderViewEntity().getEntityWorld();
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ActiveRenderInfo info = event.getInfo();
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BlockState state = world.getBlockState( pos );
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// We only care about instances with both cable and modem.
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if( state.getBlock() != ComputerCraft.Blocks.cable || state.get( BlockCable.MODEM ).getFacing() == null || !state.get( BlockCable.CABLE ) )
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{
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return;
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}
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event.setCanceled( true );
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Minecraft mc = Minecraft.getInstance();
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GlStateManager.enableBlend();
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GlStateManager.blendFuncSeparate( GlStateManager.SourceFactor.SRC_ALPHA, GlStateManager.DestFactor.ONE_MINUS_SRC_ALPHA, GlStateManager.SourceFactor.ONE, GlStateManager.DestFactor.ZERO );
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GlStateManager.lineWidth( Math.max( 2.5F, mc.mainWindow.getFramebufferWidth() / 1920.0F * 2.5F ) );
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GlStateManager.disableTexture();
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GlStateManager.depthMask( false );
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GlStateManager.matrixMode( GL11.GL_PROJECTION );
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GlStateManager.pushMatrix();
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GlStateManager.scalef( 1.0F, 1.0F, 0.999F );
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VoxelShape shape = WorldUtil.isVecInside( CableShapes.getModemShape( state ), hit.getHitVec().subtract( pos.getX(), pos.getY(), pos.getZ() ) )
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? CableShapes.getModemShape( state )
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: CableShapes.getCableShape( state );
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Vec3d cameraPos = info.getProjectedView();
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WorldRenderer.drawShape(
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shape, pos.getX() - cameraPos.getX(), pos.getY() - cameraPos.getY(), pos.getZ() - cameraPos.getZ(),
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0.0F, 0.0F, 0.0F, 0.4F
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);
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GlStateManager.popMatrix();
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GlStateManager.matrixMode( GL11.GL_MODELVIEW );
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GlStateManager.depthMask( true );
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GlStateManager.enableTexture();
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GlStateManager.disableBlend();
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}
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}
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