Basic network visualiser
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SquidDev
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package dan200.computercraft.client.render;
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import com.google.common.collect.Sets;
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import dan200.computercraft.ComputerCraft;
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import dan200.computercraft.api.network.wired.IWiredElement;
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import dan200.computercraft.shared.wired.WiredNetwork;
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import dan200.computercraft.shared.wired.WiredNode;
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import net.minecraft.client.Minecraft;
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import net.minecraft.client.gui.FontRenderer;
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import net.minecraft.client.renderer.BufferBuilder;
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import net.minecraft.client.renderer.GlStateManager;
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import net.minecraft.client.renderer.Tessellator;
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import net.minecraft.client.renderer.entity.RenderManager;
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import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
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import net.minecraft.init.Items;
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import net.minecraft.item.ItemStack;
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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.world.World;
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import net.minecraftforge.client.event.RenderWorldLastEvent;
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import net.minecraftforge.fml.common.FMLCommonHandler;
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import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
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import org.lwjgl.opengl.GL11;
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import java.awt.*;
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import java.util.Collection;
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import java.util.Set;
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/**
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* This is a helper to render a network when testing.
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*/
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public final class RenderOverlayNetwork
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{
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private int ticksInGame;
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private IWiredElement element;
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@SubscribeEvent
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public void onWorldRenderLast( RenderWorldLastEvent event )
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{
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++ticksInGame;
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RayTraceResult result = Minecraft.getMinecraft().objectMouseOver;
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if( result != null && result.typeOfHit == RayTraceResult.Type.BLOCK )
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{
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World clientWorld = Minecraft.getMinecraft().world;
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World world = FMLCommonHandler.instance().getMinecraftServerInstance().getWorld( clientWorld.provider.getDimension() );
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IWiredElement newElement = ComputerCraft.getWiredElementAt( world, result.getBlockPos(), result.sideHit );
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if( newElement != null ) element = newElement;
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}
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if( element == null ) return;
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Minecraft minecraft = Minecraft.getMinecraft();
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ItemStack stack = minecraft.player.getHeldItemMainhand();
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ItemStack otherStack = minecraft.player.getHeldItemOffhand();
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if( stack.getItem() != Items.STICK && otherStack.getItem() != Items.STICK ) return;
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GlStateManager.pushMatrix();
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RenderManager renderManager = minecraft.getRenderManager();
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GlStateManager.translate( -renderManager.viewerPosX, -renderManager.viewerPosY, -renderManager.viewerPosZ );
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GlStateManager.disableDepth();
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GlStateManager.disableTexture2D();
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GlStateManager.enableBlend();
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GlStateManager.blendFunc( GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA );
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Set<Pair<IWiredElement>> connections = Sets.newHashSet();
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WiredNetwork network = (WiredNetwork) element.getNode().getNetwork();
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for( WiredNode node : network.getNodes() )
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{
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for( WiredNode other : node.getNeighbours() )
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{
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connections.add( new Pair<>( node.getElement(), other.getElement() ) );
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}
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}
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renderNetworkConnections( connections, new Color( Color.HSBtoRGB( ticksInGame % 200 / 200F, 0.6F, 1F ) ), 1f );
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GlStateManager.enableDepth();
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GlStateManager.enableTexture2D();
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GlStateManager.disableBlend();
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GlStateManager.popMatrix();
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}
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private void renderNetworkConnections( Collection<Pair<IWiredElement>> data, Color color, float thickness )
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{
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renderConnections( data, color, 1.0f, thickness );
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renderConnections( data, color, 64.0f / 255.0f, thickness * 3 );
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}
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private void renderConnections( Collection<Pair<IWiredElement>> connections, Color color, float alpha, float thickness )
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{
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Tessellator tessellator = Tessellator.getInstance();
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BufferBuilder renderer = tessellator.getBuffer();
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GlStateManager.pushMatrix();
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GlStateManager.scale( 1, 1, 1 );
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GlStateManager.color( color.getRed() / 255.0f, color.getGreen() / 255.0f, color.getBlue() / 255.0f, alpha );
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GL11.glLineWidth( thickness );
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renderer.begin( GL11.GL_LINES, DefaultVertexFormats.POSITION );
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for( Pair<IWiredElement> connection : connections )
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{
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Vec3d a = connection.x.getPosition(), b = connection.y.getPosition();
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renderer.pos( a.x, a.y, a.z ).endVertex();
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renderer.pos( b.x, b.y, b.z ).endVertex();
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}
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tessellator.draw();
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GlStateManager.popMatrix();
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}
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private void renderLabel( double x, double y, double z, String label )
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{
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RenderManager renderManager = Minecraft.getMinecraft().getRenderManager();
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FontRenderer fontrenderer = renderManager.getFontRenderer();
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if( fontrenderer == null ) return;
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GlStateManager.pushMatrix();
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GlStateManager.disableLighting();
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float scale = 0.02666667f;
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GlStateManager.translate( x, y, z );
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GlStateManager.rotate( -renderManager.playerViewY, 0, 1, 0 );
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GlStateManager.rotate( renderManager.playerViewX, 1, 0, 0 );
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GlStateManager.scale( -scale, -scale, scale );
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// Render label background
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Tessellator tessellator = Tessellator.getInstance();
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BufferBuilder renderer = tessellator.getBuffer();
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int width = fontrenderer.getStringWidth( label );
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int xOffset = width / 2;
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GlStateManager.disableTexture2D();
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GlStateManager.color( 0, 0, 0, 65 / 225.0f );
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renderer.begin( GL11.GL_QUADS, DefaultVertexFormats.POSITION );
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renderer.pos( -xOffset - 1, -1, 0 ).endVertex();
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renderer.pos( -xOffset - 1, 8, 0 ).endVertex();
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renderer.pos( xOffset + 1, 8, 0 ).endVertex();
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renderer.pos( xOffset + 1, -1, 0 ).endVertex();
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tessellator.draw();
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GlStateManager.enableTexture2D();
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// Render label
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fontrenderer.drawString( label, -width / 2, 0, 0xFFFFFFFF );
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GlStateManager.enableLighting();
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GlStateManager.popMatrix();
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}
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private static class Pair<T>
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{
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public final T x;
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public final T y;
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public Pair( T right, T y )
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{
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this.x = right;
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this.y = y;
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}
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@Override
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public boolean equals( Object o )
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{
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if( this == o ) return true;
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if( o == null || getClass() != o.getClass() ) return false;
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Pair<?> p = (Pair<?>) o;
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return (x.equals( p.x ) && y.equals( p.y ))
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|| (x.equals( p.y ) && y.equals( p.x ));
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}
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@Override
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public int hashCode()
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{
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return x.hashCode() ^ y.hashCode();
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}
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}
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}
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