/*
* This file is part of Applied Energistics 2.
* Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved.
*
* Applied Energistics 2 is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Applied Energistics 2 is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Applied Energistics 2. If not, see <http://www.gnu.org/licenses/lgpl>.
*/
package appeng.client.render.cablebus;
import java.util.Collection;
import java.util.Collections;
import java.util.EnumSet;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.annotation.Nullable;
import javax.vecmath.Vector3f;
import com.google.common.base.Function;
import net.minecraft.block.state.IBlockState;
import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.BlockRendererDispatcher;
import net.minecraft.client.renderer.block.model.BakedQuad;
import net.minecraft.client.renderer.block.model.IBakedModel;
import net.minecraft.client.renderer.texture.TextureAtlasSprite;
import net.minecraft.client.renderer.vertex.VertexFormat;
import net.minecraft.util.BlockRenderLayer;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.math.AxisAlignedBB;
import net.minecraftforge.client.ForgeHooksClient;
import net.minecraftforge.client.MinecraftForgeClient;
import appeng.api.AEApi;
import appeng.api.util.AEAxisAlignedBB;
import appeng.core.AELog;
import appeng.core.AppEng;
/**
* Handles creating the quads for facades attached to cable busses.
*/
public class FacadeBuilder
{
private static final ResourceLocation TEXTURE_FACADE = new ResourceLocation( AppEng.MOD_ID, "parts/cable_anchor" );
private final VertexFormat format;
private final TextureAtlasSprite facadeTexture;
private final BlockRendererDispatcher blockRendererDispatcher = Minecraft.getMinecraft().getBlockRendererDispatcher();
private static final Set<ResourceLocation> warnedFor = new HashSet<>();
FacadeBuilder( VertexFormat format, Function<ResourceLocation, TextureAtlasSprite> bakedTextureGetter )
{
this.format = format;
this.facadeTexture = bakedTextureGetter.apply( TEXTURE_FACADE );
}
static Collection<ResourceLocation> getTextures()
{
return Collections.singletonList( TEXTURE_FACADE );
}
void addFacades( BlockRenderLayer layer, Map<EnumFacing, FacadeRenderState> facadesState, List<AxisAlignedBB> partBoxes, Set<EnumFacing> sidesWithParts, long rand, List<BakedQuad> quads )
{
boolean thinFacades = isUseThinFacades( partBoxes );
CubeBuilder builder = new CubeBuilder( format, quads );
facadesState.forEach( ( side, state ) ->
{
AxisAlignedBB facadeBox = getFacadeBox( side, thinFacades );
AEAxisAlignedBB cutOutBox = getCutOutBox( facadeBox, partBoxes );
boolean renderStilt = !sidesWithParts.contains( side );
try
{
addFacade( layer, facadesState, side, cutOutBox, thinFacades, renderStilt, rand, builder );
}
catch( Throwable t )
{
AELog.debug( t );
}
} );
}
public static TextureAtlasAndTint getSprite( IBakedModel blockModel, IBlockState state, EnumFacing facing, long rand)
{
TextureAtlasAndTint firstFound = null;
BlockRenderLayer orgLayer = MinecraftForgeClient.getRenderLayer();
try
{
// Some other mods also distinguish between layers, so we're doing this in a loop from most likely to least likely
for( BlockRenderLayer layer : BlockRenderLayer.values() )
{
ForgeHooksClient.setRenderLayer( layer );
for( BakedQuad bakedQuad : blockModel.getQuads( state, facing, rand ) )
{
return new TextureAtlasAndTint( bakedQuad );
}
for( BakedQuad bakedQuad : blockModel.getQuads( state, null, rand ) )
{
if( firstFound == null )
{
firstFound = new TextureAtlasAndTint( bakedQuad );
}
if( bakedQuad.getFace() == facing )
{
return new TextureAtlasAndTint( bakedQuad );
}
}
}
}
catch( Exception e )
{
if( warnedFor.add( state.getBlock().getRegistryName() ) )
{
AELog.warn( "Unable to get facade sprite for blockstate %s. Supressing further warnings for this block.", state );
AELog.debug( e );
}
}
finally
{
ForgeHooksClient.setRenderLayer( orgLayer );
}
// Fall back to the particle texture, if we havent found anything else so far.
if( firstFound == null )
{
try
{
return new TextureAtlasAndTint( blockModel.getParticleTexture(), -1 );
}
catch( Exception e )
{
if( warnedFor.add( state.getBlock().getRegistryName() ) )
{
AELog.warn( "Unable to get facade sprite particle texture fallback for blockstate %s. Supressing further warnings for this block.", state );
AELog.debug( e );
}
}
}
return firstFound;
}
private void addFacade( BlockRenderLayer layer, Map<EnumFacing, FacadeRenderState> facades, EnumFacing side, AEAxisAlignedBB busBounds, boolean thinFacades, boolean renderStilt, long rand, CubeBuilder builder )
{
FacadeRenderState facadeState = facades.get( side );
IBlockState blockState = facadeState.getSourceBlock();
builder.setDrawFaces( EnumSet.allOf( EnumFacing.class ) );
// Reset to no color multiplicator
builder.setColorRGB( 0xFFFFFF );
// We only render the stilt if we don't intersect with any part directly, and if there's no part on our side
if( renderStilt && busBounds == null && layer == BlockRenderLayer.CUTOUT )
{
builder.setTexture( facadeTexture );
switch( side )
{
case DOWN:
builder.addCube( 7, 1, 7, 9, 6, 9 );
break;
case UP:
builder.addCube( 7, 10, 7, 9, 15, 9 );
break;
case NORTH:
builder.addCube( 7, 7, 1, 9, 9, 6 );
break;
case SOUTH:
builder.addCube( 7, 7, 10, 9, 9, 15 );
break;
case WEST:
builder.addCube( 1, 7, 7, 6, 9, 9 );
break;
case EAST:
builder.addCube( 10, 7, 7, 15, 9, 9 );
break;
}
}
// Do not add the translucent facade in any other layer than translucent
boolean translucent = AEApi.instance().partHelper().getCableRenderMode().transparentFacades;
if( translucent && layer != BlockRenderLayer.TRANSLUCENT )
{
return;
}
final float thickness = thinFacades ? 1 : 2;
IBakedModel blockModel = blockRendererDispatcher.getModelForState( blockState );
final int color;
if( translucent )
{
color = 0x4CFFFFFF;
}
else
{
color = 0xFFFFFFFF;
}
// TODO: Cache this
for( EnumFacing facing : facadeState.getOpenFaces() )
{
TextureAtlasAndTint spriteAndTint = getSprite( blockModel, blockState, facing, rand );
if( spriteAndTint != null && spriteAndTint.sprite != null )
{
// Use the tint color from the item stack here, which is based upon the assumption that the
// model used for the block will use the same meaning for tint indices as the item model does
if( spriteAndTint.tint != -1 )
{
int tintColor = facadeState.resolveTintColor( spriteAndTint.tint );
// Still apply the transparency color
tintColor &= 0xFFFFFF;
tintColor |= color & 0xFF000000;
builder.setColor( tintColor );
}
else
{
builder.setColor( color );
}
builder.setTexture( facing, spriteAndTint.sprite );
}
else
{
builder.setColor( color );
builder.setTexture( facing, facadeTexture );
}
}
builder.setDrawFaces( facadeState.getOpenFaces() );
AxisAlignedBB primaryBox = getFacadeBox( side, thinFacades );
Vector3f min = new Vector3f(
(float) primaryBox.minX * 16,
(float) primaryBox.minY * 16,
(float) primaryBox.minZ * 16
);
Vector3f max = new Vector3f(
(float) primaryBox.maxX * 16,
(float) primaryBox.maxY * 16,
(float) primaryBox.maxZ * 16
);
if( busBounds == null )
{
// Adjust the facade for neighboring facades so that facade cubes dont overlap with each other
if( side == EnumFacing.NORTH || side == EnumFacing.SOUTH )
{
if( facades.containsKey( EnumFacing.UP ) )
{
max.y -= thickness;
}
if( facades.containsKey( EnumFacing.DOWN ) )
{
min.y += thickness;
}
}
else if( side == EnumFacing.EAST || side == EnumFacing.WEST )
{
if( facades.containsKey( EnumFacing.UP ) )
{
max.y -= thickness;
}
if( facades.containsKey( EnumFacing.DOWN ) )
{
min.y += thickness;
}
if( facades.containsKey( EnumFacing.SOUTH ) )
{
max.z -= thickness;
}
if( facades.containsKey( EnumFacing.NORTH ) )
{
min.z += thickness;
}
}
builder.addCube( min.x, min.y, min.z, max.x, max.y, max.z );
}
else
{
Vector3f busMin = new Vector3f( (float) busBounds.minX * 16, (float) busBounds.minY * 16, (float) busBounds.minZ * 16 );
Vector3f busMax = new Vector3f( (float) busBounds.maxX * 16, (float) busBounds.maxY * 16, (float) busBounds.maxZ * 16 );
if( side == EnumFacing.UP || side == EnumFacing.DOWN )
{
this.renderSegmentBlockCurrentBounds( builder, min, max, 0.0f, 0.0f, busMax.z, 16.0f, 16.0f, 16.0f );
this.renderSegmentBlockCurrentBounds( builder, min, max, 0.0f, 0.0f, 0.0f, 16.0f, 16.0f, busMin.z );
this.renderSegmentBlockCurrentBounds( builder, min, max, 0.0f, 0.0f, busMin.z, busMin.x, 16.0f, busMax.z );
this.renderSegmentBlockCurrentBounds( builder, min, max, busMax.x, 0.0f, busMin.z, 16.0f, 16.0f, busMax.z );
}
else if( side == EnumFacing.NORTH || side == EnumFacing.SOUTH )
{
if( facades.get( EnumFacing.UP ) != null )
{
max.y -= thickness;
}
if( facades.get( EnumFacing.DOWN ) != null )
{
min.y += thickness;
}
this.renderSegmentBlockCurrentBounds( builder, min, max, busMax.x, 0.0f, 0.0f, 16.0f, 16.0f, 16.0f );
this.renderSegmentBlockCurrentBounds( builder, min, max, 0.0f, 0.0f, 0.0f, busMin.x, 16.0f, 16.0f );
this.renderSegmentBlockCurrentBounds( builder, min, max, busMin.x, 0.0f, 0.0f, busMax.x, busMin.y, 16.0f );
this.renderSegmentBlockCurrentBounds( builder, min, max, busMin.x, busMax.y, 0.0f, busMax.x, 16.0f, 16.0f );
}
else
{
if( facades.get( EnumFacing.UP ) != null )
{
max.y -= thickness;
}
if( facades.get( EnumFacing.DOWN ) != null )
{
min.y += thickness;
}
if( facades.get( EnumFacing.SOUTH ) != null )
{
max.z -= thickness;
}
if( facades.get( EnumFacing.NORTH ) != null )
{
min.z += thickness;
}
this.renderSegmentBlockCurrentBounds( builder, min, max, 0.0f, 0.0f, busMax.z, 16.0f, 16.0f, 16.0f );
this.renderSegmentBlockCurrentBounds( builder, min, max, 0.0f, 0.0f, 0.0f, 16.0f, 16.0f, busMin.z );
this.renderSegmentBlockCurrentBounds( builder, min, max, 0.0f, 0.0f, busMin.z, 16.0f, busMin.y, busMax.z );
this.renderSegmentBlockCurrentBounds( builder, min, max, 0.0f, busMax.y, busMin.z, 16.0f, 16.0f, busMax.z );
}
}
}
private void renderSegmentBlockCurrentBounds( CubeBuilder builder, Vector3f min, Vector3f max,
float minX, float minY, float minZ, float maxX, float maxY, float maxZ )
{
minX = Math.max( min.x, minX );
minY = Math.max( min.y, minY );
minZ = Math.max( min.z, minZ );
maxX = Math.min( max.x, maxX );
maxY = Math.min( max.y, maxY );
maxZ = Math.min( max.z, maxZ );
// don't draw it if its not at least a pixel wide...
if( maxX - minX >= 1.0 && maxY - minY >= 1.0 && maxZ - minZ >= 1.0 )
{
builder.addCube( minX, minY, minZ, maxX, maxY, maxZ );
}
}
/**
* Given the actual facade bounding box, and the bounding boxes of all parts, determine the biggest union of AABB that intersect with the
* facade's bounding box. This AABB will need to be "cut out" when the facade is rendered.
*/
@Nullable
private static AEAxisAlignedBB getCutOutBox( AxisAlignedBB facadeBox, List<AxisAlignedBB> partBoxes )
{
AEAxisAlignedBB b = null;
for( AxisAlignedBB bb : partBoxes )
{
if( bb.intersectsWith( facadeBox ) )
{
if( b == null )
{
b = AEAxisAlignedBB.fromBounds( bb );
}
else
{
b.maxX = Math.max( b.maxX, bb.maxX );
b.maxY = Math.max( b.maxY, bb.maxY );
b.maxZ = Math.max( b.maxZ, bb.maxZ );
b.minX = Math.min( b.minX, bb.minX );
b.minY = Math.min( b.minY, bb.minY );
b.minZ = Math.min( b.minZ, bb.minZ );
}
}
}
return b;
}
/**
* Determines if any of the part's bounding boxes intersects with the outside 2 voxel wide layer.
* If so, we should use thinner facades (1 voxel deep).
*/
private static boolean isUseThinFacades( List<AxisAlignedBB> partBoxes )
{
final double min = 2.0 / 16.0;
final double max = 14.0 / 16.0;
for( AxisAlignedBB bb : partBoxes )
{
int o = 0;
o += bb.maxX > max ? 1 : 0;
o += bb.maxY > max ? 1 : 0;
o += bb.maxZ > max ? 1 : 0;
o += bb.minX < min ? 1 : 0;
o += bb.minY < min ? 1 : 0;
o += bb.minZ < min ? 1 : 0;
if( o >= 2 )
{
return true;
}
}
return false;
}
private static AxisAlignedBB getFacadeBox( EnumFacing side, boolean thinFacades )
{
int thickness = thinFacades ? 1 : 2;
switch( side )
{
case DOWN:
return new AxisAlignedBB( 0.0, 0.0, 0.0, 1.0, ( thickness ) / 16.0, 1.0 );
case EAST:
return new AxisAlignedBB( ( 16.0 - thickness ) / 16.0, 0.0, 0.0, 1.0, 1.0, 1.0 );
case NORTH:
return new AxisAlignedBB( 0.0, 0.0, 0.0, 1.0, 1.0, ( thickness ) / 16.0 );
case SOUTH:
return new AxisAlignedBB( 0.0, 0.0, ( 16.0 - thickness ) / 16.0, 1.0, 1.0, 1.0 );
case UP:
return new AxisAlignedBB( 0.0, ( 16.0 - thickness ) / 16.0, 0.0, 1.0, 1.0, 1.0 );
case WEST:
return new AxisAlignedBB( 0.0, 0.0, 0.0, ( thickness ) / 16.0, 1.0, 1.0 );
default:
throw new IllegalArgumentException( "Unsupported face: " + side );
}
}
public static class TextureAtlasAndTint
{
private final TextureAtlasSprite sprite;
private final int tint;
private TextureAtlasAndTint( BakedQuad quad )
{
this.sprite = quad.getSprite();
this.tint = quad.getTintIndex();
}
private TextureAtlasAndTint( TextureAtlasSprite sprite, int tint )
{
this.sprite = sprite;
this.tint = tint;
}
public TextureAtlasSprite getSprite()
{
return sprite;
}
public int getTint()
{
return tint;
}
}
}