Connecting the Quads

- Added models and a block interface for connected textures
- Added Framed glass as an example block

src/main/java/com/simibubi/create/AllBlocks.java

@@ -61,6 +61,7 @@ import com.simibubi.create.modules.logistics.management.base.LogisticalControlle
 import com.simibubi.create.modules.logistics.management.index.LogisticalIndexBlock;
 import com.simibubi.create.modules.logistics.transport.villager.LogisticiansTableBlock;
 import com.simibubi.create.modules.logistics.transport.villager.PackageFunnelBlock;
+import com.simibubi.create.modules.palettes.CTGlassBlock;
 import com.simibubi.create.modules.palettes.GlassPaneBlock;
 import com.simibubi.create.modules.schematics.block.CreativeCrateBlock;
 import com.simibubi.create.modules.schematics.block.SchematicTableBlock;
@@ -173,6 +174,7 @@ public enum AllBlocks {
 	__PALETTES__(),
 	TILED_GLASS(new GlassBlock(Properties.from(Blocks.GLASS))),
 	TILED_GLASS_PANE(new GlassPaneBlock(Properties.from(Blocks.GLASS))),
+	FRAMED_GLASS(new CTGlassBlock(true)),
 
 	ANDESITE_BRICKS(new Block(Properties.from(Blocks.ANDESITE))),
 	DIORITE_BRICKS(new Block(Properties.from(Blocks.DIORITE))),

src/main/java/com/simibubi/create/CreateClient.java

@@ -3,6 +3,9 @@ package com.simibubi.create;
 import java.util.Map;
 import java.util.function.Function;
 
+import com.simibubi.create.foundation.block.CTModel;
+import com.simibubi.create.foundation.block.IHaveConnectedTextures;
+import com.simibubi.create.foundation.utility.Lang;
 import com.simibubi.create.modules.contraptions.CachedBufferReloader;
 import com.simibubi.create.modules.contraptions.WrenchModel;
 import com.simibubi.create.modules.contraptions.receivers.EncasedFanParticleHandler;
@@ -27,6 +30,7 @@ import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 import net.minecraftforge.client.event.ModelBakeEvent;
 import net.minecraftforge.client.event.ModelRegistryEvent;
+import net.minecraftforge.client.event.TextureStitchEvent;
 import net.minecraftforge.client.model.ModelLoader;
 import net.minecraftforge.eventbus.api.IEventBus;
 import net.minecraftforge.fml.DistExecutor;
@@ -50,6 +54,7 @@ public class CreateClient {
 			modEventBus.addListener(CreateClient::createConfigs);
 			modEventBus.addListener(CreateClient::onModelBake);
 			modEventBus.addListener(CreateClient::onModelRegistry);
+			modEventBus.addListener(CreateClient::onTextureStitch);
 		});
 	}
 
@@ -86,16 +91,33 @@ public class CreateClient {
 		schematicHologram.tick();
 	}
 
+	@OnlyIn(Dist.CLIENT)
+	public static void onTextureStitch(TextureStitchEvent.Pre event) {
+		if (!event.getMap().getBasePath().equals("textures"))
+			return;
+		for (AllBlocks allBlocks : AllBlocks.values()) {
+			if (!(allBlocks.get() instanceof IHaveConnectedTextures))
+				continue;
+			event.addSprite(new ResourceLocation(Create.ID, "block/connected/" + Lang.asId(allBlocks.name())));
+		}
+	}
+
 	@OnlyIn(Dist.CLIENT)
 	public static void onModelBake(ModelBakeEvent event) {
 		Map<ResourceLocation, IBakedModel> modelRegistry = event.getModelRegistry();
 
+		for (AllBlocks allBlocks : AllBlocks.values()) {
+			if (!(allBlocks.get() instanceof IHaveConnectedTextures))
+				continue;
+			swapModels(modelRegistry, getBlockModelLocation(allBlocks, ""),
+					t -> new CTModel(t, Lang.asId(allBlocks.name())));
+		}
+
 		swapModels(modelRegistry, getItemModelLocation(AllItems.SYMMETRY_WAND),
 				t -> new SymmetryWandModel(t).loadPartials(event));
 		swapModels(modelRegistry, getItemModelLocation(AllItems.PLACEMENT_HANDGUN),
 				t -> new BuilderGunModel(t).loadPartials(event));
-		swapModels(modelRegistry, getItemModelLocation(AllItems.WRENCH),
-				t -> new WrenchModel(t).loadPartials(event));
+		swapModels(modelRegistry, getItemModelLocation(AllItems.WRENCH), t -> new WrenchModel(t).loadPartials(event));
 		swapModels(modelRegistry, getItemModelLocation(AllItems.DEFORESTER),
 				t -> new DeforesterModel(t).loadPartials(event));
 		swapModels(modelRegistry,

src/main/java/com/simibubi/create/foundation/block/CTModel.java

@@ -0,0 +1,109 @@
+package com.simibubi.create.foundation.block;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Random;
+
+import com.simibubi.create.foundation.block.CTModelTextureHandler.TextureEntry;
+
+import net.minecraft.block.Block;
+import net.minecraft.block.BlockState;
+import net.minecraft.client.renderer.model.BakedQuad;
+import net.minecraft.client.renderer.model.IBakedModel;
+import net.minecraft.client.renderer.vertex.VertexFormat;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.IEnviromentBlockReader;
+import net.minecraftforge.client.model.BakedModelWrapper;
+import net.minecraftforge.client.model.data.EmptyModelData;
+import net.minecraftforge.client.model.data.IModelData;
+import net.minecraftforge.client.model.data.ModelDataMap;
+import net.minecraftforge.client.model.data.ModelProperty;
+
+public class CTModel extends BakedModelWrapper<IBakedModel> {
+
+	private static ModelProperty<CTData> CT_PROPERTY = new ModelProperty<>();
+	private TextureEntry texture;
+
+	private class CTData {
+		int[] textures;
+
+		public CTData() {
+			textures = new int[6];
+			Arrays.fill(textures, -1);
+		}
+
+		void put(Direction face, int texture) {
+			textures[face.getIndex()] = texture;
+		}
+
+		int get(Direction face) {
+			return textures[face.getIndex()];
+		}
+	}
+
+	public CTModel(IBakedModel originalModel, String blockId) {
+		super(originalModel);
+		texture = CTModelTextureHandler.get(blockId);
+	}
+
+	@Override
+	public IModelData getModelData(IEnviromentBlockReader world, BlockPos pos, BlockState state, IModelData tileData) {
+		if (!(state.getBlock() instanceof IHaveConnectedTextures))
+			return EmptyModelData.INSTANCE;
+		CTData data = new CTData();
+		IHaveConnectedTextures texDef = (IHaveConnectedTextures) state.getBlock();
+		for (Direction face : Direction.values()) {
+			if (!Block.shouldSideBeRendered(state, world, pos, face))
+				continue;
+			data.put(face, texDef.getTextureIndex(world, pos, state, face));
+		}
+		return new ModelDataMap.Builder().withInitial(CT_PROPERTY, data).build();
+	}
+
+	@Override
+	public List<BakedQuad> getQuads(BlockState state, Direction side, Random rand, IModelData extraData) {
+		List<BakedQuad> quads = new ArrayList<>(super.getQuads(state, side, rand, extraData));
+		if (!extraData.hasProperty(CT_PROPERTY))
+			return quads;
+		IHaveConnectedTextures texDef = (IHaveConnectedTextures) state.getBlock();
+		CTData data = extraData.getData(CT_PROPERTY);
+
+		for (int i = 0; i < quads.size(); i++) {
+			BakedQuad quad = quads.get(i);
+			if (!texDef.appliesTo(quad))
+				continue;
+			int index = data.get(quad.getFace());
+			if (index == -1)
+				return quads;
+
+			float textureSize = 16f / 128f / 8f;
+			float uShift = (index % 8) * textureSize;
+			float vShift = (index / 8) * textureSize * 2;
+
+			uShift = texture.connectedTextures.getInterpolatedU((index % 8) * 2) - texture.originalTexture.getMinU();
+			vShift = texture.connectedTextures.getInterpolatedV((index / 8) * 2) - texture.originalTexture.getMinV();
+
+			BakedQuad newQuad = new BakedQuad(Arrays.copyOf(quad.getVertexData(), quad.getVertexData().length),
+					quad.getTintIndex(), quad.getFace(), quad.getSprite(), quad.shouldApplyDiffuseLighting(),
+					quad.getFormat());
+			VertexFormat format = quad.getFormat();
+			int[] vertexData = newQuad.getVertexData();
+			for (int vertex = 0; vertex < vertexData.length; vertex += format.getIntegerSize()) {
+				int uvOffset = format.getUvOffsetById(0) / 4;
+				int uIndex = vertex + uvOffset;
+				int vIndex = vertex + uvOffset + 1;
+				float u = Float.intBitsToFloat(vertexData[uIndex]);
+				float v = Float.intBitsToFloat(vertexData[vIndex]);
+				u += uShift;
+				v += vShift;
+				vertexData[uIndex] = Float.floatToIntBits(u);
+				vertexData[vIndex] = Float.floatToIntBits(v);
+			}
+			quads.set(i, newQuad);
+		}
+		return quads;
+	}
+
+}

src/main/java/com/simibubi/create/foundation/block/CTModelTextureHandler.java

@@ -0,0 +1,46 @@
+package com.simibubi.create.foundation.block;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import com.simibubi.create.Create;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.renderer.texture.AtlasTexture;
+import net.minecraft.client.renderer.texture.TextureAtlasSprite;
+import net.minecraft.util.ResourceLocation;
+
+public class CTModelTextureHandler {
+
+	static class TextureEntry {
+		ResourceLocation originalTextureLocation;
+		ResourceLocation connectedTextureLocation;
+		TextureAtlasSprite originalTexture;
+		TextureAtlasSprite connectedTextures;
+
+		void loadTextures() {
+			AtlasTexture textureMap = Minecraft.getInstance().getTextureMap();
+			originalTexture = textureMap.getSprite(originalTextureLocation);
+			connectedTextures = textureMap.getSprite(connectedTextureLocation);
+		}
+	}
+
+	static Map<String, TextureEntry> textures = new HashMap<>();
+
+	public static TextureEntry get(String blockId) {
+		if (textures.containsKey(blockId))
+			return textures.get(blockId);
+
+		TextureEntry entry = new TextureEntry();
+		entry.originalTextureLocation = new ResourceLocation(Create.ID, "block/" + blockId);
+		entry.connectedTextureLocation = new ResourceLocation(Create.ID, "block/connected/" + blockId);
+		entry.loadTextures();
+		textures.put(blockId, entry);
+		return entry;
+	}
+
+	public static void reloadUVs() {
+		textures.values().forEach(TextureEntry::loadTextures);
+	}
+
+}

src/main/java/com/simibubi/create/foundation/block/IHaveConnectedTextures.java

@@ -0,0 +1,133 @@
+package com.simibubi.create.foundation.block;
+
+import java.util.function.BiPredicate;
+
+import net.minecraft.block.BlockState;
+import net.minecraft.client.renderer.model.BakedQuad;
+import net.minecraft.util.Direction;
+import net.minecraft.util.Direction.Axis;
+import net.minecraft.util.Direction.AxisDirection;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.IEnviromentBlockReader;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
+
+public interface IHaveConnectedTextures {
+
+	class CTContext {
+		boolean up, down, left, right;
+		boolean topLeft, topRight, bottomLeft, bottomRight;
+	}
+
+	@OnlyIn(Dist.CLIENT)
+	public boolean appliesTo(BakedQuad quad);
+
+	default boolean connectsTo(BlockState state, BlockState other, IEnviromentBlockReader reader, BlockPos pos,
+			BlockPos otherPos, Direction face) {
+
+		BlockPos blockingPos = otherPos.offset(face);
+		if ((face.getAxis().getCoordinate(pos.getX(), pos.getY(), pos.getZ()) == face.getAxis()
+				.getCoordinate(otherPos.getX(), otherPos.getY(), otherPos.getZ()))
+				&& connectsTo(state, reader.getBlockState(blockingPos), reader, pos, blockingPos, face))
+			return false;
+
+		return state.getBlock() == other.getBlock();
+	}
+
+	default int getTextureIndex(IEnviromentBlockReader reader, BlockPos pos, BlockState state, Direction face) {
+		return getTextureIndexForContext(reader, pos, state, face, buildContext(reader, pos, state, face));
+	}
+
+	default CTContext buildContext(IEnviromentBlockReader reader, BlockPos pos, BlockState state, Direction face) {
+		Axis axis = face.getAxis();
+		boolean positive = face.getAxisDirection() == AxisDirection.POSITIVE;
+		Direction h = axis == Axis.X ? Direction.SOUTH : Direction.WEST;
+		Direction v = axis.isHorizontal() ? Direction.UP : Direction.NORTH;
+		h = positive ? h.getOpposite() : h;
+		if (face == Direction.DOWN) {
+			v = v.getOpposite();
+			h = h.getOpposite();
+		}
+
+		final Direction horizontal = h;
+		final Direction vertical = v;
+
+		BiPredicate<Integer, Integer> connection = (x, y) -> {
+			BlockPos p = pos.offset(horizontal, x).offset(vertical, y);
+			return connectsTo(state, reader.getBlockState(p), reader, pos, p, face);
+		};
+
+		CTContext context = new CTContext();
+		context.up = connection.test(0, 1);
+		context.down = connection.test(0, -1);
+		context.left = connection.test(-1, 0);
+		context.right = connection.test(1, 0);
+		context.topLeft = connection.test(-1, 1);
+		context.topRight = connection.test(1, 1);
+		context.bottomLeft = connection.test(-1, -1);
+		context.bottomRight = connection.test(1, -1);
+		return context;
+	}
+
+	default int getTextureIndexForContext(IEnviromentBlockReader reader, BlockPos pos, BlockState state, Direction face,
+			CTContext c) {
+		int tileX = 0, tileY = 0;
+		int borders = (!c.up ? 1 : 0) + (!c.down ? 1 : 0) + (!c.left ? 1 : 0) + (!c.right ? 1 : 0);
+
+		if (c.up)
+			tileX++;
+		if (c.down)
+			tileX += 2;
+		if (c.left)
+			tileY++;
+		if (c.right)
+			tileY += 2;
+
+		if (borders == 0) {
+			if (c.topRight)
+				tileX++;
+			if (c.topLeft)
+				tileX += 2;
+			if (c.bottomRight)
+				tileY += 2;
+			if (c.bottomLeft)
+				tileY++;
+		}
+
+		if (borders == 1) {
+			if (!c.right) {
+				if (c.topLeft || c.bottomLeft) {
+					tileY = 4;
+					tileX = -1 + (c.bottomLeft ? 1 : 0) + (c.topLeft ? 1 : 0) * 2;
+				}
+			}
+			if (!c.left) {
+				if (c.topRight || c.bottomRight) {
+					tileY = 5;
+					tileX = -1 + (c.bottomRight ? 1 : 0) + (c.topRight ? 1 : 0) * 2;
+				}
+			}
+			if (!c.down) {
+				if (c.topLeft || c.topRight) {
+					tileY = 6;
+					tileX = -1 + (c.topLeft ? 1 : 0) + (c.topRight ? 1 : 0) * 2;
+				}
+			}
+			if (!c.up) {
+				if (c.bottomLeft || c.bottomRight) {
+					tileY = 7;
+					tileX = -1 + (c.bottomLeft ? 1 : 0) + (c.bottomRight ? 1 : 0) * 2;
+				}
+			}
+		}
+
+		if (borders == 2) {
+			if ((c.up && c.left && c.topLeft) || (c.down && c.left && c.bottomLeft) || (c.up && c.right && c.topRight)
+					|| (c.down && c.right && c.bottomRight))
+				tileX += 3;
+		}
+
+		return tileX + 8 * tileY;
+	}
+
+}

src/main/java/com/simibubi/create/modules/contraptions/CachedBufferReloader.java

@@ -1,5 +1,6 @@
 package com.simibubi.create.modules.contraptions;
 
+import com.simibubi.create.foundation.block.CTModelTextureHandler;
 import com.simibubi.create.foundation.utility.ColoredIndicatorRenderer;
 import com.simibubi.create.modules.contraptions.base.KineticTileEntityRenderer;
 import com.simibubi.create.modules.contraptions.receivers.constructs.ContraptionRenderer;
@@ -22,6 +23,7 @@ public class CachedBufferReloader extends ReloadListener<String> {
 		ContraptionRenderer.invalidateCache();
 		MechanicalBearingTileEntityRenderer.invalidateCache();
 		ColoredIndicatorRenderer.invalidateCache();
+		CTModelTextureHandler.reloadUVs();
 	}
 
 

src/main/java/com/simibubi/create/modules/palettes/CTGlassBlock.java

@@ -0,0 +1,37 @@
+package com.simibubi.create.modules.palettes;
+
+import java.util.function.Supplier;
+
+import com.simibubi.create.Create;
+import com.simibubi.create.foundation.block.IHaveConnectedTextures;
+
+import net.minecraft.block.Blocks;
+import net.minecraft.block.GlassBlock;
+import net.minecraft.client.renderer.model.BakedQuad;
+import net.minecraft.util.BlockRenderLayer;
+import net.minecraft.util.ResourceLocation;
+
+public class CTGlassBlock extends GlassBlock implements IHaveConnectedTextures {
+
+	private Supplier<ResourceLocation> textureToReplace;
+	private boolean hasAlpha;
+
+	public CTGlassBlock(boolean hasAlpha) {
+		super(Properties.from(Blocks.GLASS));
+		textureToReplace = () -> {
+			return new ResourceLocation(Create.ID, "block/" + getRegistryName().getPath());
+		};
+		this.hasAlpha = hasAlpha;
+	}
+
+	@Override
+	public boolean appliesTo(BakedQuad quad) {
+		return quad.getSprite().getName().equals(textureToReplace.get());
+	}
+
+	@Override
+	public BlockRenderLayer getRenderLayer() {
+		return hasAlpha ? BlockRenderLayer.TRANSLUCENT : super.getRenderLayer();
+	}
+
+}

src/main/resources/assets/create/blockstates/framed_glass.json

@@ -0,0 +1,5 @@
+{
+    "variants": {
+		"": { "model": "create:block/palettes/framed_glass" }
+	}
+}

src/main/resources/assets/create/models/block/ctblock.json

@@ -0,0 +1,17 @@
+{
+	"parent": "block/block",
+	"elements": [
+		{
+			"from": [0, 0, 0],
+			"to": [16, 16, 16],
+			"faces": {
+				"north": {"uv": [0, 0, 2, 2], "texture": "#sheet", "cullface": "north"},
+				"east": {"uv": [0, 0, 2, 2], "texture": "#sheet", "cullface": "east"},
+				"south": {"uv": [0, 0, 2, 2], "texture": "#sheet", "cullface": "south"},
+				"west": {"uv": [0, 0, 2, 2], "texture": "#sheet", "cullface": "west"},
+				"up": {"uv": [0, 0, 2, 2], "texture": "#sheet", "cullface": "up"},
+				"down": {"uv": [0, 0, 2, 2], "texture": "#sheet", "cullface": "down"}
+			}
+		}
+	]
+}

src/main/resources/assets/create/models/block/palettes/framed_glass.json

@@ -0,0 +1,6 @@
+{
+    "parent": "block/cube_all",
+    "textures": {
+        "all": "create:block/framed_glass"
+    }
+}

src/main/resources/assets/create/models/item/framed_glass.json

@@ -0,0 +1,3 @@
+{
+    "parent": "create:block/palettes/framed_glass"
+}