Reworked cable connections (#3334)

* Reworked cable connections

Added enums for cable variants and sizes.
Rules for connections between a cable and another cable or grid member
are much more simple without any exceptions for certain combinations.
1/ Connections are rendered as the lowest type between cores.
2/ Each type uses are core for clear separation.
3/ The core will always be on the cable with the higher order.

src/main/java/appeng/client/render/cablebus/CableBuilder.java

@@ -132,7 +132,7 @@ class CableBuilder
 				break;
 			case DENSE_COVERED:
 			case DENSE_SMART:
-				this.addCableCore( CableCoreType.DENSE_SMART, color, quadsOut );
+				this.addCableCore( CableCoreType.DENSE, color, quadsOut );
 				break;
 			default:
 		}
@@ -153,7 +153,7 @@ class CableBuilder
 			case COVERED:
 				cubeBuilder.addCube( 5, 5, 5, 11, 11, 11 );
 				break;
-			case DENSE_SMART:
+			case DENSE:
 				cubeBuilder.addCube( 3, 3, 3, 13, 13, 13 );
 				break;
 		}
@@ -329,7 +329,6 @@ class CableBuilder
 
 	public void addConstrainedCoveredConnection( EnumFacing facing, AEColor cableColor, int distanceFromEdge, List<BakedQuad> quadsOut )
 	{
-
 		// The core of a covered cable reaches up to 5 voxels from the block edge, so
 		// drawing a connection can only occur from there onwards
 		if( distanceFromEdge >= 5 )
@@ -348,6 +347,11 @@ class CableBuilder
 
 	public void addSmartConnection( EnumFacing facing, AEColor cableColor, AECableType connectionType, boolean cableBusAdjacent, int channels, List<BakedQuad> quadsOut )
 	{
+		if( connectionType == AECableType.COVERED || connectionType == AECableType.GLASS )
+		{
+			this.addCoveredConnection( facing, cableColor, connectionType, cableBusAdjacent, quadsOut );
+			return;
+		}
 
 		CubeBuilder cubeBuilder = new CubeBuilder( this.format, quadsOut );
 

src/main/java/appeng/client/render/cablebus/CableBusBakedModel.java

@@ -169,20 +169,7 @@ public class CableBusBakedModel implements IBakedModel
 
 		final AECableType secondType = sides.get( firstSide.getOpposite() );
 
-		// Certain cable types have restrictions on when they're rendered as a straight connection
-		switch( cableType )
-		{
-			case GLASS:
-				return firstType == AECableType.GLASS && secondType == AECableType.GLASS;
-			case DENSE_COVERED:
-				return firstType == AECableType.DENSE_COVERED && secondType == AECableType.DENSE_COVERED;
-			case DENSE_SMART:
-				return firstType == AECableType.DENSE_SMART && secondType == AECableType.DENSE_SMART;
-			default:
-				break;
-		}
-
-		return true;
+		return firstType == secondType;
 	}
 
 	private void addCableQuads( CableBusRenderState renderState, List<BakedQuad> quadsOut )

src/main/java/appeng/client/render/cablebus/CableCoreType.java

@@ -40,7 +40,7 @@ import appeng.core.AppEng;
  */
 public enum CableCoreType
 {
-	GLASS( "parts/cable/core/glass" ), COVERED( "parts/cable/core/covered" ), DENSE_SMART( "parts/cable/core/dense_smart" );
+	GLASS( "parts/cable/core/glass" ), COVERED( "parts/cable/core/covered" ), DENSE( "parts/cable/core/dense_smart" );
 
 	private static final Map<AECableType, CableCoreType> cableMapping = generateCableMapping();
 
@@ -55,8 +55,8 @@ public enum CableCoreType
 		result.put( AECableType.GLASS, CableCoreType.GLASS );
 		result.put( AECableType.COVERED, CableCoreType.COVERED );
 		result.put( AECableType.SMART, CableCoreType.COVERED );
-		result.put( AECableType.DENSE_COVERED, CableCoreType.DENSE_SMART );
-		result.put( AECableType.DENSE_SMART, CableCoreType.DENSE_SMART );
+		result.put( AECableType.DENSE_COVERED, CableCoreType.DENSE );
+		result.put( AECableType.DENSE_SMART, CableCoreType.DENSE );
 
 		return ImmutableMap.copyOf( result );
 	}