⬆ Updated code

common/src/main/java/ziyue/tjmetro/IDrawingExtends.java

@@ -21,6 +21,8 @@
 import java.util.function.Function;
 import java.util.function.UnaryOperator;
 
+import static mtr.data.IGui.MAX_LIGHT_GLOWING;
+
 /**
  * Some methods similar to methods in <b>IDrawing</b>.
  *
@@ -135,7 +137,7 @@ static void drawStringWithFont(PoseStack matrices, Font textRenderer, MultiBuffe
 
             final float xOffset = horizontalAlignment.getOffset(xAlignment.getOffset(x * scaleX, totalWidth), textRenderer.width(orderedTexts.get(i)) * extraScale - totalWidth);
 
-            final float shade = light == IGui.MAX_LIGHT_GLOWING ? 1 : Math.min(LightTexture.block(light) / 16F * 0.1F + 0.7F, 1);
+            final float shade = light == MAX_LIGHT_GLOWING ? 1 : Math.min(LightTexture.block(light) / 16F * 0.1F + 0.7F, 1);
             final int a = (textColor >> 24) & 0xFF;
             final int r = (int) (((textColor >> 16) & 0xFF) * shade);
             final int g = (int) (((textColor >> 8) & 0xFF) * shade);

common/src/main/java/ziyue/tjmetro/TianjinMetroClient.java

@@ -2,12 +2,8 @@
 
 import mtr.RegistryClient;
 import mtr.render.RenderPSDAPGDoor;
-import mtr.render.RenderPSDTop;
-import mtr.render.RenderStationNameTiled;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.renderer.RenderType;
-import ziyue.tjmetro.client.ClientCache;
-import ziyue.tjmetro.client.RouteMapGenerator;
 import ziyue.tjmetro.packet.IPacket;
 import ziyue.tjmetro.packet.PacketGuiClient;
 import ziyue.tjmetro.render.*;
@@ -90,6 +86,6 @@ public static void init() {
         RegistryClient.registerNetworkReceiver(IPacket.PACKET_OPEN_CUSTOM_CONTENT_SCREEN, packet -> PacketGuiClient.openCustomContentScreenS2C(Minecraft.getInstance(), packet));
         RegistryClient.registerNetworkReceiver(IPacket.PACKET_OPEN_CUSTOM_COLOR_SCREEN, packet -> PacketGuiClient.openCustomColorScreenS2C(Minecraft.getInstance(), packet));
         RegistryClient.registerNetworkReceiver(IPacket.PACKET_OPEN_RAILWAY_SIGN_SCREEN, packet -> PacketGuiClient.openRailwaySignScreenS2C(Minecraft.getInstance(), packet));
-        RegistryClient.registerNetworkReceiver(IPacket.PACKET_OPEN_RAILWAY_SIGN_WALL_DOUBLE_SCREEN, packet -> PacketGuiClient.openRailwaySignWallDoubleScreenS2C(Minecraft.getInstance(), packet));
+        RegistryClient.registerNetworkReceiver(IPacket.PACKET_OPEN_RAILWAY_SIGN_DOUBLE_SCREEN, packet -> PacketGuiClient.openRailwaySignDoubleScreenS2C(Minecraft.getInstance(), packet));
     }
 }

common/src/main/java/ziyue/tjmetro/block/BlockRailwaySignTianjin.java

@@ -47,14 +47,7 @@ public BlockState updateShape(BlockState state, Direction direction, BlockState
 
     @Override
     public void setPlacedBy(Level world, BlockPos pos, BlockState state, LivingEntity placer, ItemStack itemStack) {
-        if (world.isClientSide) return;
-        final Direction facing = IBlock.getStatePropertySafe(state, FACING);
-        for (int i = 1; i <= getMiddleLength(); i++) {
-            world.setBlock(pos.relative(facing.getClockWise(), i), BlockList.RAILWAY_SIGN_TIANJIN_MIDDLE.get().defaultBlockState().setValue(FACING, facing), 3);
-        }
-        world.setBlock(pos.relative(facing.getClockWise(), getMiddleLength() + 1), state.getBlock().defaultBlockState().setValue(FACING, facing.getOpposite()), 3);
-        world.updateNeighborsAt(pos, Blocks.AIR);
-        state.updateNeighbourShapes(world, pos, 3);
+        IRailwaySign.setPlacedBy(world, pos, state, BlockList.RAILWAY_SIGN_TIANJIN_MIDDLE.get(), getMiddleLength());
     }
 
     @Override
@@ -91,11 +84,10 @@ public String getDescriptionId() {
 
     @Override
     public BlockEntityMapper createBlockEntity(BlockPos pos, BlockState state) {
-        if (this == BlockList.RAILWAY_SIGN_TIANJIN_MIDDLE.get()) {
+        if (this == BlockList.RAILWAY_SIGN_TIANJIN_MIDDLE.get())
             return null;
-        } else {
+        else
             return new TileEntityRailwaySignTianjin(length, isOdd, pos, state);
-        }
     }
 
     public static class TileEntityRailwaySignTianjin extends TileEntityRailwaySign

common/src/main/java/ziyue/tjmetro/block/BlockRailwaySignWallDouble.java

@@ -49,7 +49,7 @@ public InteractionResult use(BlockState state, Level world, BlockPos pos, Player
         final BlockPos checkPos = findEndWithDirection(world, pos, facing, false);
         return IBlockExtends.checkHoldingBrushOrWrench(world, player, () -> {
             if (checkPos != null) {
-                PacketGuiServer.openRailwaySignWallDoubleScreenS2C((ServerPlayer) player, checkPos);
+                PacketGuiServer.openRailwaySignDoubleScreenS2C((ServerPlayer) player, checkPos);
             }
         });
     }

common/src/main/java/ziyue/tjmetro/client/ClientCache.java

@@ -146,6 +146,10 @@ public DynamicResource getRouteSquare(int color, String routeName, IGui.Horizont
         return getResource(String.format("tjmetro_route_square_%s_%s_%s", color, routeName, horizontalAlignment), () -> RouteMapGenerator.generateRouteSquare(color, routeName, horizontalAlignment), DefaultRenderingColor.TRANSPARENT);
     }
 
+    public DynamicResource getExitSignLetter(String exitLetter, String exitNumber, int backgroundColor) {
+        return getResource(String.format("tjmetro_exit_sign_letter_%s_%s", exitLetter, exitNumber), () -> RouteMapGenerator.generateExitSignLetter(exitLetter, exitNumber, backgroundColor), DefaultRenderingColor.TRANSPARENT);
+    }
+
     public DynamicResource getSignText(String string, HorizontalAlignment horizontalAlignment, float paddingScale, int backgroundColor, int textColor) {
         return getResource(String.format("tjmetro_sign_text_%s_%s_%s_%s_%s", string, horizontalAlignment, paddingScale, backgroundColor, textColor), () -> RouteMapGenerator.generateSignText(string, horizontalAlignment, paddingScale, backgroundColor, textColor), DefaultRenderingColor.TRANSPARENT);
     }

common/src/main/java/ziyue/tjmetro/client/RouteMapGenerator.java

@@ -36,11 +36,12 @@ public class RouteMapGenerator implements IGui
     protected static int fontSizeBig;
     protected static int fontSizeSmall;
 
-    protected static final int MIN_VERTICAL_SIZE = 5;
-    protected static final String TEMP_CIRCULAR_MARKER = "temp_circular_marker";
-    protected static final ResourceLocation TRAIN_LOGO_RESOURCE = new ResourceLocation(Reference.MOD_ID, "textures/sign/train.png");
-    protected static final ResourceLocation ARROW_RESOURCE = new ResourceLocation(MTR.MOD_ID, "textures/block/sign/arrow.png");
-    protected static final ResourceLocation CIRCLE_RESOURCE = new ResourceLocation(MTR.MOD_ID, "textures/block/sign/circle.png");
+    public static final int MIN_VERTICAL_SIZE = 5;
+    public static final String TEMP_CIRCULAR_MARKER = "temp_circular_marker";
+    public static final ResourceLocation TRAIN_LOGO_RESOURCE = new ResourceLocation(Reference.MOD_ID, "textures/sign/train.png");
+    public static final ResourceLocation EXIT_RESOURCE = new ResourceLocation(MTR.MOD_ID, "textures/block/sign/exit_letter_blank.png");
+    public static final ResourceLocation ARROW_RESOURCE = new ResourceLocation(MTR.MOD_ID, "textures/block/sign/arrow.png");
+    public static final ResourceLocation CIRCLE_RESOURCE = new ResourceLocation(MTR.MOD_ID, "textures/block/sign/circle.png");
 
     public static void setConstants() {
         scale = (int) Math.pow(2, Config.dynamicTextureResolution() + 5);
@@ -434,6 +435,30 @@ public static NativeImage generateRouteSquare(int color, String routeName, Horiz
         return null;
     }
 
+    public static NativeImage generateExitSignLetter(String exitLetter, String exitNumber, int backgroundColor) {
+        try {
+            final int size = scale / 2;
+            final boolean noNumber = exitNumber.isEmpty();
+            final int textSize = size * 7 / 8;
+            final ClientCache.Text letter = ClientCache.DATA_CACHE.getText(exitLetter, noNumber ? textSize : textSize * 2 / 3, textSize, textSize, size, size, HorizontalAlignment.CENTER);
+            final ClientCache.Text number = noNumber ? null : ClientCache.DATA_CACHE.getText(exitNumber, textSize / 3, textSize, textSize / 2, textSize / 2, size, HorizontalAlignment.CENTER);
+
+            final NativeImage nativeImage = new NativeImage(NativeImage.Format.RGBA, size, size, false);
+            nativeImage.fillRect(0, 0, size, size, backgroundColor);
+            drawResource(nativeImage, EXIT_RESOURCE, 0, 0, size, size, false, 0, 1, 0, true);
+            drawString(nativeImage,  letter, size / 2 - (noNumber ? 0 : textSize / 6 - size / 32), size / 2, HorizontalAlignment.CENTER, VerticalAlignment.CENTER, 0, ARGB_WHITE, false);
+            if (!noNumber) {
+                drawString(nativeImage, number, size / 2 + textSize / 3 - size / 32, size / 2 + textSize / 8, HorizontalAlignment.CENTER, VerticalAlignment.CENTER, 0, ARGB_WHITE, false);
+            }
+            return nativeImage;
+        } catch (Exception e) {
+            TianjinMetro.LOGGER.error(e.getMessage());
+        }
+
+        return null;
+    }
+
+
     public static NativeImage generateSignText(String string, HorizontalAlignment horizontalAlignment, float paddingScale, int backgroundColor, int textColor) {
         try {
             final int height = scale;

common/src/main/java/ziyue/tjmetro/packet/IPacket.java

@@ -1,6 +1,5 @@
 package ziyue.tjmetro.packet;
 
-import mtr.MTR;
 import net.minecraft.resources.ResourceLocation;
 import ziyue.tjmetro.Reference;
 
@@ -15,7 +14,7 @@ public interface IPacket
     ResourceLocation PACKET_OPEN_CUSTOM_COLOR_SCREEN = new ResourceLocation(Reference.MOD_ID, "packet_open_custom_color_screen");
     ResourceLocation PACKET_UPDATE_CUSTOM_COLOR = new ResourceLocation(Reference.MOD_ID, "packet_update_custom_color_screen");
     ResourceLocation PACKET_OPEN_RAILWAY_SIGN_SCREEN = new ResourceLocation(Reference.MOD_ID, "packet_open_railway_sign_screen");
-    ResourceLocation PACKET_OPEN_RAILWAY_SIGN_WALL_DOUBLE_SCREEN = new ResourceLocation(Reference.MOD_ID, "packet_open_railway_sign_wall_double_screen");
+    ResourceLocation PACKET_OPEN_RAILWAY_SIGN_DOUBLE_SCREEN = new ResourceLocation(Reference.MOD_ID, "packet_open_railway_sign_double_screen");
     ResourceLocation PACKET_SIGN_TYPES = new ResourceLocation(Reference.MOD_ID, "packet_sign_types");
     ResourceLocation PACKET_SIGN_TYPES_DOUBLE = new ResourceLocation(Reference.MOD_ID, "packet_sign_types_double");
 }

common/src/main/java/ziyue/tjmetro/packet/PacketGuiClient.java

@@ -70,7 +70,7 @@ public static void openRailwaySignScreenS2C(Minecraft minecraftClient, FriendlyB
         });
     }
 
-    public static void openRailwaySignWallDoubleScreenS2C(Minecraft minecraftClient, FriendlyByteBuf packet) {
+    public static void openRailwaySignDoubleScreenS2C(Minecraft minecraftClient, FriendlyByteBuf packet) {
         final BlockPos pos = packet.readBlockPos();
         minecraftClient.execute(() -> {
             if (!(minecraftClient.screen instanceof RailwaySignScreen)) {

common/src/main/java/ziyue/tjmetro/packet/PacketGuiServer.java

@@ -119,10 +119,10 @@ public static void receiveSignIdsC2S(MinecraftServer minecraftServer, ServerPlay
         });
     }
 
-    public static void openRailwaySignWallDoubleScreenS2C(ServerPlayer player, BlockPos signPos) {
+    public static void openRailwaySignDoubleScreenS2C(ServerPlayer player, BlockPos signPos) {
         final FriendlyByteBuf packet = new FriendlyByteBuf(Unpooled.buffer());
         packet.writeBlockPos(signPos);
-        Registry.sendToPlayer(player, PACKET_OPEN_RAILWAY_SIGN_WALL_DOUBLE_SCREEN, packet);
+        Registry.sendToPlayer(player, PACKET_OPEN_RAILWAY_SIGN_DOUBLE_SCREEN, packet);
     }
 
     public static void sendSignIdsDoubleC2S(BlockPos signPos, List<Set<Long>> selectedIds, String[][] signIds) {