Character overlay block

core/assets/icons/icons.properties

@@ -614,3 +614,4 @@
 63068=colored-wall|block-colored-wall-ui
 63067=crux-floor-11|block-crux-floor-11-ui
 63066=crux-floor-12|block-crux-floor-12-ui
+63065=character-overlay|block-character-overlay-ui

core/src/mindustry/content/Blocks.java

@@ -68,6 +68,7 @@ public class Blocks{
 
     //colored
     coloredFloor, coloredWall,
+    characterOverlay,
 
     pebbles, tendrils,
 
@@ -912,6 +913,10 @@ public class Blocks{
             autotile = true;
         }};
 
+        characterOverlay = new CharacterOverlay("character-overlay"){{
+            color = Pal.metalGrayDark;
+        }};
+
         Seq.with(metalFloor, metalFloorDamaged, metalFloor2, metalFloor3, metalFloor4, metalFloor5, darkPanel1, darkPanel2, darkPanel3, darkPanel4, darkPanel5, darkPanel6)
         .each(b -> b.asFloor().wall = darkMetal);
 

core/src/mindustry/world/Block.java

@@ -961,7 +961,7 @@ public class Block extends UnlockableContent implements Senseable{
     }
 
     /** Called when building of this block ends. */
-    public void placeEnded(Tile tile, @Nullable Unit builder, @Nullable Object config){
+    public void placeEnded(Tile tile, @Nullable Unit builder, int rotation, @Nullable Object config){
 
     }
 

core/src/mindustry/world/blocks/ConstructBlock.java

@@ -112,7 +112,7 @@ public class ConstructBlock extends Block{
             if(shouldPlay()) block.placeSound.at(tile, block.placePitchChange ? calcPitch(true) : 1f);
         }
 
-        block.placeEnded(tile, builder, config);
+        block.placeEnded(tile, builder, rotation, config);
 
         Events.fire(new BlockBuildEndEvent(tile, builder, team, false, config));
     }

core/src/mindustry/world/blocks/environment/CharacterOverlay.java

@@ -0,0 +1,54 @@
+package mindustry.world.blocks.environment;
+
+import arc.graphics.*;
+import arc.graphics.g2d.*;
+import arc.util.*;
+import mindustry.annotations.Annotations.*;
+import mindustry.gen.*;
+import mindustry.world.*;
+
+public class CharacterOverlay extends OverlayFloor{
+    /** This is a reduced character set! It is not ASCII! */
+    public static final String chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890\"!?.,;:()[]{}<>|/@\\^-%+=#_&~";
+
+    public @Load(value = "character-overlay#", length = 64) TextureRegion[] letterRegions;
+    public Color color = Color.white;
+
+    public CharacterOverlay(String name){
+        super(name);
+        saveData = true;
+        variants = 0;
+        rotate = true;
+        drawArrow = false;
+    }
+
+    @Override
+    public void drawBase(Tile tile){
+        Draw.color(color);
+        int letterChar = CharOverlayData.character(tile.overlayData);
+        Draw.rect(letterRegions[letterChar], tile.worldx(), tile.worldy(), CharOverlayData.rotation(tile.overlayData) * 90f);
+        Draw.color();
+    }
+
+    @Override
+    public void placeEnded(Tile tile, @Nullable Unit builder, int rotation, @Nullable Object config){
+        byte data = 0;
+        if(config instanceof Integer i){
+            data = i.byteValue();
+        }
+        tile.overlayData = CharOverlayData.get(data, (byte)rotation);
+    }
+
+    public static byte charToData(char c){
+        int index = chars.indexOf(Character.toUpperCase(c));
+        return index == -1 ? 0 : (byte)index;
+    }
+
+    @Struct
+    class CharOverlayDataStruct{
+        @StructField(6)
+        byte character;
+        @StructField(2)
+        byte rotation;
+    }
+}

core/src/mindustry/world/blocks/environment/ColoredFloor.java

@@ -140,7 +140,7 @@ public class ColoredFloor extends Floor{
     }
 
     @Override
-    public void placeEnded(Tile tile, @Nullable Unit builder, @Nullable Object config){
+    public void placeEnded(Tile tile, @Nullable Unit builder, int rotation, @Nullable Object config){
         //config is assumed to be an integer RGBA color
         if(config instanceof Integer i){
             tile.extraData = i;

core/src/mindustry/world/blocks/environment/ColoredWall.java

@@ -46,7 +46,7 @@ public class ColoredWall extends StaticWall{
     }
 
     @Override
-    public void placeEnded(Tile tile, @Nullable Unit builder, @Nullable Object config){
+    public void placeEnded(Tile tile, @Nullable Unit builder, int rotation, @Nullable Object config){
         //config is assumed to be an integer RGBA color
         if(config instanceof Integer i){
             tile.extraData = i;

core/src/mindustry/world/blocks/environment/RemoveOre.java

@@ -44,7 +44,7 @@ public class RemoveOre extends OverlayFloor{
     }
 
     @Override
-    public void placeEnded(Tile tile, @Nullable Unit builder, Object config){
+    public void placeEnded(Tile tile, @Nullable Unit builder, int rotation, Object config){
         tile.setOverlay(Blocks.air);
     }
 

core/src/mindustry/world/blocks/environment/RemoveWall.java

@@ -43,7 +43,7 @@ public class RemoveWall extends Block{
     }
 
     @Override
-    public void placeEnded(Tile tile, @Nullable Unit builder, Object config){
+    public void placeEnded(Tile tile, @Nullable Unit builder, int rotation, Object config){
         tile.setBlock(Blocks.air);
         if(tile.overlay().wallOre){
             tile.setOverlay(Blocks.air);