Difficulty info tooltips

core/assets/bundles/bundle.properties

@@ -827,6 +827,11 @@ difficulty.normal = Normal
 difficulty.hard = Hard
 difficulty.eradication = Eradication
 
+difficulty.enemyHealthMultiplier = Enemy Health: {0}
+difficulty.enemySpawnMultiplier = Enemy Amount: {0}
+difficulty.waveTimeMultiplier = Wave Timer: {0}
+difficulty.nomodifiers = [lightgray](No modifiers)
+
 planets = Planets
 
 planet.serpulo.name = Serpulo

core/src/mindustry/game/Difficulty.java

@@ -21,7 +21,24 @@ public enum Difficulty{
         this.enemyHealthMultiplier = enemyHealthMultiplier;
     }
 
+    public String info(){
+        String res =
+        (enemyHealthMultiplier == 1f ? "" : Core.bundle.format("difficulty.enemyHealthMultiplier", percentStat(enemyHealthMultiplier)) + "\n") +
+        (enemySpawnMultiplier == 1f ? "" : Core.bundle.format("difficulty.enemySpawnMultiplier", percentStat(enemySpawnMultiplier)) + "\n") +
+        (waveTimeMultiplier == 1f ? "" : Core.bundle.format("difficulty.waveTimeMultiplier", percentStatNeg(waveTimeMultiplier)) + "\n");
+
+        return res.isEmpty() ? Core.bundle.get("difficulty.nomodifiers") : res;
+    }
+
     public String localized(){
         return Core.bundle.get("difficulty." + name());
     }
+
+    static String percentStat(float val){
+        return ((int)(val * 100 - 100) > 0 ? "[negstat]+" : "[stat]") + (int)(val * 100 - 100) + "%[]";
+    }
+
+    static String percentStatNeg(float val){
+        return ((int)(val * 100 - 100) > 0 ? "[stat]+" : "[negstat]") + (int)(val * 100 - 100) + "%[]";
+    }
 }

core/src/mindustry/ui/dialogs/CampaignRulesDialog.java

@@ -53,7 +53,8 @@ public class CampaignRulesDialog extends BaseDialog{
                 for(Difficulty diff : Difficulty.all){
                     t.button(diff.localized(), style, () -> {
                         rules.difficulty = diff;
-                    }).group(group).checked(b -> rules.difficulty == diff);
+                    }).group(group).checked(b -> rules.difficulty == diff)
+                    .tooltip(diff.info());
 
                     if(Core.graphics.isPortrait() && diff.ordinal() % 2 == 1){
                         t.row();