Implemented Revelation Dance (#166)

* implemented Revelation Dance

* fixed steam engine activating on all water moves

* implemented typeless

* stellar handling for revelation dance

* removed testing lines

* changed to UNKNOWN implementation

* removed UNKNOWN RGB

* removed print debug + unnecessary logic

* simplified test condition further

src/data/move.ts

@@ -2440,6 +2440,27 @@ export class HiddenPowerTypeAttr extends VariableMoveTypeAttr {
   }
 }
 
+export class MatchUserTypeAttr extends VariableMoveTypeAttr {
+  apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean {
+    const type = (args[0] as Utils.IntegerHolder);
+
+    const userTypes = user.getTypes(true);
+
+    if(userTypes.includes(Type.STELLAR)) { // will not change to stellar type
+      const nonTeraTypes = user.getTypes();
+      type.value = nonTeraTypes[0];
+      return true; 
+    }
+    else if (userTypes.length > 0) {
+      type.value = userTypes[0];
+      return true;
+    }
+    else
+      return false;
+
+  }
+}
+
 export class VariableMoveTypeMultiplierAttr extends MoveAttr {
   apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean {
     return false;
@@ -5796,7 +5817,7 @@ export function initMoves() {
       .unimplemented(),
     new AttackMove(Moves.REVELATION_DANCE, Type.NORMAL, MoveCategory.SPECIAL, 90, 100, 15, -1, 0, 7)
       .danceMove()
-      .partial(),
+      .attr(MatchUserTypeAttr),
     new AttackMove(Moves.CORE_ENFORCER, Type.DRAGON, MoveCategory.SPECIAL, 100, 100, 10, -1, 0, 7)
       .target(MoveTarget.ALL_NEAR_ENEMIES)
       .partial(),

src/field/pokemon.ts

@@ -778,9 +778,16 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
         types.splice(flyingIndex, 1);
     }
 
-    if (!types.length)
+    if (!types.length) // become UNKNOWN if no types are present
       types.push(Type.UNKNOWN);
 
+    if (types.length > 1 && types.includes(Type.UNKNOWN)) { // remove UNKNOWN if other types are present
+      const index = types.indexOf(Type.UNKNOWN);
+      if (index !== -1) {
+          types.splice(index, 1);
+      }
+    }
+
     return types;
   }