MUTATIONOFJB: Fix SETANIM and add support for pickupable statics.

4 files changed, 43 insertions, 9 deletions

diff --git a/engines/mutationofjb/commands/setobjectframecommand.cpp b/engines/mutationofjb/commands/setobjectframecommand.cpp
index 54d9059af7..8fcff2be26 100644
--- a/engines/mutationofjb/commands/setobjectframecommand.cpp
+++ b/engines/mutationofjb/commands/setobjectframecommand.cpp
@@ -29,7 +29,7 @@
 /** @file
  * "SETANIM " <objectId> " " <frame>
  *
- * Sets the frame for the specified object and redraws it.
+ * Draws the frame for the specified object without changing the object's current frame.
  * If the object is active, it is deactivated.
  */
 
@@ -51,7 +51,8 @@ Command::ExecuteResult SetObjectFrameCommand::execute(ScriptExecutionContext &sc
 	Object *const object = scriptExecCtx.getGameData().getCurrentScene()->getObject(_objectId);
 
 	object->_active = 0;
-	scriptExecCtx.getGame().getRoom().drawObject(_objectId);
+	// The object's current frame is not changed, so use frame override instead.
+	scriptExecCtx.getGame().getRoom().drawObject(_objectId, _frame);
 
 	return Finished;
 }
diff --git a/engines/mutationofjb/gamescreen.cpp b/engines/mutationofjb/gamescreen.cpp
index 024d7b6308..b8d6743570 100644
--- a/engines/mutationofjb/gamescreen.cpp
+++ b/engines/mutationofjb/gamescreen.cpp
@@ -28,6 +28,7 @@
 #include "mutationofjb/gamedata.h"
 #include "mutationofjb/mutationofjb.h"
 #include "mutationofjb/inventory.h"
+#include "mutationofjb/room.h"
 #include "mutationofjb/util.h"
 #include "mutationofjb/widgets/conversationwidget.h"
 #include "mutationofjb/widgets/gamewidget.h"
@@ -405,6 +406,7 @@ void GameScreen::onGameStaticClicked(GameWidget *, Static *stat) {
 
 				_game.getGameData().getInventory().addItem(inventoryName);
 				stat->_active = 0;
+				_game.getRoom().drawStatic(stat);
 			}
 		}
 	}
diff --git a/engines/mutationofjb/room.cpp b/engines/mutationofjb/room.cpp
index e478a1cb8c..1d49fb3c80 100644
--- a/engines/mutationofjb/room.cpp
+++ b/engines/mutationofjb/room.cpp
@@ -148,11 +148,11 @@ void Room::drawObjectAnimation(uint8 objectId, int animOffset) {
 		blit_if(_surfaces[animFrame], _background, Common::Point(object->_x, object->_y), ThresholdBlitOperation());
 }
 
-void Room::drawObject(uint8 objectId) {
+void Room::drawObject(uint8 objectId, uint8 overrideFrame) {
 	Scene *const currentScene = _game->getGameData().getCurrentScene();
 	Object *const object = currentScene->getObject(objectId);
 
-	drawObjectAnimation(objectId, object->_currentFrame - _objectsStart[objectId - 1] - 1);
+	drawObjectAnimation(objectId, (overrideFrame ? overrideFrame : object->_currentFrame) - _objectsStart[objectId - 1] - 1);
 }
 
 void Room::drawBitmap(uint8 bitmapId) {
@@ -171,6 +171,16 @@ void Room::drawBitmap(uint8 bitmapId) {
 	drawFrames(bitmap->_roomFrame - 1, bitmap->_roomFrame - 1, bitmapArea, 0xC0);
 }
 
+void Room::drawStatic(Static *const stat) {
+	if (!stat || !stat->allowsImplicitPickup()) {
+		return;
+	}
+
+	const uint8 frame = stat->_active ? 1 : 2; // Hardcoded values. Active is taken from frame 1 and inactive from frame 2.
+	const Common::Rect staticArea(stat->_x, stat->_y, stat->_x + stat->_width, stat->_y + stat->_height);
+	drawFrames(frame, frame, staticArea, 0xC0); // Hardcoded threshold.
+}
+
 void Room::drawFrames(uint8 fromFrame, uint8 toFrame, const Common::Rect &area, uint8 threshold) {
 	GameData &gameData = _game->getGameData();
 
@@ -195,15 +205,19 @@ void Room::drawFrames(uint8 fromFrame, uint8 toFrame, const Common::Rect &area,
 		AnimationDecoder decoder(fileName, _background);
 		decoder.setPartialMode(fromFrame, toFrame, area, threshold);
 		decoder.decode(nullptr);
-		if (!area.isEmpty())
-			_screen->getSubArea(area); // Add dirty rect.
-		else
-			_screen->makeAllDirty();
 	}
 }
 
 void Room::initialDraw() {
 	Scene *const currentScene = _game->getGameData().getCurrentScene();
+
+	for (uint8 i = 0; i < currentScene->getNoStatics(); ++i) {
+		Static *const stat = currentScene->getStatic(i + 1);
+		if (stat->_active && stat->allowsImplicitPickup()) {
+			drawStatic(stat);
+		}
+	}
+
 	for (uint8 i = 0; i < currentScene->getNoObjects(); ++i) {
 		Object *const obj = currentScene->getObject(i + 1);
 		if (obj->_active) {
diff --git a/engines/mutationofjb/room.h b/engines/mutationofjb/room.h
index 705e285d4a..1c76344303 100644
--- a/engines/mutationofjb/room.h
+++ b/engines/mutationofjb/room.h
@@ -36,6 +36,7 @@ namespace MutationOfJB {
 
 class EncryptedFile;
 class Game;
+class Static;
 
 class Room {
 public:
@@ -45,8 +46,24 @@ public:
 	Room(Game *game, Graphics::Screen *screen);
 	bool load(uint8 roomNumber, bool roomB);
 	void drawObjectAnimation(uint8 objectId, int animOffset);
-	void drawObject(uint8 objectId);
+
+	/**
+	 * Draws an object.
+	 * By default, object's current frame is used, but that can be overridden.
+	 *
+	 * @param objectId ID of object to draw.
+	 * @param overrideFrame Optional frame override.
+	 */
+	void drawObject(uint8 objectId, uint8 overrideFrame = 0);
 	void drawBitmap(uint8 bitmapId);
+
+	/**
+	 * Draws a static.
+	 * Only statics that allow implicit pickup are drawable.
+	 *
+	 * @param stat Static.
+	 */
+	void drawStatic(Static *stat);
 	void drawFrames(uint8 fromFrame, uint8 toFrame, const Common::Rect &area = Common::Rect(), uint8 threshold = 0xFF);
 	void initialDraw();
 	void redraw(bool useBackgroundBuffer = true);