Working on path visualization

src/Location.cpp

@@ -104,6 +104,7 @@ namespace FRG
 
 	void Location::setup(const LocationSetup& params, Quest::QuestJournal* journal, AudioPlayerAsync* audioPlayer)
 	{
+		pathVisualization.initialize();
 
 		// Load static game objects
 		{
@@ -708,6 +709,11 @@ namespace FRG
 		renderer.shaderManager.PopShader();
 	}
 
+	void Location::setPathVisualizationEnabled(bool enabled)
+	{
+		pathVisualization.setEnabled(enabled);
+	}
+
 	void Location::drawGame()
 	{
 
@@ -766,6 +772,7 @@ namespace FRG
 		drawNpcCar();
 
 		for (auto& tz : teleportZones) tz.draw(renderer, Environment::zoom, Environment::width, Environment::height);
+		pathVisualization.draw(renderer);
 
 		if (editorMode == EditorMode::Navigation) {
 			editor.drawNavigation();
@@ -986,6 +993,7 @@ namespace FRG
 
 		for (auto& tz : teleportZones) tz.draw(renderer, Environment::zoom, Environment::width, Environment::height);
 #endif
+		pathVisualization.draw(renderer);
 
 		if (editorMode == EditorMode::Navigation) {
 			editor.drawNavigation();
@@ -1068,6 +1076,7 @@ namespace FRG
 		//drawNpcCar();
 
 		for (auto& tz : teleportZones) tz.draw(renderer, Environment::zoom, Environment::width, Environment::height);
+		pathVisualization.draw(renderer);
 
 		if (editorMode == EditorMode::Navigation) {
 			editor.drawNavigation();
@@ -1375,6 +1384,7 @@ namespace FRG
 		drawNpcCar();
 
 		for (auto& tz : teleportZones) tz.draw(renderer, Environment::zoom, Environment::width, Environment::height);
+		pathVisualization.draw(renderer);
 
 		if (editorMode == EditorMode::Navigation) {
 			editor.drawNavigation();
@@ -1669,6 +1679,8 @@ namespace FRG
 
 	void Location::update(int64_t delta)
 	{
+		pathVisualization.update(delta);
+
 		for (auto& intObj : interactiveObjects) {
 			intObj.update(delta);
 		}
@@ -1986,6 +1998,10 @@ namespace FRG
 			return;
 		}
 
+		// Any new gameplay click invalidates the previous click feedback. Ground
+		// clicks and interactive-object clicks that require walking start a replacement.
+		pathVisualization.cancel();
+
 		//logger() << "[CLICK] Camera position: (" << camPos.x() << ", " << camPos.y() << ", " << camPos.z() << ")" << std::endl;
 		//logger() << "[CLICK] Ray direction: (" << rayDir.x() << ", " << rayDir.y() << ", " << rayDir.z() << ")" << std::endl;
 
@@ -2001,9 +2017,13 @@ namespace FRG
 			state.targetInteractiveObjectIndex = findInteractiveObjectIndex(clickedObject);
 			state.targetInteractNpcIndex = -1;
 			state.targetTeleportZoneIndex = -1;
-			player->setTarget(clickedObject->state.hasInteractionPosition
+			const Eigen::Vector3f interactionTarget = clickedObject->state.hasInteractionPosition
 				? clickedObject->state.interactionPosition
-				: clickedObject->state.position);
+				: clickedObject->state.position;
+			player->setTarget(interactionTarget);
+			if (!player->state.pathWaypoints.empty()) {
+				pathVisualization.start(*player, interactionTarget);
+			}
 			player->state.attackTargetIndex = CharacterState::kNoTarget;
 			//logger() << "[CLICK] Player moving to object..." << std::endl;
 		}
@@ -2087,7 +2107,9 @@ namespace FRG
 					player->setTarget(clickedTeleport->position);
 					player->state.attackTargetIndex = CharacterState::kNoTarget;
 				} else {
-					player->setTarget(Eigen::Vector3f(hit.x(), 0.f, hit.z()));
+					const Eigen::Vector3f clickedDestination(hit.x(), 0.f, hit.z());
+					player->setTarget(clickedDestination);
+					pathVisualization.start(*player, clickedDestination);
 					player->state.attackTargetIndex = CharacterState::kNoTarget;
 					state.targetInteractNpcIndex = -1;
 					state.targetTeleportZoneIndex = -1;