From 00d00f9cdcd0279e3e3014080508e571abd7795f Mon Sep 17 00:00:00 2001
From: Vladimir Menshakov
Date: Sun, 7 Feb 2010 17:12:52 +0000
Subject: pathfinding improvements, added async flag setting

svn-id: r47968
---
 engines/teenagent/scene.cpp | 65 +++++++++++++++++++++++++++++----------------
 engines/teenagent/scene.h   |  3 ++-
 2 files changed, 44 insertions(+), 24 deletions(-)

diff --git a/engines/teenagent/scene.cpp b/engines/teenagent/scene.cpp
index 8767a23498..5c41e17c64 100644
--- a/engines/teenagent/scene.cpp
+++ b/engines/teenagent/scene.cpp
@@ -95,6 +95,8 @@ bool Scene::findPath(Scene::Path &p, const Common::Point &src, const Common::Poi
 					w.rect.side(w1, w2, w.side_hint[3], p1);
 					debug(1, "hint: %d,%d-%d,%d", w1.x, w1.y, w2.x, w2.y);
 					p.insert(next, w1);
+					if (mask & 2)
+						p.insert(next, w2);
 					boxes.erase(wi);
 					break;
 				}
@@ -105,6 +107,8 @@ bool Scene::findPath(Scene::Path &p, const Common::Point &src, const Common::Poi
 					w.rect.side(w1, w2, w.side_hint[1], p1);
 					debug(1, "hint: %d,%d-%d,%d", w1.x, w1.y, w2.x, w2.y);
 					p.insert(next, w1);
+					if (mask & 8)
+						p.insert(next, w2);
 					boxes.erase(wi);
 					break;
 				}
@@ -117,6 +121,8 @@ bool Scene::findPath(Scene::Path &p, const Common::Point &src, const Common::Poi
 					w.rect.side(w1, w2, w.side_hint[0], p1);
 					debug(1, "hint: %d,%d-%d,%d", w1.x, w1.y, w2.x, w2.y);
 					p.insert(next, w1);
+					if (mask & 4)
+						p.insert(next, w2);
 					boxes.erase(wi);
 					break;
 				}
@@ -127,6 +133,8 @@ bool Scene::findPath(Scene::Path &p, const Common::Point &src, const Common::Poi
 					w.rect.side(w1, w2, w.side_hint[2], p1);
 					debug(1, "hint: %d,%d-%d,%d", w1.x, w1.y, w2.x, w2.y);
 					p.insert(next, w1);
+					if (mask & 1)
+						p.insert(next, w2);
 					boxes.erase(wi);
 					break;
 				}
@@ -144,29 +152,28 @@ void Scene::moveTo(const Common::Point &_point, byte orient, bool validate) {
 	debug(0, "moveTo(%d, %d, %u)", point.x, point.y, orient);
 	const Common::Array<Walkbox> &scene_walkboxes = walkboxes[_id - 1];
 
-	if (validate) {
-		for (byte i = 0; i < scene_walkboxes.size(); ++i) {
-			const Walkbox &w = scene_walkboxes[i];
-			if (w.rect.in(point)) {
-				debug(0, "bumped into walkbox %u", i);
-				w.dump();
-				byte o = w.orientation;
-				switch (o) {
-				case 1:
-					point.y = w.rect.top - 1;
-					break;
-				case 2:
-					point.x = w.rect.right + 1;
-					break;
-				case 3:
-					point.y = w.rect.bottom + 1;
-					break;
-				case 4:
-					point.x = w.rect.left - 1;
-					break;
-				default:
+	for (byte i = 0; i < scene_walkboxes.size(); ++i) {
+		const Walkbox &w = scene_walkboxes[i];
+		if (w.rect.in(point)) {
+			debug(0, "bumped into walkbox %u", i);
+			w.dump();
+			byte o = w.orientation;
+			switch (o) {
+			case 1:
+				point.y = w.rect.top - 1;
+				break;
+			case 2:
+				point.x = w.rect.right + 1;
+				break;
+			case 3:
+				point.y = w.rect.bottom + 1;
+				break;
+			case 4:
+				point.x = w.rect.left - 1;
+				break;
+			default:
+				if (validate)
 					return;
-				}
 			}
 		}
 	}
@@ -251,6 +258,12 @@ void Scene::loadObjectData() {
 		for (byte j = 0; j < walkboxes_n; ++j) {
 			Walkbox w;
 			w.load(walkboxes_base + 14 * j);
+			if ((w.side_hint[0] | w.side_hint[1] | w.side_hint[2] | w.side_hint[3]) == 0) {
+				w.side_hint[0] = 2;
+				w.side_hint[1] = 3;
+				w.side_hint[2] = 4;
+				w.side_hint[3] = 1;
+			}
 			//walkbox[i]->dump();
 			scene_walkboxes.push_back(w);
 		}
@@ -481,7 +494,7 @@ bool Scene::processEvent(const Common::Event &event) {
 			}
 			break;
 		}
-#if 0
+#if 1
 		case '1':
 		case '2':
 		case '3':
@@ -1093,6 +1106,12 @@ bool Scene::processEventQueue() {
 			_engine->quitGame();
 			break;
 
+		case SceneEvent::kSetFlag:
+			debug(0, "async set_flag(%04x, %d)", current_event.callback, current_event.color);
+			Resources::instance()->dseg.set_byte(current_event.callback, current_event.color);
+			current_event.clear();
+			break;
+
 		default:
 			error("empty/unhandler event[%d]", (int)current_event.type);
 		}
diff --git a/engines/teenagent/scene.h b/engines/teenagent/scene.h
index ef47ce0fc1..0e0a3440bf 100644
--- a/engines/teenagent/scene.h
+++ b/engines/teenagent/scene.h
@@ -62,6 +62,7 @@ struct SceneEvent {
 		kEffect,
 		kFade,
 		kWait,
+		kSetFlag,
 		kQuit
 	} type;
 
@@ -133,7 +134,7 @@ public:
 
 	void warp(const Common::Point &point, byte orientation = 0);
 
-	void moveTo(const Common::Point &point, byte orientation = 0, bool validate = 0);
+	void moveTo(const Common::Point &point, byte orientation = 0, bool validate = false);
 	Common::Point getPosition() const { return position; }
 
 	void displayMessage(const Common::String &str, byte color = 0xd1, const Common::Point &pos = Common::Point());
-- 
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