From d7befe3a14be8f01d6d7288a6970358a4749368d Mon Sep 17 00:00:00 2001
From: Daniel Karbach <daniel.karbach@localhorst.tv>
Date: Fri, 5 Oct 2012 22:48:02 +0200
Subject: [PATCH] begun monster vicinity checking

---
 src/map/Entity.h     |  4 ++++
 src/map/MapState.cpp | 33 +++++++++++++++++++++++++++------
 src/map/MapState.h   |  2 ++
 3 files changed, 33 insertions(+), 6 deletions(-)

diff --git a/src/map/Entity.h b/src/map/Entity.h
index 92b1b7c..872ad0c 100644
--- a/src/map/Entity.h
+++ b/src/map/Entity.h
@@ -56,6 +56,10 @@ public:
 
 	void SetFlags(int f) { flags = f; }
 	bool Blocking() const { return !(flags & FLAG_NONBLOCKING); }
+	bool Hostile() const {
+		// NOTE: this is a stub for testing!
+		return Blocking();
+	}
 
 	Entity *Follower() { return follower; }
 	const Entity *Follower() const { return follower; }
diff --git a/src/map/MapState.cpp b/src/map/MapState.cpp
index 98e9b28..62e4802 100644
--- a/src/map/MapState.cpp
+++ b/src/map/MapState.cpp
@@ -179,12 +179,8 @@ bool MapState::CheckBlocking() const {
 
 void MapState::OnGridLock() {
 	LockEntities();
-	Trigger *trigger(map->TriggerAt(Vector<int>(controlled->Position())));
-	if (trigger) {
-		// TODO: run trigger
-	}
-	// TODO: check for adjacent monsters
-	// TODO: force all entities into their grid positions?
+	CheckMonster();
+	CheckTrigger();
 }
 
 void MapState::LockEntities() {
@@ -197,6 +193,31 @@ void MapState::LockEntities() {
 	}
 }
 
+void MapState::CheckMonster() {
+	Vector<int> coords(map->TileCoordinates(controlled->Position()));
+	Vector<int> neighbor[4];
+	neighbor[0] = Vector<int>(coords.X() - 1, coords.Y()); // W
+	neighbor[1] = Vector<int>(coords.X(), coords.Y() + 1); // S
+	neighbor[2] = Vector<int>(coords.X() + 1, coords.Y()); // E
+	neighbor[3] = Vector<int>(coords.X(), coords.Y() - 1); // N
+
+	for (int i(0); i < 4; ++i) {
+		for (std::vector<Entity *>::iterator e(entities.begin()), end(entities.end()); e != end; ++e) {
+			if ((*e)->Hostile() && map->TileCoordinates((*e)->Position()) == neighbor[i]) {
+				// remove entity, push battle state and transition and halt all other activity
+			}
+		}
+	}
+}
+
+void MapState::CheckTrigger() {
+	Trigger *trigger(map->TriggerAt(Vector<int>(controlled->Position())));
+	if (trigger) {
+		// TODO: run trigger
+	}
+
+}
+
 void MapState::OnMove(bool realMove) {
 	// TODO: evaluate monster movements
 	if (realMove) {
diff --git a/src/map/MapState.h b/src/map/MapState.h
index 371a881..e7a75b6 100644
--- a/src/map/MapState.h
+++ b/src/map/MapState.h
@@ -55,6 +55,8 @@ private:
 	void StopFollowers(Entity &);
 
 	void LockEntities();
+	void CheckMonster();
+	void CheckTrigger();
 
 private:
 	Map *map;
-- 
2.39.2