basic collision detection

1 files changed, 27 insertions, 5 deletions

diff --git a/assets/javascripts/rectangles/engine/mover.js b/assets/javascripts/rectangles/engine/mover.js
index 90cabdd..5a1f7d9 100644
--- a/assets/javascripts/rectangles/engine/mover.js
+++ b/assets/javascripts/rectangles/engine/mover.js
@@ -13,13 +13,32 @@ var mover = new function(){
 	}
 	
 	base.update = function(pos){
-		if (base.room && base.room.rect.contains(pos.x, pos.z)) return;
+		cam.y = pos.y
 		
-		var intersects = []
-		clipper.rooms.forEach(function(r){
-			if (r.rect.contains(pos.x, pos.z)) {
-				intersects.push(r)
+		// if we were in a room
+		if (base.room) {
+			// check if we're still in the room
+			if (base.room.rect.contains(pos.x, pos.z)) {
+				cam.x = pos.x
+				cam.z = pos.z
+				return
 			}
+			// check if we've crossed one of the walls.. clamp position if so
+			var collision = base.room.collides(pos.x, pos.z)
+			if (collision) {
+				if (! (collision & LEFT || collision & RIGHT)) {
+					cam.x = pos.x
+				}
+				if (! (collision & FRONT || collision & BACK)) {
+					cam.z = pos.z
+				}
+				return
+			}
+		}
+		
+		// otherwise we've either entered into a new room, or broken free
+		var intersects = clipper.rooms.filter(function(r){
+			return r.rect.contains(pos.x, pos.z)
 		})
 		
 		$(".face.active").removeClass("active")
@@ -32,6 +51,9 @@ var mover = new function(){
 		else {
 			base.room = null
 		}
+
+				cam.x = pos.x
+				cam.z = pos.z
 	}
 
 }