From 36959697e257081cccce666d1654e57efbfa3a63 Mon Sep 17 00:00:00 2001
From: weiss <weiss@84d2e878-0bd5-11dd-ad15-13eda11d74c5>
Date: Sat, 19 Jul 2008 14:18:07 +0000
Subject: Calculate collision with objects outside the current room

git-svn-id: svn://cook.msm.cam.ac.uk:745/thrust3d/thrust3d@146 84d2e878-0bd5-11dd-ad15-13eda11d74c5
---
 src/physics.c | 33 +++++++++++++++++++++------------
 1 file changed, 21 insertions(+), 12 deletions(-)

diff --git a/src/physics.c b/src/physics.c
index 75113c1..8352e84 100644
--- a/src/physics.c
+++ b/src/physics.c
@@ -125,7 +125,7 @@ int physics_will_collide_face(double sx, double sy, double sz, double vx, double
 
 /* Check for collision with all faces in a primitive */
 static int physics_check_collide_all_faces(ModelInstance *obj, ModelInstance *other, double dt, int a,
-						double sx, double sy, double sz, CollisionSpec *coll) {
+						double sx, double sy, double sz, CollisionSpec *coll, Room *room, Game *game) {
 
 	int found = 0;
 	
@@ -153,6 +153,9 @@ static int physics_check_collide_all_faces(ModelInstance *obj, ModelInstance *ot
 					face[3*q + 0] = other->x + other->model->primitives[a]->vertices[3*((4*f)+q) + 0];
 					face[3*q + 1] = other->y + other->model->primitives[a]->vertices[3*((4*f)+q) + 1];
 					face[3*q + 2] = other->z + other->model->primitives[a]->vertices[3*((4*f)+q) + 2];
+					face[3*q + 0] += 10.0*(room->rx - game->cur_room_x);
+					face[3*q + 1] += 10.0*(room->ry - game->cur_room_y);
+					face[3*q + 2] += 10.0*(room->rz - game->cur_room_z);
 				}
 				
 				if ( physics_will_collide_face(obj->x+sx, obj->y+sy, obj->z+sz, obj->vx, obj->vy, obj->vz,
@@ -184,7 +187,7 @@ static int physics_check_collide_all_faces(ModelInstance *obj, ModelInstance *ot
 }
 
 /* Return non-zero if 'obj' will collide with 'other' within 'dt' milliseconds */
-static int physics_check_collide(ModelInstance *obj, ModelInstance *other, double dt, CollisionSpec *coll) {
+static int physics_check_collide(ModelInstance *obj, ModelInstance *other, double dt, CollisionSpec *coll, Room *room, Game *game) {
 
 	int i;
 	int found = 0;
@@ -203,7 +206,7 @@ static int physics_check_collide(ModelInstance *obj, ModelInstance *other, doubl
 			
 			/* ...against all primitives in the static object */
 			for ( a=0; a<other->model->num_primitives; a++ ) {
-				if ( physics_check_collide_all_faces(obj, other, dt, a, sx, sy, sz, coll) ) {
+				if ( physics_check_collide_all_faces(obj, other, dt, a, sx, sy, sz, coll, room, game) ) {
 					found = 1;
 				}
 			}
@@ -218,21 +221,27 @@ static int physics_check_collide(ModelInstance *obj, ModelInstance *other, doubl
 /* Find the earliest collision for 'obj'.  Fill out 'coll' and return 1 if any */
 static int physics_find_earliest_collision(ModelInstance *obj, Game *game, double dt, CollisionSpec *coll) {
 
-	Room *room;
 	int found = 0;
+	int i;
 	
 	/* Consider only the current room, for now */
-	room = game_find_room(game, game->cur_room_x, game->cur_room_y, game->cur_room_z);
-	if ( room != NULL ) {
+	for ( i=0; i<game->num_rooms; i++ ) {
 		
-		/* Check for collision of this object with all other objects in the room */
-		int j;
-		for ( j=0; j<room->num_objects; j++ ) {
-			if ( physics_check_collide(obj, room->objects[j], dt, coll) ) {
-				found = 1;
+		Room *room;
+		
+		room = game->rooms[i];
+		
+		if ( room != NULL ) {
+		
+			/* Check for collision of this object with all other objects in the room */
+			int j;
+			for ( j=0; j<room->num_objects; j++ ) {
+				if ( physics_check_collide(obj, room->objects[j], dt, coll, room, game) ) {
+					found = 1;
+				}
 			}
-		}
 		
+		}
 	}
 
 	return found;
-- 
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