//Update world
void WorldManager::update() {
LogManager &l_m = LogManager::getInstance();
ObjectList allObjects = getAllObjects();
ObjectListIterator li = ObjectListIterator(&allObjects);
//Move objects with Velocity
li.first();
while (!li.isDone()) {
int x = li.currentObject()->getXVelocityStep();
int y = li.currentObject()->getYVelocityStep();
if (x != 0 || y != 0) {
Position old_position = li.currentObject()->getPos();
Position new_position = Position(old_position.getX() + x, old_position.getY() + y);
moveObject(li.currentObject(), new_position);
l_m.writeLog("Object moved");
}
li.next();
}
li.setList(&deletions);
//Delete all marked objects
li.first();
while (!li.isDone()) {
l_m.writeLog("updating object %d", li.currentObject()->getId());
delete(li.currentObject());
li.next();
}
//clear list for next update phase
deletions.clear();
}
/*
ask all objects to draw themselvs
*/
void WorldManager::draw(){
ObjectListIterator *li = new ObjectListIterator(&updates);
//for loop that enforeces drawing by alttitude
for (int alt = 0; alt < MAX_ALTTITUDE; alt++){
while (!li->isDone()){
if (li->currentObject()->getAltitude() == alt){
Object tmp_obj = *li->currentObject();
li->currentObject()->draw();
}
li->next();
}
li->first();
}
}
//Set view to center window on Object
//Set to NULL to stop following
//Return -1 on failure;
int WorldManager::setViewFollowing(Object *p_new_view_following) {
LogManager &l_m = LogManager::getInstance();
bool found = false;
//set to null to turn 'off' following
if (p_new_view_following == NULL) {
p_view_following = NULL;
}
ObjectListIterator li = ObjectListIterator(&updates);
//Delete all marked objects
li.first();
while (!li.isDone()) {
if (li.currentObject() == p_new_view_following)
found = true;
li.next();
}
if (!found) {
l_m.writeLog("WorldManager::SetViewFollowing() ERROR! Object not found.");
return -1;
}
p_view_following = p_new_view_following;
l_m.writeLog("p_new_view_following = %d", p_new_view_following->getId());
setViewPosition(p_view_following->getPos());
return 0;
}
//Return list of Objects collided with at Position "where"
//Collisions only with solid objects
//Does not consider if p_o is solid or not.
ObjectList WorldManager::isCollision(Object *p_o, Position where) {
Utility u;
//Make empty list
ObjectList collision_list;
ObjectListIterator li = ObjectListIterator(&updates);
li.first();
while (!li.isDone()) {
Object *p_temp_o = li.currentObject();
if (p_temp_o != p_o) {
//World position bounding box for object at where
Box b = u.getWorldBox(p_o, where);
//World position bounding box for other object
Box b_temp = u.getWorldBox(p_temp_o);
if (u.boxIntersectsBox(b, b_temp) && p_temp_o->isSolid()) {
collision_list.insert(p_temp_o); //Add object because of collision
} //No solid collision
} //Object cannot collide with itself
li.next();
}//End while
return collision_list;
}
/*
Move the object pointed to to postion where(in asc11 spaces)
*/
int WorldManager::moveObject(Object *p_o, Position where){
GraphicsManager &graphics_manager = GraphicsManager::getInstance();
if (p_o->isSolid()){ //collisions only matter for solid objects
bool doMove = true;
//Get collisions
ObjectList list = isCollision(p_o, where);
//if we have collided with something
if (!list.isEmpty()){
//Itereate accross list
ObjectListIterator li = ObjectListIterator(&list);
while (!li.isDone()){
Object *p_temp_o = li.currentObject();
//Create collision event
EventCollision collision(p_o, p_temp_o, where);
//send to both objects
p_o->eventHandler(&collision);
p_temp_o->eventHandler(&collision);
//if both objects are hard move fails
if (p_o->getSolidness() == HARD && p_temp_o->getSolidness() == HARD){
doMove = false;
}
li.next();
}// end iterator while
if (!doMove){
return -1;
}
}// end list is not empty ( no collision
}//Object not solid
p_o->setPosition(where);
//Check to see if moving out of bounds
if (where.getX() < 0
|| (where.getX() >= graphics_manager.getHorizontal())
|| where.getY() < 0
|| (where.getY() >= graphics_manager.getVertical())){
EventOut ov = EventOut();
p_o->eventHandler(&ov);
}
return 0;
}
void WorldManager::draw() {
ObjectList allObjects = getAllObjects();
ObjectListIterator li = ObjectListIterator(&allObjects);
Utility u = Utility();
for (int alt = 0; alt <= MAX_ALTITUDE; alt++) {
li.first();
while (!li.isDone()) {
if (li.currentObject()->getAltitude() == alt) {
//Bounding box coordinates are relative to Object
//so convert to world coordinates
Box temp_box = u.getWorldBox(li.currentObject());
if (u.boxIntersectsBox(temp_box, view)) {
li.currentObject()->draw();
}
}
li.next();
}
}
}
//Move Object
//If no collision with solid, move okay, else don't move
//If p_o is Spectral, move ok.
//Return 0 if move ok, else -1 if collision is solid
int WorldManager::moveObject(Object *p_o, Position where) {
if (p_o->isSolid()) { //Need to be solid for collisions
//Get Collisions
ObjectList list = isCollision(p_o, where);
if (!list.isEmpty()) {
boolean do_move = true; //Assume we can move
ObjectListIterator li = ObjectListIterator(&list);
li.first();
while (!li.isDone()) {
Object *p_temp_o = li.currentObject();
//Create Collision event
EventCollision c(p_o, p_temp_o, where);
//Send to both objects
p_o->eventHandler(&c);
p_temp_o->eventHandler(&c);
//If both Hard, then cannot move
if (p_o->getSolidness() == HARD && p_temp_o->getSolidness() == HARD)
do_move = false; //Can't move
//If object won't move onto soft objects, check for that
if (p_o->getNoSoft() && p_temp_o->getSolidness() == SOFT)
do_move = false;
li.next();
} //End while
if (do_move == false)
return -1;
}
}
//Get world bounds
GraphicsManager &gp_m = GraphicsManager::getInstance();
int maxHori = boundary.getHorizontal();
int maxVert = boundary.getVertical();
//Check if object is moving out of world
if ((p_o->getPos().getX() > 0)
&& (p_o->getPos().getX() < maxHori) // X is within bounds AND
&& (p_o->getPos().getY() > 0)
&& (p_o->getPos().getY() < maxVert) //Y is within bounds AND
&&
(where.getX() < 0
|| where.getX() > maxHori
|| where.getY() < 0
|| where.getY() > maxVert)) //Any part of new location is out of bounds
{
EventOut ov = EventOut();
p_o->eventHandler(&ov);
}
//No collision between 2 hard objects, so move object
p_o->setPos(where);
if (p_view_following == p_o)
setViewPosition(p_o->getPos());
return 0;
}