df::Position df::Position::getNextAdjacentPosition(df::Position to){
int delta_x = abs(to.getX() - this->getX());
int delta_y = abs(to.getY() - this->getY());
if (delta_x > delta_y){
if (to.getX() > this->getX())
return df::Position(this->getX() + 1, this->getY());
else
return df::Position(this->getX() - 1, this->getY());
}
else if(delta_x < delta_y){
if (to.getY() > this->getY())
return df::Position(this->getX(), this->getY() + 1);
else
return df::Position(this->getX(), this->getY() - 1);
}
else if (delta_x != 0){
if (to.getX() > this->getX())
return df::Position(this->getX() + 1, this->getY());
else
return df::Position(this->getX() - 1, this->getY());
}
else{
return (*this);
}
}
Bullet::Bullet(df::Position hero_pos) {
// Set object properties.
setType("Bullet");
setXVelocity(1); // move 1 space right every frame
// Set starting location, based on hero's position passed in.
df::Position pos(hero_pos.getX()+3, hero_pos.getY());
setPosition(pos);
}
// Fire bullet towards target.
void Hero::fire(df::Position target) {
// See if time to fire.
if (fire_countdown > 0)
return;
fire_countdown = fire_slowdown;
// Fire Bullet towards target.
df::Bullet *p = new df::Bullet(getPosition());
p->setYVelocity((float) (target.getY() - getPosition().getY()) /
(float) (target.getX() - getPosition().getX()));
}
int Weapon::setWeaponPosition(df::Position pos, Direction direction) {
df::WorldManager &wm = df::WorldManager::getInstance();
if (direction == NORTH) {
df::Position new_pos = df::Position(pos.getX() + 1, pos.getY() - 2);
setSpriteIndex(0);
wm.moveObject(this, new_pos);
return 0;
}
if (direction == EAST) {
df::Position new_pos = df::Position(pos.getX() + 3, pos.getY());
setSpriteIndex(1);
wm.moveObject(this, new_pos);
return 0;
}
if (direction == SOUTH) {
df::Position new_pos = df::Position(pos.getX() + 1, pos.getY() + 3);
setSpriteIndex(2);
wm.moveObject(this, new_pos);
return 0;
}
if (direction == WEST) {
df::Position new_pos = df::Position(pos.getX() - 2, pos.getY());
setSpriteIndex(3);
wm.moveObject(this, new_pos);
return 0;
}
return -1;
}
// Fire bullet towards target.
void Hero::fire(df::Position target) {
// See if time to fire.
if (fire_countdown > 0)
return;
fire_countdown = fire_slowdown;
// Fire Bullet towards target.
df::Position *pos = new df::Position(getPosition().getX(), getPosition().getY());
Bullet *p = new Bullet(*pos);
p->setYVelocity((float) (target.getY() - getPosition().getY()) /
(float) (target.getX() - getPosition().getX()));
// Play "fire" sound.
df::Sound *p_sound = df::ResourceManager::getInstance().getSound("fire");
p_sound->play();
}
// get manhattan distance of positions
int df::Position::getManhattanDistance(df::Position pos){
return abs(pos.getX() - getX()) + abs(pos.getY() - getY());
}
// return if positions are equal to each other
bool df::Position::equalTo(df::Position pos){
if (this->getX() == pos.getX() && this->getY() == pos.getY()){
return true;
}
return false;
}