public HealthPickup(Vector2 position, Tank tank)
{
player = tank;
healthSprite.PreLoad(ref PreLoadedTextures.HealthPickupTexture);
healthSprite.SetPosition(-healthSprite.Width * 1.5f, -healthSprite.Height / 2);
AddChild(healthSprite);
SetPosition(position.x, position.y);
collider = new BoxCollider(position, healthSprite.Width * 2, healthSprite.Height, 0);
}
public static SpriteObject AccelerateObject(SpriteObject obj, float acceleration, float dt)
{
var x = obj.GetPosition().X;
var y = obj.GetPosition().Y;
var dx = obj.GetVelocity().X;
var dy = obj.GetVelocity().Y;
var x2 = x + (dt * dx) + (acceleration * dt * dt * 0.5f);
var y2 = y + (dt * y) + (acceleration * dt * dt * 0.5f);
var dx2 = dx + (acceleration * dt) * (dx > 0 ? 1 : -1);
var dy2 = dy + (acceleration * dt) * (dy > 0 ? 1 : -1);
var newObj = new SpriteObject();
newObj.SetPosition(new Vector2(x2 - x, y2 - y));
newObj.SetVelocity(dx2, dy2);
newObj.SetStartPosition(new Vector2(x2, y2));
return(newObj); // need to return a position and velocity (not really a whole new sprite object)
}
public AmmoPickup(Vector2 position, Tank tank)
{
player = tank;
ammo1.PreLoad(ref PreLoadedTextures.AmmoPickupTexture);
ammo2.PreLoad(ref PreLoadedTextures.AmmoPickupTexture);
ammo3.PreLoad(ref PreLoadedTextures.AmmoPickupTexture);
ammo1.SetPosition(-ammo1.Width * 1.5f, -ammo1.Height / 2);
ammo2.SetPosition(-ammo2.Width / 2, -ammo2.Height / 2);
ammo3.SetPosition(ammo2.Width / 2, -ammo3.Height / 2);
AddChild(ammo1);
AddChild(ammo2);
AddChild(ammo3);
SetPosition(position.x, position.y);
collider = new BoxCollider(position, ammo1.Width * 2, ammo1.Height, 0);
}