bool CheckBuildingCollision(Building building)
{
if (Vector3.Distance(building.Location, location) < 1400)
{
//Calculate shells location relative to the building
Vector3 loc = new Vector3(location.X - building.Location.X,
location.Y,
location.Z - building.Location.Z);
//Create an enlarged hitbox based on the shell's radius
Vector3 hitBox = new Vector3(building.Size.X + radius, building.Size.Y + radius, building.Size.Z + radius);
//Check to see if the shell passes through the buildings hitbox
if (CheckHitBoxCollision(hitBox, velocity, loc))
{
tankGame.Components.Remove(building);
return true;
}
}
return false;
}
/// <summary>
/// Checks if this tank is colliding with a building
/// </summary>
bool CheckBuildingCollision(Building building)
{
if (Vector3.Distance(building.Location, tankLocation) < 1300)
{
//relative location and rotation
float rot = totalRotation;
//Calculate tanks location relative to building
Vector2 loc = new Vector2((tankLocation.X - building.Location.X),
(tankLocation.Z - building.Location.Z));
//Calculate other tanks corners relative to this building
Vector2 topLeft = new Vector2(loc.X + tankSize.X * (float)Math.Cos(rot) + tankSize.Z * (float)Math.Sin(rot),
loc.Y + tankSize.Z * (float)Math.Cos(rot) - tankSize.X * (float)Math.Sin(rot));
Vector2 topRight = new Vector2(loc.X - tankSize.X * (float)Math.Cos(rot) + tankSize.Z * (float)Math.Sin(rot),
loc.Y + tankSize.Z * (float)Math.Cos(rot) + tankSize.X * (float)Math.Sin(rot));
Vector2 botLeft = new Vector2(loc.X + tankSize.X * (float)Math.Cos(rot) - tankSize.Z * (float)Math.Sin(rot),
loc.Y - tankSize.Z * (float)Math.Cos(rot) - tankSize.X * (float)Math.Sin(rot));
Vector2 botRight = new Vector2(loc.X - tankSize.X * (float)Math.Cos(rot) - tankSize.Z * (float)Math.Sin(rot),
loc.Y - tankSize.Z * (float)Math.Cos(rot) + tankSize.X * (float)Math.Sin(rot));
Vector2 hitBox = new Vector2(building.Size.X, building.Size.Z);
if (InsideRectangle(topLeft, hitBox) ||
InsideRectangle(topRight, hitBox) ||
InsideRectangle(botLeft, hitBox) ||
InsideRectangle(botRight, hitBox))
return true;
//Checks to see if this buildings corners are in the tank
else if (InsideTriangle(topLeft, topRight, botLeft, hitBox) ||
InsideTriangle(topLeft, topRight, botLeft, new Vector2(-hitBox.X, hitBox.Y)) ||
InsideTriangle(topLeft, topRight, botLeft, new Vector2(hitBox.X, -hitBox.Y)) ||
InsideTriangle(topLeft, topRight, botLeft, new Vector2(-hitBox.X, -hitBox.Y)) ||
InsideTriangle(botRight, topRight, botLeft, hitBox) ||
InsideTriangle(botRight, topRight, botLeft, new Vector2(-hitBox.X, hitBox.Y)) ||
InsideTriangle(botRight, topRight, botLeft, new Vector2(hitBox.X, -hitBox.Y)) ||
InsideTriangle(botRight, topRight, botLeft, new Vector2(-hitBox.X, -hitBox.Y)))
return true;
}
return false;
}
/// <summary>
/// Allows the game to perform any initialization it needs to before starting to run.
/// This is where it can query for any required services and load any non-graphic
/// related content. Calling base.Initialize will enumerate through any components
/// and initialize them as well.
/// </summary>
protected override void Initialize()
{
//Initialize Input
input = new GameServices.InputState();
input.Update();
Services.AddService(typeof(GameServices.InputState), input);
//create camera
camera = new GameServices.CameraState(
MathHelper.PiOver4,
(float)graphics.GraphicsDevice.Viewport.Width / (float)graphics.GraphicsDevice.Viewport.Height,
1.0f,
100000.0f);
Services.AddService(typeof(GameServices.CameraState), camera);
//create audip
audio = new GameServices.AudioLibrary();
audio.InitializeAudio();
Services.AddService(typeof(GameServices.AudioLibrary), audio);
//create tanks
playerTank = new Objects.Tank(this, new Vector3(0, 0, 0));
playerTank.Health = 10;
playerTank.AI = false;
Components.Add(playerTank);
//buildings
buildings = new List<List<Objects.Building>>();
List<Objects.Building> listception = new List<Objects.Building>();
Objects.Building build;
for (int i = 1; i <= worldsize.Y / 3000; i++)
{
for (int j = 1; j <= worldsize.X / 3000; j++)
{
build = new Objects.Building(this, new Vector3(i * 3000 + 435 - worldsize.Y / 2, 0, j * 3000 + 435 - worldsize.X / 2));
build.Enabled = false;
Components.Add(build);
}
}
Random x = new Random();
int n = x.Next(5, 50);
Objects.Tank tank;
for (int i = 0; i < n; i++)
{
do
tank = new Objects.Tank(this, new Vector3(x.Next(-15, 16) * 3000, 0, x.Next(-15, 16) * 3000));
while (tank.CollisionDetection());
Components.Add(tank);
}
camera.Update(playerTank.Location, playerTank.TurretRotation);
GenerateGround(worldsize.X, worldsize.Y);
base.Initialize();
}
