private void Collision()
{
//Check if its out of bounds
if (!CollisionFuncs.PointAABBcolliding(global.point, GameManager.screenBox))
{
//Destroy the bullet
FreeMemory();
return;
}
//Go through all core objects and check for collision with tanks
foreach (GameObject obj in GameManager.coreObjects)
{
if (obj.tag != "Tank")
{
//We only want to collide with tanks
continue;
}
//Cast to tank and get AABB
TankClass tank = obj as TankClass;
AABB tankAABB = CollisionFuncs.OBBtoAABB(tank.collider);
//Check AABB first, then OBB
if (CollisionFuncs.PointAABBcolliding(global.point, tankAABB))
{
//If they are colliding, check OBB collision
if (CollisionFuncs.PointOBBcolliding(global.point, tank.collider))
{
tank.Hit();
//Enter 'smoke mode' to display an explosion for a short time before destroying itself
hasHit = true;
image = rl.Raylib.LoadTexture(GameManager.imageDir + @"Smoke\smokeOrange0.png");
//Update image based values
imgSize = new rl.Vector2(image.width, image.height);
sourceRec = new rl.Rectangle(0f, 0f, imgSize.x, imgSize.y);
origin = imgSize / 2;
return;
}
}
}
}
private static void StartGame()
{
//Create tank object and set its location
rl.Image img = rl.Raylib.LoadImage(imageDir + @"Tanks\tankBlue.png");
GameObject tank = new TankClass(null, img, 5, 25, 80, "p1", new rl.KeyboardKey[4] {
rl.KeyboardKey.KEY_W, rl.KeyboardKey.KEY_S, rl.KeyboardKey.KEY_A, rl.KeyboardKey.KEY_D
});
rl.Raylib.UnloadImage(img);
tank.SetLocation(rl.Raylib.GetScreenWidth() * 0.3f, rl.Raylib.GetScreenHeight() * 0.5f);
//Create turret object as a child of tank
img = rl.Raylib.LoadImage(imageDir + @"fish_blue.png");
rl.Raylib.ImageRotateCCW(ref img);
new TurretClass(tank, img, 100, @"Bullets\bulletBlue.png", new rl.KeyboardKey[3] {
rl.KeyboardKey.KEY_Q, rl.KeyboardKey.KEY_E, rl.KeyboardKey.KEY_SPACE
});
rl.Raylib.UnloadImage(img);
//Create a second tank with different controls
img = rl.Raylib.LoadImage(imageDir + @"Tanks\tankRed.png");
tank = new TankClass(null, img, 5, 25, 80, "p2", new rl.KeyboardKey[4] {
rl.KeyboardKey.KEY_I, rl.KeyboardKey.KEY_K, rl.KeyboardKey.KEY_J, rl.KeyboardKey.KEY_L
});
rl.Raylib.UnloadImage(img);
tank.SetLocation(rl.Raylib.GetScreenWidth() * 0.7f, rl.Raylib.GetScreenHeight() * 0.5f);
img = rl.Raylib.LoadImage(imageDir + @"fish_orange.png");
rl.Raylib.ImageRotateCCW(ref img);
new TurretClass(tank, img, 100, @"Bullets\bulletRed.png", new rl.KeyboardKey[3] {
rl.KeyboardKey.KEY_U, rl.KeyboardKey.KEY_O, rl.KeyboardKey.KEY_N
});
rl.Raylib.UnloadImage(img);
//Display controls
Console.WriteLine("\n\n");
Console.WriteLine("Player 1 moves with WASD, aims with QE and fires with SPACE");
Console.WriteLine("Player 2 moves with IJKL, aims with UO and fires with N");
}
private void Collision()
{
//Update collider location and rotation
UpdateColliderLoc();
//Rotation matrix of the difference in rotation
MthLib.Matrix3 rotMatrix = new MthLib.Matrix3();
rotMatrix.SetRotateZ((local.rotation - global.rotation) * (float)(Math.PI / 180f));
//Rotate the extents, then put them back in the matrix
MthLib.Vector3 x = new MthLib.Vector3(collider.m1, collider.m4, 0);
x = rotMatrix * x;
collider.m1 = x.x;
collider.m4 = x.y;
MthLib.Vector3 y = new MthLib.Vector3(collider.m2, collider.m5, 0);
y = rotMatrix * y;
collider.m2 = y.x;
collider.m5 = y.y;
//Get an AABB for rough collision before using OBB
AABB aabb = CollisionFuncs.OBBtoAABB(collider);
//Check if going out of bounds. Because the tank needs to stay inside, just AABB needs to be tested
if (!CollisionFuncs.AABBwithin(aabb, GameManager.screenBox))
{
//Tank is out of bounds; reset transform
local = global;
return;
}
//Go through all core objects and check for collision with other tanks
foreach (GameObject obj in GameManager.coreObjects)
{
//If it isnt a tank, move on
if (obj.tag != "Tank")
{
continue;
}
TankClass tank = obj as TankClass;
//If the tank is this tank, move on
if (tank == this)
{
continue;
}
//At this point, the tank must be a different tank, so it can be collided with
//The collider is OBB, so it needs to be made an AABB
AABB otherAABB = CollisionFuncs.OBBtoAABB(tank.collider);
if (CollisionFuncs.AABBcolliding(aabb, otherAABB))
{
//If they are colliding, check OBB collision
if (CollisionFuncs.OBBcolliding(collider, tank.collider))
{
//They are colliding, so reset transform
local = global;
return;
}
}
}
}