public Terrain(Scene scene)
{
_scene = scene;
// We load the materials, the ones in this example only use built in techniques, we use diffuse for the ground for performance
_surfaceMaterial = Cache.Get <Material>("Materials/UnlitAlpha.xml");
_surfaceMaterial.SetTexture(0, Cache.Get <Texture2D>("Scenarios/grasslands/surface.png"));
_chunkMaterial = Cache.Get <Material>("Materials/Unlit.xml");
_chunkMaterial.SetTexture(0, Cache.Get <Texture2D>("Scenarios/grasslands/ground.png"));
// We create and populate a library with the decorations
Func <string, Sprite2D> GetSprite = file => Cache.Get <Sprite2D>($"Scenarios/grasslands/Object/{file}");
_decorationLib = new DecorationLibrary <Sprite2D>(
new [] { GetSprite("Bush (1).png"), GetSprite("Bush (2).png"), GetSprite("Bush (3).png"), GetSprite("Bush (4).png") },
new [] { GetSprite("Mushroom_1.png"), GetSprite("Mushroom_2.png"), GetSprite("Stone.png"), GetSprite("Sign_2.png") },
new [] { GetSprite("Tree_1.png"), GetSprite("Tree_2.png"), GetSprite("Tree_3.png") }
);
// We setup the hotstop/origin of each sprite to be next to its bottom
foreach (Sprite2D sprite in _decorationLib.GetAllResources())
{
sprite.SetHotSpot(new Vector2(0.5f, 0.1f));
}
// We generate the chunks and add some boxes randomly
Sprite2D crateSprite = Cache.Get <Sprite2D>("Scenarios/grasslands/Object/Crate.png");
for (int i = 0; i < Chunksize * chunksToGenerate; i += Chunksize)
{
GenerateChunk(i);
// Crates
if (_rng.Next(100) < PercentageOfChunksWithCrates)
{
Node crateNode = AtomicMain.CreateSpriteNode(crateSprite, 3);
crateNode.SetPosition(new Vector3(i + _rng.Next(8), 20, -5));
CollisionBox2D crateCollider = crateNode.CreateComponent <CollisionBox2D>();
crateCollider.SetSize(0.76f, 0.76f);
crateCollider.SetDensity(1.0f);
crateCollider.SetRestitution(0.6f);
crateCollider.SetFriction(0.4f);
}
}
}
void CreateScene()
{
scene = new Scene();
scene.CreateComponent <Octree>();
scene.CreateComponent <DebugRenderer>();
// Create camera node
CameraNode = scene.CreateChild("Camera");
// Set camera's position
CameraNode.Position = new Vector3(0.0f, 5.0f, -10.0f);
Camera camera = CameraNode.CreateComponent <Camera>();
camera.Orthographic = true;
var graphics = Graphics;
camera.OrthoSize = graphics.Height * 0.05f;
camera.Zoom = 1.5f * Math.Min(graphics.Width / 1280.0f, graphics.Height / 800.0f); // Set zoom according to user's resolution to ensure full visibility (initial zoom (1.5) is set for full visibility at 1280x800 resolution)
// Create 2D physics world component
PhysicsWorld2D physicsWorld = scene.CreateComponent <PhysicsWorld2D>();
physicsWorld.DrawJoint = (true);
// Create ground
Node groundNode = scene.CreateChild("Ground");
// Create 2D rigid body for gound
RigidBody2D groundBody = groundNode.CreateComponent <RigidBody2D>();
// Create edge collider for ground
CollisionEdge2D groundShape = groundNode.CreateComponent <CollisionEdge2D>();
groundShape.SetVertices(new Vector2(-40.0f, 0.0f), new Vector2(40.0f, 0.0f));
const float y = 15.0f;
RigidBody2D prevBody = groundBody;
for (uint i = 0; i < NumObjects; ++i)
{
Node node = scene.CreateChild("RigidBody");
// Create rigid body
RigidBody2D body = node.CreateComponent <RigidBody2D>();
body.BodyType = BodyType2D.Dynamic;
// Create box
CollisionBox2D box = node.CreateComponent <CollisionBox2D>();
// Set friction
box.Friction = 0.2f;
// Set mask bits.
box.MaskBits = 0xFFFF & ~0x0002;
if (i == NumObjects - 1)
{
node.Position = new Vector3(1.0f * i, y, 0.0f);
body.AngularDamping = 0.4f;
box.SetSize(3.0f, 3.0f);
box.Density = 100.0f;
box.CategoryBits = 0x0002;
}
else
{
node.Position = new Vector3(0.5f + 1.0f * i, y, 0.0f);
box.SetSize(1.0f, 0.25f);
box.Density = 20.0f;
box.CategoryBits = 0x0001;
}
ConstraintRevolute2D joint = node.CreateComponent <ConstraintRevolute2D>();
joint.OtherBody = prevBody;
joint.Anchor = new Vector2(i, y);
joint.CollideConnected = false;
prevBody = body;
}
ConstraintRope2D constraintRope = groundNode.CreateComponent <ConstraintRope2D>();
constraintRope.OtherBody = prevBody;
constraintRope.OwnerBodyAnchor = new Vector2(0.0f, y);
constraintRope.MaxLength = NumObjects - 1.0f + 0.01f;
}