public void run()
{
/* At first, we let the user select the driver type,
* then start up the engine, set a caption, and get a
* pointer to the video driver.
*/
// ask user for driver
DriverType driverType;
// Ask user to select driver:
StringBuilder sb = new StringBuilder();
sb.Append("Please select the driver you want for this example:\n");
sb.Append("\n(a) Direct3D 9.0c\n(b) Direct3D 8.1\n(c) OpenGL 1.5");
sb.Append("\n(d) Software Renderer\n(e) Apfelbaum Software Renderer");
sb.Append("\n(f) Null Device\n(otherKey) exit\n\n");
// Get the user's input:
TextReader tIn = Console.In;
TextWriter tOut = Console.Out;
tOut.Write(sb.ToString());
string input = tIn.ReadLine();
// Select device based on user's input:
switch (input)
{
case "a":
driverType = DriverType.DIRECT3D9;
break;
case "b":
driverType = DriverType.DIRECT3D8;
break;
case "c":
driverType = DriverType.OPENGL;
break;
case "d":
driverType = DriverType.SOFTWARE;
break;
case "e":
driverType = DriverType.SOFTWARE2;
break;
case "f":
driverType = DriverType.NULL_DRIVER;
break;
default:
return;
}
// Create device and exit if creation fails:
device = new IrrlichtDevice(driverType, new Dimension2D(1024, 768), 32, false, true, true);
if (device == null)
{
tOut.Write("Device creation failed.");
return;
}
/*
* Get a pointer to the video driver and the SceneManager so that
* we do not always have to write device->getVideoDriver() and
* device->getSceneManager().
*/
ISceneManager smgr = device.SceneManager;
IVideoDriver driver = device.VideoDriver;
device.FileSystem.AddZipFileArchive(path + "map-20kdm2.pk3");
IAnimatedMesh q3levelmesh = smgr.GetMesh("20kdm2.bsp");
ISceneNode q3node = null;
if (q3levelmesh != null)
{
q3node = smgr.AddOctTreeSceneNode(q3levelmesh.GetMesh(0), null, 0);
}
/*So far so good, we've loaded the quake 3 level like in tutorial 2.
* Now, here comes something different: We create a triangle selector. A
* triangle selector is a class which can fetch the triangles from scene
* nodes for doing different things with them, for example collision
* detection. There are different triangle selectors, and all can be
* created with the ISceneManager. In this example, we create an
* OctTreeTriangleSelector, which optimizes the triangle output a little
* bit by reducing it like an octree. This is very useful for huge meshes
* like quake 3 levels.
* After we created the triangle selector, we attach it to the q3node.
* This is not necessary, but in this way, we do not need to care for the
* selector, for example dropping it after we do not need it anymore.*/
ITriangleSelector selector = null;
if (q3node != null)
{
q3node.Position = new Vector3D(-1370, -130, -1400);
selector = smgr.CreateOctTreeTriangleSelector(
q3levelmesh.GetMesh(0), q3node, 128);
// not implemented but not necessary
//q3node.TriangleSelector=selector;
}
/*We add a first person shooter camera to the scene for being able to move in
* the quake 3 level like in tutorial 2. But this, time, we add a special
* animator to the camera: A Collision Response animator. This thing modifies
* the scene node to which it is attached to in that way, that it may no
* more move through walls and is affected by gravity. The only thing we have
* to tell the animator is how the world looks like, how big the scene node is,
* how gravity and so on. After the collision response animator is attached to
* the camera, we do not have to do anything more for collision detection,
* anything is done automaticly, all other collision detection code below is
* for picking. And please note another cool feature: The collsion response
* animator can be attached also to all other scene nodes, not only to cameras.
* And it can be mixed with other scene node animators. In this way, collision
* detection and response in the Irrlicht engine is really, really easy.
* Now we'll take a closer look on the parameters of
* createCollisionResponseAnimator(). The first parameter is the TriangleSelector,
* which specifies how the world, against collision detection is done looks like.
* The second parameter is the scene node, which is the object, which is affected
* by collision detection, in our case it is the camera. The third defines how big
* the object is, it is the radius of an ellipsoid. Try it out and change the radius
* to smaller values, the camera will be able to move closer to walls after this.
* The next parameter is the direction and speed of gravity. You could set it to
* (0,0,0) to disable gravity. And the last value is just a translation: Without
* this, the ellipsoid with which collision detection is done would be around
* the camera, and the camera would be in the middle of the ellipsoid. But as
* human beings, we are used to have our eyes on top of the body, with which
* we collide with our world, not in the middle of it. So we place the scene
* node 50 units over the center of the ellipsoid with this parameter. And
* that's it, collision detection works now.
*/
ICameraSceneNode camera = smgr.AddCameraSceneNodeFPS(null, 100, 300, 0);
camera.Position = new Vector3D(-100, 50, -150);
ISceneNodeAnimator anim = smgr.CreateCollisionResponseAnimator(
selector, camera, new Vector3D(30, 50, 30),
new Vector3D(0, -3, 0), new Vector3D(0, 50, 0), 0);
camera.AddAnimator(anim);
/*Because collision detection is no big deal in irrlicht, I'll describe how
* to do two different types of picking in the next section. But before this,
* I'll prepare the scene a little. I need three animated characters which we
* could pick later, a dynamic light for lighting them, a billboard for drawing
* where we found an intersection, and, yes, I need to get rid of this mouse
* cursor. :)*/
//disable mouse cursor
device.CursorControl.Visible = false;
// add billboard
IBillboardSceneNode bill = smgr.AddBillboardSceneNode(
null, new Dimension2Df(20, 20), new Vector3D(), 0);
bill.SetMaterialType(MaterialType.TRANSPARENT_ADD_COLOR);
bill.SetMaterialTexture(0, driver.GetTexture(
path + "particle.bmp"));
bill.SetMaterialFlag(MaterialFlag.LIGHTING, false);
bill.SetMaterialFlag(MaterialFlag.ZBUFFER, false);
Material material = new Material();
material.Texture1 = driver.GetTexture(
path + "faerie2.bmp");
material.Lighting = true;
IAnimatedMeshSceneNode node = null;
IAnimatedMesh faerie = smgr.GetMesh(
path + "faerie.md2");
if (faerie != null)
{
node = smgr.AddAnimatedMeshSceneNode(faerie, null, 0);
node.Position = new Vector3D(-70, 0, -90);
node.SetMD2Animation(MD2AnimationType.RUN);
node.SetMaterial(0, material);
node = smgr.AddAnimatedMeshSceneNode(faerie, null, 0);
node.Position = new Vector3D(-70, 0, -30);
node.SetMD2Animation(MD2AnimationType.SALUTE);
node.SetMaterial(0, material);
node = smgr.AddAnimatedMeshSceneNode(faerie, null, 0);
node.Position = new Vector3D(-70, 0, -60);
node.SetMD2Animation(MD2AnimationType.JUMP);
node.SetMaterial(0, material);
}
material.Texture1 = null;
material.Lighting = false;
//Add a light
smgr.AddLightSceneNode(null, new Vector3D(-60, 100, 400),
new Colorf(1.0f, 1.0f, 1.0f, 1.0f), 600, 0);
/*For not making it too complicated, I'm doing picking inside the drawing
* loop. We take two pointers for storing the current and the last selected
* scene node and start the loop.*/
ISceneNode selectedSceneNode = null;
ISceneNode lastSelectedSceneNode = null;
int lastFPS = -1;
while (device.Run())
{
if (device.WindowActive)
{
device.VideoDriver.BeginScene(true, true, new Color(0, 200, 200, 200));
device.SceneManager.DrawAll();
/*After we've drawn the whole scene whit smgr->drawAll(), we'll do the
* first picking: We want to know which triangle of the world we are
* looking at. In addition, we want the exact point of the quake 3
* level we are looking at. For this, we create a 3d line starting at
* the position of the camera and going through the lookAt-target of it.
* Then we ask the collision manager if this line collides with a
* triangle of the world stored in the triangle selector. If yes, we draw
* the 3d triangle and set the position of the billboard to the intersection
* point.*/
Line3D line = new Line3D();
line.start = camera.Position;
line.end = line.start +
(camera.Target - line.start).Normalize() * 1000;
Vector3D intersection;
Triangle3D tri;
if (smgr.SceneCollisionManager.GetCollisionPoint(
line, selector, out intersection, out tri))
{
bill.Position = intersection;
driver.SetTransform(TransformationState.WORLD, new Matrix4());
driver.SetMaterial(material);
driver.Draw3DTriangle(tri, new Color(0, 255, 0, 0));
}
/*Another type of picking supported by the Irrlicht Engine is scene node
* picking based on bouding boxes. Every scene node has got a bounding box,
* and because of that, it's very fast for example to get the scene node
* which the camera looks at. Again, we ask the collision manager for this,
* and if we've got a scene node, we highlight it by disabling Lighting in
* its material, if it is not the billboard or the quake 3 level.*/
selectedSceneNode = smgr.SceneCollisionManager.
GetSceneNodeFromCameraBB(camera, 0);
if (lastSelectedSceneNode != null)
{
lastSelectedSceneNode.SetMaterialFlag(
MaterialFlag.LIGHTING, true);
}
if (selectedSceneNode == q3node ||
selectedSceneNode == bill)
{
selectedSceneNode = null;
}
if (selectedSceneNode != null)
{
selectedSceneNode.SetMaterialFlag(
MaterialFlag.LIGHTING, false);
}
lastSelectedSceneNode = selectedSceneNode;
/*That's it, we just have to finish drawing.*/
driver.EndScene();
int fps = device.VideoDriver.FPS;
if (lastFPS != fps)
{
device.WindowCaption = "Irrlicht Engine - Quake 3 Map example [" +
device.VideoDriver.Name + "] FPS:" + fps.ToString();
lastFPS = fps;
}
}
}
/*
* In the end, delete the Irrlicht device.
*/
// Instead of device->drop, we'll use:
GC.Collect();
}
public void runIndoorTest()
{
device = new IrrlichtDevice(SelectedDriverType,
new Dimension2D(800, 600), 16, false, true, false);
device.EventReceiver = this;
device.ResizeAble = true;
device.WindowCaption = "Irrlicht.NET indoor test";
// load some textures and meshes
ITexture texSydney = device.VideoDriver.GetTexture(@"..\..\media\sydney.bmp");
ITexture texWall = device.VideoDriver.GetTexture(@"..\..\media\wall.jpg");
ITexture texLogo = device.VideoDriver.GetTexture(@"..\..\media\irrlichtlogoaligned.jpg");
Irrlicht.Scene.IAnimatedMesh mesh =
device.SceneManager.GetMesh(@"..\..\media\sydney.md2");
if (mesh == null)
{
System.Windows.Forms.MessageBox.Show(
@"Could not load mesh ..\..\media\sydney.md2, exiting.",
"Problem starting program");
return;
}
// add a cube to the scene
ISceneNode node = device.SceneManager.AddCubeSceneNode(15,
null, -1, new Vector3D(30, -15, 0));
node.SetMaterialTexture(0, texWall);
node.SetMaterialFlag(Irrlicht.Video.MaterialFlag.LIGHTING, false);
// add an animator to the cube to make it rotate
ISceneNodeAnimator anim = device.SceneManager.CreateRotationAnimator(new Vector3D(0.2f, 0.2f, 0));
node.AddAnimator(anim);
// add animated mesh
IAnimatedMeshSceneNode anode = device.SceneManager.AddAnimatedMeshSceneNode(mesh, null, -1);
anode.SetMaterialTexture(0, texSydney);
anode.SetMaterialFlag(MaterialFlag.LIGHTING, false);
anode.Scale = new Vector3D(2, 2, 2);
anode.Position = new Vector3D(0, -20, 0);
// add a shadow
Shadow = anode.AddShadowVolumeSceneNode();
if (Shadow != null)
{
Shadow.Visible = false;
}
// where no light there no shadow
device.SceneManager.AddLightSceneNode(null, new Vector3D(20, 100, -50),
new Colorf(255, 0, 0), 200, -1);
// add quake 3 level
device.FileSystem.AddZipFileArchive("../../media/map-20kdm2.pk3");
IAnimatedMesh q3levelmesh = device.SceneManager.GetMesh("20kdm2.bsp");
ISceneNode q3node = device.SceneManager.AddOctTreeSceneNode(q3levelmesh, null, -1);
q3node.Position = new Vector3D(-1370, -130, -1400);
// create octtree triangle selector for q3 mesh
ITriangleSelector selector = device.SceneManager.CreateOctTreeTriangleSelector(
q3levelmesh.GetMesh(0), q3node, 128);
// add billboard
IBillboardSceneNode bill = device.SceneManager.AddBillboardSceneNode(null,
new Dimension2Df(20, 20), new Vector3D(0, 0, 0), -1);
bill.SetMaterialType(MaterialType.TRANSPARENT_ADD_COLOR);
bill.SetMaterialTexture(0, device.VideoDriver.GetTexture("../../media/particle.bmp"));
bill.SetMaterialFlag(MaterialFlag.LIGHTING, false);
bill.SetMaterialFlag(MaterialFlag.ZBUFFER, false);
// create camera
ICameraSceneNode cam =
device.SceneManager.AddCameraSceneNodeFPS(null, 100, 300, -1);
cam.Position = new Vector3D(20, 300, -50);
// make cursor invisible
device.CursorControl.Visible = false;
// create collision animator and add it to the camera
ISceneNodeAnimator collAnim = device.SceneManager.CreateCollisionResponseAnimator(
selector, cam,
new Vector3D(30, 50, 30), // size of ellipsoid around camera
new Vector3D(0, -3, 0), // gravity
new Vector3D(0, 50, 0), // translation
0.0005f); // sliding value
cam.AddAnimator(collAnim);
// load some font and set it into the skin
IGUIFont font = device.GUIEnvironment.GetFont("../../media/fonthaettenschweiler.bmp");
device.GUIEnvironment.Skin.Font = font;
// add some gui stuff
device.GUIEnvironment.AddMessageBox("Hello World",
"I'm a Irrlicht.NET MessageBox. Please press SPACE to close me.", true,
MessageBoxFlag.OK | MessageBoxFlag.CANCEL, null, -1);
// start drawing loop
int fps = 0;
while (device.Run())
{
if (device.WindowActive)
{
device.VideoDriver.BeginScene(true, true, new Color(255, 0, 0, 50));
// draw scene
device.SceneManager.DrawAll();
device.GUIEnvironment.DrawAll();
// do some collision testing
Line3D line = new Line3D();
line.start = cam.Position;
line.end = ((cam.Target - line.start).Normalize() * 1000.0f) + line.start;
Vector3D intersection = new Vector3D();
Triangle3D tri = new Triangle3D();
if (device.SceneManager.SceneCollisionManager.GetCollisionPoint(
line, selector, out intersection, out tri))
{
bill.Position = intersection;
Material mat = new Material();
mat.Lighting = false;
device.VideoDriver.SetTransform(TransformationState.WORLD, new Matrix4());
device.VideoDriver.SetMaterial(mat);
device.VideoDriver.Draw3DTriangle(tri, new Color(0, 255, 0, 0));
}
// draw 2d logo
device.VideoDriver.Draw2DImage(
texLogo, new Position2D(10, 10),
new Rect(0, 0, 88, 31),
new Rect(new Position2D(0, 0), device.VideoDriver.ScreenSize),
new Color(0xffffff), false);
// draw some text
font.Draw("Press 'S' to toggle the visibility of the realtime shadow.",
new Position2D(120, 20), new Color(100, 150, 200, 200));
device.VideoDriver.EndScene();
if (fps != device.VideoDriver.FPS)
{
fps = device.VideoDriver.FPS;
device.WindowCaption = "Irrlicht.NET test (primitives:" +
device.VideoDriver.PrimitiveCountDrawn + ") fps:" + fps;
}
}
}
}
public void run()
{
/* The start of the main function starts like in most other example.
* We ask the user for the desired renderer and start it up.
*/
// ask user for driver
DriverType driverType;
// Ask user to select driver:
StringBuilder sb = new StringBuilder();
sb.Append("Please select the driver you want for this example:\n");
sb.Append("\n(a) Direct3D 9.0c\n(b) Direct3D 8.1\n(c) OpenGL 1.5");
sb.Append("\n(d) Software Renderer\n(e)Apfelbaum Software Renderer");
sb.Append("\n(f) Null Device\n(otherKey) exit\n\n");
// Get the user's input:
TextReader tIn = Console.In;
TextWriter tOut = Console.Out;
tOut.Write(sb.ToString());
string input = tIn.ReadLine();
// Select device based on user's input:
switch (input)
{
case "a":
driverType = DriverType.DIRECT3D9;
break;
case "b":
driverType = DriverType.DIRECT3D8;
break;
case "c":
driverType = DriverType.OPENGL;
break;
case "d":
driverType = DriverType.SOFTWARE;
break;
case "e":
driverType = DriverType.SOFTWARE2;
break;
case "f":
driverType = DriverType.NULL_DRIVER;
break;
default:
return;
}
// Create device and exit if creation fails:
IrrlichtDevice device = new IrrlichtDevice(
driverType, new Dimension2D(640, 480), 32, false, true, true);
if (device == null)
{
tOut.Write("Device creation failed.");
return;
}
/* set this as event receiver*/
device.EventReceiver = this;
/*************************************************/
/* First, we add standard stuff to the scene: A nice irrlicht engine logo,
* a small help text, a user controlled camera, and we disable the mouse
* cursor.*/
ISceneManager smgr = device.SceneManager;
IVideoDriver driver = device.VideoDriver;
IGUIEnvironment env = device.GUIEnvironment;
driver.SetTextureCreationFlag(TextureCreationFlag.ALWAYS_32_BIT, true);
// add irrlicht logo
env.AddImage(driver.GetTexture(path + "irrlichtlogoalpha.tga"),
new Position2D(10, 10), true, null, 0, "");
// add some help text
IGUIStaticText text = env.AddStaticText(
"Press 'W' to change wireframe mode\nPress 'D' to toggle detail map",
new Rect(10, 453, 200, 475), true, true, null, -1);
// add camera
ICameraSceneNode camera =
smgr.AddCameraSceneNodeFPS(null, 100.0f, 1200.0f, -1);
camera.Position = new Vector3D(1900 * 2, 255 * 2, 3700 * 2);
camera.Target = new Vector3D(2397 * 2, 343 * 2, 2700 * 2);
camera.FarValue = 12000.0f;
// disable mouse cursor
device.CursorControl.Visible = false;
/* Here comes the terrain renderer scene node: We add it just like any other scene
* node to the scene using ISceneManager::addTerrainSceneNode(). The only parameter
* we use is a file name to the heightmap we use. A heightmap is simply a gray
* scale texture. The terrain renderer loads it and creates the 3D terrain
* from it.
* To make the terrain look more big, we change the scale factor of it to
* (40, 4.4, 40). Because we don't have any dynamic lights in the scene, we
* switch off the lighting, and we set the file terrain-texture.jpg as texture
* for the terrain and detailmap3.jpg as second texture, called detail map.
* At last, we set the scale values for the texture: The first texture will be
* repeated only one time over the whole terrain, and the second one (detail map)
* 20 times.
*/
// add terrain scene node
terrain = smgr.AddTerrainSceneNode(
path + "terrain-heightmap.bmp", null, -1,
new Vector3D(), new Vector3D(40, 4.4f, 40), new Color(255, 255, 255, 255));
terrain.SetMaterialFlag(MaterialFlag.LIGHTING, false);
terrain.SetMaterialType(MaterialType.DETAIL_MAP);
terrain.SetMaterialTexture(0, driver.GetTexture(path + "terrain-texture.jpg"));
terrain.SetMaterialTexture(1, driver.GetTexture(path + "detailmap3.jpg"));
terrain.ScaleTexture(1.0f, 20.0f);
/* To be able to do collision with the terrain, we create a triangle selector.
* If you want to know what triangle selectors do, just take a look into the
* collision tutorial. The terrain triangle selector works together with the
* terrain. To demonstrate this, we create a collision response animator and
* attach it to the camera, so that the camera will not be able to fly through
* the terrain.*/
// create triangle selector for the terrain
ITriangleSelector selector =
smgr.CreateTerrainTriangleSelector(terrain, 0);
// create collision response animator and attach it to the camera
ISceneNodeAnimator anim = smgr.CreateCollisionResponseAnimator(
selector, camera, new Vector3D(60, 100, 60),
new Vector3D(0, 0, 0),
new Vector3D(0, 50, 0), 0.0005f);
camera.AddAnimator(anim);
//we add the skybox which we already used in lots of Irrlicht examples.
driver.SetTextureCreationFlag(TextureCreationFlag.CREATE_MIP_MAPS, false);
smgr.AddSkyBoxSceneNode(
driver.GetTexture(path + "irrlicht2_up.jpg"),
driver.GetTexture(path + "irrlicht2_dn.jpg"),
driver.GetTexture(path + "irrlicht2_lf.jpg"),
driver.GetTexture(path + "irrlicht2_rt.jpg"),
driver.GetTexture(path + "irrlicht2_ft.jpg"),
driver.GetTexture(path + "irrlicht2_bk.jpg"), null, 0);
driver.SetTextureCreationFlag(TextureCreationFlag.CREATE_MIP_MAPS, true);
/* That's it, draw everything. Now you know how to use terrain
* in Irrlicht.
*/
int lastFPS = -1;
while (device.Run())
{
if (device.WindowActive)
{
device.VideoDriver.BeginScene(true, true, new Color(0, 200, 200, 200));
device.SceneManager.DrawAll();
device.VideoDriver.EndScene();
int fps = device.VideoDriver.FPS;
if (lastFPS != fps)
{
device.WindowCaption = "Irrlicht Engine - Terrain example [" +
device.VideoDriver.Name + "] FPS:" + fps.ToString();
lastFPS = fps;
}
}
}
/*
* In the end, delete the Irrlicht device.
*/
// Instead of device.drop, we'll use:
GC.Collect();
}
public void runTerrainTest()
{
device = new IrrlichtDevice(SelectedDriverType,
new Dimension2D(800, 600), 16, false, false, false);
device.EventReceiver = this;
device.ResizeAble = true;
device.WindowCaption = "Irrlicht.NET terrain test";
// create a camera
ICameraSceneNode cam =
device.SceneManager.AddCameraSceneNodeFPS(null, 100, 1200, -1);
cam.Position = new Vector3D(1900 * 2, 255 * 2, 3700 * 2);
cam.Target = new Vector3D(2397 * 2, 343 * 2, 2700 * 2);
cam.FarValue = 12000.0f;
// create the terrain
ITerrainSceneNode terrain = device.SceneManager.AddTerrainSceneNode(
"../../media/terrain-heightmap.bmp",
null, -1, new Vector3D(), new Vector3D(40, 4.4f, 40), new Color(255, 255, 255, 255));
terrain.SetMaterialFlag(MaterialFlag.LIGHTING, false);
terrain.SetMaterialType(MaterialType.DETAIL_MAP);
terrain.SetMaterialTexture(0, device.VideoDriver.GetTexture("../../media/terrain-texture.jpg"));
terrain.SetMaterialTexture(1, device.VideoDriver.GetTexture("../../media/detailmap3.jpg"));
terrain.ScaleTexture(1.0f, 20.0f);
// create terrain triangle selector for collision
ITriangleSelector selector = device.SceneManager.CreateTerrainTriangleSelector(terrain, 0);
// create collision animator and add it to the camera
ISceneNodeAnimator collAnim = device.SceneManager.CreateCollisionResponseAnimator(
selector, cam,
new Vector3D(30, 50, 30), // size of ellipsoid around camera
new Vector3D(0, 0, 0), // gravity
new Vector3D(0, 50, 0), // translation
0.0005f); // sliding value
cam.AddAnimator(collAnim);
// add sky box
device.SceneManager.AddSkyBoxSceneNode(
device.VideoDriver.GetTexture("../../media/irrlicht2_up.jpg"),
device.VideoDriver.GetTexture("../../media/irrlicht2_dn.jpg"),
device.VideoDriver.GetTexture("../../media/irrlicht2_lf.jpg"),
device.VideoDriver.GetTexture("../../media/irrlicht2_rt.jpg"),
device.VideoDriver.GetTexture("../../media/irrlicht2_ft.jpg"),
device.VideoDriver.GetTexture("../../media/irrlicht2_bk.jpg"),
null, -1);
// make cursor invisible
device.CursorControl.Visible = false;
// draw everything
while (device.Run())
{
if (device.WindowActive)
{
device.VideoDriver.BeginScene(true, true, new Color(255, 0, 0, 50));
device.SceneManager.DrawAll();
device.GUIEnvironment.DrawAll();
device.VideoDriver.EndScene();
}
}
}
public virtual bool ContactMade(ITriangleSelector selector, Triangle triangle, Vector3 iPoint, int edge)
{
Vector3 n = triangle.Normal;
if (edge != -1)
{
n = Vector3.Normalize(position - iPoint);
}
float d = n.Y;
if (d > groundSlope)
{
onGround = true;
velocity.Y = 0;
groundNormal += n;
}
else if (d < -groundSlope)
{
velocity.Y = 0;
jump = 0;
}
return true;
}
