internal TreeBranch(float c_length, float angleClamp, float dropOff, int number,
Vector3 normal, Vector3 position, int depthCounter, Billboard b, TreeBranch parent, Tree root)
{
List<Vector3> points = new List<Vector3>();
Position = position;
Parent = parent;
Root = root;
for (int i = 0; i < number; ++i)
{
if (depthCounter > 0)
points.Add(getNext(c_length, angleClamp, normal) + position);
else
points.Add(getNext(c_length, angleClamp, normal) * 0.5f + position);
}
if (depthCounter > 0)
{
foreach(Vector3 point in points)
{
Children.Add(new TreeBranch(c_length * dropOff, angleClamp, dropOff, number,
(point - position).normalize(), point, depthCounter-1, b, this, root));
}
}
else
{
foreach(Vector3 leaf in points)
{
Children.Add(new TreeLeaf(leaf, b, this, root));
}
}
}
internal TreeLeaf(Vector3 position, Billboard b, TreeBranch parent, Tree root)
{
Position = position;
leaf = b;
Parent = parent;
Root = root;
}
/// <summary>
/// Initializes the engine
/// </summary>
internal void Prime()
{
#region Initialize SDL
if (Sdl.SDL_Init(Sdl.SDL_INIT_VIDEO) != 0) throw new AuraEngineException("SDL failure: " + Sdl.SDL_GetError());
Sdl.SDL_GL_SetAttribute(Sdl.SDL_GL_DOUBLEBUFFER, 1);
screen = Sdl.SDL_SetVideoMode(x, y, 16, Sdl.SDL_OPENGL | Sdl.SDL_DOUBLEBUF);
if (screen == IntPtr.Zero) throw new AuraEngineException("Unable to set video mode: " + Sdl.SDL_GetError());
Sdl.SDL_WM_SetCaption(windowName,windowName);
#endregion
#region Initialize openGL
Gl.glViewport(0, 0, x, y);
Gl.glClearColor(0.8f, 0.8f, 0.8f, 1.0f);
Gl.glClear(Gl.GL_COLOR_BUFFER_BIT | Gl.GL_DEPTH_BUFFER_BIT);
Sdl.SDL_GL_SetAttribute(Sdl.SDL_GL_DEPTH_SIZE, 16);
Gl.glEnableClientState(Gl.GL_VERTEX_ARRAY);
Gl.glEnableClientState(Gl.GL_NORMAL_ARRAY);
//Gl.glEnableClientState(Gl.GL_TEXTURE_COORD_ARRAY);
Gl.glEnable(Gl.GL_DEPTH_TEST);
Gl.glShadeModel(Gl.GL_SMOOTH);
Gl.glEnable(Gl.GL_TEXTURE_2D);
Gl.glAlphaFunc(Gl.GL_GREATER, .016f);
Gl.glEnable(Gl.GL_ALPHA_TEST);
#endregion
#region Initialize ilut
Il.ilInit();
Ilu.iluInit();
Ilut.ilutInit();
Ilu.iluImageParameter(Ilu.ILU_PLACEMENT, Ilu.ILU_UPPER_LEFT);
Ilut.ilutRenderer(Ilut.ILUT_OPENGL);
#endregion
CameraManager.SetCamera("Default", new Camera(new Vector3(10, 10, 10), new Vector3(0, 0, 0)));
#region Set up explosion
mrExplody = new Explosion(new Vector3(0, 0, 0), 5.0f, 5.0f);
#endregion
#region DEBUG
//DEBUG: LIGHTING (BROKEN)
LightManager.LightingEnabled = true;
Texture t = TextureImporter.Instance.ImportContent("Data/grass.jpg");
Texture leaf = TextureImporter.Instance.ImportContent("Data/leaf.png");
Material lmaterial = new Material(new Color4(.1f, .1f, .1f, .1f), new Color4(.1f,0,0), new Color4(.1f,.1f,.1f), .1f);
Light l = new Light(lmaterial, false);
l.position = new Vector3(0,15,5);
LightManager.Lights.Add(l);
m = new Model(ObjImporter.Instance.ImportContent("Data/plane.obj"), t);
m.scale = 2f;
Billboard particleBillboard = new Billboard(TextureImporter.Instance.ImportContent("Data/particle.png"), BillboardLockType.Spherical, 0.2f);
particleBillboard.Dimention = new Vector2(.1f, .1f);
/* Create the particle systems for the core of the explosion */
List<ParticleSystem> fireParticleSystems = new List<ParticleSystem>();
Flames = new ParticleSystem(
10f, // 5... um.... units.
particleBillboard, //Using particle.png as the texture
.5f, //scale = 1/2
new Color4InterpolationHandler(FunctionAssets.LinearInterpolation), //Linear Interpolation for color
new ColorRange(new Color4(1, 1, 0, 1), new Color4(1, 0, 0, .3f)), // Yellow to Red
new FloatInterpolationHandler(FunctionAssets.LinearInterpolation), //Linear Interpolation for speed
new Range(1.0f, 0.0f));
Flames.Count = 500;
fireParticleSystems.Add(Flames); //Speed from 1.0 to 0.0
Fire = new EmitterBase(1, //75 umm... MS?
fireParticleSystems, //This should be self-explanatory
DirectionalClamp.ZeroClamp, //Nothing in the Negative Y
Util.r.Next(), //Seed the RNG
false); //Repeat!
Tree.flames = Flames;
//Debug: Particles
b = new Billboard(leaf, BillboardLockType.Spherical, 0.2f);
b.Dimention = new Vector2(.1f, .1f);
PointVisualization v = new PointVisualization();
ps = new ParticleSystem(300, b, 0.15f, FunctionAssets.LinearInterpolation, new ColorRange(new Color4(1, 1, 1)), FunctionAssets.LinearInterpolation, new Range(.1f));
ps.Count = 5;
for (int i = 0; i < 20; ++i)
{
Vector3 rand = new Vector3((float)(Util.r.NextDouble() * Util.r.NextSign() * 8), 0, (float)(Util.r.NextDouble() * Util.r.NextSign() * 8));
tree = new Tree(rand, 3.0f, 1.5f, .3f, 3, 3, b);
Forest.Add(tree);
}
ParticleSystem[] tps = { ps };
//e = new EmitterBase(1, tps, DirectionalClamp.ZeroClamp, null, true);
#endregion
}
