public void Draw(Camera camera, Effect effect, bool drawWall)
{
device.SamplerStates[0] = SamplerState.LinearClamp;
ConfigureShader(camera, effect);
DrawFloors(camera, effect);
if (drawWall)
{
DrawWalls(camera, effect);
}
}
/// <summary>
/// Draw the enemy model
/// </summary>
/// <param name="camera">The camera that is seeing this model</param>
public void Draw(Camera camera)
{
// apply transformation to whole model
model.Root.Transform = Matrix.Identity *
Matrix.CreateScale(0.001f) *
Matrix.CreateRotationY(Rotation) *
Matrix.CreateTranslation(Position);
model.CopyAbsoluteBoneTransformsTo(boneTransforms);
// rotate the enemy legs
model.Bones["left_leg"].Transform = Matrix.CreateRotationX(MathHelper.ToRadians(leftLegRotation)) * leftLegTransform;
model.Bones["right_leg"].Transform = Matrix.CreateRotationX(MathHelper.ToRadians(rightLegRotation)) * rightLegTransform;
foreach (ModelMesh mesh in model.Meshes)
{
foreach (BasicEffect e in mesh.Effects)
{
e.World = boneTransforms[mesh.ParentBone.Index];
e.View = camera.View;
e.Projection = camera.Projection;
e.EnableDefaultLighting();
}
mesh.Draw();
}
}
/// <summary>
/// LoadContent will be called once per game and is the place to load
/// all of your content.
/// </summary>
protected override void LoadContent()
{
// initialise sound for camera
wallCollisionAudio = Content.Load<SoundEffect>("Sounds/wallcollision_sound");
leftFootStepSound = Content.Load<SoundEffect>("Sounds/leftfootstep_sound");
rightFootStepSound = Content.Load<SoundEffect>("Sounds/rightfootstep_sound");
// Setup camera
camera = new Camera(
new Vector3(0.5f, 0.5f, 0.5f),
0,
GraphicsDevice.Viewport.AspectRatio,
0.05f,
100f, wallCollisionAudio,
leftFootStepSound,
rightFootStepSound);
// Create a new SpriteBatch, which can be used to draw textures.
spriteBatch = new SpriteBatch( GraphicsDevice );
// Load shader and set defaults
effect = Content.Load<Effect>("shader");
effect.Parameters["material"].StructureMembers["ambient"].SetValue(new Vector4(0.65f, 0.65f, 0.6f, 1.0f));
effect.Parameters["fog"].StructureMembers["FogEnabled"].SetValue(false);
effect.Parameters["light"].StructureMembers["radius"].SetValue(0.1f);
// Load sound effects
wallCollisionAudio = Content.Load<SoundEffect>("Sounds/wallcollision_sound");
leftFootStepSound = Content.Load<SoundEffect>("Sounds/leftfootstep_sound");
rightFootStepSound = Content.Load<SoundEffect>("Sounds/rightfootstep_sound");
musicDay = Content.Load<SoundEffect>("Sounds/medievil_music");
musicNight = Content.Load<SoundEffect>("Sounds/medievil_music2");
currentMusic = musicDay.CreateInstance();
currentMusic.Volume = 1f;
currentMusic.IsLooped = true;
music = true;
maze.LoadContent(Content);
// Setup camera
camera = new Camera(
new Vector3(0.5f, 0.5f, 0.5f),
0,
GraphicsDevice.Viewport.AspectRatio,
0.05f,
100f,
wallCollisionAudio,
leftFootStepSound,
rightFootStepSound);
enemy = new Enemy(this, GraphicsDevice,
Content.Load<Model>("enemy"),
new Vector3(2.5f, 0, 2.5f),
leftFootStepSound,
rightFootStepSound);
enemy.Apply3DAudio(listener, enemy.Position, currentMusic);
currentMusic.Play();
}
// helper function to draw walls
private void DrawWalls(Camera camera, Effect effect)
{
// iterate each wall and draw
for (int i = 0; i < wallEffects.Count(); i++)
{
effect.Parameters["colorMapTexture"].SetValue(wallTextures[i]);
foreach (EffectPass pass in effect.CurrentTechnique.Passes)
{
pass.Apply();
device.DrawUserPrimitives<VertexPositionNormalTexture>(PrimitiveType.TriangleList, wallVertices[i], 0, wallVertices[i].Count() / 3);
}
}
}
// helper function to draw the floor
private void DrawFloors(Camera camera, Effect effect)
{
effect.Parameters["colorMapTexture"].SetValue(floorTexture);
foreach (EffectPass pass in effect.CurrentTechnique.Passes)
{
pass.Apply();
device.DrawUserPrimitives<VertexPositionNormalTexture>(PrimitiveType.TriangleList, floorVertices, 0, floorVertices.Count() / 3);
}
}
/// <summary>
/// Configures shader with parameters
/// </summary>
/// <param name="camera">camera used for world,view and projection</param>
/// <param name="effect">applies shader to effect</param>
private void ConfigureShader(Camera camera, Effect effect)
{
// Calculate the transposed inverse of the world matrix.
Matrix worldInvTrans = Matrix.Transpose(Matrix.Invert(Matrix.Identity));
// Calculate combined world-view-projection matrix.
Matrix worldViewProj = Matrix.Identity * camera.View * camera.Projection;
// Create camera position from camera rotation
Matrix rotationMatrix = Matrix.CreateFromYawPitchRoll(camera.RotationX, -camera.RotationY, 0);
Vector3 direction = Vector3.Transform(Vector3.Backward, rotationMatrix);
// Set current lighting technieque for flahs light spot
effect.CurrentTechnique = effect.Techniques["PerPixelSpotLighting"];
// Set shader matrix parameters.
effect.Parameters["worldMatrix"].SetValue(Matrix.Identity);
effect.Parameters["worldInverseTransposeMatrix"].SetValue(worldInvTrans);
effect.Parameters["worldViewProjectionMatrix"].SetValue(worldViewProj);
// Set the shader camera position parameter.
effect.Parameters["cameraPos"].SetValue(camera.Position);
// Set the shader global ambiance parameters.
effect.Parameters["globalAmbient"].SetValue(Color.White.ToVector4());
// Set the shader lighting parameters.
effect.Parameters["light"].StructureMembers["dir"].SetValue(Vector3.Transform(Vector3.Backward, rotationMatrix));
effect.Parameters["light"].StructureMembers["pos"].SetValue(camera.Position);
effect.Parameters["light"].StructureMembers["ambient"].SetValue(Color.White.ToVector4());
effect.Parameters["light"].StructureMembers["diffuse"].SetValue(Color.White.ToVector4());
effect.Parameters["light"].StructureMembers["specular"].SetValue(Color.White.ToVector4());
effect.Parameters["light"].StructureMembers["spotInnerCone"].SetValue(MathHelper.ToRadians(20.0f));
effect.Parameters["light"].StructureMembers["spotOuterCone"].SetValue(MathHelper.ToRadians(30.0f));
//effect.Parameters["light"].StructureMembers["radius"].SetValue(10.0f); - flash toggle moved to MazeGame
// Set the shader material parameters.
// ambient set in MazeGame toggleAmbient
effect.Parameters["material"].StructureMembers["diffuse"].SetValue(new Vector4(0.50754f, 0.50754f, 0.50754f, 1.0f));
effect.Parameters["material"].StructureMembers["emissive"].SetValue(Color.Black.ToVector4());
effect.Parameters["material"].StructureMembers["specular"].SetValue(new Vector4(0.508273f, 0.508273f, 0.508273f, 1.0f));
effect.Parameters["material"].StructureMembers["shininess"].SetValue(51.2f);
// Set the shader fog parameters.
// enable and disabled set in MazeGame fog toggle
effect.Parameters["fog"].StructureMembers["FogStart"].SetValue(0.5f);
effect.Parameters["fog"].StructureMembers["FogEnd"].SetValue(2.5f);
effect.Parameters["fog"].StructureMembers["FogColor"].SetValue(Color.Black.ToVector3());
}