/// <summary>
/// Searchs for the tweets containing a specific search string.
/// </summary>
/// <param name="tweetText">The search string.</param>
public async void SearchTweets(string tweetText)
{
if (!this.authorizer.IsAuthorized)
{
await this.authorizer.AuthorizeAsync();
this.context = new TwitterContext(authorizer);
}
string roamingFolder = ApplicationData.Current.RoamingFolder.Path + "\\";
var searchResult =
(from search in context.Search
where search.Type == SearchType.Search &&
search.Query == tweetText
select search)
.SingleOrDefault();
foreach (var result in searchResult.Statuses)
{
bool alreadyExists = false;
bool fileExists = true;
HttpClient http = new HttpClient();
HttpResponseMessage response = await http.GetAsync(result.User.ProfileImageUrl);
string userAvatarName = result.User.Identifier.UserID + Path.GetExtension(result.User.ProfileImageUrl);
Tweets[userAvatarName] = new TweetInfo("@" + result.User.Identifier.ScreenName, result.Text);
try
{
StorageFile existingFile = await ApplicationData.Current.RoamingFolder.GetFileAsync(userAvatarName);
}
catch (FileNotFoundException f)
{
fileExists = false;
}
if (!fileExists)
{
using (NativeFileStream file = new NativeFileStream(roamingFolder + userAvatarName, NativeFileMode.Create, NativeFileAccess.Write))
{
await response.Content.CopyToAsync(file.AsOutputStream().AsStreamForWrite());
}
}
for (int i = 0; i < AvatarTextures.Count; i++)
{
if (AvatarTextures[i].TexturePath == userAvatarName)
{
alreadyExists = true;
break;
}
}
if (!alreadyExists)
{
AddTextureFromFile(userAvatarName);
}
}
}
/// <summary>
/// Renders the scene.
/// </summary>
/// <param name="render">Render target to draw contents to.</param>
public void Render(TargetBase render)
{
float newTime = (float)clock.ElapsedMilliseconds / 1000.0f;
float frameTime = newTime - currentTime;
currentTime = newTime;
if (!gameStarted)
{
return;
}
if (gameStarted && !gamePaused)
{
accumulator += frameTime;
}
var d3dContext = render.DeviceManager.ContextDirect3D;
float width = (float)render.RenderTargetSize.Width;
float height = (float)render.RenderTargetSize.Height;
renderer.View = Matrix.LookAtLH(cameraPosition, new Vector3(0, 0, 70), Vector3.UnitY);
renderer.Projection = Matrix.PerspectiveFovLH((float)Math.PI / 4.0f, width / (float)height, 0.1f, 1000.0f);
d3dContext.OutputMerger.BlendState = blend;
d3dContext.Rasterizer.State = raster;
d3dContext.OutputMerger.SetTargets(render.DepthStencilView, render.RenderTargetView);
d3dContext.ClearDepthStencilView(render.DepthStencilView, DepthStencilClearFlags.Depth, 1.0f, 0);
d3dContext.ClearRenderTargetView(render.RenderTargetView, Colors.Black);
d3dContext.InputAssembler.InputLayout = layout;
d3dContext.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleList;
d3dContext.VertexShader.SetConstantBuffer(0, renderer.constantBuffer);
d3dContext.VertexShader.Set(vertexShader);
d3dContext.PixelShader.SetSampler(0, sampler);
d3dContext.PixelShader.Set(pixelShader);
while (accumulator >= updateFrequency)
{
drawQueue.Clear();
parts.Sort(new EntityTextureComparer());
for (int i = 0; i < parts.Count; i++)
{
Entity currentPart = parts[i];
currentPart.Transform = currentPart.Transform * Matrix.Translation(0, 0, -200.0f * updateFrequency);
roadDistance = (currentPart.Model.BBox.Maximum.Z - currentPart.Model.BBox.Minimum.Z);
// TODO: don't hardcode values
if (currentPart.Transform.M43 < -roadDistance)
{
currentPart.Transform = currentPart.Transform * Matrix.Translation(0, 0, roadDistance * 18);
}
if (currentPart.Child != null)
{
tempChilds.Add(currentPart.Child);
}
if (currentPart.Lightmap != null)
{
renderer.SetActiveTexture(currentPart.Lightmap, 1);
}
else
{
renderer.SetActiveTexture(white, 1);
}
drawQueue.Add(currentPart);
}
tempChilds.Sort(new EntityMeshComparer());
for (int i = 0; i < tempChilds.Count; i++)
{
Entity currentPart = tempChilds[i];
drawQueue.Add(currentPart);
}
tempChilds.Clear();
if (playerEntity != null)
{
playerEntity.Update(updateFrequency);
drawQueue.Add(playerEntity);
drawQueue.Add(playerEntity.Child);
cameraPosition.X = playerEntity.Transform.M41;
}
for (int i = 0; i < collidableObjects.Count; i++)
{
Entity currentObject = collidableObjects[i];
currentObject.Transform = Matrix.Translation(0, 0, -200.0f * updateFrequency) * currentObject.Transform;
// HACK
currentObject.RestoreMatrix = true;
currentObject.oldMatrix = currentObject.Transform;
// Pre-rotation collision
if (currentObject.IsCollidable && currentObject.BBox.Intersects(ref playerEntity.BBox))
{
if (currentObject.IsPickable)
{
collidedIcons.Add(currentObject);
MainViewModel.Instance.Followers++;
if (client.Tweets.ContainsKey(currentObject.Texture.TexturePath))
{
TweetInfo info = client.Tweets[currentObject.Texture.TexturePath];
MainViewModel.Instance.ActualTweet = info.TweetText;
MainViewModel.Instance.ActualUser = info.Username;
}
}
else
{
// TODO kill
gamePaused = true;
if (GameEnded != null)
{
GameEnded(null, EventArgs.Empty);
}
}
}
if (currentObject.Rotates)
{
currentObject.oldMatrix = Matrix.RotationY(clock.ElapsedMilliseconds * 0.005f + currentObject.EffectDelay) * Matrix.Translation(0, (float)Math.Sin(totalTime / 100.0f + currentObject.EffectDelay) * 5.0f, 0) * currentObject.Transform;
}
if (client.AvatarTextures.Count > 0 && currentObject.Texture.Equals(white))
{
currentObject.Texture = client.AvatarTextures[i % client.AvatarTextures.Count];
}
drawQueue.Add(currentObject);
}
for (int i = 0; i < collidedIcons.Count; i++)
{
collidableObjects.Remove(collidedIcons[i]);
}
collidedIcons.Clear();
accumulator -= updateFrequency;
nextCarAdd -= updateFrequency;
nextIconAdd -= updateFrequency;
nextTweetSearch -= updateFrequency;
MainViewModel.Instance.Miles += Math.Round(updateFrequency, 2);
if (nextTweetSearch <= 0)
{
client.SearchTweets("#" + MainViewModel.Instance.Hashtag);
nextTweetSearch = 30.0f;
}
if (nextCarAdd <= 0)
{
int numCars = randomizer.Next(2) + 3;
for (int i = 0; i < numCars; i++)
{
int carPlace = randomizer.Next(0, 10);
int carType = randomizer.Next(0, 10);
bool isBigCar = carType > 6;
Entity car = factory.CreateEntity(isBigCar ? BigCarModelPath : SmallCarModelPath, CarsTexturePath);
car.Transform = Matrix.Translation(carPlace > 4 ? -car.Model.Bounds.X / 2 : car.Model.Bounds.X / 2, isBigCar ? 6.0f : 0.0f, i * roadDistance * 4 + roadDistance * 16);
car.IsCollidable = true;
car.IsPickable = false;
collidableObjects.Add(car);
}
nextCarAdd = (float)randomizer.NextDouble() * 2.0f + 5.0f;
}
if (nextIconAdd <= 0)
{
int numIcons = randomizer.Next(2, 5) * 5;
int iconPlace = randomizer.Next(0, 3) - 1;
for (int i = 0; i < numIcons; i++)
{
Entity icon = factory.CreateEntity(IconPictureModelPath, WhiteTexturePath);
icon.Transform = Matrix.Translation(iconPlace * PathWidth, 0, i * PathWidth * 2 + roadDistance * 16);
icon.IsCollidable = true;
icon.IsPickable = true;
icon.Rotates = true;
icon.EffectDelay = i * 0.2f;
if (client.AvatarTextures.Count > 0)
{
icon.Texture = client.AvatarTextures[i % client.AvatarTextures.Count];
}
collidableObjects.Add(icon);
}
nextIconAdd = (float)randomizer.NextDouble() * 2.0f + 3.0f;
}
}
for (int i = 0; i < drawQueue.Count; i++)
{
if (drawQueue[i].RestoreMatrix)
{
Matrix tmp = drawQueue[i].Transform;
drawQueue[i].Transform = drawQueue[i].oldMatrix;
renderer.DrawEntity(drawQueue[i]);
drawQueue[i].Transform = tmp;
}
else
{
renderer.DrawEntity(drawQueue[i]);
}
}
totalTime = clock.ElapsedMilliseconds;
}