public static void DrawAIFieldOfViews(StateSpaceComponents spaceComponents, Camera camera, SpriteBatch spriteBatch, Texture2D rectangleTexture, int cellSize, DungeonTile[,] dungeonGrid)
{
Matrix cameraMatrix = camera.GetMatrix();
foreach (Guid id in spaceComponents.Entities.Where(x => (x.ComponentFlags & ComponentMasks.AIView) == ComponentMasks.AIView).Select(x => x.Id))
{
AIFieldOfView fovInfo = spaceComponents.AIFieldOfViewComponents[id];
if (fovInfo.DrawField)
{
foreach (Vector2 tilePosition in fovInfo.SeenTiles)
{
Vector2 tile = new Vector2((int)tilePosition.X * cellSize, (int)tilePosition.Y * cellSize);
Vector2 bottomRight = Vector2.Transform(new Vector2((tile.X + cellSize), (tile.Y + cellSize)), cameraMatrix);
Vector2 topLeft = Vector2.Transform(tile, cameraMatrix);
Rectangle cameraBounds = new Rectangle((int)topLeft.X, (int)topLeft.Y, (int)bottomRight.X - (int)topLeft.X, (int)bottomRight.Y - (int)topLeft.Y);
if (dungeonGrid[(int)tilePosition.X, (int)tilePosition.Y].InRange && camera.IsInView(cameraMatrix, cameraBounds))
{
if (spaceComponents.AlternateFOVColorChangeComponents.ContainsKey(id))
{
AlternateFOVColorChangeComponent altColorInfo = spaceComponents.AlternateFOVColorChangeComponents[id];
spriteBatch.Draw(rectangleTexture, position: tile, color: Color.Lerp(fovInfo.Color, altColorInfo.AlternateColor, altColorInfo.Seconds / altColorInfo.SwitchAtSeconds) * fovInfo.Opacity, origin: new Vector2(DevConstants.Grid.TileBorderSize, DevConstants.Grid.TileBorderSize));
}
else
{
//origin is 4,4 because the tile texture is 40x40 and the grid is 32x32. If size of grid changes, change this -- and then don't hardcode it anymore!!!
spriteBatch.Draw(rectangleTexture, position: tile, color: fovInfo.Color * fovInfo.Opacity, origin: new Vector2(DevConstants.Grid.TileBorderSize, DevConstants.Grid.TileBorderSize));
}
}
}
}
}
}
public static void UpdateFovColors(StateSpaceComponents spaceComponents, GameTime gameTime)
{
foreach (Guid id in spaceComponents.Entities.Where(x => (x.ComponentFlags & ComponentMasks.FOVColorChange) == ComponentMasks.FOVColorChange).Select(x => x.Id))
{
AlternateFOVColorChangeComponent altColorInfo = spaceComponents.AlternateFOVColorChangeComponents[id];
altColorInfo.Seconds += (float)gameTime.ElapsedGameTime.TotalSeconds;
if (altColorInfo.Seconds >= altColorInfo.SwitchAtSeconds)
{
AIFieldOfView fovInfo = spaceComponents.AIFieldOfViewComponents[id];
Color temp = fovInfo.Color;
fovInfo.Color = altColorInfo.AlternateColor;
altColorInfo.AlternateColor = temp;
altColorInfo.Seconds = 0f;
spaceComponents.AIFieldOfViewComponents[id] = fovInfo;
}
spaceComponents.AlternateFOVColorChangeComponents[id] = altColorInfo;
}
}