public static MovementPath AStar(Point start, Point end, Stage stage = null)
{
MovementPath newPath = new MovementPath(null);
if (stage == null)
{
stage = Stage.CurrentStage;
}
// setup grid with walls
//MyPathNode[,] grid = new MyPathNode[(int)stage.Width, (int)stage.Height];
MyPathNode[][] grid = new MyPathNode[(int)stage.Width][];
for (int x = 0; x < (int)stage.Width; x++)
{
grid[x] = new MyPathNode[(int) stage.Height];
for (int y = 0; y < (int)stage.Height; y++)
{
grid[x][y] = new MyPathNode()
{
IsWall = stage.GetTileAt(x, y).GetWalkable(),
X = x,
Y = y,
};
}
}
SpatialAStar<MyPathNode, Object> aStar = new SpatialAStar<MyPathNode, Object>(grid);
LinkedList<MyPathNode> path = aStar.Search(new Point(0, 0),
new Point(stage.Width - 2, stage.Height - 2), null);
return null;
}
//sets up all of the variables for the stage
public Stage(string stageName, StageType stageType)
{
this.SetName(stageName);
this.StageType = stageType;
this.AmbientLightLevel = Color.White;
if (CurrentStage == null)
{
CurrentStage = this;
}
}
public static List<LightSource> GetLocalLightSources(double xPos, double yPos, Stage stage, View view)
{
List<LightSource> returnLights = new List<LightSource>();
foreach (LightSource light in stage.GetLights(view))
{
//if the light is brighter than, or as bright as it is far away
if (light.GetPosition().Distance(new Point(xPos, yPos)) <= light.range)
{
//it is a "local" light source, add it to the return list
returnLights.Add(light);
}
}
return returnLights;
}
public static GuiLayer AsCollisionMap(Stage sourceStage)
{
Debug.log("Rendering collision map...");
//So we need to reposition this so that it isn't at 0,0,
//but rather at the position of the game board
//technically, I think the view should be at that position, and this should be 0,0 within the view...
//the size should be equal to the stage or stage's gui layer
///!/// so, fixing the size of this. Not an ideal situation. Wll have to address.
GuiLayer collisionLayer = View.GetMainView().AddLayer("CollisionLayer", DOM_Renderer.GetRenderer().As<DOM_Renderer>().BoardArea());
//GuiLayer collisionLayer = View.GetMainView().AddLayer("CollisionLayer", View.GetMainView().GetViewArea());
//put the layer on top / make it visible
//collisionLayer.GetRenderElement().Style.ZIndex = 10;
//get the size of the tiles in the stage so that we can offset the collision overlay
Dimension TileSize = Stage.CurrentStage.GetTileSize();
//loop through each of the tiles, and draw whether or not it collides to the layer
foreach (Tile tile in sourceStage.GetVisibleTiles(collisionLayer.GetAttachedView()))
{
GuiElement gelm = collisionLayer.AddGUIElement("");
//gelm.InitialRender();
gelm.SetPosition(
(int)Helpah.Round(tile.GetPosition().x * TileSize.width),
(int)Helpah.Round(tile.GetPosition().y * TileSize.height));
// Set the size to 0, 0 so that the renderer ignores the element.
// The CSS stylesheet will give it size.
gelm.SetSize(0, 0);
gelm.AddStyle("collisionBlock");
//gelm.GetRenderElement().ClassName = "collisionBlock";
if (tile.GetBuildable())
{
gelm.AddStyle("buildable");
//gelm.GetRenderElement().ClassName += " buildable";
}
}
return collisionLayer;
}
public Stage(string stageName, StageType stageType, Dimension stageSize)
{
this.SetName(stageName);
this.StageType = stageType;
this.AmbientLightLevel = Color.White;
if (CurrentStage == null)
{
CurrentStage = this;
}
this.size = stageSize;
//return;
// Create a set of empty tiles.
for (double w = 0; w < this.size.width; w++)
{
for (double h = 0; h < this.size.height; h++)
{
this.AddTile("", true, true, new Point(w, h));
}
}
}
// Resolve the map's path legs for a given dimension
private static void resolvePathLegs(Stage stage, bool vertical, ref Dictionary<short, List<PathLeg>> returnVals)
{
short col = 0;
short row = 0;
short legStart = -1;
short legEnd = -1;
if (vertical)
{
// Loop through all of the rows
while (col < stage.Width)
{
returnVals[col] = new List<PathLeg>();
// Loop through all of the columns in this row ...
while (row < stage.Height)
{
// If the tile is passable by entities.
if (stage.GetTileAt(col, row).GetWalkable())
{
// If we're in a leg, extend it
if (legStart != -1)
{
legEnd = row;
}
// Start a new leg
else
{
legStart = row;
}
}
else
{
// If we had a leg going, store it.
if (legStart != -1 && legEnd != -1)
{
returnVals[col].Add(new PathLeg(new Point(col, legStart), new Point(col, legEnd), vertical));
}
legStart = -1;
legEnd = -1;
}
row++;
}
row = 0;
col++;
}
}
else
{
// Loop through all of the rows
while (row < stage.Height)
{
returnVals[row] = new List<PathLeg>();
// Loop through all of the columns in this row ...
while (col < stage.Width)
{
// If the tile is passable by entities.
if (stage.GetTileAt(col, row).GetWalkable())
{
// If we're in a leg, extend it
if (legStart != -1)
{
legEnd = col;
}
// Start a new leg
else
{
legStart = col;
}
}
else
{
// If we had a leg going, store it.
if (legStart != -1 && legEnd != -1)
{
returnVals[row].Add(new PathLeg(new Point(legStart, row), new Point(legEnd, row), vertical));
}
legStart = -1;
legEnd = -1;
}
col++;
}
col = 0;
row++;
}
}
}
// Resolve a single (horizontal or vertical) leg of a path between two points.
private static List<Point> resolveLeg(Point start, Point end, Stage stage, bool vertical)
{
List<Point> resultPath = new List<Point>();
Point currentPoint = start;
resultPath.Add(start);
if (vertical)
{
// Positive movement
if (end.y > start.y)
{
while (stage.GetTileAt((int)currentPoint.x, (int)currentPoint.y + 1) != null &&
stage.GetTileAt((int)currentPoint.x, (int)currentPoint.y + 1).GetWalkable())
{
currentPoint = new Point(currentPoint.x, currentPoint.y + 1);
resultPath.Add(currentPoint);
}
}
// Negative movement
else
{
while (stage.GetTileAt((int)currentPoint.x, (int)currentPoint.y - 1) != null &&
stage.GetTileAt((int)currentPoint.x, (int)currentPoint.y - 1).GetWalkable())
{
currentPoint = new Point(currentPoint.x, currentPoint.y - 1);
resultPath.Add(currentPoint);
}
}
}
// Horizontal
else
{
// Positive movement
if (end.x > start.x)
{
while (stage.GetTileAt((int)currentPoint.x + 1, (int)currentPoint.y) != null &&
stage.GetTileAt((int)currentPoint.x + 1, (int)currentPoint.y).GetWalkable())
{
currentPoint = new Point(currentPoint.x + 1, currentPoint.y);
resultPath.Add(currentPoint);
}
}
// Negative movement
else
{
while (stage.GetTileAt((int)currentPoint.x - 1, (int)currentPoint.y) != null &&
stage.GetTileAt((int)currentPoint.x - 1, (int)currentPoint.y).GetWalkable())
{
currentPoint = new Point(currentPoint.x - 1, currentPoint.y);
resultPath.Add(currentPoint);
}
}
}
// Check the point at the end of the path to make sure it's accessible from two directions
// Remove points from the end until the last point is accessible from two directions.
return resultPath;
}
// Get the longest passage connected to a point
private static MovementDirection longestPassage(Point point, Stage stage)
{
short longestPassage = 0;
MovementDirection longestDirection = MovementDirection.None;
Point currentPoint = point;
short passageLength = 0;
// Check Right
while (stage.GetTileAt((int) currentPoint.x + 1, (int) currentPoint.y) != null &&
stage.GetTileAt((int) currentPoint.x + 1, (int) currentPoint.y).GetWalkable())
{
currentPoint = new Point(currentPoint.x + 1, currentPoint.y);
passageLength++;
}
if (passageLength > longestPassage)
{
longestDirection = MovementDirection.Right;
}
passageLength = 0;
currentPoint = point;
// Check Left
while (stage.GetTileAt((int)currentPoint.x - 1, (int)currentPoint.y) != null &&
stage.GetTileAt((int)currentPoint.x - 1, (int)currentPoint.y).GetWalkable())
{
currentPoint = new Point(currentPoint.x - 1, currentPoint.y);
passageLength++;
}
if (passageLength > longestPassage)
{
longestDirection = MovementDirection.Left;
}
passageLength = 0;
currentPoint = point;
// Check Up
while (stage.GetTileAt((int)currentPoint.x, (int)currentPoint.y + 1) != null &&
stage.GetTileAt((int)currentPoint.x, (int)currentPoint.y + 1).GetWalkable())
{
currentPoint = new Point(currentPoint.x, currentPoint.y + 1);
passageLength++;
}
if (passageLength > longestPassage)
{
longestDirection = MovementDirection.Up;
}
passageLength = 0;
currentPoint = point;
// Check Down
while (stage.GetTileAt((int)currentPoint.x, (int)currentPoint.y - 1) != null &&
stage.GetTileAt((int)currentPoint.x, (int)currentPoint.y - 1).GetWalkable())
{
currentPoint = new Point(currentPoint.x, currentPoint.y - 1);
passageLength++;
}
if (passageLength > longestPassage)
{
longestDirection = MovementDirection.Down;
}
return longestDirection;
}
//resolve the shortest path between two given points
public static MovementPath ResolvePath2(Point start, Point end, Stage stage = null)
{
MovementPath newPath = new MovementPath(null);
if (stage == null)
{
stage = Stage.CurrentStage;
}
// The last point added
Point currentPoint = start;
//need better pathfinding and collision detection later
// Add the beginning
newPath.AddPoint(start);
// List all of the avenues we've explored
List<PathLeg> pathLegs = new List<PathLeg>();
// Start from the start and explore the legs
// March repeatedly through each path, until reaching the exit or a dead end
//if there's horizontal distance to cover between the points, cover it first
while(currentPoint.x != end.x)
{
// If we can move to the next tile, do so
if (stage.GetTileAt((int)currentPoint.x + 1, (int)currentPoint.y).GetWalkable())
{
currentPoint = new Point(currentPoint.x + 1, currentPoint.y);
newPath.AddPoint(currentPoint);
}
// If not, switch to vertical differencing ...
else
{
}
}
return newPath;
}
//resolve the shortest path between two given points
public static MovementPath ResolvePath(Point start, Point end, Stage stage = null)
{
MovementPath newPath = new MovementPath(null);
if (stage == null)
{
stage = Stage.CurrentStage;
}
// The last point added
Point currentPoint = start;
// A list of all path legs on the horizontal plane of the map, indexed by map row.
Dictionary<short, List<PathLeg>> horizontalPathLegs = new Dictionary<short, List<PathLeg>>();
// A list of all path legs on the vertical plane of the map, indexed by map column.
Dictionary<short, List<PathLeg>> verticalPathLegs = new Dictionary<short, List<PathLeg>>();
// Resolve the legs in the map
MovementPath.resolvePathLegs(stage, false, ref horizontalPathLegs);
MovementPath.resolvePathLegs(stage, true, ref verticalPathLegs);
// Prioritize the side with more long paths (horizontal or vertical)
// Determine which paths to attempt to join together, and calculate the cost of traveling between those paths
// If the travel cost is significant (exceeds the difference with the next-shortest path), try the next path
return newPath;
}
//depending on available stage types, maybe this function should infer stagetype from game context?
public static Stage CreateStage(string stageName, StageType stageType, Dimension stageSize = null)
{
Stage newStage;
if (stageSize != null)
{
newStage = new Stage(stageName, stageType, stageSize);
}
else
{
newStage = new Stage(stageName, stageType);
}
//if there is a main view with no stage, make this the attached stage
if (View.GetMainView() != null && View.GetMainView().GetAttachedStage() == null)
{
View.GetMainView().AttachStage(newStage);
}
gameStages.Add(newStage);
return newStage;
}
public static void LoadStage(Stage stageToLoad)
{
//unload the current stage
if (Stage.CurrentStage != null)
{
Game.UnloadStage();
}
//load the new stage
Stage.CurrentStage = stageToLoad;
View.GetMainView().AttachStage(stageToLoad);
}
public void SetParentStage(Stage newStage)
{
this.parentStage = newStage;
}
public void AttachStage(Stage newStage)
{
this.stgAttached = newStage;
}
public void Activate()
{
this.active = true;
if (this.stgAttached == null && Stage.CurrentStage != null)
{
this.stgAttached = Stage.CurrentStage;
}
if (View.activeViews.Contains(this) == false)
{
View.activeViews.Add(this);
}
}
