/// <summary>
/// Briefs the invader on it's mission. It should go from the start cell and try to
/// reach the goal cell.
/// </summary>
/// <param name="start">The cell to start on.</param>
/// <param name="goal">The goal to get to.</param>
/// <param name="key">The key to assign to this invader to aid in path finding.</param>
public void BriefOnMission(GridCell start, GridCell goal, DijkstraType key)
{
TargetCell = start;
GoalCell = goal;
DijkstraKey = key;
float dx = (DijkstraKey == DijkstraType.LeftToRight ? TargetCell.Width * 2f : 0);
float dy = (DijkstraKey == DijkstraType.TopToBottom ? TargetCell.Height * 2f : 0);
float mux = RandomGenerator.NextSingle();
float muy = RandomGenerator.NextSingle();
X = TargetCell.X - (dx * GsMath.SmoothStep(1, 5, mux));
Y = TargetCell.Y - (dy * GsMath.SmoothStep(1, 5, muy));
Width = TargetCell.Width * (Flying ? 1.5f : 1f);
Height = TargetCell.Height * (Flying ? 1.5f : 1f);
Velocity = new GsVector(mAttributes[InvaderAttributes.Speed]);
AdjustOrientation();
var texture = GetImage();
var size = ImageProvider.GetSize(texture);
Origin = new GsVector(size.Width / 2f, size.Height / 2f);
CurrentLife = MaximumLife;
TargetCell = Flying ? goal : start;
}
protected virtual void DrawBackground(DrawParams dparams, GsRectangle bounds, GsRectangle inside)
{
GsColor bgColor = (Level == MaxLevel ? GsMath.SmoothStep(GsColor.Beige, GsColor.SkyBlue, .5f) : GsColor.Beige);
GsColor color = Selected ? GsColor.DarkGreen : bgColor;
dparams.Graphics.FillRectangle(color, bounds);
}
private void DrawGrid(DrawParams dparams)
{
GsVector offset = dparams.Offset;
for (int c = 0; c < NumCols; ++c)
{
for (int r = 0; r < NumRows; ++r)
{
GridCell cell = Grid[c, r];
GsRectangle bounds = new GsRectangle(cell.X + offset.X, cell.Y + offset.Y, cell.Width, cell.Height);
if (cellsToFlash.ContainsKey(cell))
{
// draw the flashing cells
int index = ((int)((SecondsToFlashCell - cellsToFlash[cell]) * FlashesPerSecond)) % MaxFlashes;
float mu = ((float)index) / ((float)MaxFlashes);
GsColor color = GsMath.SmoothStep(FlashStart, FlashEnd, mu);
color = new GsColor(color, 200);
dparams.Graphics.FillRectangle(color, bounds);
}
if (cell.IsOuter && !cell.IsThroughway)
{
switch (dparams.FillMode)
{
case GridFillMode.Solid:
{
dparams.Graphics.FillRectangle(GsColor.White, bounds);
break;
}
case GridFillMode.Polygons:
{
dparams.Graphics.DrawRectangle(GsColor.White, bounds);
break;
}
}
}
}
}
}
/// <summary>
/// Levels up this invader by adding on the experience points. Each experience is
/// distributed to a certain attribute of the invader based on the weights that
/// are passed in.
/// </summary>
/// <param name="experiencePts">The amount of experience points.</param>
/// <param name="info">The info to use when distributing the experience points.</param>
public void LevelUp(float experiencePts, float level, InvaderLevelUpInfo info)
{
// add on to the current experience
Experience += experiencePts;
// from here, determine the mu
float mu = Calculator.CalculatePercent(level, MinInvaderLevel, MaxInvaderLevel);
// now, determine the level (make sure we're at least lvl1)
Level = level;
// determine the value
Value = (float)Math.Ceiling(Level * 5);
// calculate the maximum life
MaximumLife = (float)Math.Floor(GsMath.SmoothStep(MinInvaderLife, MaxInvaderLife, mu));
// get the elements with the highest count
int max = info.ElementCounts.Max(i => i.Value);
Element[] elements = (from kvp in info.ElementCounts
where kvp.Value.Equals(max)
select kvp.Key).ToArray();
// for now, set the first one to be our element
Element = elements.Length == 1 ? elements[0] : Element.None;
// create a dictionary
List <InvaderAttributes> attributes = mAttributes.Keys.ToList();
// based on the level, add on the to the attributes
foreach (InvaderAttributes attribute in attributes)
{
var minmax = MinMaxValues[attribute];
mAttributes[attribute] = (float)Math.Floor(GsMath.SmoothStep(minmax.Min, minmax.Max, mu));
// TODO:
// here, we need to determine if we're going to increase/decrease the defense, skill, or speed
// based on how many invaders made it.
//
// An easy AI would take away abilities when invaders didn't
// make it. It would also decrease defense and skill. Basically making it easier on the player.
//
// A normal AI wouldn't do anything.
// A hard AI would very slightly increase the attributes
// A difficult AI...you get the picture.
}
// set the color based on the element
Color = Colors[Element];
// TODO:
// here, based on the skill, we would update the abilities.
// set the base image key
int key = (int)Math.Floor(Level / LevelDenominator);
ImageKey = BaseImageKeys[key][Flying ? 1 : 0];
// randomize the animation settings
mIndex = RandomGenerator.Next() % ImageProvider.GetFramedImage(ImageKey).NumberFrames;
mTotalElapsedSeconds = RandomGenerator.Next(10) * SecondsPerFrame;
}