private void deduceOrientation(SnakeType snake, FoodType food)
{
int number = random % upperBound;
switch (threat)
{
case ThreatLevel.low:
if (number == 0)
{
randomOrientation();
}
else if (number == 1)
{
directionalOrientation(food);
}
else
{
attackOrientation(snake, food);
}
break;
case ThreatLevel.medium:
if (number == 0 || number == 1)
{
randomOrientation();
}
else if (number == 2)
{
attackOrientation(snake, food);
}
else
{
smartOrientation(snake);
}
break;
case ThreatLevel.high:
if (number == 0 || number == 1)
{
attackOrientation(snake, food);
}
else
{
smartOrientation(snake);
}
break;
}
}
//Returns the same orientation as the snake, simulating the food running from the snake
private void runOrientation(SnakeType snake, FoodType food)
{
bool temp = false;
//Determine if food is in front of snake
switch (snake.Orientation)
{
case OrientationType.up:
if (snake.Vector.Y > food.Vector.Y)
{
temp = true;
}
break;
case OrientationType.down:
if (snake.Vector.Y < food.Vector.Y)
{
temp = true;
}
break;
case OrientationType.left:
if (snake.Vector.X > food.Vector.X)
{
temp = true;
}
break;
case OrientationType.right:
if (snake.Vector.X < food.Vector.X)
{
temp = true;
}
break;
}
//If the food is in front of snake, run, else random
if (temp)
{
orientation = snake.Orientation;
}
else
{
randomOrientation();
}
}
private void deduceThreat(SnakeType snake, FoodType food)
{
int yClose = (int)(snake.Vector.Y - food.Vector.Y);
int xClose = (int)(snake.Vector.X - food.Vector.X);
if ((Math.Abs(yClose) <= innerZone) || (Math.Abs(xClose) <= innerZone))
{
threat = ThreatLevel.high;
}
else if ((Math.Abs(yClose) <= outerZone) || (Math.Abs(xClose) <= outerZone))
{
threat = ThreatLevel.medium;
}
else if ((Math.Abs(yClose) > outerZone) || (Math.Abs(xClose) > outerZone))
{
threat = ThreatLevel.low;
}
}
void updateScore(FoodType food)
{
BaseTextType text = hud.getText("Add Score Number");
if (!text.DrawText)
{
text.changeNumber(food.Score);
text.startText(time);
}
else
{
text.addToNumber(food.Score);
}
score += food.Score;
hud.getText("Score Number").changeNumber(score);
}
private void movement(SnakeType snake, FoodType food, LevelType level)
{
PortalType portal;
//If the food is in a portal, clear the portal
if (level.tryGetPortal(food.Vector, out portal))
{
portal.clearGrid(level);
}
//Else empty the old grid cell
else
{
level.Grid.GetCell(food.Vector).emptyCell();
}
//Add the movement vector to the current mouse vector
Vector2 newLocation = food.Vector + MovementFunctions.calculateLocation(orientation);
if (level.tryGetPortal(newLocation, out portal))
{
if (!portal.IsFull)
{
food.Vector = newLocation;
portal.fillPortal(food);
}
}
else if (level.Grid.GetCell(newLocation).content == CellContent.snake)
{
if (classification == FoodClassification.threat)
{
snake.GameOver(this, new EventArgs());
}
}
else if (level.Grid.GetCell(newLocation).content == CellContent.empty)
{
food.Vector = newLocation;
}
food.fillGrid(level);
}
public static bool calculateMovement(GameGrid grid, FoodType food, OrientationType orientation)
{
bool move = false;
int x = (int)food.Vector.X;
int y = (int)food.Vector.Y;
switch (orientation)
{
case OrientationType.up:
if (grid.GetCell(x, y - 1).content == CellContent.empty)
{
move = true;
}
break;
case OrientationType.down:
if (grid.GetCell(x, y + 1).content == CellContent.empty)
{
move = true;
}
break;
case OrientationType.right:
if (grid.GetCell(x + 1, y).content == CellContent.empty)
{
move = true;
}
break;
case OrientationType.left:
if (grid.GetCell(x - 1, y).content == CellContent.empty)
{
move = true;
}
break;
}
return(move);
}