public void init(int divisionsOverWidth)
{
for (int i = 0; i < managedDivisions.Length; i++)
{
managedDivisions[i] = new CollisionDivision();
}
width = chart.getAIMesh().getWidth();
height = chart.getAIMesh().getHeight();
// Get the square root of the division count. This is why it requires to be squared. (It's a map of 3x3 by default)
//CORE_INFO("CollisionHandler has %d divisions.", divisionsOverWidth*divisionsOverWidth);
divisionCount = divisionsOverWidth;
// Setup the division dimensions
for (int y = 0; y < divisionsOverWidth; y++)
{
for (int x = 0; x < divisionsOverWidth; x++)
{
managedDivisions[y * divisionsOverWidth + x].min.X = x * (width / divisionsOverWidth);
managedDivisions[y * divisionsOverWidth + x].min.Y = y * (height / divisionsOverWidth);
managedDivisions[y * divisionsOverWidth + x].max.X = (x + 1) * (width / divisionsOverWidth);
managedDivisions[y * divisionsOverWidth + x].max.Y = (y + 1) * (height / divisionsOverWidth);
managedDivisions[y * divisionsOverWidth + x].objectCount = 0;
}
}
}
public void init(int divisionsOverWidth)
{
for (int i = 0; i < managedDivisions.Length; i++)
managedDivisions[i] = new CollisionDivision();
width = chart.getAIMesh().getWidth();
height = chart.getAIMesh().getHeight();
// Get the square root of the division count. This is why it requires to be squared. (It's a map of 3x3 by default)
//CORE_INFO("CollisionHandler has %d divisions.", divisionsOverWidth*divisionsOverWidth);
divisionCount = divisionsOverWidth;
// Setup the division dimensions
for (int y = 0; y < divisionsOverWidth; y++)
{
for (int x = 0; x < divisionsOverWidth; x++)
{
managedDivisions[y * divisionsOverWidth + x].min.X = x * (width / divisionsOverWidth);
managedDivisions[y * divisionsOverWidth + x].min.Y = y * (height / divisionsOverWidth);
managedDivisions[y * divisionsOverWidth + x].max.X = (x + 1) * (width / divisionsOverWidth);
managedDivisions[y * divisionsOverWidth + x].max.Y = (y + 1) * (height / divisionsOverWidth);
managedDivisions[y * divisionsOverWidth + x].objectCount = 0;
}
}
}
public void addObject(GameObject obj)
{
if (divisionCount == -1) // If we have not initialised..
{
Logger.LogCoreError("Tried to add an object before we initialised the CollisionHandler!");
return;
}
if (obj.getMap() != chart)
{
Logger.LogCoreInfo("Map is adding an object that is not healthy. His map pointer is " + obj.getMap() + " (not " + chart + "). Not adding it.");
return;
}
float divX = obj.getPosition().X / (float)(width / divisionCount); // Get the division position.
float divY = obj.getPosition().Y / (float)(height / divisionCount);
int divi = (int)divY * divisionCount + (int)divX;
if (divX < 0 || divX > divisionCount || divY < 0 || divY > divisionCount) // We're not inside the map! Add to the unmanaged objects.
{
Logger.LogCoreError("Object spawned outside of map. (" + obj.getPosition().X + ", " + obj.getPosition().Y + ")");
//addUnmanagedObject(object);
}
else
{
addToDivision(obj, (int)divX, (int)divY);
CollisionDivision curDiv = managedDivisions[divi];
bool a = false, b = false;
if (Math.Abs(obj.getPosition().X - curDiv.max.X) < obj.getCollisionRadius()) // Are we in the one to the right?
{
addToDivision(obj, (int)divX + 1, (int)divY); // Add it there too.
}
if (Math.Abs(obj.getPosition().X - curDiv.min.X) < obj.getCollisionRadius()) // Maybe on the left?
{
a = true;
addToDivision(obj, (int)divX - 1, (int)divY);
}
if (Math.Abs(obj.getPosition().Y - curDiv.max.Y) < obj.getCollisionRadius()) // Are we touching below us?
{
addToDivision(obj, (int)divX, (int)divY + 1);
}
if (Math.Abs(obj.getPosition().Y - curDiv.min.Y) < obj.getCollisionRadius()) // Or above?
{
b = true;
addToDivision(obj, (int)divX, (int)divY - 1);
}
if (a && b) // If we are touching all four, add the left-upper one.
{
b = true;
addToDivision(obj, (int)divX - 1, (int)divY - 1);
}
}
}
private void correctDivisions(int pos)
{
CollisionDivision curDiv = managedDivisions[pos];
for (int j = 0; j < curDiv.objects.Count; j++) // For all objects inside this division
{
var o = curDiv.objects[j];
if (o != null)
//if (o->isMovementUpdated()) // Only check if they moved around.
{
while (o.getMap().getId() != chart.getId())
{
Logger.LogCoreWarning("I have found an object that is not healthy. His map pointer is " + o.getMap().getId() + " (not " + chart.getId() + "). Removing it from the database (" + j + "/" + curDiv.objects.Count + " in div " + pos + ").");
removeObject(o);
if (j < curDiv.objects.Count)
{
o = curDiv.objects[j];
}
else
{
break;
}
}
// If they are no longer in this division..
if ((o.getPosition().X - o.getCollisionRadius() > curDiv.max.X || o.getPosition().Y - o.getCollisionRadius() > curDiv.max.Y ||
o.getPosition().X + o.getCollisionRadius() < curDiv.min.X || o.getPosition().Y + o.getCollisionRadius() < curDiv.min.Y))
{
removeFromDivision(o, pos); // Remove them from it.
addObject(o); // Reset in what divisions this object is.
}
// If they've entered another division, but not left this one yet..
else if ((o.getPosition().X + o.getCollisionRadius() > curDiv.max.X || o.getPosition().Y + o.getCollisionRadius() > curDiv.max.Y ||
o.getPosition().X - o.getCollisionRadius() < curDiv.min.X || o.getPosition().Y - o.getCollisionRadius() < curDiv.min.Y))
{
addObject(o); // Reset in what divisions this object is.
}
}
}
}
public void getDivisions(GameObject obj, CollisionDivision[] divs, out int divCount)
{
for (int i = 0; i < 4; i++) // Prepare the divisions
{
divs[i] = null;
}
divCount = 0; // How many divisions the object is in.
float divX = obj.getPosition().X / (float)(width / divisionCount);
float divY = obj.getPosition().Y / (float)(height / divisionCount);
int divi = (int)divY * divisionCount + (int)divX; // Current division index
if (divY >= 0 && divY < divisionCount) // If we're inside the map
{
divs[divCount] = managedDivisions[divi];
divCount++;
}
// Below is same principle from addObject.
bool a = false, b = false;
var curDiv = managedDivisions[divi];
if (Math.Abs(obj.getPosition().X - curDiv.max.X) < obj.getCollisionRadius() && divX + 1 >= 0 && divX + 1 < divisionCount)
{
divs[divCount] = managedDivisions[(int)divY * divisionCount + (int)divX + 1];
divCount++;
}
else if (Math.Abs(obj.getPosition().X - curDiv.min.X) < obj.getCollisionRadius() && divX - 1 >= 0 && divX - 1 < divisionCount)
{
divs[divCount] = managedDivisions[(int)divY * divisionCount + (int)divX - 1];
divCount++;
a = true;
}
if (Math.Abs(obj.getPosition().Y - curDiv.max.Y) < obj.getCollisionRadius() && divY + 1 >= 0 && divY + 1 < divisionCount)
{
divs[divCount] = managedDivisions[(int)divY * divisionCount + (int)divX + 1];
divCount++;
}
else if (Math.Abs(obj.getPosition().Y - curDiv.min.Y) < obj.getCollisionRadius() && divY - 1 >= 0 && divY - 1 < divisionCount)
{
divs[divCount] = managedDivisions[(int)divY * divisionCount + (int)divX + 1];
divCount++;
b = true;
}
if (a && b && divX + 1 >= 0 && divX + 1 < divisionCount)
{
divs[divCount] = managedDivisions[(int)divY * divisionCount + (int)divX + 1];
divCount++;
}
}
