private Vector3 GetBoxPositionForAgent(int agentID, Vector2 boxDimensions, bool tryAbove, ref bool positionValid, ref Vector2 tailOffset)
{
Vector3 boxPosition = Vector3.zero;
BaseAgent agent = null;
Vector3 agentPosition = Vector3.zero;
float agentHeight = 0f;
float halfAgentHeight = 0f;
bool fitsAbove = false;
bool fitsBelow = false;
Vector3 cameraPosition = Vector3.zero;
float cameraTop = 0f;
float cameraBottom = 0f;
float cameraLeft = 0f;
float cameraRight = 0f;
float boxTop = 0f;
float boxBottom = 0f;
float halfBoxWidth = 0f;
float halfBoxHeight = 0f;
positionValid = false;
if (cameraObject != null)
{
if (agentID == BaseAgent.INVALID_AGENT_ID)
{
/*halmeida - A box for system text display is always shown horizontally centered at the screen and with its
* top at a fixed, predetermined position.*/
cameraPosition = cameraObject.transform.position;
boxPosition.x = cameraPosition.x;
boxPosition.y = cameraPosition.y + systemBoxTopOffset - boxDimensions.y / 2f;
positionValid = true;
}
else
{
if (stage != null)
{
agent = stage.GetAgent(agentID);
if (agent != null)
{
/*halmeida - gotta place the box at a position that relates to the agent's position, is within the
* camera, and tries to respect the above/bellow orientation.*/
halfBoxHeight = boxDimensions.y / 2f;
agentPosition = agent.gameObject.transform.position;
agentHeight = agent.GetHeight();
halfAgentHeight = agentHeight / 2f;
cameraPosition = cameraObject.transform.position;
cameraTop = cameraPosition.y + cameraHalfHeight;
boxTop = agentPosition.y + halfAgentHeight + tailHeight + boxDimensions.y;
fitsAbove = !(boxTop > cameraTop);
cameraBottom = cameraPosition.y - cameraHalfHeight;
boxBottom = agentPosition.y - halfAgentHeight - tailHeight - boxDimensions.y;
fitsBelow = !(boxBottom < cameraBottom);
if (fitsAbove && fitsBelow)
{
if (tryAbove)
{
boxPosition.y = boxTop - halfBoxHeight;
tailOffset.y = -(halfBoxHeight + tailHalfHeight);
}
else
{
boxPosition.y = boxBottom + halfBoxHeight;
tailOffset.y = halfBoxHeight + tailHalfHeight;
}
}
else if (fitsAbove)
{
boxPosition.y = boxTop - halfBoxHeight;
tailOffset.y = -(halfBoxHeight + tailHalfHeight);
}
else if (fitsBelow)
{
boxPosition.y = boxBottom + halfBoxHeight;
tailOffset.y = halfBoxHeight + tailHalfHeight;
}
else
{
if ((cameraTop - agentPosition.y) >= (agentPosition.y - cameraBottom))
{
boxPosition.y = cameraTop - halfBoxHeight;
tailOffset.y = -(halfBoxHeight + tailHalfHeight);
}
else
{
boxPosition.y = cameraBottom + halfBoxHeight;
tailOffset.y = halfBoxHeight + tailHalfHeight;
}
}
/*halmeida - the y position is set, now we discover the x.*/
boxPosition.x = agentPosition.x;
halfBoxWidth = boxDimensions.x / 2f;
cameraRight = cameraPosition.x + cameraHalfWidth;
if ((agentPosition.x + halfBoxWidth) > cameraRight)
{
boxPosition.x = cameraRight - halfBoxWidth;
}
cameraLeft = cameraPosition.x - cameraHalfWidth;
if ((agentPosition.x - halfBoxWidth) < cameraLeft)
{
boxPosition.x = cameraLeft + halfBoxWidth;
}
tailOffset.x = agentPosition.x - boxPosition.x;
if (((boxPosition.x + tailOffset.x) + tailHalfWidth) > cameraRight)
{
tailOffset.x = halfBoxWidth - tailHalfWidth;
}
if (((boxPosition.x + tailOffset.x) - tailHalfWidth) < cameraLeft)
{
tailOffset.x = -halfBoxWidth + tailHalfWidth;
}
positionValid = true;
}
}
}
}
return(boxPosition);
}