/**
* Checks if map coordinates X,Y,Z are on screen.
* @param mapPos Coordinates to check.
* @return True if the map coordinates are on screen.
*/
bool Camera::isOnScreen(const Position &mapPos) const
{
Position screenPos;
convertMapToScreen(mapPos, &screenPos);
screenPos.x += _mapOffset.x;
screenPos.y += _mapOffset.y;
return screenPos.x >= -24
&& screenPos.x <= _screenWidth + 24
&& screenPos.y >= -32
&& screenPos.y <= _screenHeight - 48;
}
/**
* Convert voxel coordinates X,Y,Z to screen positions X, Y.
* @param voxelPos X,Y,Z coordinates on the voxel.
* @param screenPos to screen position.
*/
void Camera::convertVoxelToScreen(const Position &voxelPos, Position *screenPos) const
{
Position mapPosition = Position(voxelPos.x / 16, voxelPos.y / 16, voxelPos.z / 24);
convertMapToScreen(mapPosition, screenPos);
double dx = voxelPos.x - (mapPosition.x * 16);
double dy = voxelPos.y - (mapPosition.y * 16);
double dz = voxelPos.z - (mapPosition.z * 24);
screenPos->x += (int)(dx - dy) + (_spriteWidth/2);
screenPos->y += (int)(((_spriteHeight / 2.0)) + (dx / 2.0) + (dy / 2.0) - dz);
screenPos->x += _mapOffset.x;
screenPos->y += _mapOffset.y;
}
/**
* Center map on a certain position.
* @param mapPos Position to center on.
* @param redraw Redraw map or not.
*/
void Camera::centerOnPosition(const Position &mapPos, bool redraw)
{
Position screenPos;
_center = mapPos;
minMaxInt(&_center.x, -1, _mapLength);
minMaxInt(&_center.y, -1, _mapWidth);
convertMapToScreen(_center, &screenPos);
_mapOffset.x = -(screenPos.x - (_screenWidth / 2));
_mapOffset.y = -(screenPos.y - (_visibleMapHeight / 2));
_mapOffset.z = _center.z;
if (redraw) _map->draw();
}
/**
* Checks if map coordinates X,Y,Z are on screen.
* @param mapPos Coordinates to check.
* @param unitWalking True to offset coordinates for a unit walking.
* @param unitSize size of unit (0 - single, 1 - 2x2, etc, used for walking only
* @param boundary True if it's for caching calculation
* @return True if the map coordinates are on screen.
*/
bool Camera::isOnScreen(const Position &mapPos, const bool unitWalking, const int unitSize, const bool boundary) const
{
Position screenPos;
convertMapToScreen(mapPos, &screenPos);
int posx = _spriteWidth/2, posy = _spriteHeight - _spriteWidth/4;
int sizex = _spriteWidth/2, sizey = _spriteHeight/2;
if (unitSize > 0)
{
posy -= _spriteWidth /4;
sizex = _spriteWidth*unitSize;
sizey = _spriteWidth*unitSize/2;
}
screenPos.x += _mapOffset.x + posx;
screenPos.y += _mapOffset.y + posy;
if (unitWalking)
{
/* pretty hardcoded hack to handle overlapping by icons
(they are always in the center at the bottom of the screen)
Free positioned icons would require more complex workaround.
__________
|________|
|| ||
|| ____ ||
||_|XX|_||
|________|
*/
if (boundary) //to make sprite updates even being slightly outside of screen
{
sizex += _spriteWidth;
sizey += _spriteWidth/2;
}
if ( screenPos.x < 0 - sizex
|| screenPos.x >= _screenWidth + sizex
|| screenPos.y < 0 - sizey
|| screenPos.y >= _screenHeight + sizey ) return false; //totally outside
int side = ( _screenWidth - _map->getIconWidth() ) / 2;
if ( (screenPos.y < (_screenHeight - _map->getIconHeight()) + sizey) ) return true; //above icons
if ( (side > 1) && ( (screenPos.x < side + sizex) || (screenPos.x >= (_screenWidth - side - sizex)) ) ) return true; //at sides (if there are any)
return false;
}
else
{
return screenPos.x >= 0
&& screenPos.x <= _screenWidth - 10
&& screenPos.y >= 0
&& screenPos.y <= _screenHeight - 10;
}
}
/**
* Checks if map coordinates X,Y,Z are on screen.
* @param mapPos Coordinates to check.
* @param unitWalking True to offset coordinates for a unit walking.
* @return True if the map coordinates are on screen.
*/
bool Camera::isOnScreen(const Position &mapPos, const bool unitWalking) const
{
Position screenPos;
convertMapToScreen(mapPos, &screenPos);
screenPos.x += _mapOffset.x;
screenPos.y += _mapOffset.y;
if (unitWalking)
{
return screenPos.x >= -48
&& screenPos.x <= _screenWidth + 24
&& screenPos.y >= -56
&& screenPos.y <= _screenHeight + 12;
}
else
{
return screenPos.x >= 0
&& screenPos.x <= _screenWidth - 10
&& screenPos.y >= 0
&& screenPos.y <= _screenHeight - 10;
}
}
