//function called when a saying is clicked
public static void SetSelected(bool isKey, ClickableSaying cs)
{
//do nothing if cs allready selected
if (selectedKey == cs)
{
return;
}
else if (selectedValue == cs)
{
return;
}
//sets a given key saying
if (isKey)
{
SetKeySaying(cs);
}
//sets a given value saying
else
{
SetValueSaying(cs);
}
//if both a key and value is selcted, a line has been drawn
//therefore, they are now unselected, so a new line can be drawn
if (selectedValue != null && selectedKey != null)
{
selectedValue.ii.Activate();
selectedKey.ii.Activate();
instance.ConnectTwoSayings(selectedKey.saying, selectedValue.saying);
selectedKey = null;
selectedValue = null;
}
}
//destroys gameobjects not needed after scene, and resets static variables
static void TearDownScene()
{
instance.teardown = true;
foreach (string k in lines.Keys)
{
Line l = lines[k];
GameObject go = l.lineObject;
Destroy(go);
}
lines = null;
selectedKey = null;
selectedValue = null;
colorIndex = 0;
instance = null;
}
//sets a key saying, called from SetSaying
private static void SetKeySaying(ClickableSaying cs)
{
//gets the line connected to a saying
Line l = lines[cs.saying];
//if a clicked key saying is allready in a drawn line, it is now unselected for drawing
if (l.lineTo != null && selectedValue == null)
{
cs.ii.Activate();
l.lineTo.GetComponent <ClickableSaying>().ii.Activate();
l.lineTo = null;
lines[cs.saying] = l;
selectedKey = null;
selectedValue = null;
instance.DisconnectTwoSayings(cs.saying);
return;
}
//if a clicked key saying is allready in a drawn line, but a value saying is selected, a new line is made between the two
else if (l.lineTo != null && selectedValue != null)
{
instance.DisconnectTwoSayings(cs.saying);
instance.ConnectTwoSayings(cs.saying, selectedValue.saying);
l.lineTo = selectedValue.go;
lines[cs.saying] = l;
selectedKey = null;
selectedValue.ii.Activate();
selectedValue = null;
return;
}
//unselects the last chosen saying
if (selectedKey != null)
{
selectedKey.UnselectSaying();
}
selectedKey = cs;
//sets saying as From point in line
l.lineFrom = cs.go;
//sets the key saying to connect to the selected value saying
if (selectedValue != null)
{
l.lineTo = selectedValue.go;
}
lines[cs.saying] = l;
cs.ii.Deactivate();
}
//sets a value saying, called from SetSaying
private static void SetValueSaying(ClickableSaying cs)
{
//iterates over lines to see if values saying is in a drawn line
//if it is, that line will no longer be drawn
Line checkLine;
foreach (string k in lines.Keys)
{
checkLine = lines[k];
if (checkLine.lineTo == null)
{
continue;
}
ClickableSaying valueSaying = checkLine.lineTo.GetComponent <ClickableSaying>();
ClickableSaying keySaying = checkLine.lineFrom.GetComponent <ClickableSaying>();
//if one selects a value saying that is allready connected
if (valueSaying == cs && selectedKey == null)
{
keySaying.ii.Activate();
cs.ii.Activate();
checkLine.lineTo = null;
lines[keySaying.saying] = checkLine;
selectedKey = null;
selectedValue = null;
instance.DisconnectTwoSayings(keySaying.saying);
return;
}
//if one selects a value saying that is connected, while having selected a new key, a new line is drawn between the two
else if (valueSaying == cs && selectedKey != null)
{
keySaying.ii.Activate();
instance.DisconnectTwoSayings(keySaying.saying);
instance.ConnectTwoSayings(selectedKey.saying, cs.saying);
checkLine.lineTo = null;
lines[keySaying.saying] = checkLine;
checkLine = lines[selectedKey.saying];
checkLine.lineTo = cs.go;
lines[selectedKey.saying] = checkLine;
selectedKey.ii.Activate();
selectedKey = null;
selectedValue = null;
return;
}
}
//if another saying is selected, then it is unselected
if (selectedValue != null)
{
selectedValue.UnselectSaying();
}
//if a key is selected, a line is formed
if (selectedKey != null)
{
Line l = lines[selectedKey.saying];
//sets sayig as lineto value
l.lineTo = cs.go;
lines[selectedKey.saying] = l;
}
selectedValue = cs;
cs.ii.Deactivate();
}
