/// For if- and elsif- statements.
void Script::HandleConditional(String line)
{
// Remove first part until (
int index = line.Find('(');
line = line.Part(index);
/// Use expressions from the MathLib. First parse for functions to provide their values? Or...
Expression exp;
List<Variable> allVars = GameVars.GetAllExpressionVariables() + variables;
exp.functionEvaluators = functionEvaluators; // Set evaluators.
bool parseOK = exp.ParseExpression(line);
if (!parseOK)
{
std::cout<<"\nParse error in expression "<<line;
return;
}
ExpressionResult res = exp.Evaluate(allVars);
bool statementTrue = res.GetBool();
/// If statement is true, sign this row as finished.
if (statementTrue)
{
// Set line finished to true so the actual content will be processed.
lineFinished = true;
// Set if-Processed to true so that no elsif- or else- clause will be handled.
ScriptLevel & latest = stack.Last();
latest.evaluatedAtLine = currentLine;
}
else
{
// Check stuff.
ScriptLevel & sl = stack.Last();
int newRow = -1;
int ifStack = 0;
// If the statement is not true, find an else or endif block..!
for (int i = currentLine+1; i < lines.Size(); ++i)
{
String l = lines[i];
if (sl.type == ScriptLevel::WHILE_LOOP)
{
if (l.Contains("endwhile"))
{
// Jump to next after, as regular stopping on endwhile will reboot the loop
newRow = i + 1;
stack.RemoveLast();
break;
}
}
if (sl.type == ScriptLevel::IF_CLAUSE)
{
if (l.Contains("elsif") || l.Contains("else") || l.Contains("endif"))
{
if (ifStack == 0)
{
newRow = i;
break;
}
if (l.Contains("endif"))
--ifStack;
}
else if (l.Contains("if"))
++ifStack;
}
}
assert(newRow > 0);
// Process it next iteration.
currentLine = newRow;
lineProcessed = false;
lineFinished = false;
return;
}
if (lineFinished == false)
assert(false && "Line not finished? Something is missing in the if/else/endif block!");
}
void Script::EvaluateLine(String & line)
{
/// Default line processed once?
lineProcessed = true;
line.SetComparisonMode(String::NOT_CASE_SENSITIVE);
// "80Gray50Alpha.png"
#define DEFAULT_TEXTURE_SOURCE "black50Alpha.png"
#define DEFAULT_TEXT_SIZE_RATIO 0.3f
/// Some state began, take not of it?
if (line.Contains("Wait("))
{
WaitScript * wait = new WaitScript(line, this);
wait->SetDeleteOnEnd(true);
ScriptMan.PlayScript(wait);
}
else if (line.StartsWith("Key:"))
{
String keyStr = line.Tokenize(":")[1];
keyStr.RemoveSurroundingWhitespaces();
int keyCode = GetKeyForString(keyStr);
assert(keyCode != 0);
InputMan.KeyDown(MainWindow(), keyCode, false);
InputMan.KeyUp(MainWindow(), keyCode);
lineFinished = true;
}
else if (line.Contains("PlayScript("))
{
List<String> tokens = line.Tokenize("(),");
// Source of script within the parenthesis.
String source = tokens[1];
bool wait = true;
Script * scriptParent = this;
if (tokens.Size() >= 3)
{
wait = tokens[2].ParseBool();
if (!wait)
{
scriptParent = NULL;
this->lineFinished = true;
}
}
Script * script = new Script(source, scriptParent);
script->source = source;
bool loaded = script->Load();
assert(loaded);
ScriptMan.PlayScript(script);
}
else if (line == "DisableActiveUI")
{
InputMan.DisableActiveUI();
lineFinished = true;
uiDisabled = true;
}
else if (line == "EnableActiveUI")
{
InputMan.EnableActiveUI();
lineFinished = true;
}
else if (line.Contains("PreloadTexturesInDirectory("))
{
// Fetch the stuff, do the buff
String dir = line.Tokenize("()")[1];
List<String> files;
int num = GetFilesInDirectory(dir, files);
for (int i = 0; i < files.Size(); ++i)
{
String path = dir + "/" + files[i];
Texture * tex = TexMan.LoadTexture(path);
Graphics.QueueMessage(new GMBufferTexture(tex));
}
lineFinished = true;
}
else if (line.Contains("Begin("))
{
String stateBeginning = line.Tokenize("()")[1];
if (stateBeginning == "Cutscene")
{
BeginCutscene();
}
lineFinished = true;
}
else if (line.Contains("End("))
{
String stateEnding = line.Tokenize("()")[1];
if (stateEnding == "Cutscene")
{
EndCutscene();
}
lineFinished = true;
}
else if (line.Contains("EndScript"))
{
// End it.
scriptState = ENDING;
}
else if (line.Contains("EnterGameState("))
{
String name = line.Tokenize("()")[1];
StateChanger * changer = new StateChanger(line, this);
ScriptMan.PlayScript(changer);
}
else if (line.Contains("FadeTo(") || line.Contains("FadeIn("))
{
FadeInEffect * fade = new FadeInEffect(line, this);
ScriptMan.PlayScript(fade);
}
else if (line.Contains("FadeInBackground("))
{
FadeInBackground * fade = new FadeInBackground(line, this);
ScriptMan.PlayScript(fade);
}
else if (line.Contains("FadeOutBackground("))
{
FadeOutBackground * fade = new FadeOutBackground(line, this);
ScriptMan.PlayScript(fade);
}
else if (line.Contains("FadeOut"))
{
FadeOutEffect * fade = new FadeOutEffect(line, this);
ScriptMan.PlayScript(fade);
}
else if (line.Contains("FadeText("))
{
FadeTextEffect * text = new FadeTextEffect(line, this);
ScriptMan.PlayScript(text);
lineFinished = true;
}
else if (line.Contains("PlaySong("))
{
// Just play it.
String song = line.Tokenize("()")[1];
TrackMan.PlayTrack(song);
// Line finished straight away.
lineFinished = true;
}
else if (line.Contains("Dialogue")){
/// If raw string, output it straight away! (should later be queued to some kind of dialogue-manager?)
if (line.Contains("\"")){
/// Create dialogue UI and append it to the current UI!
String text = line.Tokenize("\"")[1];
std::cout<<"\n"<<text;
UIButton * dialogue = new UIButton("Dialogue");
dialogue->exitable = false;
dialogue->text = text;
dialogue->activationMessage = "PopFromStack(this)&Remove(this)&ContinueEvent("+this->name+")";
dialogue->textureSource = DEFAULT_TEXTURE_SOURCE;
dialogue->textSizeRatio = DEFAULT_TEXT_SIZE_RATIO;
dialogue->sizeRatioY = 0.3f;
dialogue->alignmentY = 0.15f;
dialogue->state |= UIState::DIALOGUE; // Flag the dialogue-state flag to signify importance!
Graphics.QueueMessage(new GMAddUI(dialogue, "root"));
Graphics.QueueMessage(GMPushUI::ToUI("Dialogue", ActiveUI()));
}
/// If no quotes, load the specified dialogue-file and begin processing that instead, waiting until it is finished.!
else {
/// Give the npc a dialogue?
// assert(false);
// Send it tot he state too, to attach to the appropriate thingymajig.
Message * message = new Message(line);
/// Set this event as
message->scriptOrigin = this;
MesMan.QueueMessage(message);
/// Instant thingies.
lineFinished = true;
}
}
else if (line.Contains("Answer")){
/// Go to EndAnswers..!
lineFinished = true;
for (int i = currentLine; i < lines.Size(); ++i){
String line = lines[i];
if (line.Contains("EndAnswers")){
currentLine = i;
lineFinished = true;
return;
}
}
assert(false && "No EndAnswers found? No good, jaow ;___;");
}
else if (line.Contains("BeginAlternatives") || line.Contains("BeginQuestion")){
/// Create dialogue UI and append it to the current UI!
String text = line.Tokenize("\"")[1];
std::cout<<"\n"<<text;
UIElement * dialogue = new UIElement();
dialogue->exitable = false;
dialogue->name = "AlternativesDialogue";
// dialogue->activationMessage = "Remove(this)&ContinueEvent("+this->name+")";
dialogue->textureSource = DEFAULT_TEXTURE_SOURCE;
dialogue->sizeRatioY = 0.3f;
dialogue->alignmentY = 0.15f;
dialogue->state |= UIState::DIALOGUE; // Flag the dialogue-state flag to signify importance!
UILabel * dialogueText = new UILabel();
dialogueText->text = text;
dialogueText->textSizeRatio = DEFAULT_TEXT_SIZE_RATIO;
dialogueText->sizeRatioX = 0.5f;
dialogueText->alignmentX = 0.25f;
dialogue->AddChild(dialogueText);
UIList * dialogueAnswerList = new UIList();
dialogueAnswerList->sizeRatioX = 0.5f;
dialogueAnswerList->alignmentX = 0.75f;
dialogue->AddChild(dialogueAnswerList);
int answers = 0;
List<UIElement*> answerList;
// Parse and add answers
for (int i = currentLine+1; i < lines.Size(); ++i){
String l = lines[i];
l.SetComparisonMode(String::NOT_CASE_SENSITIVE);
List<String> tokens = l.Tokenize(" ");
String token1 = tokens[0];
token1.SetComparisonMode(String::NOT_CASE_SENSITIVE);
if (token1 == "text"){
l.Remove(token1);
dialogueText->text = l;
dialogueText->text.RemoveInitialWhitespaces();
dialogueText->text.Remove("\"");
dialogueText->text.Remove("\"");
}
else if (l.Contains("Answer")){
++answers;
UIButton * answerButton = new UIButton();
answerButton->name = token1;
l.Remove("Answer");
l.RemoveInitialWhitespaces();
l.Remove("\"");
l.Remove("\"");
answerButton->textureSource = DEFAULT_TEXTURE_SOURCE;
answerButton->text = l;
answerButton->sizeRatioY = 0.2f;
answerButton->activationMessage = "ActivateDialogueAlternative("+name+","+answerButton->name+")&PopFromStack("+dialogue->name+")&Remove("+dialogue->name+")";
answerList.Add(answerButton);
}
else if (l.Contains("EndAlternatives")){
// Donelir. o-o
break;
}
else {
assert(false && "Bad line! Should only be Answer before EndAlternatives!");
}
}
assert(answers);
float sizeRatioY = 0.95f / answers;
for (int i = 0; i < answers; ++i){
UIElement * ans = answerList[i];
// ans->sizeRatioY = sizeRatioY; // Stupid to set the sizeRatioY to be this dynamic, yo.
dialogueAnswerList->AddChild(ans);
}
isInAlternativeDialogue = true;
Graphics.QueueMessage(new GMAddUI(dialogue, "root"));
Graphics.QueueMessage(GMPushUI::ToUI(dialogue, ActiveUI()));
}
else if (line.Contains("elsif") || line.Contains("elseif") || line.Contains("else if"))
{
/// Should be in an if-stack, check if we already evaluated.
ScriptLevel sl = stack.Last();
assert(sl.type == ScriptLevel::IF_CLAUSE);
/// If already evaluated, jump to endif.
if (sl.evaluatedAtLine > 0)
{
// Jump to endif.
JumpToEndif();
return;
}
/// If not, handle the conditional first.
HandleConditional(line);
}
else if (line.Contains("if(") || line.Contains("if ("))
{
// Add to stack.
stack.AddItem(ScriptLevel(ScriptLevel::IF_CLAUSE, currentLine));
HandleConditional(line);
}
else if (line.Contains("else"))
{
// if (ifProcessed)
// JumpToEndif();
ScriptLevel sl = stack.Last();
assert(sl.type == ScriptLevel::IF_CLAUSE);
if (sl.evaluatedAtLine > 0)
{
JumpToEndif();
return;
}
lineFinished = true;
return;
}
else if (line.Contains("endif"))
{
ScriptLevel sl = stack.Last();
assert(sl.type == ScriptLevel::IF_CLAUSE);
stack.RemoveLast();
lineFinished = true;
}
else if (line.Contains("endwhile"))
{
// Go to start!
ScriptLevel sl = stack.Last();
assert(sl.type == ScriptLevel::WHILE_LOOP);
currentLine = sl.evaluatedAtLine;
String startLine = lines[currentLine];
HandleConditional(startLine);
// lineFinished = true;
// Evaluate?
// stack.RemoveLast();
}
else if (line.Contains("while"))
{
stack.AddItem(ScriptLevel(ScriptLevel::WHILE_LOOP, currentLine));
HandleConditional(line);
}
/* else if (line.Contains("CreateInt")){
List<String> tokens = line.Tokenize(" \t");
String varName = tokens[1];
int initialValue = 0;
if (tokens.Size() >= 3)
initialValue = tokens[2].ParseInt();
if (!GameVars.Get(varName)){
GameVars.CreateInt(varName, initialValue);
}
lineFinished = true;
}
/*
else if (line.Contains("SetInt ")){
List<String> tokens = line.Tokenize(" \t");
String varName = tokens[1];
int value = tokens[2].ParseInt();
GameVars.SetInt(varName, value);
lineFinished = true;
}*/
else if (line.Contains("Repeatable")){
/// Flag the event as repeatable.
repeatable = true;
lineFinished = true;
}
// Consider just making an else-clause for all remaining events to be processed by the specific game instead?
else if (
line.Contains("SpawnEntity") ||
line.Contains("OnApproach") ||
line.Contains("OnInteract") ||
line.Contains("DisableMovement") ||
line.Contains("EnableMovement") ||
line.Contains("Zone(") ||
line.Contains("PlacePlayer(") ||
line.Contains("TrackPlayer")
)
{
Message * message = new Message(line);
/// Set this event as
message->scriptOrigin = this;
MesMan.QueueMessage(message);
/// Instant thingies.
lineFinished = true;
}
else {
/// Try evaluate it as an expression.
Expression exp;
List<Variable> allVars = GameVars.GetAllExpressionVariables() + variables;
exp.functionEvaluators = functionEvaluators; // Set evaluators.
bool parseOK = exp.ParseExpression(line);
if (line.Contains("SetMovementPattern"))
int p = 4;;
if (parseOK)
{
ExpressionResult res = exp.Evaluate(allVars);
/// Continue until it returns true! o.o
if (res.type != DataType::NO_TYPE)
{
if (res.GetBool() == true)
{
lineFinished = true;
return;
}
}
}
// std::cout<<"\nUndefined event command: "<<line;
// std::cout<<"\nPassing it as a custom command to the game states for further processing.";
Message * message = new Message(line);
/// Set this event as source of it.
message->scriptOrigin = this;
MesMan.QueueMessage(message);
lineFinished = true;
// assert(false && "Undefined event command!");
};
}
