matt-attack/jetscript

A simple scripting language for C++

jetscript's Issues

Negative function parameter

When you add negative function parameter to a script command, I lost some values in c++. Here's an example :

I have a script command, and second parameter of that command is negative number(-100).

effect_move("bat",-100,120,6);

The output returns first parameter, which is a string as number, same as second parameter.

(*_ScriptContext)["effect_move"] = [](Jet::JetContext* context, Jet::Value* arguments, int numarguments)
{
        Jet::Value a = arguments[0];   // Number , -100 <- Lost string value
        Jet::Value b = arguments[1];   // Number , -100
        Jet::Value c = arguments[2];   // Number , 120
        Jet::Value d = arguments[3];   // Number , 6
};

But when you use negative number as variable(num), everything works ok.

    num = -100;
    effect_move("bat",num,120,6);

(*_ScriptContext)["effect_move"] = [](Jet::JetContext* context, Jet::Value* arguments, int numarguments)
{
        Jet::Value a = arguments[0];   // String, "bat" <- OK 
        Jet::Value b = arguments[1];   // Number , -100
        Jet::Value c = arguments[2];   // Number , 120
        Jet::Value d = arguments[3];   // Number , 6
};

ps. keep up the good work, this scripting language rocks !

C++ function call with parameter

I want to call script function and pass parameter to it, but it returns Null . I don't know if my JetContext call is wrong, so I hope this can be resolved. Here's example from my test :

Call from c++ :

// Don't know if this is a right way to pass parameters to script function
_ScriptContext->Call("onUpdate", new Jet::Value(dt),1); // dt is float

Script :

fun onUpdate(delta)
{
    print(delta);
} 

Return in console : Null

Thanks in advance

Fix on 64 bit linux

Currently dies with

Jet Language Console:
jetscript: malloc.c:2394: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0) || ((unsigned long) (old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) old_end & (pagesize - 1)) == 0)' failed.
Aborted

Add switch statements

Unneeded Close instructions included

Need to only include close instructions when needed.

Incorrect Handling of Arbitrary Exceptions During Execution

Throwing a non-Jet exception during execution of a native function is not handled correctly.

Is there a way to set/get global script variables from c++ by name ?

Is there a way to set/get global script variables from c++ by name ? I've to get JetContext variables but I don't see where I can do that. It would be great if there is a mehod for setting/getting variable from c++, something like :

class JetContext

void addVariable(string name,Jet::Value Value);
Jet::Value getVariable(name);

Maybe there is a way but I can't figure it out from source :(
Thanks in advance

ps. I'm using jet scripting for a small game that I'm about to make, and this is realy nice because syntax is more like squirrel script (don't like lua syntax much ), but easier to setup,bind and run than squirrel script. So thanks for your efforts 👍

Move to use CMake instead of Visual Studio

Add + operator overload for strings and more string functions

Call from script to c++

I really like this scripting language, this is exactly what i need for my project, so thanks for sharing. I have one question : Will there be possible to call from script to c++ ? Thanks in advance...

Add _call metamethod