Support pokecrystal

[huderlem]

Pokecrystal's scripting engine handles conditional logic a bit differently than gen 3. In gen 3, only three commands set the conditional flags (checkflag, compare, and checktrainerflag). As a result, boolean expressions consist purely of the operators flag(), var(), and defeated(). In pokecrystal, tons of scripting commands write conditional flags to wScriptVar. wScriptVar is multipurpose, but all conditional branching uses this variable to determine the action to take.

Rather than defining a key operator, like flag(), for every single command that write conditional flags, Poryscript should accept arbitrary operators in boolean expressions. Then, every command will be rendered using iftrue, iffalse, ifequal, iffalse, ifgreater, and ifless.

Above is probably the most important part, however, many other pieces need to be modified, including:

• Text line breaks (e.g. para, line, etc.)
• Map scripts
• Movement commands
• Auto text formatting.
• Add command-line option to specify gen 2 or 3. Default to 3.\
• Optimize iftrue 0, <label> that occurs with case 0 in switch statement.
• Allow accessing wScriptVar explicitly in conditions via a keyword. (e.g. if (scriptvar < 20))

...and probably more.

[huderlem]

Development is taking place in the gen2 branch.

[huderlem]

I don't think there is any demand for Gen 2 support. I also don't like how different some of the internals are for gen 2's system. IF there is demand in the future, I think I'd rather have a forked repo, rather than support both in one project. I'll keep the gen 2 branch around, in case.