Generate cpp code?

[RonYanDaik]

Is there a way to generate c++ code out of this source?
Internet say that Haxe can generate cpp but i can find any helpful examples or documentary.
I want to try to use generated source in UE4.

[Zireael07]

UE4 has a ton of their own macros, so it's unlikely you could use the output.
I have used Haxe with JS and Python targets, and the code generated is mangled so it's next to useless for anything other than using it directly.

[RonYanDaik]

The goal is to convert and use all classes/code, except rendering, to c++ and create then rendering/controling wrappers.
So I've followed these steps for now (if anyone wants to follow):

1. I've installed Neko libs. Because haxelib needs those. (In the command line type: haxelib install hxcpp 4.1.15
2. Then install haxelib install minimingw
3. Then I've created cpp.hxml file in TownGenerator project source directory. File contains:

-p Source
-D windows
-m com.watabou.towngenerator.Main
--cpp outcppsource

4. Then from project directory I'm executing: haxe.exe cpp.hxml

And the result is this.

Source/com/watabou/towngenerator/Main.hx:3: characters 8-34 : Type not found : openfl.system.Capabilities
Source/com/watabou/coogee/Game.hx:3: characters 8-29 : Type not found : openfl.display.Sprite
Source/com/watabou/coogee/Game.hx:4: characters 8-33 : Type not found : openfl.display.StageAlign
Source/com/watabou/coogee/Game.hx:5: characters 8-37 : Type not found : openfl.display.StageScaleMode
Source/com/watabou/coogee/Game.hx:6: characters 8-27 : Type not found : openfl.events.Event
Source/com/watabou/coogee/Game.hx:7: characters 8-28 : Type not found : openfl.system.System

I'm trying to find out if there is openfl c++ version.

The question is: how can I remove all rendering platform-dependend code to compile only "logic" so i could create wrappers with controls and rendering functions?

[Zireael07]

You would have to manually comment out the rendering functions in your copy of the source.

[RonYanDaik]

Ok. Then i need to convert to c++ first.

@Zireael07 if you've converted to JS may be you've seen these errors?

Source/com/watabou/geom/Polygon.hx:25: characters 12-16 : Unknown identifier : last
Source/com/watabou/towngenerator/wards/Ward.hx:96: characters 81-99 : Float should be Int
Source/com/watabou/towngenerator/wards/Ward.hx:96: characters 81-99 : For function argument 'x'

next i had to install:
5. again in the command line:

haxelib install msignal
haxelib install openfl

6. in the cpp.hxml file I've had to add dependencies.

-lib openfl
-lib lime
-lib msignal

Now only listed above errors appear. Could be source Haxe version outdated?

[RonYanDaik]

Yep. looks like it:
https://github.com/watabou/TownGeneratorOS/pull/12/files

now only these 2 have left

Source/com/watabou/towngenerator/wards/Ward.hx:96: characters 81-99 : Float should be Int
Source/com/watabou/towngenerator/wards/Ward.hx:96: characters 81-99 : For function argument 'x'

And here i have no idea what is going on. Don't see any floats or types.

[RonYanDaik]

Source/com/watabou/towngenerator/Main.hx:11: lines 11-33 : Invalid -main : com.watabou.towngenerator.Main does not have static function main

[Oppodelldog]

I was trying to generate C# code form it to reuse this generator in a game, having the same issues.
It would be great to separate a library out of this which could be used in different languages.
A docker image would be awesome to make it easy for people that are not into Haxe.