Merge pull request #3259 from moisesjpelaez/general_fixes

General changes

Author: luboslenco

armory/Sources/iron/App.hx

@@ -28,7 +28,8 @@ class App {
 	static var time = 0.0;
 	static var lastw = -1;
 	static var lasth = -1;
-	public static var onResize: Void->Void = null;
+	public static var onResize: Void->Void = null; // TODO: deprecate this. Use armory.system.Signal 'resized' instead.
+	public static var resized: armory.system.Signal = new armory.system.Signal(); // args: (w: Int, h: Int)
 
 	public static function init(done: Void->Void) {
 		new App(done);
@@ -60,6 +61,7 @@ class App {
 			lasth = App.h();
 		}
 		if (lastw != App.w() || lasth != App.h()) {
+			resized.emit(App.w(), App.h());
 			if (onResize != null) onResize();
 			else {
 				if (Scene.active != null && Scene.active.camera != null) {

armory/blender/arm/make_world.py

@@ -38,6 +38,10 @@ def build():
     wrd = bpy.data.worlds['Arm']
     rpdat = arm.utils.get_rp()
 
+    if rpdat is None:
+        log.error("No render path found. Please ensure a valid render path is selected.")
+        return
+
     mobile_mat = rpdat.arm_material_model == 'Mobile' or rpdat.arm_material_model == 'Solid'
     envpath = os.path.join(arm.utils.get_fp_build(), 'compiled', 'Assets', 'envmaps')