First work on dialogic, resized guild, and started implementing portraits.

addons/dialogic/Modules/Background/Transitions/class_dialogic_background_transition.gd

@@ -0,0 +1,56 @@
+class_name DialogicBackgroundTransition
+extends Node
+
+## Helper
+var this_folder: String = get_script().resource_path.get_base_dir()
+
+
+## Set before _fade() is called, will be the root node of the previous bg scene.
+var prev_scene: Node
+## Set before _fade() is called, will be the viewport texture of the previous bg scene.
+var prev_texture: ViewportTexture
+
+## Set before _fade() is called, will be the root node of the upcoming bg scene.
+var next_scene: Node
+## Set before _fade() is called, will be the viewport texture of the upcoming bg scene.
+var next_texture: ViewportTexture
+
+## Set before _fade() is called, will be the requested time for the fade
+var time: float
+
+## Set before _fade() is called, will be the background holder (TextureRect)
+var bg_holder: DialogicNode_BackgroundHolder
+
+
+signal transition_finished
+
+
+## To be overridden by transitions
+func _fade() -> void:
+	pass
+
+
+func set_shader(path_to_shader:String=DialogicUtil.get_module_path('Background').path_join("Transitions/default_transition_shader.gdshader")) -> ShaderMaterial:
+	if bg_holder:
+		if path_to_shader.is_empty():
+			bg_holder.material = null
+			bg_holder.color = Color.TRANSPARENT
+			return null
+		bg_holder.material = ShaderMaterial.new()
+		bg_holder.material.shader = load(path_to_shader)
+		return bg_holder.material
+	return null
+
+
+func tween_shader_progress(_progress_parameter:="progress") -> PropertyTweener:
+	if !bg_holder:
+		return
+
+	if !bg_holder.material is ShaderMaterial:
+		return
+
+	bg_holder.material.set_shader_parameter("progress", 0.0)
+	var tween := create_tween()
+	var tweener := tween.tween_property(bg_holder, "material:shader_parameter/progress", 1.0, time).from(0.0)
+	tween.tween_callback(emit_signal.bind('transition_finished'))
+	return tweener