Ajout d'un mode infini

common/game_data/scripts/story_progression_data.gd

@@ -0,0 +1,36 @@
+extends ProgressionData
+class_name StoryProgressionData
+
+@export var planted_mutation_ids: Array[String] = []
+@export var story_step_i := 0
+@export var mutations_unlocked = 8
+
+func get_story_step() -> StoryStep:
+    return get_all_story_steps()[story_step_i]
+
+func get_story_progression() -> float:
+    return max(0,float(story_step_i)) / len(
+        get_all_story_steps()
+    )
+
+func discover_mutation(pm : PlantMutation) -> void:
+    planted_mutation_ids.append(pm.id)
+
+func get_mutations_discovered() -> Array[String]:
+    return planted_mutation_ids
+
+func next_story_step() -> void:
+    get_story_step()._on_finish()
+    if story_step_i + 1 < len(get_all_story_steps()):
+        story_step_i += 1
+
+func get_available_mutations() -> Array[PlantMutation]:
+    return get_all_mutations().slice(0, mutations_unlocked)
+
+func are_all_mutations_unlocked() -> bool:
+    return mutations_unlocked >= len(get_all_mutations())
+
+func unlock_new_mutation() -> PlantMutation:
+    var new_mutation = get_all_mutations()[mutations_unlocked]
+    mutations_unlocked += 1
+    return new_mutation