Implements procedural ground tile generation

Adds procedural ground tile generation with chunking for improved performance.

Includes:
- Ground tile entity with debug text and cell information
- Grass and tree placement based on cell data
- Ground shader for visual representation
- Chunk loading and unloading system based on player position

Utilities/Random/RandomClass.gd

@@ -0,0 +1,56 @@
+extends Node
+
+class_name RandomClass
+
+var _rng: RandomNumberGenerator = RandomNumberGenerator.new()
+
+func _ready():
+		randomize()
+		print("Global RNG initialized with seed: ", _rng.seed)
+
+# Set a specific seed for reproducible results
+func set_seed(seed_value: int) -> void:
+		_rng.seed = seed_value
+		print("RNG seed set to: ", seed_value)
+
+# Randomize the seed (for non-reproducible results)
+func randomize() -> void:
+		_rng.randomize()
+		print("RNG seed randomized to: ", _rng.seed)
+
+# Get the current seed value
+func get_seed() -> int:
+		return _rng.seed
+
+# Get a random integer between min and max (inclusive)
+func randi_range(min_value: int, max_value: int) -> int:
+		return _rng.randi_range(min_value, max_value)
+
+# Get a random float between 0.0 and 1.0
+func randf() -> float:
+		return _rng.randf()
+
+func randi() -> int:
+		return _rng.randi()
+
+# Get a random float between min and max
+func randf_range(min_value: float, max_value: float) -> float:
+		return _rng.randf_range(min_value, max_value)
+
+# Get a random normalized vector
+func random_unit_vector() -> Vector2:
+		return Vector2(randf_range(-1.0, 1.0), randf_range(-1.0, 1.0)).normalized()
+
+# Get a random point inside a circle with radius 1
+func random_point_in_circle() -> Vector2:
+		var r = sqrt(randf())
+		var theta = randf() * 2.0 * PI
+		return Vector2(r * cos(theta), r * sin(theta))
+
+# Get a random point inside a circle with specified radius
+func random_point_in_circle_with_radius(radius: float) -> Vector2:
+		return random_point_in_circle() * radius
+
+# Get a random boolean value with specified probability
+func random_bool(probability: float = 0.5) -> bool:
+		return randf() < probability