Lots of stuff I forgot to commit because Holidays

- D&D dice engine (see README)
- Markdown support
- Phantom camera

scripts/Dicebag.gd

@@ -0,0 +1,63 @@
+extends Node
+
+var rng = RandomNumberGenerator.new()
+
+var bags = {}
+var tables = {}
+
+#Flip a coin: 50% chance of returning true or false
+func flip_coin() -> bool:
+	return randf() > 0.5
+
+#D&D-style dice roll, for example 3d6+2. Returns resulting roll value.
+func roll_dice(num_dice = 1, num_sides = 6, modifier = 0) -> int:
+	var result = modifier
+
+	for i in range(0, num_dice):
+		result += rng.randi_range(1, num_sides)
+
+	return result
+
+#Roll one or more dice with advantage or disadvantage (if advantage is not true rolls are disadvantaged). Returns the highest (advantage) or lowest (disadvantage) value of all rolls.
+#This script was broken in godot 3.5.1. I simplified it and rewrote it from the ground up. - Cablefish
+func roll_special_dice(num_sides:int = 6, advantage:bool = true, num_dice:int = 2) -> int:
+	var max_or_min_roll = 1
+	var roll
+
+	if advantage:
+		for i in range (0, num_dice):
+			roll = roll_dice(1, num_sides)
+			if(roll > max_or_min_roll):
+				max_or_min_roll = roll
+	else:
+		max_or_min_roll = num_sides
+		for i in range (0, num_dice):
+			roll = roll_dice(1, num_sides)
+			if roll < max_or_min_roll:
+				max_or_min_roll = roll
+				
+	return max_or_min_roll
+
+# Pick a random place in a user defined table. I.e. a loot table.
+# Parameter weighted_loot_table is an array in the format [[weight1, value1], [weight2, value2] ...].
+# The function adds the weights and returns a random value based on the weighted probabilities.
+
+func roll_table(weighted_loot_table):
+	var total_weight = 0
+	var acc_weight = 0
+
+	# count up the total weight
+	for item in weighted_loot_table:
+		total_weight += item[0]
+	
+	#get random number within the total weight
+	var random_num = randf() * total_weight
+	
+	#find corrosponding die side and return its value.
+	for item in weighted_loot_table:
+		if random_num <= item[0] + acc_weight:
+			return item[1]
+		else:
+			acc_weight += item[0]
+
+	return weighted_loot_table[-1][1]