Add loot to Roguelike Dungeons (put this file in <config>/roguelike_dungeons/settings).

loot_specialcrops.json

{
    "name": "loot_specialcrops",
    "criteria": {},
    "loot_rules": [
        {
            "type": "SUPPLIES",
            "loot": [
                {"data": {"name": "ashenwheat:ashseeds", "min": 1, "max": 3}, "weight": 1},
                {"data": {"name": "ashenwheat:ossidseeds", "min": 1, "max": 3}, "weight": 1},
                {"data": {"name": "ashenwheat:thunderseeds", "min": 1, "max": 3}, "weight": 1}
            ],
            "each": false,
            "level": 1,
            "quantity": 1
        },
        {
            "type": "SUPPLIES",
            "loot": [
                {"data": {"name": "endercrop:ender_seeds", "min": 1, "max": 3}, "weight": 1},
                {"data": {"name": "ashenwheat:scintillaseeds", "min": 1, "max": 1}, "weight": 1},
                {"data": {"name": "ashenwheat:ashseeds", "min": 1, "max": 3}, "weight": 3},
                {"data": {"name": "ashenwheat:ossidseeds", "min": 1, "max": 3}, "weight": 3},
                {"data": {"name": "ashenwheat:thunderseeds", "min": 1, "max": 3}, "weight": 3}
            ],
            "each": false,
            "level": 1,
            "quantity": 2
        },
        {
            "type": "SUPPLIES",
            "loot": [
                {"data": {"name": "endercrop:ender_seeds", "min": 1, "max": 3}, "weight": 2},
                {"data": {"name": "ashenwheat:scintillaseeds", "min": 1, "max": 1}, "weight": 2},
                {"data": {"name": "ashenwheat:ashseeds", "min": 1, "max": 3}, "weight": 2},
                {"data": {"name": "ashenwheat:ossidseeds", "min": 1, "max": 3}, "weight": 2},
                {"data": {"name": "ashenwheat:thunderseeds", "min": 1, "max": 3}, "weight": 2}
            ],
            "each": false,
            "level": 2,
            "quantity": 2
        },
        {
            "type": "SUPPLIES",
            "loot": [
                {"data": {"name": "endercrop:ender_seeds", "min": 1, "max": 3}, "weight": 3},
                {"data": {"name": "ashenwheat:scintillaseeds", "min": 1, "max": 3}, "weight": 3},
                {"data": {"name": "ashenwheat:ashseeds", "min": 1, "max": 3}, "weight": 1},
                {"data": {"name": "ashenwheat:ossidseeds", "min": 1, "max": 3}, "weight": 1},
                {"data": {"name": "ashenwheat:thunderseeds", "min": 1, "max": 3}, "weight": 1}
            ],
            "each": false,
            "level": 3,
            "quantity": 2
        },
        {
            "type": "SUPPLIES",
            "loot": [
                {"data": {"name": "endercrop:ender_seeds", "min": 1, "max": 3}, "weight": 5},
                {"data": {"name": "ashenwheat:scintillaseeds", "min": 1, "max": 3}, "weight": 5}
            ],
            "each": false,
            "level": 4,
            "quantity": 3
        },
        {
            "type": "ORE",
            "comment": "Level 4 will usually contain an obsidian room with 4 treasure chests (types WEAPONS, ARMOUR or ORE). Give this a high chance of containing something good.",
            "loot": [
                {"data": {"name": "endercrop:ender_seeds", "min": 1, "max": 3}, "weight": 5},
                {"data": {"name": "ashenwheat:scintillaseeds", "min": 1, "max": 3}, "weight": 5}
            ],
            "each": false,
            "level": 4,
            "quantity": 2
        }
    ]
}