Fixed Emitters emit creeper. Their defining feature is that they are not affected by physics, allowed to seemingly hover in mid-air. Fixed Emitters can be destroyed with a Nullifier.
Unit JSON
{ "type": "unit", "enemy": true, "displayname":"Fixed Emitter", "image": "body.png", "sortingorder": 2, "position": [0, 0], "pivot": [0.5, 0.5], "isbuilt": true, "hasphysics": false, "parts": [], "scripts": [], "creeperdamages": false, "digitalissource": false, "nullifiable": true, "playercandestroy": false, "playercontrolbuildsupply": false, "playercontrolammosupply": false, "objectivetype": 4, "damageheal": 50, "controllers": [ { "name": "cemitter", "productionInterval": 5, "productionAmt":1000.0, }, { "name": "ondestroy_sandexplosion", "amt": 500, "minvelocity": 1.5, "maxvelocity": 3, "color0":[0.2, 0.4, 2], "color1":[0.2, 0.6, 2], "sandtype": 98, } ] }