adds instant explosions effects for buildmode (#9674)

modular_chomp/code/game/objects/effects/explosion.dm

@@ -0,0 +1,68 @@
+//These are intended to be placed via buildmode for rapid deployment of explosions.
+
+/obj/effect/instantboom //Parent is more like a welder bomb
+	var/devastation = 0
+	var/heavyboom = 1
+	var/lightboom = 2
+	var/flash = 3
+	icon = null
+
+/obj/effect/instantboom/small //Small and will somewhat harm people without causing severe hull damage.
+	devastation = 0
+	heavyboom = 0
+	lightboom = 3
+	flash = 0
+
+/obj/effect/instantboom/small/wide
+	lightboom = 5
+
+/obj/effect/instantboom/medium //Will cause hull damage and severely harm people at the epicenter. No gib
+	devastation = 0
+	heavyboom = 3
+	lightboom = 5
+	flash = 6
+
+/obj/effect/instantboom/large //Like getting hit directly with artillery
+	devastation = 2
+	heavyboom = 4
+	lightboom = 6
+	flash = 8
+
+/obj/effect/instantboom/large/concentrated //heavyboom damage in smaller area, perfect 5x5 size
+	devastation = 1
+	heavyboom = 3
+	lightboom = 3
+	flash = 3
+
+/obj/effect/instantboom/large/wide //Same as large but more collateral
+	lightboom = 9
+	flash = 10
+
+/obj/effect/instantboom/maxcap //Will delete departments, spam at your own risk
+	devastation = 4
+	heavyboom = 7
+	lightboom = 14
+	flash = 14
+
+/obj/effect/instantboom/mininuke //lol
+	devastation = 5
+	heavyboom = 10
+	lightboom = 20
+	flash = 25
+
+/obj/effect/instantboom/harmless //Just the noise
+	devastation = 0
+	heavyboom = 0
+	lightboom = 0
+	flash = 0
+
+/obj/effect/instantboom/bluespace_atrillery //Fuck that one person in paticular
+	devastation = 1
+	heavyboom = 0
+	lightboom = 0
+	flash = 0
+
+/obj/effect/instantboom/Initialize()
+	var/turf/T = get_turf(src)
+	explosion(T,devastation,heavyboom,lightboom,flash)
+	qdel(src)