functionality

2020-03-19 02:04:22 -07:00
parent 2c39b14f5c
commit f419653c28
11 changed files with 168 additions and 0 deletions
@@ -0,0 +1,44 @@
+/**
+  * Internal atom that copies an appearance on to the blocker plane
+  *
+  * Copies an appearance vis render_target and render_source on to the emissive blocking plane.
+  * This means that the atom in question will block any emissive sprites.
+  * This should only be used internally. If you are directly creating more of these, you're
+  * almost guaranteed to be doing something wrong.
+  */
+/atom/movable/emissive_blocker
+	name = ""
+	plane = EMISSIVE_BLOCKER_PLANE
+	layer = EMISSIVE_BLOCKER_LAYER
+	mouse_opacity = MOUSE_OPACITY_TRANSPARENT
+	//Why?
+	//render_targets copy the transform of the target as well, but vis_contents also applies the transform
+	//to what's in it. Applying RESET_TRANSFORM here makes vis_contents not apply the transform.
+	//Since only render_target handles transform we don't get any applied transform "stacking"
+	appearance_flags = RESET_TRANSFORM
+
+/atom/movable/emissive_blocker/Initialize(mapload, source)
+	. = ..()
+	verbs.Cut() //Cargo culting from lighting object, this maybe affects memory usage?
+
+	render_source = source
+
+/atom/movable/emissive_blocker/ex_act(severity)
+	return FALSE
+
+/atom/movable/emissive_blocker/singularity_act()
+	return
+
+/atom/movable/emissive_blocker/singularity_pull()
+	return
+
+/atom/movable/emissive_blocker/blob_act()
+	return
+
+/atom/movable/emissive_blocker/onTransitZ()
+	return
+
+//Prevents people from moving these after creation, because they shouldn't be.
+/atom/movable/emissive_blocker/forceMove(atom/destination, no_tp=FALSE, harderforce = FALSE)
+	if(harderforce)
+		return ..()