Adds book burning (#74873)

## About The Pull Request

For some reason, unlike other paper items, you couldn't ignite books
with a lighter or other hot item.
Now, you can!

(Also made it so the odd obscure mechanic of cutting pages out of books
can be done by any sharp item, not just wirecutters or knives)

## Why It's Good For The Game

Consistency. 
~~Burning copies of WGW.~~

## Changelog

🆑
add: Books can now be burned just like any other paper item.
add: You can cut pages out of books with any sharp item, not just knives
or wirecutters.
/🆑

---------

Co-authored-by: san7890 <the@san7890.com>

code/modules/library/book.dm

@@ -139,9 +139,12 @@
 	user.visible_message(span_notice("[user] opens a book titled \"[book_data.title]\" and begins reading intently."))
 	on_read(user)
 
-/obj/item/book/attackby(obj/item/I, mob/user, params)
-	if(istype(I, /obj/item/pen))
-		if(!user.can_perform_action(src) || !user.can_write(I))
+/obj/item/book/attackby(obj/item/attacking_item, mob/user, params)
+	if(burn_paper_product_attackby_check(attacking_item, user))
+		return
+
+	if(istype(attacking_item, /obj/item/pen))
+		if(!user.can_perform_action(src) || !user.can_write(attacking_item))
 			return
 		if(user.is_blind())
 			to_chat(user, span_warning("As you are trying to write on the book, you suddenly feel very stupid!"))
@@ -153,12 +156,12 @@
 		var/choice = tgui_input_list(usr, "What would you like to change?", "Book Alteration", list("Title", "Contents", "Author", "Cancel"))
 		if(isnull(choice))
 			return
-		if(!user.can_perform_action(src) || !user.can_write(I))
+		if(!user.can_perform_action(src) || !user.can_write(attacking_item))
 			return
 		switch(choice)
 			if("Title")
 				var/newtitle = reject_bad_text(tgui_input_text(user, "Write a new title", "Book Title", max_length = 30))
-				if(!user.can_perform_action(src) || !user.can_write(I))
+				if(!user.can_perform_action(src) || !user.can_write(attacking_item))
 					return
 				if (length_char(newtitle) > 30)
 					to_chat(user, span_warning("That title won't fit on the cover!"))
@@ -170,7 +173,7 @@
 				book_data.set_title(html_decode(newtitle)) //Don't want to double encode here
 			if("Contents")
 				var/content = tgui_input_text(user, "Write your book's contents (HTML NOT allowed)", "Book Contents", multiline = TRUE)
-				if(!user.can_perform_action(src) || !user.can_write(I))
+				if(!user.can_perform_action(src) || !user.can_write(attacking_item))
 					return
 				if(!content)
 					to_chat(user, span_warning("The content is invalid."))
@@ -178,7 +181,7 @@
 				book_data.set_content(html_decode(content))
 			if("Author")
 				var/author = tgui_input_text(user, "Write the author's name", "Author Name")
-				if(!user.can_perform_action(src) || !user.can_write(I))
+				if(!user.can_perform_action(src) || !user.can_write(attacking_item))
 					return
 				if(!author)
 					to_chat(user, span_warning("The name is invalid."))
@@ -187,8 +190,8 @@
 			else
 				return
 
-	else if(istype(I, /obj/item/barcodescanner))
-		var/obj/item/barcodescanner/scanner = I
+	else if(istype(attacking_item, /obj/item/barcodescanner))
+		var/obj/item/barcodescanner/scanner = attacking_item
 		var/obj/machinery/computer/libraryconsole/bookmanagement/computer = scanner.computer_ref?.resolve()
 		if(!computer)
 			to_chat(user, span_alert("[scanner]'s screen flashes: 'No associated computer found!'"))
@@ -219,7 +222,7 @@
 				computer.inventory_update()
 				to_chat(user, span_notice("[scanner]'s screen flashes: 'Book stored in buffer. Title added to general inventory.'"))
 
-	else if((istype(I, /obj/item/knife) || I.tool_behaviour == TOOL_WIRECUTTER) && !(flags_1 & HOLOGRAM_1))
+	else if(((attacking_item.sharpness & SHARP_EDGED) || (attacking_item.tool_behaviour == TOOL_KNIFE) || (attacking_item.tool_behaviour == TOOL_WIRECUTTER)) && !(flags_1 & HOLOGRAM_1))
 		to_chat(user, span_notice("You begin to carve out [book_data.title]..."))
 		if(do_after(user, 30, target = src))
 			to_chat(user, span_notice("You carve out the pages from [book_data.title]! You didn't want to read it anyway."))
@@ -237,4 +240,4 @@
 				return
 		return
 	else
-		..()
+		return ..()

code/modules/paperwork/paper.dm

@@ -351,25 +351,28 @@
 		return TRUE
 	return ..()
 
-/obj/item/proc/burn_paper_product_attackby_check(obj/item/I, mob/living/user, bypass_clumsy)
-	var/ignition_message = I.ignition_effect(src, user)
+/obj/item/proc/burn_paper_product_attackby_check(obj/item/attacking_item, mob/living/user, bypass_clumsy = FALSE)
+	//can't be put on fire!
+	if((resistance_flags & FIRE_PROOF) || !(resistance_flags & FLAMMABLE))
+		return FALSE
+	var/ignition_message = attacking_item.ignition_effect(src, user)
 	if(!ignition_message)
-		return
-	. = TRUE
+		return FALSE
 	if(!bypass_clumsy && HAS_TRAIT(user, TRAIT_CLUMSY) && prob(10) && Adjacent(user))
 		user.visible_message(span_warning("[user] accidentally ignites [user.p_them()]self!"), \
 							span_userdanger("You miss [src] and accidentally light yourself on fire!"))
-		if(user.is_holding(I)) //checking if they're holding it in case TK is involved
-			user.dropItemToGround(I)
-		user.adjust_fire_stacks(1)
+		if(user.is_holding(attacking_item)) //checking if they're holding it in case TK is involved
+			user.dropItemToGround(attacking_item)
+		user.adjust_fire_stacks(attacking_item)
 		user.ignite_mob()
-		return
+		return TRUE
 
 	if(user.is_holding(src)) //no TK shit here.
 		user.dropItemToGround(src)
 	user.visible_message(ignition_message)
 	add_fingerprint(user)
-	fire_act(I.get_temperature())
+	fire_act(attacking_item.get_temperature())
+	return TRUE
 
 /obj/item/paper/attackby(obj/item/attacking_item, mob/living/user, params)
 	if(burn_paper_product_attackby_check(attacking_item, user))