From 00d6c715e8d71056274e22b3a7eae2e55d3840c1 Mon Sep 17 00:00:00 2001
From: ubq323 <ubq323@ubq323.website>
Date: Sun, 27 Aug 2023 00:03:21 +0100
Subject: reëngineer inventories a bit
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---
 client/game.lua   | 12 ++++++++----
 client/util.lua   |  2 ++
 net.txt           |  4 ++--
 server/server.lua | 29 ++++++++++++++++++++++-------
 4 files changed, 34 insertions(+), 13 deletions(-)

diff --git a/client/game.lua b/client/game.lua
index 43e2352..ede8d98 100644
--- a/client/game.lua
+++ b/client/game.lua
@@ -214,11 +214,12 @@ local function handle_net()
 					username=pl.username,
 					inv = {},
 				}
-			elseif op == "inv" then
-				local_player.inv = j.inv
 			elseif op == "chunk" then
 				local ch = ChunkC:from_packet_data(j)
 				map:add_chunk(ch)
+			elseif op == "give" then
+				local old_count = local_player.inv[j.tile] or 0
+				local_player.inv[j.tile] = old_count + 1
 			elseif op == "settile" then
 				local h = coords.Hex:make(j.q,j.r)
 				map:set_at(h,j.tile)
@@ -241,10 +242,13 @@ local function update(dt)
 		local msx,msy = love.mouse.getPosition()
 		local mh =
 			camera:screen_to_world(Pos:make(msx,msy)):to_hex():round()
+		local inv = local_player.inv
 		if map:at(mh) == 0 and love.mouse.isDown(1) then
-			if (local_player.inv[selected_tile] or 0) > 0 then
+			local old_count = inv[selected_tile] or 0
+			if old_count > 0 then
 				map:set_at(mh,selected_tile)
 				send_settile(mh,selected_tile)
+				inv[selected_tile] = old_count - 1
 			end
 		elseif map:at(mh) ~= 0 and love.mouse.isDown(2) then
 			map:set_at(mh,0)
@@ -350,7 +354,7 @@ local function draw()
 		end
 		table.insert(inv_rows, s)
 	end
-	util.print_good(table.concat(inv_rows,'\n'),0,0)
+	util.print_good(table.concat(inv_rows,'\n'),"end",0)
 
 
 	if show_controls then
diff --git a/client/util.lua b/client/util.lua
index a1c4b35..ebfad6c 100644
--- a/client/util.lua
+++ b/client/util.lua
@@ -7,6 +7,8 @@ local function print_good(str,x,y)
 	local W,H = love.graphics.getDimensions()
 	if x == "center" then x = (W/2)-(w/2) end
 	if y == "center" then y = (H/2)-(h/2) end
+	if x == "end" then  x = W-w end
+	if y == "end" then  y = H-h end
 	love.graphics.setColor(0,0,0,0.8)
 	love.graphics.rectangle("fill",x,y,w,h)
 	love.graphics.setColor(1,1,1)
diff --git a/net.txt b/net.txt
index 21e46d0..bec4003 100644
--- a/net.txt
+++ b/net.txt
@@ -38,5 +38,5 @@ settile {q,r,tile}
 chat {msg,from}
 	recieve chat message msg from player with name from.
 
-inv {inv={tile:count}}
-	tell client about inventory of its player
+give {tile}
+	gain 1x tile in your inventory
diff --git a/server/server.lua b/server/server.lua
index 3ec467c..a3c8f60 100644
--- a/server/server.lua
+++ b/server/server.lua
@@ -48,8 +48,11 @@ end
 local function chat_packet(fromplayer,msg)
 	return json.encode{t="chat",from=fromplayer.id,msg=msg}
 end
-local function inv_packet(inv)
-	return json.encode{t='inv',inv=inv}
+local function settile_packet(h,tile)
+	return json.encode{t='settile',q=h.q,r=h.r,tile=tile}
+end
+local function give_packet(tile)
+	return json.encode{t='give',tile=tile}
 end
 
 local map = MapS:make()
@@ -116,7 +119,6 @@ local function on_peer_disconnect(peer)
 end
 
 local function handle_player_packet(player,ev)
-	print('player packet ',player,ev.data)
 	local j = json.decode(ev.data)
 	-- print(ev.channel,ev.data)
 	local op = j.t
@@ -136,11 +138,24 @@ local function handle_player_packet(player,ev)
 		local inv = player.inv
 
 		if old_tile == 0 then
-			inv[new_tile] = (inv[new_tile] or 0) - 1
+			local nc = inv[new_tile] or 0
+			if nc <= 0 then
+				print("nooo")
+				player.peer:send(settile_packet(h,old_tile))
+				return
+			end
+			inv[new_tile] = nc - 1
 		elseif new_tile == 0 then
 			inv[old_tile] = (inv[old_tile] or 0) + 1
+			player.peer:send(give_packet(old_tile))
+		else
+			-- can't replace one tile with another
+			print("nooooo")
+			player.peer:send(settile_packet(h,old_tile))
+			return
 		end
-		player.peer:send(inv_packet(inv))
+
+		print('settile', player.username, inv[old_tile], inv[new_tile])
 
 		map:set_at(h, new_tile)
 		
@@ -172,7 +187,7 @@ local function handle_ev(ev)
 	elseif ev.type == 'disconnect' then
 		on_peer_disconnect(ev.peer)
 	elseif ev.type == 'receive' then
-		print("recv:",ev.peer,ev.data)
+		-- print("recv:",ev.peer,ev.data)
 		if connecting_peers[ev.peer] then
 			local co = connecting_peers[ev.peer]
 			print("\t-> hshake",co,coroutine.status(co))
@@ -185,7 +200,7 @@ local function handle_ev(ev)
 		else
 			local player = player_by_peer(ev.peer)
 			if not player then error("packet from unknown peer ",ev.peer) end
-			print("\t-> player",player)
+			-- print("\t-> player",player)
 			handle_player_packet(player, ev)
 		end
 	end
-- 
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