wasplib: add some placement helpers

builtin/client/wasplib.lua

@@ -588,6 +588,43 @@ function ws.gaim(tpos,v,g)
     minetest.localplayer:set_pitch(math.deg(pitch))
 end
 
+function ws.buildable_to(pos)
+    local node=minetest.get_node_or_nil(pos)
+    if node then
+        return minetest.get_node_def(node.name).buildable_to
+    end
+end
+
+function ws.tplace(p,n,stay)
+    if not p then return end
+    if n then ws.switch_to_item(n) end
+    local opos=ws.dircoord(0,0,0)
+    local tpos=vector.add(p,vector.new(0,1,0))
+    minetest.localplayer:set_pos(tpos)
+    ws.place(p,{n})
+    if not stay then
+        minetest.after(0.1,function() 
+            minetest.localplayer:set_pos(opos)
+        end)
+    end
+end
+
+minetest.register_chatcommand("tplace", {
+    description = "tp-place",
+    param = "Y",
+    func = function(param)
+		return ws.tplace(minetest.string_to_pos(param))
+    end
+})
+
+function ws.ytp(param)
+    local y=tonumber(param)
+    local lp=ws.dircoord(0,0,0)
+    if lp.y < y + 50 then return false,"Can't TP up." end
+    if y < -30912 then return false,"Don't TP into the void lol." end
+    minetest.localplayer:set_pos(vector.new(lp.x,y,lp.z))
+end
+
 local function tablearg(arg)
     local tb={}
     if type(arg) == 'string' then