Lua Vector Library in base

* math.round function

mods/base/script/main.lua

@@ -2,5 +2,8 @@
 -- Register base models
 runfile(_PATH .. "models/_index")
 
+runfile(_PATH .. "math")
+runfile(_PATH .. "vector")
+
 -- Signal completion
 print("Base definitions loaded.")

mods/base/script/math.lua

@@ -0,0 +1,8 @@
+-- Zepha Math Library Extension
+-- Version 1.0
+
+-- math.round
+-- Add proper rounding functionality to the math library
+math.round = function(x)
+    return math.floor(x + 0.5)
+end

mods/base/script/vector.lua

@@ -0,0 +1,59 @@
+-- Zepha Vector Library
+-- Version 1.0
+
+_G["vector"] = {}
+
+-- vector.new
+-- Constructor function for creating vectors from a table or 2-4 values.
+-- Table constructor works with 1-4 values
+vector.new = function(x, y, z)
+    if x == nil then return {x = 0, y = 0, z = 0}
+    elseif type(x) ~= "number" and type(x) ~= "table" then return nil
+    elseif type(x) == "table" then return {x = x[1], y = x[2], z = x[3]}
+    elseif y == nil then return {x = x, y = x, z = x} end
+    return {x = x, y = y, z = z}
+end
+-- vector.new shorthand
+_G["v"] = vector.new
+
+-- vector.add
+-- Add two vectors
+vector.add = function(v1, v2)
+    if type(v1) ~= "table" or type(v2) ~= "table" then return nil end
+    return {x = (v1.x or 0) + (v2.x or 0), y = (v1.y or 0) + (v2.y or 0), z = (v1.z or 0) + (v2.z or 0)}
+end
+
+-- vector.negative
+-- Flips a vector's content's signs
+vector.negative = function(v)
+    if type(v) ~= "table" then return nil end
+    return {x = -(v.x or nil), y = -(v.y or nil), z = -(v.z or nil)}
+end
+
+-- vector.subtract
+-- Subtract v2 from v1
+vector.negative = function(v1, v2)
+    if type(v1) ~= "table" or type(v2) ~= "table" then return nil end
+    return vector.add(v1, vector.negative(v2))
+end
+
+-- vector.round
+-- Round each vector value to the nearest integer
+vector.round = function(v)
+    if type(v) ~= "table" then return nil end
+    return {x = math.round(v.x), y = math.round(v.y), z = math.round(v.z)}
+end
+
+-- vector.floor
+-- Floor each vector value to the lowest integer
+vector.floor = function(v)
+    if type(v) ~= "table" then return nil end
+    return {x = math.floor(v.x), y = math.floor(v.y), z = math.floor(v.z)}
+end
+
+-- vector.ceil
+-- Ceil each vector value to the highest integer
+vector.floor = function(v)
+    if type(v) ~= "table" then return nil end
+    return {x = math.ceil(v.x), y = math.ceil(v.y), z = math.ceil(v.z)}
+end

mods/default/script/main.lua

@@ -3,21 +3,6 @@ print("Hello from default")
 runfile(_PATH .. "blocks/_index")
 runfile(_PATH .. "entity/_index")
 
-vector = {}
-
-vector.new = function(x, y, z)
-    if y == nil then return {x = x[1], y = x[2], z = x[3]} end
-    return {x = x, y = y, z = z}
-end
-
-v = vector.new
-
-local table = v{1, 2, 3}
-table2 = v(4, 5, 6)
-
-print(dump(table))
-print(dump(table2))
-
 local blockTypes = {
     "zeus:default:stone",
     "zeus:default:wood",
@@ -30,6 +15,7 @@ local blockTypes = {
     "zeus:default:tallgrass_5"
 }
 
+
 for i, v in ipairs(blockTypes) do
     zepha.register_keybind("block_" .. i, {
         description = "Select Block " .. i,

src/game/scene/world/InventoryList.cpp

@@ -7,10 +7,7 @@
 
 InventoryList::InventoryList(unsigned short size, unsigned short width) :
     itemstacks(size),
-    width(width) {
-
-    std::cout << itemstacks.size() << std::endl;
-}
+    width(width) {}
 
 
 void InventoryList::setUpdatedCallback(std::function<void()> cb) {