item physics

mods/super_sam/itempickup.lua

@@ -12,6 +12,22 @@ minetest.register_entity(":super_sam:item", {
 		local data = minetest.deserialize(staticdata)
 		self.data = data
 		self.object:set_properties(data.properties)
+		if data.velocity then
+			self.object:set_velocity(data.velocity)
+		end
+		if data.acceleration then
+			self.object:set_acceleration(data.acceleration)
+		end
+	end,
+	on_step = function(self, _, moveresult)
+		if not self.data.enable_physics then
+			return
+		end
+
+		if moveresult.touching_ground and not moveresult.standing_on_object then
+			self.object:set_velocity({ x=0, y=0, z=0 })
+			self.data.enable_physics = false
+		end
 	end
 })
 

mods/super_sam_game_elements/box.lua

@@ -12,12 +12,12 @@ local function show_formspec(pos, playername)
 	local formspec = [[
 		size[8,7;]
 
-		field[0.2,0.5;2,1;maxvel;Max Speed;]] .. meta:get_string("maxvel") .. [[]
-		field[2.2,0.5;2,1;minvel;Min Speed;]] .. meta:get_string("minvel") .. [[]
+		field[0.2,0.5;2,1;maxvel;Max Velocity;]] .. meta:get_string("maxvel") .. [[]
+		field[2.2,0.5;2,1;minvel;Min Velocity;]] .. meta:get_string("minvel") .. [[]
 		field[4.2,0.5;2,1;regenerate;Regenerate;]] .. meta:get_string("regenerate") .. [[]
 		button_exit[6,0.2;2,1;save;Save]
 
-		list[context;main;0,1.2;8,1;]
+		list[nodemeta:]] .. pos.x .. "," .. pos.y .. "," .. pos.z .. [[;main;0,1.2;8,1;]
 
         list[current_player;main;0,2.5;8,4;]
 		listring[]
@@ -70,20 +70,59 @@ minetest.register_node(":super_sam:box", {
     on_rightclick = function(pos, _, player)
 		show_formspec(pos, player:get_player_name())
 	end,
-	on_timer = function(pos)
-		local meta = minetest.get_meta(pos)
-		local inv = meta:get_inventory()
-		local stack = inv:get_stack("main", 1)
-		local item_name = stack:get_name()
-
-		if not item_name or item_name == "" then
-			return
-		end
+    on_punch = function(pos)
+        local meta = minetest.get_meta(pos)
 
-		-- TODO
+        local max_vel = minetest.string_to_pos(meta:get_string("maxvel"))
+        local min_vel = minetest.string_to_pos(meta:get_string("minvel"))
 
-		local interval = tonumber(meta:get_string("regenerate")) or 5
+		local inv = meta:get_inventory()
+        for i=1,8 do
+            local stack = inv:get_stack("main", i)
+            local item_name = stack:get_name()
+
+            if item_name and item_name ~= "" then
+
+                local velocity = {
+                    x = (math.random() * (max_vel.x - min_vel.x)) + min_vel.x,
+                    y = (math.random() * (max_vel.y - min_vel.y)) + min_vel.y,
+                    z = (math.random() * (max_vel.z - min_vel.z)) + min_vel.z,
+                }
+
+                super_sam.add_item_entity(pos, {
+                    enable_physics = true,
+                    velocity = velocity,
+                    acceleration = { x=0, y=-10, z=0 },
+                    properties = {
+                        visual = "wielditem",
+                        wield_item = item_name,
+                        visual_size = { x=0.5, y=0.5 },
+                        automatic_rotate = 1,
+                        pointable = false,
+                        physical = true
+                    }
+                })
+            end
+        end
+
+        -- swap to hidden node and start regeneration timer
+        minetest.swap_node(pos, { name = "super_sam:box_hidden" })
+        local regenerate = tonumber(meta:get_string("regenerate")) or 5
 		local timer = minetest.get_node_timer(pos)
-		timer:start(interval)
-	end
+		timer:start(regenerate)
+    end
+})
+
+minetest.register_node(":super_sam:box_hidden", {
+	description = "Box (hidden)",
+	tiles = {},
+    drawtype = "airlike",
+	paramtype = "light",
+	sunlight_propagates = true,
+	pointable = false,
+	walkable = false,
+	diggable = false,
+    on_timer = function(pos)
+        minetest.swap_node(pos, { name = "super_sam:box" })
+    end
 })