Add unfinished API and two grenades

grenades.lua

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+local settings = minetest.settings
+
+if settings:get_bool("enable_regular_grenade") then
+    grenades.register_grenade("regular", {
+        description = "A regular grenade (Kills anyone near where it explodes)",
+        image = "grenades_regular.png",
+        on_explode = function(pos, player, self)
+            minetest.add_particlespawner({
+                amount = 20,
+                time = 0.5,
+                minpos = vector.subtract(pos, 2.3),
+                maxpos = vector.add(pos, 2.3),
+                minvel = {x=0, y=5, z=0},
+                maxvel = {x=0, y=7, z=0},
+                minacc = {x=0, y=1, z=0},
+                maxacc = {x=0, y=1, z=0},
+                minexptime = 0.3,
+                maxexptime = 0.6,
+                minsize = 5,
+                maxsize = 7,
+                collisiondetection = false,
+                collision_removal = false,
+                vertical = false,
+                texture = "grenades_smoke.png",
+            })
+
+            for k, v in ipairs(minetest.get_objects_inside_radius(pos, 2.3)) do
+                if v:is_player() and v:get_hp() > 0 then
+                    v:punch(player, 2, {damage_groups = {fleshy = 20}}, nil)
+                end
+            end
+        end,
+        timeout = 3
+    })
+end
+
+if settings:get_bool("enable_flashbang_grenade") then
+    grenades.register_grenade("flashbang", {
+        description = "A flashbang grenade (Blinds all who look at the explosion)",
+        image = "grenades_flashbang.png",
+        on_explode = function(pos, player, self)
+            for k, v in ipairs(minetest.get_objects_inside_radius(pos, 6)) do
+                if v:is_player() and v:get_hp() > 0 then
+                    for i = 1, 3, 1 do
+                        local key = v:hud_add({
+                            hud_elem_type = "image",
+                            position = {x=0, 0},
+                            name = "death_list_hud",
+                            scale = {x=1000, y=1000},
+                            text = "grenades_white_"..tostring(i)..".png",
+                            alignment = {x=0, y=0},
+                            offset = {x=0, y=0}
+                        })
+
+                        minetest.after(4*i, function() v:hud_remove(key) end)
+                    end
+                end
+            end
+        end,
+        timeout = 3
+    })
+end

init.lua

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+grenades = {}
+
+local function throw_grenade(name, player)
+    local dir = player:get_look_dir()
+    local pos = player:get_pos()
+    local obj = minetest.add_entity({x=pos.x+dir.x, y=pos.y+1.3, z=pos.z+dir.z}, name)
+    local yaw = player:get_look_yaw()
+
+    obj:setvelocity({x=dir.x * 16, y=dir.y * 16, z=dir.z * 16})
+    obj:setacceleration({x=dir.x * -3, y=-17, z=dir.z * -3})
+    obj:setyaw(yaw + math.pi)
+
+    return(obj:get_luaentity())
+end
+
+function grenades.register_grenade(name, def)
+    minetest.log("\n\n\nREGISTERING "..name.."\n\n\n\n")
+    local grenade_entity = {
+        physical = true,
+        timer = 0,
+        visual = "sprite",
+        visual_size = {x=1, y=1, z=1},
+        textures = {def.image},
+        collisionbox = {1, 1, 1, 1, 1, 1},
+        on_step = function(self, dtime)
+            local pos = self.object:getpos()
+            local node = minetest.get_node(pos)
+            local player
+
+            if self.timer then
+                self.timer = self.timer + dtime
+            else
+                self.timer = dtime
+            end
+
+            if self.thrower_name then
+                player = minetest.get_player_by_name(self.thrower_name)
+            end
+    
+            if player and (self.timer > def.timeout or node.name ~= "air") then
+                def.on_explode(pos, player, self)
+
+                self.object:remove()
+            elseif self.timer > def.timeout or node.name ~= "air" then
+                self.object:remove()
+            end
+        end
+    }
+    
+    minetest.register_entity("grenades:grenade_"..name, grenade_entity)
+
+    minetest.register_node("grenades:grenade_"..name, {
+        description = def.description,
+        stack_max = 1,
+        range = 4,
+        paramtype = "light",
+        sunlight_propagates = true,
+        drawtype = "plantlike",
+        selection_box = {
+            type = "fixed",
+            fixed = {-0.3, -0.5, -0.3, 0.3, 0.4, 0.3},
+        },
+        tiles = {def.image},
+        inventory_image = def.image,
+        groups = {oddly_breakable_by_hand = 1},
+        on_use = function(itemstack, user, pointed_thing)
+            local player_name = user:get_player_name()
+            local inv = user:get_inventory()
+
+            grenade = throw_grenade("grenades:grenade_"..name, user)
+            grenade.timer = 0
+            grenade.thrower_name = player_name
+
+            inv:remove_item("main", "grenades:grenade_"..name)
+        end
+    })
+end
+
+dofile(minetest.get_modpath("grenades").."/grenades.lua")

mod.conf

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+name = grenades

models/grenade_regular.mtl

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+# Blender MTL File: 'None'
+# Material Count: 1
+
+newmtl None
+Ns 0
+Ka 0.000000 0.000000 0.000000
+Kd 0.8 0.8 0.8
+Ks 0.8 0.8 0.8
+d 1
+illum 2

models/grenade_regular.obj

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+# Blender v2.79 (sub 0) OBJ File: ''
+# www.blender.org
+mtllib grenade_regular.mtl
+o Cube_Cube.001
+v -0.202887 -0.445911 -0.202887
+v -0.202887 0.179806 -0.202887
+v 0.202887 -0.445911 -0.202887
+v 0.202887 0.179806 -0.202887
+v -0.202887 -0.445911 0.202887
+v -0.202887 0.179806 0.202887
+v 0.202887 -0.445911 0.202887
+v 0.202887 0.179806 0.202887
+v -0.033569 0.125949 -0.310149
+v -0.033569 0.314819 -0.310149
+v 0.053858 0.125949 -0.310149
+v 0.053858 0.314819 -0.310149
+v -0.033569 0.125949 -0.121278
+v -0.033569 0.314819 -0.121278
+v 0.053858 0.125949 -0.121278
+v 0.053858 0.314819 -0.121278
+vn 0.0000 0.0000 -1.0000
+vn 1.0000 0.0000 0.0000
+vn 0.0000 0.0000 1.0000
+vn -1.0000 0.0000 0.0000
+vn 0.0000 -1.0000 0.0000
+vn 0.0000 1.0000 0.0000
+usemtl None
+s off
+f 1//1 2//1 4//1 3//1
+f 3//2 4//2 8//2 7//2
+f 7//3 8//3 6//3 5//3
+f 5//4 6//4 2//4 1//4
+f 3//5 7//5 5//5 1//5
+f 8//6 4//6 2//6 6//6
+f 9//1 10//1 12//1 11//1
+f 11//2 12//2 16//2 15//2
+f 15//3 16//3 14//3 13//3
+f 13//4 14//4 10//4 9//4
+f 11//5 15//5 13//5 9//5
+f 16//6 12//6 10//6 14//6

settingtypes.txt

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+#Add a regular grenade to the world
+enable_regular_grenade (Add a regular grenade to the world) bool false
+
+#Add a flashbang grenade to the world
+enable_flashbang_grenade (Add a flashbang grenade to the world) bool false