-- Added blender-rendered overlay for struts using the actual model.
-- Reduced airbreak penalty severity
-- gave glider limited durability.
+-- Improved gravity adjustment function.
+-- Changed airbreaking process
+-- Removed airbreak penalty, as any 'advantage' seems minimal after new adjustments
+-- Removed airbreak until minetest devs are smart enough to implement better serverside players.
+-- Simplified liquid check.
+
+-- Modifications by gpcf
+-- 2018-12-09
+-- get shot down while flying over protected areas marked as no-fly-zones (flak, from German Flugabwehrkanone)
+-- set these areas with the /area_flak command
+
+-- Modifications by SpaghettiToastBook
+-- 2018-12-29
+-- Physics overrides use player_monoids mod if available
+
local HUD_Overlay = true --show glider struts as overlay on HUD
local debug = false --show debug info in top-center of hud
+local moveModelUp = false
+if tonumber(string.sub(minetest.get_version().string, 1, 1)) and tonumber(string.sub(minetest.get_version().string, 1, 1)) > 4 then
+ moveModelUp = true
+end
hangglider = {} --Make this global, so other mods can tell if hangglider exists.
hangglider.use = {}
if HUD_Overlay then
hangglider.id = {} -- hud id for displaying overlay with struts
end
if debug then hangglider.debug = {} end -- hud id for debug data
-hangglider.airbreak = {} -- true if falling fast when equip
-
-minetest.register_entity("hangglider:airstopper", { --A one-instant entity that catches the player and slows them down.
- hp_max = 3,
+--hangglider.airbreak = {} -- true if falling fast when equip
+--[[
+minetest.register_entity("hangglider:airstopper", { --A one-instant entity that catches the player and stops them.
is_visible = false,
+ physical = false,
immortal = true,
attach = nil,
on_step = function(self, _)
- if self.object:get_hp() ~= 1 then
- self.object:set_hp(self.object:get_hp() - 1)
- else
- if self.attach then
- self.attach:set_detach()
+ local canExist = false
+ if self.attach then
+ local player = self.attach
+ if player:is_player() then
+ local pname = player:get_player_name()
+ canExist = true
+ if player:get_player_velocity().y < 0.5 and player:get_player_velocity().y > -0.5 then
+ --Let go when the player actually stops, as that's the whole point.
+ if hangglider.use[pname] then
+ if moveModelUp then
+ minetest.add_entity(player:get_pos(), "hangglider:glider"):set_attach(player, "", {x=0,y=10,z=0}, {x=0,y=0,z=0})
+ else
+ minetest.add_entity(player:get_pos(), "hangglider:glider"):set_attach(player, "", {x=0,y=0,z=0}, {x=0,y=0,z=0})
+ end
+ end
+ canExist = false
+ end
+ end
+ if not canExist then
+ player:set_detach()
end
+ end
+ if not canExist then
self.object:remove()
end
end
-})
+})]]
+
+if core.global_exists("areas") then
+ hangglider.flak = true
+ -- chat command definition essentially copied from areas mod.
+ minetest.register_chatcommand("area_flak",{
+ params = "<ID>",
+ description = "Toggle airspace restrictions for area <ID>",
+ func = function(name, param)
+ local id = tonumber(param)
+ if not id then
+ return false, "Invalid usage, see /help area_flak."
+ end
+
+ if not areas:isAreaOwner(id, name) then
+ return false, "Area "..id.." does not exist"
+ .." or is not owned by you."
+ end
+ local open = not areas.areas[id].flak
+ -- Save false as nil to avoid inflating the DB.
+ areas.areas[id].flak = open or nil
+ areas:save()
+ return true, ("Area's airspace %s."):format(open and "closed" or "opened")
+ end
+ })
+end
+
+if core.global_exists("minetestd") and minetestd.services.physicsctl.enabled then
+minetestd.physicsctl.register_physics_effect("hangglider",
+ function(player) -- check
+ return hangglider.use[player:get_player_name()]
+ end,
+ function(phys, player) -- blend
+ local vel_y = player:get_player_velocity().y
+ if debug then player:hud_change(hangglider.debug[pname].id, "text", vel_y..', '..player:get_physics_override().gravity..', '..tostring(hangglider.airbreak[pname])) end
+ phys.gravity = phys.gravity*((vel_y + 3)/20)
+ if vel_y < 0 and vel_y > -3 then
+ phys.speed = (math.abs(vel_y/2) + 0.75)
+ elseif vel_y <= -3 then --Cap our gliding movement speed.
+ phys.speed = 2.25
+ end
+ phys.jump = 0
+ end,
+ 7 -- effect order
+)
+end
+
+hangglider.can_fly = function (pname, pos)
+ -- Checks if the player will get shot down at the position
+ if wardzones then
+ local zone = wardzones.getZone(pos)
+ if zone then
+ return (minetest.check_player_privs(pname, {protection_bypass=true}) or wardzones.checkPlayerZoneAccess(pname, zone) or not zone["data"]["no_fly"])
+ end
+ end
+ if areas and minetest.is_protected(vector.round(pos), pname) then
+ if hangglider.flak then
+ for id, area in pairs(areas:getAreasAtPos(pos)) do
+ if area.flak then
+ return false
+ end
+ end
+ end
+ end
+ return true
+end
+
+hangglider.shot_sound = function (pos)
+ minetest.sound_play("hangglider_flak_shot", {
+ pos = pos,
+ max_hear_distance = 30,
+ gain = 10.0,
+ })
+end
+
+local function set_fast(name, value)
+ local privs = minetest.get_player_privs(name)
+ privs.fast = value
+ minetest.set_player_privs(name, privs)
+end
+
+local physics_attrs = {"jump", "speed", "gravity"}
+local function apply_physics_override(player, overrides)
+ if player_monoids then
+ for _, attr in pairs(physics_attrs) do
+ if overrides[attr] then
+ player_monoids[attr]:add_change(player, overrides[attr], "hangglider:glider")
+ end
+ end
+ else
+ player:set_physics_override(overrides)
+ end
+ if minetest.settings:get_bool("hangglider_no_fast") then
+ set_fast(player:get_player_name(), nil)
+ end
+end
+local function remove_physics_override(player, overrides)
+ for _, attr in pairs(physics_attrs) do
+ if overrides[attr] then
+ if core.global_exists("player_monoids") then
+ player_monoids[attr]:del_change(player, "hangglider:glider")
+ else
+ player:set_physics_override({[attr] = 1})
+ end
+ end
+ end
+ set_fast(player:get_player_name(), true)
+end
+
+local step_v
minetest.register_entity("hangglider:glider", {
visual = "mesh",
visual_size = {x = 12, y = 12},
+ collisionbox = {0,0,0,0,0,0},
mesh = "glider.obj",
immortal = true,
static_save = false,
textures = {"wool_white.png","default_wood.png"},
- on_step = function(self, _)
+ on_step = function(self, dtime)
local canExist = false
if self.object:get_attach() then
local player = self.object:get_attach("parent")
if hangglider.use[pname] then
local mrn_name = minetest.registered_nodes[minetest.get_node(vector.new(pos.x, pos.y-0.5, pos.z)).name]
if mrn_name then
- if not (mrn_name.walkable or (mrn_name.drowning and mrn_name.drowning == 1)) then
+ if not (mrn_name.walkable or mrn_name.liquidtype ~= "none") then
canExist = true
- local vel = player:get_player_velocity()
- local grav = player:get_physics_override().gravity
- if debug then player:hud_change(hangglider.debug[pname].id, "text", vel.y..', '..grav..', '..tostring(hangglider.airbreak[pname])) end
- -- If airbreaking used, increase the descent progression to not give
- -- mid-flight unequip/equip cycles a distance advantage.
- if hangglider.airbreak[pname] then
- if vel.y <= -4.0 then
- grav = -0.2 --Extreme measures are needed, as sometimes speed will get a bit out of control
- elseif vel.y <= -2.0 then
- grav = -0.02
- elseif vel.y <= -1.75 then
- grav = 0.00125 -- *1
- elseif vel.y <= -1.5 then
- grav = 0.0025 -- *2
- elseif vel.y <= -1.25 then
- grav = 0.005 -- *2
- elseif vel.y <= -1 then
- grav = 0.015 -- *3
- elseif vel.y <= -0.75 then
- grav = 0.04 -- *4
- elseif vel.y <= -0.5 then
- grav = 0.08 -- *4
- elseif vel.y <= -0.25 then
- grav = 0.12 -- *3
- elseif vel.y <= 0 then
- grav = 0.3 -- *3
- else -- vel.y > 0
- grav = 0.75 -- *1.5
- end
- else -- normal descent progression
- if vel.y <= -4.0 then
- grav = -0.2
- elseif vel.y <= -2.0 then
- grav = -0.02
- elseif vel.y <= -1.5 then
- grav = 0.00125
- elseif vel.y <= -1.25 then
- grav = 0.0025
- elseif vel.y <= -1 then
- grav = 0.005
- elseif vel.y <= -0.75 then
- grav = 0.01
- elseif vel.y <= -0.5 then
- grav = 0.02
- elseif vel.y <= -0.25 then
- grav = 0.04
- elseif vel.y <= 0 then
- grav = 0.1
- else -- vel.y > 0
- grav = 0.5
+
+ if not minetestd then
+ step_v = player:get_player_velocity().y
+ if step_v < 0 and step_v > -3 then
+ apply_physics_override(player, {speed=math.abs(step_v/2) + 0.75})
+ elseif step_v <= -3 then --Cap our gliding movement speed.
+ apply_physics_override(player, {speed=2.25})
+ else
+ remove_physics_override(player, {speed=1})
end
+ if debug then player:hud_change(hangglider.debug[pname].id, "text", step_v..', '..player:get_physics_override().gravity..', '..tostring(hangglider.airbreak[pname])) end
+ apply_physics_override(player, {gravity=((step_v + 3)/20)})
end
- player:set_physics_override({gravity = grav})
- end
+ --[[local vel = player:get_player_velocity()
+ if debug then player:hud_change(hangglider.debug[pname].id, "text", vel.y..', '..grav..', '..tostring(hangglider.airbreak[pname])) end
+
+ player:set_physics_override({gravity = (vel.y + 2.0)/20})
+ ]]end
+ end
+ end
+ if not hangglider.can_fly(pname,pos) then
+ if not self.warned then -- warning shot
+ self.warned = 0
+ hangglider.shot_sound(pos)
+ minetest.chat_send_player(pname, "Protected area! You will be shot down in two seconds by anti-aircraft guns!")
+ end
+ self.warned = self.warned + dtime
+ if self.warned > 2 then -- shoot down
+ player:set_hp(1)
+ player:get_inventory():remove_item("main", ItemStack("hangglider:hangglider"))
+ hangglider.shot_sound(pos)
+ canExist = false
end
end
if not canExist then
- player:set_physics_override({
- gravity = 1,
+
+ if not minetestd then
+ remove_physics_override(player, {
+ gravity=1,
jump = 1,
- speed = 1,
- })
+ speed = 1,})
+ end
hangglider.use[pname] = false
if HUD_Overlay then
player:hud_change(hangglider.id[pname], "text", "blank.png")
end
- hangglider.airbreak[pname] = false
+ --hangglider.airbreak[pname] = false
end
end
end
- if not canExist then
+ if not canExist then
self.object:set_detach()
- self.object:remove()
+ self.object:remove()
end
end
})
minetest.register_on_dieplayer(function(player)
- player:set_physics_override({
+ remove_physics_override(player, {
gravity = 1,
jump = 1,
})
minetest.register_on_joinplayer(function(player)
local pname = player:get_player_name()
- player:set_physics_override({
+ remove_physics_override(player, {
gravity = 1,
jump = 1,
})
alignment = {x=1, y=1},
offset = {x=0, y=0}
}) end
- if debug then
+ if debug then
hangglider.debug[pname] = {id = player:hud_add({hud_elem_type = "text",
position = {x=0.5, y=0.1},
text = "-",
-- ht = {50,50,50},
}
end
- hangglider.airbreak[pname] = false
+ --hangglider.airbreak[pname] = false
end)
minetest.register_on_leaveplayer(function(player)
hangglider.use[pname] = nil
if HUD_Overlay then hangglider.id[pname] = nil end
if debug then hangglider.debug[pname] = nil end
- hangglider.airbreak[pname] = nil
+ --hangglider.airbreak[pname] = nil
end)
minetest.register_tool("hangglider:hangglider", {
description = "Glider",
inventory_image = "glider_item.png",
stack_max=1,
- on_use = function(itemstack, user, pointed_thing)
- if not user then
+ on_use = function(itemstack, player, pointed_thing)
+ if not player then
return
end
- local pos = user:get_pos()
- local pname = user:get_player_name()
- if minetest.get_node(pos).name == "air" and not hangglider.use[pname] then --Equip
+ local pos = player:get_pos()
+ local pname = player:get_player_name()
+ if not hangglider.use[pname] then --Equip
minetest.sound_play("bedsheet", {pos=pos, max_hear_distance = 8, gain = 1.0})
- if HUD_Overlay then user:hud_change(hangglider.id[pname], "text", "glider_struts.png") end
- local vel = user:get_player_velocity().y
- if vel < -0.8 then -- engage mid-air, falling fast, so stop but ramp velocity more quickly
- hangglider.airbreak[pname] = true
- user:set_physics_override({
- gravity = 1,
- jump = 0,
- speed = 1.75,
- })
+ if HUD_Overlay then player:hud_change(hangglider.id[pname], "text", "glider_struts.png") end
+ local airbreak = false
+ local vel = player:get_player_velocity().y
+ --[[if vel < -1.5 then -- engage mid-air, falling fast, so stop but ramp velocity more quickly
+ --hangglider.airbreak[pname] = true
+ airbreak = true
local stopper = minetest.add_entity(pos, "hangglider:airstopper")
- stopper:get_luaentity().attach = user
- user:set_attach( stopper, "", {x=0,y=0,z=0}, {x=0,y=0,z=0})
- else
- user:set_physics_override({
- gravity = 0.02,
- jump = 0,
- speed = 1.75,
- })
+ minetest.after(0, function(stopper, player) --"Extreme Measures"
+ stopper:set_pos(player:get_pos())
+ stopper:get_luaentity().attach = player
+ player:set_attach( stopper, "", {x=0,y=0,z=0}, {x=0,y=0,z=0})
+ end, stopper, player)
+ end]]
+ if not airbreak then
+ if moveModelUp then
+ minetest.add_entity(pos, "hangglider:glider"):set_attach(player, "", {x=0,y=10,z=0}, {x=0,y=0,z=0})
+ else
+ minetest.add_entity(pos, "hangglider:glider"):set_attach(player, "", {x=0,y=0,z=0}, {x=0,y=0,z=0})
+ end
end
hangglider.use[pname] = true
+ apply_physics_override(player, {jump = 0})
-- if minetest 0.4.x use this:
- minetest.add_entity(user:get_pos(), "hangglider:glider"):set_attach(user, "", {x=0,y=0,z=0}, {x=0,y=0,z=0})
+
-- if minetest 5.x use this:
- -- minetest.add_entity(user:get_pos(), "hangglider:glider"):set_attach(user, "", {x=0,y=10,z=0}, {x=0,y=0,z=0})
+ -- minetest.add_entity(player:get_pos(), "hangglider:glider"):set_attach(player, "", {x=0,y=10,z=0}, {x=0,y=0,z=0})
itemstack:set_wear(itemstack:get_wear() + 255)
return itemstack
elseif hangglider.use[pname] then --Unequip
- if HUD_Overlay then user:hud_change(hangglider.id[pname], "text", "blank.png") end
+ if HUD_Overlay then player:hud_change(hangglider.id[pname], "text", "default_wood.png^[colorize:#0000:255") end
hangglider.use[pname] = false
end
end,
sound = {breaks = "default_tool_breaks"},
})
+minetest.register_craft({
+ type = "shapeless",
+ output = "hangglider:hangglider",
+ recipe = {"default:paper", "default:paper", "default:paper", "default:paper", "hangglider:hangglider", "default:paper", "default:paper", "default:paper", "default:paper"},
+})
+
minetest.register_craft({
output = "hangglider:hangglider",
recipe = {
projects / hangglider.git / blobdiff