add pova support (#20)

* Update mod.conf

add pova optional dependency

* Update init.lua

add support for pova

* Update .luacheckrc

---------

Co-authored-by: Luke aka SwissalpS <161979+SwissalpS@users.noreply.github.com>

.luacheckrc

@@ -8,5 +8,6 @@ read_globals = {
 	"vector", "ItemStack",
 
 	"player_monoids",
+	"pova",
 	"unifieddyes",
 }

README.md

@@ -31,17 +31,3 @@ The hang glider will wear out every time you use it. The hang glider can be repa
 If the `areas` mod is installed, airspace restrictions can be added to areas using the `/area_flak` command.
 
 When using a hang glider in an area with flak enabled, you will get shot down a few seconds after entering the area, this reduces your HP to 1 and destroys your hang glider.
-
-## API
-
-#### Custom "can fly" checks
-
-```lua
-hangglider.add_fly_check(function(name, player)
-	-- `name` is the playername
-	-- `player` is the PlayerRef
-	-- Add your code here
-	-- Must return `true` (can fly) or `false` (can't fly)
-	return true
-end)
-```

init.lua

@@ -1,4 +1,3 @@
-hangglider = {}
 
 hangglider = {
 	translator = minetest.get_translator('hangglider'),
@@ -6,6 +5,7 @@ hangglider = {
 local S = hangglider.translator
 
 local has_player_monoids = minetest.get_modpath("player_monoids")
+local has_pova = minetest.get_modpath("pova")
 local has_areas = minetest.get_modpath("areas")
 
 local enable_hud_overlay = minetest.settings:get_bool("hangglider.enable_hud_overlay", true)
@@ -66,6 +66,10 @@ local function set_physics_overrides(player, overrides)
 		for name, value in pairs(overrides) do
 			player_monoids[name]:add_change(player, value, "hangglider:glider")
 		end
+	elseif has_pova then
+		pova.add_override(player:get_player_name(), "hangglider:glider",
+				{jump = 0, speed = overrides.speed, gravity = overrides.gravity})
+		pova.do_override(player)
 	else
 		player:set_physics_override(overrides)
 	end
@@ -76,41 +80,28 @@ local function remove_physics_overrides(player)
 		for _, name in pairs({"jump", "speed", "gravity"}) do
 			player_monoids[name]:del_change(player, "hangglider:glider")
 		end
+	elseif has_pova then
+		pova.del_override(player:get_player_name(), "hangglider:glider")
+		pova.do_override(player)
 	else
 		player:set_physics_override({jump = 1, speed = 1, gravity = 1})
 	end
 end
 
-local fly_checks = {}
+local function can_fly(pos, name)
-
+	if not enable_flak then
-function hangglider.add_fly_check(func)
+		return true
-	table.insert(fly_checks, func)
-end
-
-local function can_fly_flak(name, pos)
-	-- Area flak check
-	if enable_flak then
-		local flak = false
-		local owners = {}
-		for _, area in pairs(areas:getAreasAtPos(pos)) do
-			if area.flak then
-				flak = true
-			end
-			owners[area.owner] = true
-		end
-		if flak and not owners[name] then
-			return false
-		end
 	end
-end
+	local flak = false
-
+	local owners = {}
-local function can_fly_custom(name, player)
+	for _, area in pairs(areas:getAreasAtPos(pos)) do
-	-- Custom checks set by other mods
+		if area.flak then
-	for _, func in ipairs(fly_checks) do
+			flak = true
-		local ret = func(name, player)
-		if ret == false then
-			return false
 		end
+		owners[area.owner] = true
+	end
+	if flak and not owners[name] then
+		return false
 	end
 	return true
 end
@@ -166,7 +157,7 @@ local function hangglider_step(self, dtime)
 					})
 				end
 			end
-			if not can_fly_flak(name, pos) then
+			if not can_fly(pos, name) then
 				if not self.flak_timer then
 					self.flak_timer = 0
 					shoot_flak_sound(pos)
@@ -181,9 +172,6 @@ local function hangglider_step(self, dtime)
 					gliding = false
 				end
 			end
-			if not can_fly_custom(name, player) then
-				gliding = false
-			end
 			if not gliding then
 				remove_physics_overrides(player)
 				hanggliding_players[name] = nil

mod.conf

@@ -1,5 +1,5 @@
 name = hangglider
 description = Adds a functional hang glider for exploring
 depends = default, wool, dye
-optional_depends = areas, player_monoids, unifieddyes
+optional_depends = areas, player_monoids, pova, unifieddyes
 min_minetest_version = 5.0