mtcontrib/hangglider
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Code Issues Releases Wiki Activity

Simplified gravity/movement internals

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This commit is contained in:
Piezo_ 2018-11-26 05:43:55 +00:00
parent cc2cbd4973
commit d087e9648d
1 changed files with 38 additions and 75 deletions
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111
init.lua
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@ -34,6 +34,9 @@
-- 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
local HUD_Overlay = true --show glider struts as overlay on HUD
@ -44,20 +47,33 @@ 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
--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,
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
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
minetest.add_entity(player:get_pos(), "hangglider:glider"):set_attach(player, "", {x=0,y=0,z=0}, {x=0,y=0,z=0})
end
canExist = false
end
end
if not canExist then
self.attach:set_detach()
end
end
if not canExist then
self.object:remove()
end
end
@ -83,58 +99,9 @@ minetest.register_entity("hangglider:glider", {
if not (mrn_name.walkable or (mrn_name.drowning and mrn_name.drowning == 1)) 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
end
end
player:set_physics_override({gravity = grav})
player:set_physics_override({gravity = (vel.y + 2.0)/20})
end
end
end
@ -148,7 +115,7 @@ minetest.register_entity("hangglider:glider", {
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
@ -192,7 +159,7 @@ minetest.register_on_joinplayer(function(player)
-- ht = {50,50,50},
}
end
hangglider.airbreak[pname] = false
--hangglider.airbreak[pname] = false
end)
minetest.register_on_leaveplayer(function(player)
@ -200,7 +167,7 @@ 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", {
@ -216,27 +183,23 @@ minetest.register_tool("hangglider:hangglider", {
if minetest.get_node(pos).name == "air" and 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 airbreak = false
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 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,
})
end
user:set_physics_override({gravity = 0,jump=0,speed=1.75})
if not airbreak then
minetest.add_entity(user:get_pos(), "hangglider:glider"):set_attach(user, "", {x=0,y=0,z=0}, {x=0,y=0,z=0})
end
hangglider.use[pname] = true
-- 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})
itemstack:set_wear(itemstack:get_wear() + 255)