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Smooth boat turning to reach player yaw as he accelerates forward

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This commit is contained in:
Marcin 2015-11-27 00:30:18 +01:00
parent abf0ca9c7e
commit 00b1b38ff0
1 changed files with 21 additions and 15 deletions
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36
mods/boats/init.lua
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@ -1,3 +1,5 @@
local pi = math.pi
--
-- Helper functions
--
@ -9,10 +11,12 @@ end
local function get_sign(i)
if i == 0 then
return 0
if i < 0 then
return -1
elseif i > 0 then
return 1
else
return i / math.abs(i)
return 0
end
end
@ -55,7 +59,7 @@ function boat.on_rightclick(self, clicker)
self.driver = nil
clicker:set_detach()
default.player_attached[name] = false
default.player_set_animation(clicker, "stand" , 30)
default.player_set_animation(clicker, "stand", 30)
local pos = clicker:getpos()
pos = {x = pos.x, y = pos.y + 0.2, z = pos.z}
minetest.after(0.1, function()
@ -77,7 +81,7 @@ function boat.on_rightclick(self, clicker)
minetest.after(0.2, function()
default.player_set_animation(clicker, "sit" , 30)
end)
self.object:setyaw(clicker:get_look_yaw() - math.pi / 2)
self.object:setyaw(clicker:get_look_yaw() - pi / 2)
end
end
@ -128,24 +132,26 @@ function boat.on_step(self, dtime)
if self.driver then
local ctrl = self.driver:get_player_control()
local yaw = self.object:getyaw()
local delta = 0
if ctrl.up then
self.v = self.v + 0.1
local d = self.driver:get_look_yaw() - pi / 2 - yaw
d = d - math.floor((1 + d / pi) / 2) * pi * 2
delta = delta + d * self.v * dtime / 10
elseif ctrl.down then
self.v = self.v - 0.1
end
if ctrl.left then
if self.v < 0 then
self.object:setyaw(yaw - (1 + dtime) * 0.03)
else
self.object:setyaw(yaw + (1 + dtime) * 0.03)
end
delta = delta + (1 + dtime) * 0.03
elseif ctrl.right then
if self.v < 0 then
self.object:setyaw(yaw + (1 + dtime) * 0.03)
else
self.object:setyaw(yaw - (1 + dtime) * 0.03)
end
delta = delta - (1 + dtime) * 0.03
end
if self.v < 0 then
yaw = yaw - delta
else
yaw = yaw + delta
end
self.object:setyaw(yaw)
end
local velo = self.object:getvelocity()
if self.v == 0 and velo.x == 0 and velo.y == 0 and velo.z == 0 then