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Add max yspeed

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This commit is contained in:
Jean-André Santoni 2017-06-29 00:51:08 +02:00
parent 1d373461a8
commit f404c68d73
1 changed files with 3 additions and 2 deletions
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5
ninja.lua
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@ -12,6 +12,7 @@ function newNinja(object)
n.xaccel = 900
n.yaccel = 600
n.max_xspeed = 150
n.max_yspeed = 280
n.friction = 20
n.groundfriction = 20
n.airfriction = 2
@ -122,6 +123,7 @@ function ninja:update(dt)
-- gravity
if not on_the_ground then
self.yspeed = self.yspeed + self.yaccel * dt
self.yspeed = math.min(self.yspeed, self.max_yspeed)
self.y = self.y + dt * self.yspeed
end
@ -183,8 +185,7 @@ function ninja:update(dt)
-- decelerating
self.friction = on_the_ground and self.groundfriction or self.airfriction
if not (JOY_RIGHT and self.xspeed > 0)
and not (JOY_LEFT and self.xspeed < 0)
if not JOY_RIGHT and not JOY_LEFT
then
if self.xspeed > 0 then
self.xspeed = self.xspeed - self.friction