Created
September 23, 2016 06:25
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function update(self, dt) | |
local camera_pos=self.original_position or go.get_position() | |
self.shake=vmath.vector3() | |
if self.shakes and next(self.shakes) then | |
for i,shake in pairs(self.shakes) do | |
shake.time=shake.time-dt | |
shake.to_target=shake.to_target-dt | |
if shake.to_target<=0 then | |
shake.a=vmath.vector3(shake.b) | |
shake.b=vmath.vector3((math.random()-0.5)*shake.x,(math.random()-0.5)*shake.y, 0) | |
shake.to_target=math.min(shake.time, shake.speed) | |
shake.to_target_max=shake.to_target | |
end | |
self.shake=self.shake+vmath.lerp(shake.to_target/shake.to_target_max, shake.b, shake.a) | |
if shake.time<=0 then | |
table.remove(self.shakes, i) | |
end | |
end | |
elseif self.original_position then | |
camera_pos=self.original_position | |
self.original_position=nil | |
end | |
go.set_position(camera_pos+self.shake) | |
end | |
function on_message(self, message_id, message, sender) | |
if message_id==hash("shake") then | |
self.original_position=go.get_position() | |
if not self.shakes then | |
self.shakes={} | |
end | |
message.to_target=0 | |
message.a=vmath.vector3() | |
message.b=vmath.vector3() | |
table.insert(self.shakes, message) | |
end | |
end | |
function on_reload(self) | |
msg.post("#", "shake", {time=2.75, x=35, y=35, speed=0.033}) | |
end | |
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