33 lines
748 B
Lua
33 lines
748 B
Lua
Class = require 'hump.class'
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require 'entities/physicsentity'
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-- rad per second
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local ROTATION_SPEED = math.pi / 2
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PowerUp = Class{
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__includes = PhysicsEntity,
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init = function(self, x, y, level, lifetime)
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PhysicsEntity.init(self, x, y, level, "static", 0)
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self.angle = 0
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self.age = 0
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self.lifetime = lifetime
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end;
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draw = function(self)
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-- Noop, implement in child
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end;
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update = function(self, dt)
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self.angle = self.angle + ROTATION_SPEED * dt
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if self.angle > math.pi * 2 then
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self.angle = self.angle - math.pi * 2
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end
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self.age = self.age + dt
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if self.age > self.lifetime then
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self:delete()
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end
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end;
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}
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