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物体做抛物线运动是游戏中基本运动物理模型之一！ 在PC游戏中可以由重力公式 轻易模拟，但在手机游戏中 ，由于多数手机不支持浮点运算 因此不能用 sin ，cos， 来分解初速度。 所以只能用近似模拟的方法！ 我所采用的是：先放大后缩小的模拟方式，并且为了更精确加入了一定的偏移量。-objects do parabolic movement is the basic game campaign physical model one! The PC game can be easily simulated gravity formula, but in mobile phone games, because most phones do not support floating-point operations can not be used sin, cos, to the early speed of decomposition. Therefore, it can only approximate simulation method! I have adopted is : Go after the first amplification of a simulated manner, and in order to more accurately by adding a certain amount of offset.
