遊戲人生 人生遊戲

physics.setScale()
Description:說明：


Sets the internal pixels-per-meter ratio that is used in converting between onscreen Corona coordinates and simulated physics coordinates. This should be done only once, before any physical objects are instantiated.
設置內部像素的每米的比例，用於在屏幕上的Corona坐標之間的轉換和模擬物理坐標。這項工作應該只有一次，在任何物理對象被實例化。


Changing this value has no visual consequences, and simply affects the accuracy of the physical model. The Box2D engine is tuned for simulating medium-sized objects between 0.1m and 10m in size, so it works best when the objects in your game are mapped to physical properties that fall roughly within this range.
改變這個值沒有視覺的後果，影響了準確性和簡單的物理模型。該 Box2D的發動機調整為模擬中等大小的物體之間的0.1米和10米的大小，因此它最適合當你的遊戲中的對象映射到物理特性大致屬於這個範圍之內。


The default scaling value is 30, which means that the optimal 0.1m to 10m range corresponds to visible sprites between 3 and 300 pixels in size, which should cover most typical iPhone content. For higher-resolution devices like iPad, Android, or iPhone 4, you may wish to increase this value to 60 or more.
默認縮放值是30，這意味著最佳0.1米至10米範圍對應於可見精靈3至300像素的大小，它應該包括最典型的iPhone內容。對於高解析度設備如iPad的，Android，或iPhone4，您可能希望增加該值到60以上。