phy_bullet

Tells the physics engine that this object is a bullet.

语法：

phy_bullet;

返回： 布尔值

描述

This variable defines whether or not the instance is extremely fast moving (for example a bullet). The default value is false but if set to true this tells GameMaker Studio 2 that the instance will be moving at such high speeds that it will require more expensive collision detection to ensure it doesn't pass through other instances undetected.

例如：

with (instance_create_layer(x, y, "Bullets", obj_Shoot))
   {
   phy_bullet = true;
   physics_apply_local_impulse(0, 10, 0, 200);
   }

The above code creates a new instance and then defines it as being a "bullet" in the physics world before giving it a massive impulse along the y axis.

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