The discussion revolves around the physics involved in calculating the effects of throwing water, particularly in the context of a game design idea. Participants explore various aspects of classical mechanics, fluid dynamics, and the challenges of simulating realistic water behavior in games.
Participants express a range of views on the physics involved, with some agreeing on the use of classical mechanics while others highlight the complexities of fluid dynamics. There is no consensus on how to effectively calculate damage or simulate water behavior.
Limitations include the challenges of accurately simulating fluid dynamics, the dependence on computational power, and the distinction between visual representation and physical simulation in game design.
"Damage" is not a variable that classic physics deals with. It can model forces, accelerations, velocities, trajectories and air resistance. For fluids, as has been mentioned, even this much can quickly get out of hand.nexteon said:How would I calculate the damage anything would take
I mean if you were in an ocean and got a handful of water, or dipped you hand in water and throw the droplets at speeds that would act like a bullet, etc. I got the idea from one piece an anime and also the effects of a tornado. In one piece a fish man called arlong, goes above the ocean and flicks his hands and he described the droplets as acting like a shotgun. For the tornado, I heard that wheat was picked up and able to penetrate concrete at high speeds. I thought it would be the same idea for water. Here’s a video below for the anime reference:jedishrfu said:You mean as in throwing a water balloon? Or a snowball or worse an ice ball?
lets pick snowball. When you throw it, it is under the control of gravity and you would need only Classical physics in particular kinematics to describe its motion. The motion without air resistance is basically a parabolic path That depends on the elevation thrown like 30 degrees or 45 degrees upward and the amount of force used to throw it.
Here’s more details on it
http://hyperphysics.phy-astr.gsu.edu/hbase/traj.html
also Khan Academy will have a video describing the physics of it.
Okay, I think I can still work with what you said about it. I thinking that instead of actually simulating water, it would be replace with a 3D object of some kind and be textured to look like water. If I wasn’t clear on how I imagined the water and throwing would act like check the video below:Borek said:Broadly speaking "classical mechanical" is what you need.
Note however, that when it comes to liquids things get insanely difficult quite fast. Basically we don't have enough computing power to properly simulate behavior of water (which is why it almost always looks unnatural in games, think rivers that pretend to flow, waves that pretend to wave and waterfalls that pretend to fall). As far as I am aware games just use tricks to make the water look and behave reasonably OK, that's hardly a simulation.