Recent content by zazz0000

  1. Z

    Comp Sci Helicopter Auto-Hover: Solve the Challenge in Minimal Time

    @256bits Hope I can clarify the problem a bit. First the goal, which is to achieve a state where dV, V, and A are simultaneously equal to 0 in as little time t as possible. So I believe that can be expressed as 0∫tdV dt = initial 0∫tsin(A) dt = -Vinitial, at least if we disregard air drag R...
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    Comp Sci Helicopter Auto-Hover: Solve the Challenge in Minimal Time

    @256bits The relationship of V to pitch angle (A) is the acceleration of the helicopter. The acceleration of the helicopter is t * cos(A) / m, where t (thrust) and m (mass). Both t and m are constant, so those can be disregarded, so we just have acceleration = cos(A) Hope that makes sense, Thanks
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    Comp Sci Helicopter Auto-Hover: Solve the Challenge in Minimal Time

    @FactChecker Appreciate your response. The slight issue is that the game already has all the physics mentioned above in place. I certainly already have some number "cheats" in the game, but I guess this is where I would like to draw the line. While the biggest reason for me posting here is to...
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    Comp Sci Helicopter Auto-Hover: Solve the Challenge in Minimal Time

    Hello again everybody. Encountered another challenge with the helicopter game we've been writing. For sake of simplicity, let's consider this to be a one-dimensional problem. I have a helicopter traveling at speed V and an arbitrary pitch angle A. The acceleration of the helicopter is defined...
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    Comp Sci Solving the ballistic trajectory equation for Launch Angle

    @BvU @PeroK @Mark44 Wow thanks guys, this is awesome! Works flawlessly. Plus this resource is really nice to have out there, since hours and hours of googling didn't yield a solution for this, even though it seems like a very useful function. Thanks again!
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    Comp Sci Solving the ballistic trajectory equation for Launch Angle

    @PeroK I'm not quite as nimble as you are I'm sure as far as math goes, what would the quadratic look like in the end? And ultimately, how would that be solved for α? P.S. I really appreciate you guys helping me on this, I thought this thread was going to go unnoticed and ultimately die
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    Comp Sci Solving the ballistic trajectory equation for Launch Angle

    @PeroK that is correct, yes. I suppose it's safe to say that Y will always be zero (not sure if that's of any help)
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    Comp Sci Solving the ballistic trajectory equation for Launch Angle

    For context, I am shooting bullets or unguided rockets from a helicopter or a ground vehicle. The ranges can be pretty long, I'd say over a kilometer, while the travel speed of the projectile is currently significantly lower than the real-life counterparts, for example 120m/s vs an actual...
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    Comp Sci Solving the ballistic trajectory equation for Launch Angle

    Hi @BvU Appreciate the response and the breakdown. I've been scouring the internet and other various resources and as you point out, the case does seem to be generally avoided. So it seems like there's no elegant solution for solving for α here (unless I'm looking right past it). Full...
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    Comp Sci Solving the ballistic trajectory equation for Launch Angle

    In a process of writing a game. Effectively need to know how to angle the barrel for the projectile to hit the selected target. So for the equation y = h + x * tan(α) - g * x² / 2 * V₀² * cos²(α) Everything except α is known. Could anyone more wise in the ways of science than me help me solve...
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