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add function to calculate balistic y speed

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This commit is contained in:
sapier 2013-02-05 21:14:40 +00:00
parent 9edd36b354
commit 0c2526b714
1 changed files with 20 additions and 0 deletions
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20
mobf/utils/geometry.lua
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@ -165,4 +165,24 @@ function mobf_calc_yaw(x,z)
return direction
end
-------------------------------------------------------------------------------
-- name: mobf_assert_backtrace(value)
--
--! @brief assert in case value is false
--
--! @param heightdiff height difference between shooter and target
--! @param time time to reach target
--! @param acceleration acceleration set for object
--
--! @return y-velocity at start
-------------------------------------------------------------------------------
function mobf_balistic_start_speed(heightdiff,time,acceleration)
mobf_assert_backtrace(heightdiff ~= nil)
mobf_assert_backtrace(time ~= nil)
mobf_assert_backtrace(time ~= nil)
mobf_assert_backtrace(acceleration ~= nil)
return (heightdiff - (acceleration/2) * (time*time)) / time
end
--!@}