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29 lines
1.1 KiB
Lua
29 lines
1.1 KiB
Lua
function radians_to_vectors(rad)
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local pi = math.pi
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if (rad>=0) and (rad<=pi/4) or (rad<=2*pi) and (rad>=(3/2+1/4)*pi) then
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return {left = {x=-1,z=0,y=0},right = { x=1, z = 0,y=0 } }
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elseif (rad >= 1/4*pi) and (rad <= (1/2+1/4)*pi) then
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return { left = {x = 0 ,z=-1,y=0}, right = { x = 0, z = 1 ,y=0} }
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elseif (rad >= (1-1/4)*pi ) and (rad <= (3/2-1/4)*pi ) then
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return { left = { x = 1, z =0 ,y=0}, right = { x = -1, z = 0 ,y=0} }
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else
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return { left = { z =1, x = 0 ,y=0} , right = { z = -1 , x = 0,y=0 }}
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end
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end
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function radians_to_direction_looking_forward(rad)
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if rad == nil then return {x=1,z=0,y=0} end
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local pi = math.pi
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if (rad>=0) and (rad<=pi/4) or (rad<=2*pi) and (rad>=(3/2+1/4)*pi) then
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return {x=0, z =1 ,y=0}
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elseif (rad >= 1/4*pi) and (rad <= (1/2+1/4)*pi) then
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return {x=-1,z=0,y=0}
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elseif (rad >= (1-1/4)*pi ) and (rad <= (3/2-1/4)*pi ) then
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return {x=0,z=-1,y=0}
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else
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return {x=1,z=0,y=0}
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end
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end
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