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Add vector.angle
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@ -175,6 +175,13 @@ function dot(v, other_v)
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return sum
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return sum
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end
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end
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--+ Angle between two vectors
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--> Signed angle in radians
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function angle(v, other_v)
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-- Based on dot(v, w) = |v| * |w| * cos(x)
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return math.acos(dot(v, other_v) / length(v) / length(other_v))
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end
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function box_box_collision(diff, box, other_box)
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function box_box_collision(diff, box, other_box)
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for index, diff in pairs(diff) do
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for index, diff in pairs(diff) do
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if box[index] + diff > other_box[index + 3] or other_box[index] > box[index + 3] + diff then
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if box[index] + diff > other_box[index + 3] or other_box[index] > box[index + 3] + diff then
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