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Tercio@58
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1
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2
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3 local DF = _G ["DetailsFramework"]
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4 if (not DF or not DetailsFrameworkCanLoad) then
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5 return
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6 end
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7
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8 local UnitExists = UnitExists
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9 local atan2 = math.atan2
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10 local pi = math.pi
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11 local abs = math.abs
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12
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13 SMALL_FLOAT = 0.000001
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14
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15 --find distance between two players
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16 function DF:GetDistance_Unit (unit1, unit2)
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17 if (UnitExists (unit1) and UnitExists (unit2)) then
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18 local u1X, u1Y = UnitPosition (unit1)
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19 local u2X, u2Y = UnitPosition (unit2)
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20
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21 local dX = u2X - u1X
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22 local dY = u2Y - u1Y
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23
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24 return ((dX*dX) + (dY*dY)) ^ .5
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25 end
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26 return 0
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27 end
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28
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29 --find distance between two points
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30 function DF:GetDistance_Point (x1, y1, x2, y2)
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31 local dx = x2 - x1
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32 local dy = y2 - y1
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33 return ((dx * dx) + (dy * dy)) ^ .5
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34 end
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35
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36 --find a rotation for an object from a point to another point
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37 function DF:FindLookAtRotation (x1, y1, x2, y2)
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38 return atan2 (y2 - y1, x2 - x1) + pi
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39 end
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40
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41 --find the value scale between two given values. e.g: value of 500 in a range 0-100 result in 10 in a scale for 0-10
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42 function DF:MapRangeClamped (inputX, inputY, outputX, outputY, value)
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43 return DF:GetRangeValue (outputX, outputY, Clamp (DF:GetRangePercent (inputX, inputY, value), 0, 1))
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44 end
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45
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46 --find the value scale between two given values. e.g: value of 75 in a range 0-100 result in 7.5 in a scale for 0-10
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47 function DF:MapRangeUnclamped (inputX, inputY, outputX, outputY, value)
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48 return DF:GetRangeValue (outputX, outputY, DF:GetRangePercent (inputX, inputY, value))
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49 end
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50
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51 --find the normalized percent of the value in the range. e.g range of 200-400 and a value of 250 result in 0.25
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52 function DF:GetRangePercent (minValue, maxValue, value)
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53 return (value - minValue) / (maxValue - minValue)
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54 end
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55
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56 --find the value in the range given from a normalized percent. e.g range of 200-400 and a percent of 0.8 result in 360
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57 function DF:GetRangeValue (minValue, maxValue, percent)
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58 return Lerp (minValue, maxValue, percent)
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59 end
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60
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61 --dot product of two 2D Vectors
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62 function DF:GetDotProduct (value1, value2)
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63 return (value1.x * value2.x) + (value1.y * value2.y)
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64 end
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65
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66 --normalized value 0-1 result in the value on the range given, e.g 200-400 range with a value of .5 result in 300
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67 function DF:LerpNorm (minValue, maxValue, value)
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68 return (minValue + value * (maxValue - minValue))
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69 end
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70
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71 --change the color by the deltaTime
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72 function DF:LerpLinearColor (deltaTime, interpSpeed, r1, g1, b1, r2, g2, b2)
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73 deltaTime = deltaTime * interpSpeed
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74 local r = r1 + (r2 - r1) * deltaTime
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75 local g = g1 + (g2 - g1) * deltaTime
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76 local b = b1 + (b2 - b1) * deltaTime
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77 return r, g, b
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78 end
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79
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80 --check if a number is near another number by a tolerance
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81 function DF:IsNearlyEqual (value1, value2, tolerance)
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82 tolerance = tolerance or SMALL_FLOAT
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83 return abs (value1 - value2) <= tolerance
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84 end
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85
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86 --check if a number is near zero
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87 function DF:IsNearlyZero (value, tolerance)
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88 tolerance = tolerance or SMALL_FLOAT
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89 return abs (value) <= tolerance
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90 end
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91
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92 --check if a number is within a two other numbers, if isInclusive is true, it'll include the max value
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93 function DF:IsWithin (minValue, maxValue, value, isInclusive)
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94 if (isInclusive) then
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95 return ((value >= minValue) and (value <= maxValue))
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96 else
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97 return ((value >= minValue) and (value < maxValue))
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98 end
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99 end
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100
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101 --dont allow a number ot be lower or bigger than a certain range
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102 function DF:Clamp (minValue, maxValue, value)
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103 return value < minValue and minValue or value < maxValue and value or maxValue
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104 end
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105
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106 function DF:ScaleBack ()
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107
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108 end
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