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annotate src/semicongine/thing.nim @ 61:0f04ba283558

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did: rename and update older demos to work with new APIs
author Sam <sam@basx.dev>
date Tue, 24 Jan 2023 10:22:38 +0700
parents c57285d292b6
children 7153eadb07eb
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60
c57285d292b6 did: deep refactoring of handling vertrex attribute and buffer updates, don't ask ;(
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1 import std/strformat
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2 import std/typetraits
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3
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4 import ./vertex
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5 import ./math/matrix
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6
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7 type
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8 Part* = ref object of RootObj
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9 thing: Thing
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10 Transform* = ref object of Part
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11 mat: Mat44
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12
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13 Thing* = ref object of RootObj
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14 name*: string
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15 parent*: Thing
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16 children*: seq[Thing]
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17 parts*: seq[Part]
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19
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20 func `$`*(thing: Thing): string = thing.name
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21 method `$`*(part: Part): string {.base.} = &"{part.thing} -> Part"
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22 method `$`*(part: Transform): string = &"{part.thing} -> Transform"
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23
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24 func newTransform*(mat: Mat44): Transform =
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25 result = new Transform
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26 result.mat = mat
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27
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28 proc add*(thing: Thing, child: Thing) =
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29 child.parent = thing
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30 thing.children.add child
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31 proc add*(thing: Thing, part: Part) =
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32 part.thing = thing
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33 thing.parts.add part
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34 proc add*(thing: Thing, children: seq[Thing]) =
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35 for child in children:
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36 child.parent = thing
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37 thing.children.add child
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38 proc add*(thing: Thing, parts: seq[Part]) =
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39 for part in parts:
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40 part.thing = thing
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41 thing.parts.add part
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42
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43 func newThing*(name: string = ""): Thing =
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44 result = new Thing
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45 result.name = name
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46 if result.name == "":
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47 result.name = &"Thing[{$(cast[ByteAddress](result))}]"
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48 func newThing*(name: string, firstChild: Thing, children: varargs[
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49 Thing]): Thing =
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50 result = new Thing
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51 result.add firstChild
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52 for child in children:
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53 result.add child
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54 result.name = name
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55 if result.name == "":
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56 result.name = &"Thing[{$(cast[ByteAddress](result))}]"
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57 proc newThing*(name: string, firstPart: Part, parts: varargs[Part]): Thing =
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58 result = new Thing
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59 result.name = name
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60 result.add firstPart
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61 for part in parts:
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62 result.add part
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63 if result.name == "":
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64 result.name = &"Thing[{$(cast[ByteAddress](result))}]"
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60
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66 func getModelTransform*(thing: Thing): Mat44 =
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67 result = Unit44
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68 var currentThing = thing
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69 while currentThing != nil:
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70 for part in currentThing.parts:
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71 if part of Transform:
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72 result = Transform(part).mat * result
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73 currentThing = currentThing.parent
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74
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75 iterator allPartsOfType*[T: Part](root: Thing): T =
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76 var queue = @[root]
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77 while queue.len > 0:
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78 let thing = queue.pop
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79 for part in thing.parts:
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80 if part of T:
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81 yield T(part)
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82 for child in thing.children:
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83 queue.insert(child, 0)
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84
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85 func firstWithName*(root: Thing, name: string): Thing =
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86 var queue = @[root]
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87 while queue.len > 0:
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88 let next = queue.pop
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89 for child in next.children:
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90 if child.name == name:
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91 return child
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92 queue.add child
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93
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94 func firstPartWithName*[T: Part](root: Thing, name: string): T =
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95 var queue = @[root]
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96 while queue.len > 0:
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97 let next = queue.pop
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98 for child in next.children:
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99 if child.name == name:
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100 for part in child.parts:
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101 if part of T:
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102 return T(part)
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103 queue.add child
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104
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105 func allWithName*(root: Thing, name: string): seq[Thing] =
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106 var queue = @[root]
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107 while queue.len > 0:
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108 let next = queue.pop
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109 for child in next.children:
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110 if child.name == name:
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111 result.add child
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112 queue.add child
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113
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114 func allPartsWithName*[T: Part](root: Thing, name: string): seq[T] =
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115 var queue = @[root]
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116 while queue.len > 0:
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117 let next = queue.pop
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118 for child in next.children:
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119 if child.name == name:
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120 for part in child.parts:
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121 if part of T:
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122 result.add T(part)
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123 queue.add child
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124
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125 iterator allThings*(root: Thing): Thing =
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126 var queue = @[root]
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127 while queue.len > 0:
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128 let next = queue.pop
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129 for child in next.children:
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130 queue.add child
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131 yield next
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132
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133 method update*(thing: Thing, dt: float32) {.base.} =
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134 echo "The update"
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135 let transform = thing.getModelTransform()
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136 for part in thing.parts:
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137 echo " The part ", part
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Sam <sam@basx.dev>
parents: 60
diff changeset
138 for name, value in part[].fieldPairs:
0f04ba283558 did: rename and update older demos to work with new APIs
Sam <sam@basx.dev>
parents: 60
diff changeset
139 echo " attribute ", name
0f04ba283558 did: rename and update older demos to work with new APIs
Sam <sam@basx.dev>
parents: 60
diff changeset
140 when typeof(value) is ModelTransformAttribute:
0f04ba283558 did: rename and update older demos to work with new APIs
Sam <sam@basx.dev>
parents: 60
diff changeset
141 value.data = @[transform.transposed()]
0f04ba283558 did: rename and update older demos to work with new APIs
Sam <sam@basx.dev>
parents: 60
diff changeset
142 echo "updated stuff"
0f04ba283558 did: rename and update older demos to work with new APIs
Sam <sam@basx.dev>
parents: 60
diff changeset
143
0f04ba283558 did: rename and update older demos to work with new APIs
Sam <sam@basx.dev>
parents: 60
diff changeset
144 method update*(part: Part, dt: float32) {.base.} = discard
0f04ba283558 did: rename and update older demos to work with new APIs
Sam <sam@basx.dev>
parents: 60
diff changeset
145