Mercurial > games > semicongine
annotate src/semicongine/scene.nim @ 254:0fab53ca30b7
did: various improvments
| author | Sam <sam@basx.dev> |
|---|---|
| date | Wed, 24 May 2023 22:37:57 +0700 |
| parents | beb41c93aa3f |
| children | d1ee2a815fa1 |
| rev | line source |
|---|---|
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1 import std/strformat |
| 247 | 2 import std/strutils |
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3 import std/tables |
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4 import std/hashes |
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5 import std/typetraits |
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6 |
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7 import ./core |
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8 |
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9 type |
| 108 | 10 Component* = ref object of RootObj |
| 109 | 11 entity*: Entity |
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12 |
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13 Scene* = object |
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14 name*: string |
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15 root*: Entity |
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16 shaderGlobals*: Table[string, DataList] |
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17 textures*: Table[string, seq[Texture]] |
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18 |
| 108 | 19 Entity* = ref object of RootObj |
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20 name*: string |
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21 transform*: Mat4 # todo: cache transform + only update VBO when transform changed |
| 108 | 22 parent*: Entity |
| 23 children*: seq[Entity] | |
| 109 | 24 components*: seq[Component] |
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25 |
| 247 | 26 func getModelTransform*(entity: Entity): Mat4 = |
| 27 result = Unit4 | |
| 28 var currentEntity = entity | |
| 29 while currentEntity != nil: | |
| 30 result = currentEntity.transform * result | |
| 31 currentEntity = currentEntity.parent | |
| 32 | |
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33 func addShaderGlobal*[T](scene: var Scene, name: string, data: T) = |
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34 scene.shaderGlobals[name] = newDataList(thetype=getDataType[T]()) |
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35 setValues(scene.shaderGlobals[name], @[data]) |
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36 |
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37 func addShaderGlobalArray*[T](scene: var Scene, name: string, data: seq[T]) = |
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38 scene.shaderGlobals[name] = newDataList(thetype=getDataType[T]()) |
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39 setValues(scene.shaderGlobals[name], data) |
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40 |
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41 func getShaderGlobal*[T](scene: Scene, name: string): T = |
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42 getValues[T](scene.shaderGlobals[name])[0] |
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43 |
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44 func getShaderGlobalArray*[T](scene: Scene, name: string): seq[T] = |
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45 getValues[T](scene.shaderGlobals[name]) |
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46 |
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47 func setShaderGlobal*[T](scene: var Scene, name: string, value: T) = |
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48 setValues[T](scene.shaderGlobals[name], @[value]) |
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49 |
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50 func setShaderGlobalArray*[T](scene: var Scene, name: string, value: seq[T]) = |
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51 setValues[T](scene.shaderGlobals[name], value) |
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52 |
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53 func addTextures*(scene: var Scene, name: string, textures: seq[Texture], interpolation=VK_FILTER_LINEAR) = |
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54 scene.textures[name] = textures |
| 201 | 55 |
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56 func addTexture*(scene: var Scene, name: string, texture: Texture) = |
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57 scene.textures[name] = @[texture] |
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58 |
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59 func newScene*(name: string, root: Entity): Scene = |
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60 Scene(name: name, root: root) |
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61 |
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62 func hash*(scene: Scene): Hash = |
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63 hash(scene.name) |
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64 |
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65 func `==`*(a, b: Scene): bool = |
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66 a.name == b.name |
| 127 | 67 |
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68 func hash*(entity: Entity): Hash = |
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69 hash(cast[pointer](entity)) |
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70 |
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71 func hash*(component: Component): Hash = |
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72 hash(cast[pointer](component)) |
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73 |
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74 method `$`*(entity: Entity): string {.base.} = entity.name |
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75 method `$`*(component: Component): string {.base.} = |
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76 "Unknown Component" |
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77 |
| 247 | 78 proc prettyRecursive*(entity: Entity): seq[string] = |
| 79 var compList: seq[string] | |
| 80 for comp in entity.components: | |
| 81 compList.add $comp | |
| 82 | |
| 83 var trans = entity.transform.col(3) | |
| 84 var pos = entity.getModelTransform().col(3) | |
| 85 result.add "- " & $entity & " [" & $trans.x & ", " & $trans.y & ", " & $trans.z & "] -> [" & $pos.x & ", " & $pos.y & ", " & $pos.z & "]" | |
| 86 if compList.len > 0: | |
| 87 result.add " [" & compList.join(", ") & "]" | |
| 88 | |
| 89 for child in entity.children: | |
| 90 for childLine in child.prettyRecursive: | |
| 91 result.add " " & childLine | |
| 92 | |
| 93 proc pretty*(entity: Entity): string = | |
| 94 entity.prettyRecursive.join("\n") | |
| 95 | |
| 109 | 96 proc add*(entity: Entity, child: Entity) = |
| 97 child.parent = entity | |
| 98 entity.children.add child | |
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99 proc add*(entity: Entity, component: Component) = |
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100 component.entity = entity |
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101 entity.components.add component |
| 109 | 102 proc add*(entity: Entity, children: seq[Entity]) = |
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103 for child in children: |
| 109 | 104 child.parent = entity |
| 105 entity.children.add child | |
| 106 proc add*(entity: Entity, components: seq[Component]) = | |
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107 for component in components: |
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108 component.entity = entity |
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109 entity.components.add component |
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110 |
| 109 | 111 func newEntity*(name: string = ""): Entity = |
| 108 | 112 result = new Entity |
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113 result.name = name |
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114 result.transform = Unit4 |
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115 if result.name == "": |
| 108 | 116 result.name = &"Entity[{$(cast[ByteAddress](result))}]" |
| 117 | |
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118 func newEntity*(name: string, firstChild: Entity, children: varargs[Entity]): Entity = |
| 108 | 119 result = new Entity |
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120 result.add firstChild |
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121 for child in children: |
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122 result.add child |
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123 result.name = name |
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124 result.transform = Unit4 |
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125 if result.name == "": |
| 108 | 126 result.name = &"Entity[{$(cast[ByteAddress](result))}]" |
| 127 | |
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128 proc newEntity*(name: string, firstComponent: Component, components: varargs[Component]): Entity = |
| 108 | 129 result = new Entity |
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130 result.name = name |
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131 result.add firstComponent |
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132 for component in components: |
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133 result.add component |
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134 if result.name == "": |
| 108 | 135 result.name = &"Entity[{$(cast[ByteAddress](result))}]" |
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136 result.transform = Unit4 |
| 28 | 137 |
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138 iterator allComponentsOfType*[T: Component](root: Entity): var T = |
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139 var queue = @[root] |
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140 while queue.len > 0: |
| 109 | 141 let entity = queue.pop |
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142 for component in entity.components.mitems: |
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143 if component of T: |
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144 yield T(component) |
| 109 | 145 for i in countdown(entity.children.len - 1, 0): |
| 146 queue.add entity.children[i] | |
| 28 | 147 |
| 108 | 148 func firstWithName*(root: Entity, name: string): Entity = |
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149 var queue = @[root] |
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150 while queue.len > 0: |
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151 let next = queue.pop |
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152 for child in next.children: |
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153 if child.name == name: |
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154 return child |
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155 queue.add child |
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156 |
| 254 | 157 func `[]`*(scene: Scene, name: string): Entity = |
| 158 return scene.root.firstWithName(name) | |
| 159 | |
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160 func firstComponentWithName*[T: Component](root: Entity, name: string): T = |
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161 var queue = @[root] |
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162 while queue.len > 0: |
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163 let next = queue.pop |
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164 for child in next.children: |
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165 if child.name == name: |
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166 for component in child.components: |
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167 if component of T: |
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168 return T(component) |
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169 queue.add child |
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170 |
| 108 | 171 func allWithName*(root: Entity, name: string): seq[Entity] = |
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172 var queue = @[root] |
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173 while queue.len > 0: |
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174 let next = queue.pop |
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175 for child in next.children: |
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176 if child.name == name: |
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177 result.add child |
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178 queue.add child |
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179 |
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180 func allComponentsWithName*[T: Component](root: Entity, name: string): seq[T] = |
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181 var queue = @[root] |
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182 while queue.len > 0: |
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183 let next = queue.pop |
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184 for child in next.children: |
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185 if child.name == name: |
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186 for component in child.components: |
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187 if component of T: |
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188 result.add T(component) |
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189 queue.add child |
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190 |
| 109 | 191 iterator allEntities*(root: Entity): Entity = |
| 28 | 192 var queue = @[root] |
| 193 while queue.len > 0: | |
| 194 let next = queue.pop | |
| 195 for child in next.children: | |
| 196 queue.add child | |
| 197 yield next |