Mercurial > games > semicongine

annotate semiconginev2/old/scene.nim @ 1218:56781cc0fc7c compiletime-tests

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did: renamge main package
author sam <sam@basx.dev>
date Wed, 17 Jul 2024 21:01:37 +0700
parents semicongine/old/scene.nim@a3eb305bcac2
children
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1 import std/tables
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2 import std/sequtils
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3 import std/strformat
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4 import std/hashes
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5
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6 import ./core
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7 import ./mesh
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8 import ./material
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9
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10 type
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11 Scene* = ref object
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12 name*: string
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13 shaderGlobals*: Table[string, DataList]
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14 meshes*: seq[Mesh]
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15 dirtyShaderGlobals: seq[string]
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16 loaded*: bool = false
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17
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18 proc Add*(scene: var Scene, mesh: MeshObject) =
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19 assert not scene.loaded, &"Scene {scene.name} has already been loaded, cannot add meshes"
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20 var tmp = new Mesh
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21 tmp[] = mesh
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22 scene.meshes.add tmp
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23
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24 proc Add*(scene: var Scene, mesh: Mesh) =
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25 assert not scene.loaded, &"Scene {scene.name} has already been loaded, cannot add meshes"
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26 assert not mesh.isNil, "Cannot add a mesh that is 'nil'"
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27 scene.meshes.add mesh
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28
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29 proc Add*(scene: var Scene, meshes: seq[Mesh]) =
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30 assert not scene.loaded, &"Scene {scene.name} has already been loaded, cannot add meshes"
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31 for mesh in meshes:
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32 assert not mesh.isNil, "Cannot add a mesh that is 'nil'"
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33 scene.meshes.add meshes
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34
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35 # generic way to add objects that have a mesh-attribute
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36 proc Add*[T](scene: var Scene, obj: T) =
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37 assert not scene.loaded, &"Scene {scene.name} has already been loaded, cannot add meshes"
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38 for name, value in obj.fieldPairs:
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39 when typeof(value) is Mesh:
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40 assert not value.isNil, "Cannot add a mesh that is 'nil': " & name
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41 scene.meshes.add value
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42 when typeof(value) is seq[Mesh]:
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43 assert not value.isNil, &"Cannot add a mesh that is 'nil': " & name
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44 scene.meshes.add value
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45
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46 proc AddShaderGlobalArray*[T](scene: var Scene, name: string, data: openArray[T]) =
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47 assert not scene.loaded, &"Scene {scene.name} has already been loaded, cannot add shader values"
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48 scene.shaderGlobals[name] = InitDataList(data)
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49 scene.dirtyShaderGlobals.add name
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50
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51 proc AddShaderGlobal*[T](scene: var Scene, name: string, data: T) =
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52 scene.AddShaderGlobalArray(name, [data])
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53
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54 proc GetShaderGlobalArray*[T](scene: Scene, name: string): ref seq[T] =
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55 scene.shaderGlobals[name][T]
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56
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57 proc GetShaderGlobal*[T](scene: Scene, name: string): T =
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58 GetShaderGlobalArray[T](scene, name)[][0]
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59
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60 proc SetShaderGlobalArray*[T](scene: var Scene, name: string, value: openArray[T]) =
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61 if scene.shaderGlobals[name, T][] == @value:
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62 return
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63 scene.shaderGlobals[name] = value
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64 if not scene.dirtyShaderGlobals.contains(name):
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65 scene.dirtyShaderGlobals.add name
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66
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67 proc SetShaderGlobal*[T](scene: var Scene, name: string, value: T) =
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68 scene.SetShaderGlobalArray(name, [value])
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69
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70 func DirtyShaderGlobals*(scene: Scene): seq[string] =
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71 scene.dirtyShaderGlobals
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72
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73 proc ClearDirtyShaderGlobals*(scene: var Scene) =
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74 scene.dirtyShaderGlobals.reset
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75
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76 func hash*(scene: Scene): Hash =
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77 hash(scene.name)
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78
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79 func UsesMaterial*(scene: Scene, materialType: MaterialType): bool =
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80 return scene.meshes.anyIt(it.material.theType == materialType)
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81
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82 func GetMaterials*(scene: Scene, materialType: MaterialType): seq[MaterialData] =
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83 for mesh in scene.meshes:
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84 if mesh.material.theType == materialType and (not result.contains(mesh.material)):
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85 result.add mesh.material