annotate examples/E04_input.nim @ 537:f5af3c5421c5

fix: disable mesa layer in release build
author Sam <sam@basx.dev>
date Mon, 06 Feb 2023 23:36:55 +0700
parents 21c276c0a968
children fdd80220b5ff
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1 import std/enumerate
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2 import std/strutils
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3 import std/typetraits
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4 import std/times
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5 import std/math
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6
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7 import semicongine
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8
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9 type
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10 # define type of vertex
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11 VertexDataA = object
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12 position: PositionAttribute[Vec3]
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13 color: ColorAttribute[Vec4]
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14 transform: ModelTransformAttribute
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15 Uniforms = object
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16 projection: ViewProjectionTransform
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17
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18 const
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19 arrow = @[
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20 Vec3([-1'f32, -1'f32, 0'f32]),
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21 Vec3([1'f32, -1'f32, 0'f32]),
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22 Vec3([-0.3'f32, -0.3'f32, 0'f32]),
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23 Vec3([-0.3'f32, -0.3'f32, 0'f32]),
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24 Vec3([-1'f32, 1'f32, 0'f32]),
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25 Vec3([-1'f32, -1'f32, 0'f32]),
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26 ]
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27 # keyboard layout, specifying rows with key widths, negative numbers are empty spaces
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28 keyrows = (
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29 [1.0, -0.6, 1.0, 1.0, 1.0, 1.0, -0.5, 1.0, 1.0, 1.0, 1.0, -0.5, 1.0, 1.0,
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30 1.0, 1.0, -0.1, 1.0, 1.0, 1.0],
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31 [1.2, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.8, -0.1,
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32 1.0, 1.0, 1.0],
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33 [1.8, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, -1.5, 1.0,
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34 1.0, 1.0],
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35 [2.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0],
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36 [2.6, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 2.8, -1.3, 1.0],
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37 [1.5, 1.5, 1.5, 6, 1.5, 1.5, -1.2, 1.5, -0.1, 1.0, 1.0, 1.0],
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38 )
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39 keyDimension = 50'f32
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40 keyGap = 10'f32
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41 backgroundColor = Vec4([0.6705882352941176'f32, 0.6078431372549019'f32,
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42 0.5882352941176471'f32, 0'f32])
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43 baseColor = Vec4([0.9411764705882353'f32, 0.9058823529411765'f32,
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44 0.8470588235294118'f32, 0'f32])
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45 activeColor = Vec4([0.6509803921568628'f32, 0.22745098039215686'f32,
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46 0.3137254901960784'f32, 0'f32])
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47
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48 arrow_colors = @[
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49 baseColor * 0.9'f32,
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50 baseColor * 0.9'f32,
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51 baseColor * 0.9'f32,
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52 baseColor * 0.8'f32,
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53 baseColor * 0.8'f32,
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54 baseColor * 0.8'f32,
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55 ]
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56 keyIndices = [
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57 Escape, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, PrintScreen,
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58 ScrollLock, Pause,
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59
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60 NumberRowExtra1, `1`, `2`, `3`, `4`, `5`, `6`, `7`, `8`, `9`, `0`,
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61
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62 NumberRowExtra2, NumberRowExtra3, Backspace, Insert, Home, PageUp,
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63 Tab, Q, W, Key.E, R, T, Key.Y, U, I, O, P, LetterRow1Extra1,
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64 LetterRow1Extra2, Delete, End, PageDown,
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65
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66 CapsLock, A, S, D, F, G, H, J, K, L, LetterRow2Extra1, LetterRow2Extra2,
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67 LetterRow2Extra3, Enter,
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68
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69 ShiftL, Key.Z, Key.X, C, V, B, N, M, LetterRow3Extra1, LetterRow3Extra2,
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70 LetterRow3Extra3, ShiftR, Up,
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71
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72 CtrlL, SuperL, AltL, Space, AltR, SuperR, CtrlR, Left, Down, Right
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73 ]
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74
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75 var
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76 pipeline: RenderPipeline[VertexDataA, Uniforms]
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77 uniforms: Uniforms
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78 scene: Thing
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79 keyvertexpos: seq[Vec3]
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80 keyvertexcolor: seq[Vec4]
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81 keymeshindices: seq[array[3, uint16]]
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82 rowpos = Vec2([0'f32, 0'f32])
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83 i = 0'u16
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84 firstRow = true
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85 rowWidth = 0'f32
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86 for row in keyrows.fields:
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87 for key in row:
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88 let keySpace = float32(keyDimension * key)
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89 if key > 0:
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90 if keyIndices[i div 4] == Enter:
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91 keyvertexpos.add Vec3([rowpos[0], rowpos[1] - keyDimension - keyGap, 0'f32])
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92 keyvertexpos.add Vec3([rowpos[0] + keySpace, rowpos[1] - keyDimension -
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93 keyGap, 0'f32])
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94 else:
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95 keyvertexpos.add Vec3([rowpos[0], rowpos[1], 0'f32])
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96 keyvertexpos.add Vec3([rowpos[0] + keySpace, rowpos[1], 0'f32])
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97 keyvertexpos.add Vec3([rowpos[0] + keySpace, rowpos[1] + keyDimension, 0'f32])
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98 keyvertexpos.add Vec3([rowpos[0], rowpos[1] + keyDimension, 0'f32])
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99 keyvertexcolor.add [baseColor, baseColor, baseColor, baseColor]
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100 keymeshindices.add [i, i + 1, i + 2]
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101 keymeshindices.add [i + 2, i + 3, i]
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102 rowpos[0] += keySpace + keyGap
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103 i += 4
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104 else:
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105 rowpos[0] += -keySpace + keyGap
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106 if firstRow:
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107 rowWidth = rowpos[0]
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108 rowpos[0] = 0
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109 rowpos[1] += keyDimension + keyGap * (if firstRow: 2'f32 else: 1'f32)
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110 firstRow = false
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112
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113 proc globalUpdate(engine: var Engine, t, dt: float32) =
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114 uniforms.projection.value = ortho[float32](
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115 0'f32, float32(engine.vulkan.frameSize.x),
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116 0'f32, float32(engine.vulkan.frameSize.y),
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117 0'f32, 1'f32,
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118 )
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119 engine.vulkan.device.updateUniformData(pipeline, uniforms)
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120
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121 let
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122 mousePos = translate3d(engine.input.mousePos.x + 20,
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123 engine.input.mousePos.y + 20, 0'f32)
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124 winsize = engine.window.size
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125 center = translate3d(float32(winsize[0]) / 2'f32, float32(winsize[1]) /
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126 2'f32, 0.1'f32)
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127 scene.firstWithName("cursor").transform = mousePos
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128 scene.firstWithName("keyboard-center").transform = center
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129 scene.firstWithName("background").transform = scale3d(float32(winsize[0]),
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130 float32(winsize[1]), 0'f32)
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131 var mesh = Mesh[VertexDataA, uint16](scene.firstWithName("keyboard").parts[0])
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132 var hadUpdate = false
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133 for (index, key) in enumerate(keyIndices):
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134 if key in engine.input.keysPressed:
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135 let baseIndex = index * 4
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136 mesh.vertexData.color.data[baseIndex + 0] = activeColor
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137 mesh.vertexData.color.data[baseIndex + 1] = activeColor
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138 mesh.vertexData.color.data[baseIndex + 2] = activeColor
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139 mesh.vertexData.color.data[baseIndex + 3] = activeColor
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140 hadUpdate = true
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141 if key in engine.input.keysReleased:
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142 let baseIndex = index * 4
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143 mesh.vertexData.color.data[baseIndex + 0] = baseColor
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144 mesh.vertexData.color.data[baseIndex + 1] = baseColor
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145 mesh.vertexData.color.data[baseIndex + 2] = baseColor
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146 mesh.vertexData.color.data[baseIndex + 3] = baseColor
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147 hadUpdate = true
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148 if hadUpdate:
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149 engine.vulkan.device.updateVertexData(mesh.vertexData.color)
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150
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151
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152 when isMainModule:
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153 var myengine = igniteEngine("Input")
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154
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155 # cursor
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156 var cursormesh = new Mesh[VertexDataA, uint16]
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157 cursormesh.vertexData = VertexDataA(
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158 position: PositionAttribute[Vec3](data: arrow, useOnDeviceMemory: true),
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159 color: ColorAttribute[Vec4](data: arrow_colors),
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160 transform: ModelTransformAttribute(data: @[Unit44]),
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161 )
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162 # transform the cursor a bit to make it look nice
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163 let cursorscale = (
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164 scale2d(20'f32, 20'f32) *
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165 translate2d(1'f32, 1'f32) *
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166 rotate2d(-float32(PI) / 4'f32) *
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167 scale2d(0.5'f32, 1'f32) *
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168 rotate2d(float32(PI) / 4'f32)
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169 )
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170 for i in 0 ..< cursormesh.vertexData.position.data.len:
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171 let pos = Vec3([cursormesh.vertexData.position.data[i][0],
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172 cursormesh.vertexData.position.data[i][1], 0'f32])
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173 cursormesh.vertexData.position.data[i] = (cursorscale * pos)
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174
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175 # keyboard
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176 var keyboardmesh = new Mesh[VertexDataA, uint16]
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177 keyboardmesh.indexed = true
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178 keyboardmesh.vertexData = VertexDataA(
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179 position: PositionAttribute[Vec3](data: keyvertexpos,
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180 useOnDeviceMemory: true),
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181 color: ColorAttribute[Vec4](data: keyvertexcolor),
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182 transform: ModelTransformAttribute(data: @[Unit44]),
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183 )
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184 keyboardmesh.indices = keymeshindices
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185
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186 # background
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187 var backgroundmesh = new Mesh[VertexDataA, uint16]
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188 backgroundmesh.indexed = true
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189 backgroundmesh.indices = @[[0'u16, 1'u16, 2'u16], [2'u16, 3'u16, 0'u16]]
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190 backgroundmesh.vertexData = VertexDataA(
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191 position: PositionAttribute[Vec3](data: @[
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192 Vec3([0'f32, 0'f32, 0'f32]),
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193 Vec3([1'f32, 0'f32, 0'f32]),
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194 Vec3([1'f32, 1'f32, 0'f32]),
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195 Vec3([0'f32, 1'f32, 0'f32]),
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196 ], useOnDeviceMemory: true),
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197 color: ColorAttribute[Vec4](data: @[
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198 backgroundColor,
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199 backgroundColor,
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200 backgroundColor,
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201 backgroundColor,
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202 ]),
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203 transform: ModelTransformAttribute(data: @[Unit44]),
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204 )
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205
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206 scene = newThing("scene")
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207 scene.add newThing("background", backgroundmesh)
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208 let keyboard = newThing("keyboard", keyboardmesh)
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209 keyboard.transform = translate3d(-float32(rowWidth) / 2'f32, -float32(
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210 tupleLen(keyRows) * (keyDimension + keyGap) - keyGap) / 2'f32, 0'f32)
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211 scene.add newThing("keyboard-center", keyboard)
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212 scene.add newThing("cursor", cursormesh)
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213
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214 # upload data, prepare shaders, etc
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215 const vertexShader = generateVertexShaderCode[VertexDataA, Uniforms]()
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216 const fragmentShader = generateFragmentShaderCode[VertexDataA]()
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217 pipeline = setupPipeline[VertexDataA, Uniforms, uint16](
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218 myengine,
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219 scene,
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220 vertexShader,
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221 fragmentShader
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222 )
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223 # show something
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224 myengine.run(pipeline, globalUpdate)
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225 pipeline.trash()
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226 myengine.trash()