Mercurial > games > semicongine
annotate examples/E04_input.nim @ 527:de433a47e635
add: nicer keyboard demo
| author | Sam <sam@basx.dev> |
|---|---|
| date | Sun, 05 Feb 2023 00:15:48 +0700 |
| parents | 0285ff2281b1 |
| children | 3ec1be39e1ad |
| rev | line source |
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| 525 | 1 import std/tables |
| 527 | 2 import std/enumerate |
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3 import std/strutils |
| 525 | 4 import std/typetraits |
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5 import std/times |
| 525 | 6 import std/math |
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7 |
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8 import semicongine |
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9 |
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10 type |
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11 # define type of vertex |
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12 VertexDataA = object |
| 525 | 13 position: PositionAttribute[Vec3] |
| 14 color: ColorAttribute[Vec4] | |
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15 transform: ModelTransformAttribute |
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16 Uniforms = object |
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17 projection: Descriptor[Mat44] |
| 525 | 18 |
| 19 const | |
| 20 arrow = @[ | |
| 21 Vec3([-1'f32, -1'f32, 0'f32]), | |
| 22 Vec3([1'f32, -1'f32, 0'f32]), | |
| 23 Vec3([-0.3'f32, -0.3'f32, 0'f32]), | |
| 24 Vec3([-0.3'f32, -0.3'f32, 0'f32]), | |
| 25 Vec3([-1'f32, 1'f32, 0'f32]), | |
| 26 Vec3([-1'f32, -1'f32, 0'f32]), | |
| 27 ] | |
| 28 arrow_colors = @[ | |
| 29 Vec4([1'f32, 0'f32, 0'f32, 1'f32]), | |
| 30 Vec4([1'f32, 0'f32, 0'f32, 1'f32]), | |
| 31 Vec4([1'f32, 0'f32, 0'f32, 1'f32]), | |
| 32 Vec4([0.8'f32, 0'f32, 0'f32, 1'f32]), | |
| 33 Vec4([0.8'f32, 0'f32, 0'f32, 1'f32]), | |
| 34 Vec4([0.8'f32, 0'f32, 0'f32, 1'f32]), | |
| 35 ] | |
| 527 | 36 # keyboard layout, specifying rows with key widths, negative numbers are empty spaces |
| 525 | 37 keyrows = ( |
| 527 | 38 [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, |
| 39 1.0, 1.0, -0.1, 1.0, 1.0, 1.0], | |
| 40 [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, | |
| 41 1.0, 1.0, 1.0], | |
| 42 [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, | |
| 43 1.0, 1.0], | |
| 44 [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], | |
| 45 [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], | |
| 46 [1.5, 1.5, 1.5, 6, 1.5, 1.5, -1.2, 1.5, -0.1, 1.0, 1.0, 1.0], | |
| 525 | 47 ) |
| 527 | 48 keyDimension = 50'f32 |
| 525 | 49 keyGap = 10'f32 |
| 50 baseColor = Vec4([1'f32, 0'f32, 0'f32, 0'f32]) | |
| 51 activeColor = Vec4([1'f32, 1'f32, 1'f32, 0'f32]) | |
| 527 | 52 keyIndices = [ |
| 53 Escape, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, PrintScreen, | |
| 54 ScrollLock, Pause, | |
| 55 | |
| 56 NumberRowExtra1, `1`, `2`, `3`, `4`, `5`, `6`, `7`, `8`, `9`, `0`, | |
| 57 | |
| 58 NumberRowExtra2, NumberRowExtra3, Backspace, Insert, Home, PageUp, | |
| 59 Tab, Q, W, Key.E, R, T, Key.Y, U, I, O, P, LetterRow1Extra1, | |
| 60 LetterRow1Extra2, Delete, End, PageDown, | |
| 61 | |
| 62 CapsLock, A, S, D, F, G, H, J, K, L, LetterRow2Extra1, LetterRow2Extra2, | |
| 63 LetterRow2Extra3, Enter, | |
| 64 | |
| 65 ShiftL, Key.Z, Key.X, C, V, B, N, M, LetterRow3Extra1, LetterRow3Extra2, | |
| 66 LetterRow3Extra3, ShiftR, Up, | |
| 67 | |
| 68 CtrlL, SuperL, AltL, Space, AltR, SuperR, CtrlR, Left, Down, Right | |
| 69 ] | |
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70 |
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71 var |
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72 pipeline: RenderPipeline[VertexDataA, Uniforms] |
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73 uniforms: Uniforms |
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74 scene: Thing |
| 525 | 75 keyvertexpos: seq[Vec3] |
| 76 keyvertexcolor: seq[Vec4] | |
| 527 | 77 keymeshindices: seq[array[3, uint16]] |
| 525 | 78 rowpos = Vec2([0'f32, 0'f32]) |
| 79 i = 0'u16 | |
| 527 | 80 firstRow = true |
| 81 rowWidth = 0'f32 | |
| 525 | 82 for row in keyrows.fields: |
| 83 for key in row: | |
| 527 | 84 let keySpace = float32(keyDimension * key) |
| 85 if key > 0: | |
| 86 if keyIndices[i div 4] == Enter: | |
| 87 keyvertexpos.add Vec3([rowpos[0], rowpos[1] - keyDimension - keyGap, 0'f32]) | |
| 88 keyvertexpos.add Vec3([rowpos[0] + keySpace, rowpos[1] - keyDimension - | |
| 89 keyGap, 0'f32]) | |
| 90 else: | |
| 91 keyvertexpos.add Vec3([rowpos[0], rowpos[1], 0'f32]) | |
| 92 keyvertexpos.add Vec3([rowpos[0] + keySpace, rowpos[1], 0'f32]) | |
| 93 keyvertexpos.add Vec3([rowpos[0] + keySpace, rowpos[1] + keyDimension, 0'f32]) | |
| 94 keyvertexpos.add Vec3([rowpos[0], rowpos[1] + keyDimension, 0'f32]) | |
| 95 keyvertexcolor.add [baseColor, baseColor, baseColor, baseColor] | |
| 96 keymeshindices.add [i, i + 1, i + 2] | |
| 97 keymeshindices.add [i + 2, i + 3, i] | |
| 98 rowpos[0] += keySpace + keyGap | |
| 99 i += 4 | |
| 100 else: | |
| 101 rowpos[0] += -keySpace + keyGap | |
| 102 if firstRow: | |
| 103 rowWidth = rowpos[0] | |
| 525 | 104 rowpos[0] = 0 |
| 527 | 105 rowpos[1] += keyDimension + keyGap * (if firstRow: 2'f32 else: 1'f32) |
| 106 firstRow = false | |
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107 |
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108 |
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109 proc globalUpdate(engine: var Engine, dt: float32) = |
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110 uniforms.projection.value = ortho[float32]( |
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111 0'f32, float32(engine.vulkan.frameSize.x), |
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112 0'f32, float32(engine.vulkan.frameSize.y), |
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113 0'f32, 1'f32, |
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114 ) |
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115 engine.vulkan.device.updateUniformData(pipeline, uniforms) |
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116 |
| 525 | 117 let |
| 118 mousePos = translate3d(engine.input.mousePos.x, engine.input.mousePos.y, 0'f32) | |
| 119 winsize = engine.window.size | |
| 120 center = translate3d(float32(winsize[0]) / 2'f32, float32(winsize[1]) / | |
| 121 2'f32, 0.1'f32) | |
| 122 scene.firstWithName("cursor").transform = mousePos | |
| 123 scene.firstWithName("keyboard-center").transform = center | |
| 527 | 124 scene.firstWithName("background").transform = scale3d(float32(winsize[0]), |
| 125 float32(winsize[1]), 0'f32) | |
| 525 | 126 var mesh = Mesh[VertexDataA, uint16](scene.firstWithName("keyboard").parts[0]) |
| 127 var hadUpdate = false | |
| 527 | 128 for (index, key) in enumerate(keyIndices): |
| 525 | 129 if key in engine.input.keysPressed: |
| 130 let baseIndex = index * 4 | |
| 131 mesh.vertexData.color.data[baseIndex + 0] = activeColor | |
| 132 mesh.vertexData.color.data[baseIndex + 1] = activeColor | |
| 133 mesh.vertexData.color.data[baseIndex + 2] = activeColor | |
| 134 mesh.vertexData.color.data[baseIndex + 3] = activeColor | |
| 135 hadUpdate = true | |
| 136 if key in engine.input.keysReleased: | |
| 137 let baseIndex = index * 4 | |
| 138 mesh.vertexData.color.data[baseIndex + 0] = baseColor | |
| 139 mesh.vertexData.color.data[baseIndex + 1] = baseColor | |
| 140 mesh.vertexData.color.data[baseIndex + 2] = baseColor | |
| 141 mesh.vertexData.color.data[baseIndex + 3] = baseColor | |
| 142 hadUpdate = true | |
| 143 if hadUpdate: | |
| 144 engine.vulkan.device.updateVertexData(mesh.vertexData.color) | |
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145 |
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146 |
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147 when isMainModule: |
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148 var myengine = igniteEngine("Input") |
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149 |
| 527 | 150 # cursor |
| 525 | 151 var cursormesh = new Mesh[VertexDataA, uint16] |
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152 cursormesh.vertexData = VertexDataA( |
| 525 | 153 position: PositionAttribute[Vec3](data: arrow, useOnDeviceMemory: true), |
| 154 color: ColorAttribute[Vec4](data: arrow_colors), | |
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155 transform: ModelTransformAttribute(data: @[Unit44]), |
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156 ) |
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157 # transform the cursor a bit to make it look nice |
| 525 | 158 let cursorscale = ( |
| 159 scale2d(20'f32, 20'f32) * | |
| 160 translate2d(1'f32, 1'f32) * | |
| 161 rotate2d(-float32(PI) / 4'f32) * | |
| 162 scale2d(0.5'f32, 1'f32) * | |
| 163 rotate2d(float32(PI) / 4'f32) | |
| 164 ) | |
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165 for i in 0 ..< cursormesh.vertexData.position.data.len: |
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166 let pos = Vec3([cursormesh.vertexData.position.data[i][0], |
| 525 | 167 cursormesh.vertexData.position.data[i][1], 0'f32]) |
| 168 cursormesh.vertexData.position.data[i] = (cursorscale * pos) | |
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169 |
| 527 | 170 # keyboard |
| 525 | 171 var keyboardmesh = new Mesh[VertexDataA, uint16] |
| 172 keyboardmesh.indexed = true | |
| 173 keyboardmesh.vertexData = VertexDataA( | |
| 174 position: PositionAttribute[Vec3](data: keyvertexpos, | |
| 175 useOnDeviceMemory: true), | |
| 176 color: ColorAttribute[Vec4](data: keyvertexcolor), | |
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177 transform: ModelTransformAttribute(data: @[Unit44]), |
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178 ) |
| 527 | 179 keyboardmesh.indices = keymeshindices |
| 180 | |
| 181 # background | |
| 182 var backgroundmesh = new Mesh[VertexDataA, uint16] | |
| 183 backgroundmesh.indexed = true | |
| 184 backgroundmesh.indices = @[[0'u16, 1'u16, 2'u16], [2'u16, 3'u16, 0'u16]] | |
| 185 backgroundmesh.vertexData = VertexDataA( | |
| 186 position: PositionAttribute[Vec3](data: @[ | |
| 187 Vec3([0'f32, 0'f32, 0'f32]), | |
| 188 Vec3([1'f32, 0'f32, 0'f32]), | |
| 189 Vec3([1'f32, 1'f32, 0'f32]), | |
| 190 Vec3([0'f32, 1'f32, 0'f32]), | |
| 191 ], useOnDeviceMemory: true), | |
| 192 color: ColorAttribute[Vec4](data: @[ | |
| 193 baseColor * 0.5'f32, | |
| 194 baseColor * 0.5'f32, | |
| 195 baseColor * 0.5'f32, | |
| 196 baseColor * 0.5'f32, | |
| 197 ]), | |
| 198 transform: ModelTransformAttribute(data: @[Unit44]), | |
| 199 ) | |
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200 |
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201 scene = newThing("scene") |
| 527 | 202 scene.add newThing("background", backgroundmesh) |
| 525 | 203 let keyboard = newThing("keyboard", keyboardmesh) |
| 204 keyboard.transform = translate3d(-float32(rowWidth) / 2'f32, -float32( | |
| 527 | 205 tupleLen(keyRows) * (keyDimension + keyGap) - keyGap) / 2'f32, 0'f32) |
| 525 | 206 scene.add newThing("keyboard-center", keyboard) |
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207 scene.add newThing("cursor", cursormesh) |
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208 |
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209 # upload data, prepare shaders, etc |
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210 const vertexShader = generateVertexShaderCode[VertexDataA, Uniforms](""" |
| 525 | 211 out_position = uniforms.projection * transform * vec4(position, 1); |
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212 """) |
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213 const fragmentShader = generateFragmentShaderCode[VertexDataA]() |
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214 pipeline = setupPipeline[VertexDataA, Uniforms, uint16]( |
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215 myengine, |
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216 scene, |
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217 vertexShader, |
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218 fragmentShader |
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219 ) |
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220 # show something |
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221 myengine.run(pipeline, globalUpdate) |
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222 pipeline.trash() |
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223 myengine.trash() |