Mercurial > games > semicongine
annotate examples/E04_input.nim @ 67:31ccaeee09c9
add: nicer keyboard demo
| author | Sam <sam@basx.dev> |
|---|---|
| date | Sun, 05 Feb 2023 00:20:07 +0700 |
| parents | 44bae6c72834 |
| children | d830a1c0f86e |
| rev | line source |
|---|---|
| 64 | 1 import std/tables |
| 66 | 2 import std/enumerate |
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3 import std/strutils |
| 64 | 4 import std/typetraits |
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5 import std/times |
| 64 | 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 |
| 64 | 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] |
| 64 | 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 ] | |
| 66 | 36 # keyboard layout, specifying rows with key widths, negative numbers are empty spaces |
| 64 | 37 keyrows = ( |
| 66 | 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], | |
| 64 | 47 ) |
| 66 | 48 keyDimension = 50'f32 |
| 64 | 49 keyGap = 10'f32 |
| 67 | 50 backgroundColor = Vec4([1'f32, 0.3'f32, 0.3'f32, 0'f32]) |
| 64 | 51 baseColor = Vec4([1'f32, 0'f32, 0'f32, 0'f32]) |
| 52 activeColor = Vec4([1'f32, 1'f32, 1'f32, 0'f32]) | |
| 66 | 53 keyIndices = [ |
| 54 Escape, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, PrintScreen, | |
| 55 ScrollLock, Pause, | |
| 56 | |
| 57 NumberRowExtra1, `1`, `2`, `3`, `4`, `5`, `6`, `7`, `8`, `9`, `0`, | |
| 58 | |
| 59 NumberRowExtra2, NumberRowExtra3, Backspace, Insert, Home, PageUp, | |
| 60 Tab, Q, W, Key.E, R, T, Key.Y, U, I, O, P, LetterRow1Extra1, | |
| 61 LetterRow1Extra2, Delete, End, PageDown, | |
| 62 | |
| 63 CapsLock, A, S, D, F, G, H, J, K, L, LetterRow2Extra1, LetterRow2Extra2, | |
| 64 LetterRow2Extra3, Enter, | |
| 65 | |
| 66 ShiftL, Key.Z, Key.X, C, V, B, N, M, LetterRow3Extra1, LetterRow3Extra2, | |
| 67 LetterRow3Extra3, ShiftR, Up, | |
| 68 | |
| 69 CtrlL, SuperL, AltL, Space, AltR, SuperR, CtrlR, Left, Down, Right | |
| 70 ] | |
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71 |
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72 var |
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73 pipeline: RenderPipeline[VertexDataA, Uniforms] |
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74 uniforms: Uniforms |
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75 scene: Thing |
| 64 | 76 keyvertexpos: seq[Vec3] |
| 77 keyvertexcolor: seq[Vec4] | |
| 66 | 78 keymeshindices: seq[array[3, uint16]] |
| 64 | 79 rowpos = Vec2([0'f32, 0'f32]) |
| 80 i = 0'u16 | |
| 66 | 81 firstRow = true |
| 82 rowWidth = 0'f32 | |
| 64 | 83 for row in keyrows.fields: |
| 84 for key in row: | |
| 66 | 85 let keySpace = float32(keyDimension * key) |
| 86 if key > 0: | |
| 87 if keyIndices[i div 4] == Enter: | |
| 88 keyvertexpos.add Vec3([rowpos[0], rowpos[1] - keyDimension - keyGap, 0'f32]) | |
| 89 keyvertexpos.add Vec3([rowpos[0] + keySpace, rowpos[1] - keyDimension - | |
| 90 keyGap, 0'f32]) | |
| 91 else: | |
| 92 keyvertexpos.add Vec3([rowpos[0], rowpos[1], 0'f32]) | |
| 93 keyvertexpos.add Vec3([rowpos[0] + keySpace, rowpos[1], 0'f32]) | |
| 94 keyvertexpos.add Vec3([rowpos[0] + keySpace, rowpos[1] + keyDimension, 0'f32]) | |
| 95 keyvertexpos.add Vec3([rowpos[0], rowpos[1] + keyDimension, 0'f32]) | |
| 96 keyvertexcolor.add [baseColor, baseColor, baseColor, baseColor] | |
| 97 keymeshindices.add [i, i + 1, i + 2] | |
| 98 keymeshindices.add [i + 2, i + 3, i] | |
| 99 rowpos[0] += keySpace + keyGap | |
| 100 i += 4 | |
| 101 else: | |
| 102 rowpos[0] += -keySpace + keyGap | |
| 103 if firstRow: | |
| 104 rowWidth = rowpos[0] | |
| 64 | 105 rowpos[0] = 0 |
| 66 | 106 rowpos[1] += keyDimension + keyGap * (if firstRow: 2'f32 else: 1'f32) |
| 107 firstRow = false | |
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108 |
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109 |
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110 proc globalUpdate(engine: var Engine, dt: float32) = |
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111 uniforms.projection.value = ortho[float32]( |
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112 0'f32, float32(engine.vulkan.frameSize.x), |
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113 0'f32, float32(engine.vulkan.frameSize.y), |
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114 0'f32, 1'f32, |
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115 ) |
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116 engine.vulkan.device.updateUniformData(pipeline, uniforms) |
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117 |
| 64 | 118 let |
| 119 mousePos = translate3d(engine.input.mousePos.x, engine.input.mousePos.y, 0'f32) | |
| 120 winsize = engine.window.size | |
| 121 center = translate3d(float32(winsize[0]) / 2'f32, float32(winsize[1]) / | |
| 122 2'f32, 0.1'f32) | |
| 123 scene.firstWithName("cursor").transform = mousePos | |
| 124 scene.firstWithName("keyboard-center").transform = center | |
| 66 | 125 scene.firstWithName("background").transform = scale3d(float32(winsize[0]), |
| 126 float32(winsize[1]), 0'f32) | |
| 64 | 127 var mesh = Mesh[VertexDataA, uint16](scene.firstWithName("keyboard").parts[0]) |
| 128 var hadUpdate = false | |
| 66 | 129 for (index, key) in enumerate(keyIndices): |
| 64 | 130 if key in engine.input.keysPressed: |
| 131 let baseIndex = index * 4 | |
| 132 mesh.vertexData.color.data[baseIndex + 0] = activeColor | |
| 133 mesh.vertexData.color.data[baseIndex + 1] = activeColor | |
| 134 mesh.vertexData.color.data[baseIndex + 2] = activeColor | |
| 135 mesh.vertexData.color.data[baseIndex + 3] = activeColor | |
| 136 hadUpdate = true | |
| 137 if key in engine.input.keysReleased: | |
| 138 let baseIndex = index * 4 | |
| 139 mesh.vertexData.color.data[baseIndex + 0] = baseColor | |
| 140 mesh.vertexData.color.data[baseIndex + 1] = baseColor | |
| 141 mesh.vertexData.color.data[baseIndex + 2] = baseColor | |
| 142 mesh.vertexData.color.data[baseIndex + 3] = baseColor | |
| 143 hadUpdate = true | |
| 144 if hadUpdate: | |
| 145 engine.vulkan.device.updateVertexData(mesh.vertexData.color) | |
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146 |
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147 |
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148 when isMainModule: |
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149 var myengine = igniteEngine("Input") |
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150 |
| 66 | 151 # cursor |
| 64 | 152 var cursormesh = new Mesh[VertexDataA, uint16] |
| 57 | 153 cursormesh.vertexData = VertexDataA( |
| 64 | 154 position: PositionAttribute[Vec3](data: arrow, useOnDeviceMemory: true), |
| 155 color: ColorAttribute[Vec4](data: arrow_colors), | |
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156 transform: ModelTransformAttribute(data: @[Unit44]), |
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157 ) |
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158 # transform the cursor a bit to make it look nice |
| 64 | 159 let cursorscale = ( |
| 160 scale2d(20'f32, 20'f32) * | |
| 161 translate2d(1'f32, 1'f32) * | |
| 162 rotate2d(-float32(PI) / 4'f32) * | |
| 163 scale2d(0.5'f32, 1'f32) * | |
| 164 rotate2d(float32(PI) / 4'f32) | |
| 165 ) | |
| 57 | 166 for i in 0 ..< cursormesh.vertexData.position.data.len: |
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167 let pos = Vec3([cursormesh.vertexData.position.data[i][0], |
| 64 | 168 cursormesh.vertexData.position.data[i][1], 0'f32]) |
| 169 cursormesh.vertexData.position.data[i] = (cursorscale * pos) | |
| 57 | 170 |
| 66 | 171 # keyboard |
| 64 | 172 var keyboardmesh = new Mesh[VertexDataA, uint16] |
| 173 keyboardmesh.indexed = true | |
| 174 keyboardmesh.vertexData = VertexDataA( | |
| 175 position: PositionAttribute[Vec3](data: keyvertexpos, | |
| 176 useOnDeviceMemory: true), | |
| 177 color: ColorAttribute[Vec4](data: keyvertexcolor), | |
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178 transform: ModelTransformAttribute(data: @[Unit44]), |
| 57 | 179 ) |
| 66 | 180 keyboardmesh.indices = keymeshindices |
| 181 | |
| 182 # background | |
| 183 var backgroundmesh = new Mesh[VertexDataA, uint16] | |
| 184 backgroundmesh.indexed = true | |
| 185 backgroundmesh.indices = @[[0'u16, 1'u16, 2'u16], [2'u16, 3'u16, 0'u16]] | |
| 186 backgroundmesh.vertexData = VertexDataA( | |
| 187 position: PositionAttribute[Vec3](data: @[ | |
| 188 Vec3([0'f32, 0'f32, 0'f32]), | |
| 189 Vec3([1'f32, 0'f32, 0'f32]), | |
| 190 Vec3([1'f32, 1'f32, 0'f32]), | |
| 191 Vec3([0'f32, 1'f32, 0'f32]), | |
| 192 ], useOnDeviceMemory: true), | |
| 193 color: ColorAttribute[Vec4](data: @[ | |
| 67 | 194 backgroundColor, |
| 195 backgroundColor, | |
| 196 backgroundColor, | |
| 197 backgroundColor, | |
| 66 | 198 ]), |
| 199 transform: ModelTransformAttribute(data: @[Unit44]), | |
| 200 ) | |
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201 |
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202 scene = newThing("scene") |
| 66 | 203 scene.add newThing("background", backgroundmesh) |
| 64 | 204 let keyboard = newThing("keyboard", keyboardmesh) |
| 205 keyboard.transform = translate3d(-float32(rowWidth) / 2'f32, -float32( | |
| 66 | 206 tupleLen(keyRows) * (keyDimension + keyGap) - keyGap) / 2'f32, 0'f32) |
| 64 | 207 scene.add newThing("keyboard-center", keyboard) |
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208 scene.add newThing("cursor", cursormesh) |
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209 |
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210 # upload data, prepare shaders, etc |
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211 const vertexShader = generateVertexShaderCode[VertexDataA, Uniforms](""" |
| 64 | 212 out_position = uniforms.projection * transform * vec4(position, 1); |
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213 """) |
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214 const fragmentShader = generateFragmentShaderCode[VertexDataA]() |
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215 pipeline = setupPipeline[VertexDataA, Uniforms, uint16]( |
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216 myengine, |
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217 scene, |
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218 vertexShader, |
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219 fragmentShader |
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220 ) |
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221 # show something |
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222 myengine.run(pipeline, globalUpdate) |
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223 pipeline.trash() |
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224 myengine.trash() |