Mercurial > games > semicongine
annotate examples/E04_input.nim @ 284:330e91ebd525
add: collision calculations
| author | Sam <sam@basx.dev> |
|---|---|
| date | Mon, 05 Jun 2023 23:57:16 +0700 |
| parents | 95281f2db400 |
| children | da0bd61abe91 |
| rev | line source |
|---|---|
| 66 | 1 import std/enumerate |
| 64 | 2 import std/typetraits |
| 3 import std/math | |
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4 |
| 271 | 5 import ../src/semicongine |
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6 |
| 64 | 7 const |
| 8 arrow = @[ | |
| 143 | 9 newVec3f(-1, -1), |
| 10 newVec3f(1, -1), | |
| 11 newVec3f(-0.3, -0.3), | |
| 12 newVec3f(-0.3, -0.3), | |
| 13 newVec3f(-1, 1), | |
| 14 newVec3f(-1, -1), | |
| 64 | 15 ] |
| 66 | 16 # keyboard layout, specifying rows with key widths, negative numbers are empty spaces |
| 64 | 17 keyrows = ( |
| 143 | 18 [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, 1.0, 1.0, -0.1, 1.0, 1.0, 1.0], |
| 19 [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, 1.0, 1.0, 1.0], | |
| 20 [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, 1.0, 1.0], | |
| 66 | 21 [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], |
| 22 [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], | |
| 23 [1.5, 1.5, 1.5, 6, 1.5, 1.5, -1.2, 1.5, -0.1, 1.0, 1.0, 1.0], | |
| 64 | 24 ) |
| 66 | 25 keyDimension = 50'f32 |
| 64 | 26 keyGap = 10'f32 |
| 210 | 27 backgroundColor = newVec4f(0.6705882352941176, 0.6078431372549019, 0.5882352941176471, 1) |
| 28 baseColor = newVec4f(0.9411764705882353, 0.9058823529411765, 0.8470588235294118, 1) | |
| 29 activeColor = newVec4f(0.6509803921568628, 0.22745098039215686, 0.3137254901960784, 1) | |
| 69 | 30 arrow_colors = @[ |
| 31 baseColor * 0.9'f32, | |
| 32 baseColor * 0.9'f32, | |
| 33 baseColor * 0.9'f32, | |
| 34 baseColor * 0.8'f32, | |
| 35 baseColor * 0.8'f32, | |
| 36 baseColor * 0.8'f32, | |
| 37 ] | |
| 66 | 38 keyIndices = [ |
| 39 Escape, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, PrintScreen, | |
| 40 ScrollLock, Pause, | |
| 41 | |
| 42 NumberRowExtra1, `1`, `2`, `3`, `4`, `5`, `6`, `7`, `8`, `9`, `0`, | |
| 43 | |
| 44 NumberRowExtra2, NumberRowExtra3, Backspace, Insert, Home, PageUp, | |
| 45 Tab, Q, W, Key.E, R, T, Key.Y, U, I, O, P, LetterRow1Extra1, | |
| 46 LetterRow1Extra2, Delete, End, PageDown, | |
| 47 | |
| 48 CapsLock, A, S, D, F, G, H, J, K, L, LetterRow2Extra1, LetterRow2Extra2, | |
| 49 LetterRow2Extra3, Enter, | |
| 50 | |
| 51 ShiftL, Key.Z, Key.X, C, V, B, N, M, LetterRow3Extra1, LetterRow3Extra2, | |
| 52 LetterRow3Extra3, ShiftR, Up, | |
| 53 | |
| 54 CtrlL, SuperL, AltL, Space, AltR, SuperR, CtrlR, Left, Down, Right | |
| 55 ] | |
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56 |
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57 # build keyboard and cursor meshes |
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58 var |
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59 scene: Scene |
| 143 | 60 keyvertexpos: seq[Vec3f] |
| 210 | 61 keyvertexcolor: seq[Vec4f] |
| 66 | 62 keymeshindices: seq[array[3, uint16]] |
| 143 | 63 rowpos = newVec2f(0, 0) |
| 64 | 64 i = 0'u16 |
| 66 | 65 firstRow = true |
| 66 rowWidth = 0'f32 | |
| 64 | 67 for row in keyrows.fields: |
| 68 for key in row: | |
| 66 | 69 let keySpace = float32(keyDimension * key) |
| 70 if key > 0: | |
| 71 if keyIndices[i div 4] == Enter: | |
| 143 | 72 keyvertexpos.add newVec3f(rowpos[0], rowpos[1] - keyDimension - keyGap) |
| 73 keyvertexpos.add newVec3f(rowpos[0] + keySpace, rowpos[1] - keyDimension - keyGap) | |
| 66 | 74 else: |
| 143 | 75 keyvertexpos.add newVec3f(rowpos[0], rowpos[1]) |
| 76 keyvertexpos.add newVec3f(rowpos[0] + keySpace, rowpos[1]) | |
| 77 keyvertexpos.add newVec3f(rowpos[0] + keySpace, rowpos[1] + keyDimension) | |
| 78 keyvertexpos.add newVec3f(rowpos[0], rowpos[1] + keyDimension) | |
| 66 | 79 keyvertexcolor.add [baseColor, baseColor, baseColor, baseColor] |
| 80 keymeshindices.add [i, i + 1, i + 2] | |
| 81 keymeshindices.add [i + 2, i + 3, i] | |
| 82 rowpos[0] += keySpace + keyGap | |
| 83 i += 4 | |
| 84 else: | |
| 85 rowpos[0] += -keySpace + keyGap | |
| 86 if firstRow: | |
| 87 rowWidth = rowpos[0] | |
| 64 | 88 rowpos[0] = 0 |
| 66 | 89 rowpos[1] += keyDimension + keyGap * (if firstRow: 2'f32 else: 1'f32) |
| 90 firstRow = false | |
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91 |
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92 |
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93 when isMainModule: |
| 143 | 94 var myengine = initEngine("Input") |
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95 |
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96 # transform the cursor a bit to make it look nice |
| 64 | 97 let cursorscale = ( |
| 98 scale2d(20'f32, 20'f32) * | |
| 99 translate2d(1'f32, 1'f32) * | |
| 100 rotate2d(-float32(PI) / 4'f32) * | |
| 101 scale2d(0.5'f32, 1'f32) * | |
| 102 rotate2d(float32(PI) / 4'f32) | |
| 103 ) | |
| 143 | 104 var positions = arrow |
| 105 for i in 0 ..< positions.len: | |
| 106 positions[i] = cursorscale * newVec3f(positions[i].x, positions[i].y) | |
| 57 | 107 |
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108 # define mesh objects |
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109 var |
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110 cursormesh = newMesh( |
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111 positions=positions, |
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112 colors=arrow_colors, |
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113 instanceCount=1, |
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114 ) |
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115 keyboardmesh = newMesh( |
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116 positions=keyvertexpos, |
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117 colors=keyvertexcolor, |
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118 indices=keymeshindices |
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119 ) |
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120 backgroundmesh = newMesh( |
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121 positions= @[ |
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122 newVec3f(0'f32, 0'f32), |
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123 newVec3f(1'f32, 0'f32), |
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124 newVec3f(1'f32, 1'f32), |
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125 newVec3f(0'f32, 1'f32), |
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126 ], |
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127 colors= @[ |
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128 backgroundColor, |
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129 backgroundColor, |
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130 backgroundColor, |
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131 backgroundColor, |
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132 ], |
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133 indices= @[[0'u16, 1'u16, 2'u16], [2'u16, 3'u16, 0'u16]], |
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134 ) |
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135 |
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136 # define mesh objects |
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137 scene = newScene("scene", newEntity("scene")) |
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138 scene.root.add newEntity("background", backgroundmesh) |
| 143 | 139 let keyboard = newEntity("keyboard", keyboardmesh) |
| 140 keyboard.transform = translate3d( | |
| 141 -float32(rowWidth) / 2'f32, | |
| 142 -float32(tupleLen(keyRows) * (keyDimension + keyGap) - keyGap) / 2'f32, | |
| 143 0'f32 | |
| 144 ) | |
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145 scene.root.add newEntity("keyboard-center", keyboard) |
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146 scene.root.add newEntity("cursor", cursormesh) |
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147 |
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148 # shaders |
| 143 | 149 const |
| 150 vertexInput = @[ | |
| 163 | 151 attr[Vec3f]("position"), |
| 210 | 152 attr[Vec4f]("color", memoryPerformanceHint=PreferFastWrite), |
| 163 | 153 attr[Mat4]("transform", memoryPerformanceHint=PreferFastWrite, perInstance=true), |
| 143 | 154 ] |
| 210 | 155 vertexOutput = @[attr[Vec4f]("outcolor")] |
| 143 | 156 uniforms = @[attr[Mat4]("projection")] |
| 157 fragOutput = @[attr[Vec4f]("color")] | |
| 158 vertexCode = compileGlslShader( | |
| 159 stage=VK_SHADER_STAGE_VERTEX_BIT, | |
| 160 inputs=vertexInput, | |
| 161 uniforms=uniforms, | |
| 162 outputs=vertexOutput, | |
| 163 main="""outcolor = color; gl_Position = vec4(position, 1) * (transform * Uniforms.projection);""" | |
| 164 ) | |
| 165 fragmentCode = compileGlslShader( | |
| 166 stage=VK_SHADER_STAGE_FRAGMENT_BIT, | |
| 167 inputs=vertexOutput, | |
| 168 uniforms=uniforms, | |
| 169 outputs=fragOutput, | |
| 210 | 170 main="color = outcolor;" |
| 143 | 171 ) |
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172 |
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173 # set up rendering |
| 143 | 174 myengine.setRenderer(myengine.gpuDevice.simpleForwardRenderPass(vertexCode, fragmentCode, clearColor=newVec4f(0, 0, 0.5))) |
| 253 | 175 myengine.addScene(scene, vertexInput, @[], transformAttribute="transform") |
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176 scene.addShaderGlobal("projection", Unit4f32) |
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177 |
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178 # mainloop |
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179 while myengine.updateInputs() == Running: |
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180 if myengine.windowWasResized(): |
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181 setShaderGlobal(scene, "projection", |
| 247 | 182 ortho( |
| 183 0, float32(myengine.getWindow().size[0]), | |
| 184 0, float32(myengine.getWindow().size[1]), | |
| 185 0, 1, | |
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186 ) |
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187 ) |
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188 let |
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189 winsize = myengine.getWindow().size |
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190 center = translate3d(float32(winsize[0]) / 2'f32, float32(winsize[1]) / 2'f32, 0.1'f32) |
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191 scene.root.firstWithName("keyboard-center").transform = center |
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192 scene.root.firstWithName("background").transform = scale3d(float32(winsize[0]), float32(winsize[1]), 1'f32) |
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193 |
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194 let mousePos = translate3d(myengine.mousePosition().x + 20, myengine.mousePosition().y + 20, 0'f32) |
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195 scene.root.firstWithName("cursor").transform = mousePos |
| 143 | 196 |
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197 var mesh = Mesh(scene.root.firstWithName("keyboard").components[0]) |
| 143 | 198 for (index, key) in enumerate(keyIndices): |
| 199 if myengine.keyWasPressed(key): | |
| 200 let baseIndex = uint32(index * 4) | |
| 201 mesh.updateMeshData("color", baseIndex + 0, activeColor) | |
| 202 mesh.updateMeshData("color", baseIndex + 1, activeColor) | |
| 203 mesh.updateMeshData("color", baseIndex + 2, activeColor) | |
| 204 mesh.updateMeshData("color", baseIndex + 3, activeColor) | |
| 205 if myengine.keyWasReleased(key): | |
| 206 let baseIndex = uint32(index * 4) | |
| 207 mesh.updateMeshData("color", baseIndex + 0, baseColor) | |
| 208 mesh.updateMeshData("color", baseIndex + 1, baseColor) | |
| 209 mesh.updateMeshData("color", baseIndex + 2, baseColor) | |
| 210 mesh.updateMeshData("color", baseIndex + 3, baseColor) | |
| 211 | |
| 212 myengine.renderScene(scene) | |
| 213 | |
| 214 myengine.destroy() |