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annotate tests/test_font.nim @ 415:25db1fa56cb7

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add: font/text improvments, support for newline rendering
author Sam <sam@basx.dev>
date Sat, 27 Jan 2024 00:31:11 +0700
parents 8fb4387b2ea1
children 73cca428e27a
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1 import std/unicode
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2
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3 import semicongine
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4
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5 proc main() =
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6 # setup engine
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7 var engine = initEngine("Test fonts")
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8 engine.initRenderer([])
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9
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10 # build scene
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11 var scene = Scene(name: "main")
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12 # var font = loadFont("DejaVuSans.ttf", lineHeightPixels=90'f32, charset="abcdefghijklmnopqrstuvwxyz ".toRunes)
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13 var font = loadFont("DejaVuSans.ttf", lineHeightPixels=180'f32)
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14 var textbox = initText(32, font, "", color=newVec4f(1, 0, 0, 1))
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15 let fontscale = 0.002
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16 scene.add textbox
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17 textbox.mesh.transform = scale(fontscale, fontscale)
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18 engine.loadScene(scene)
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19
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20 while engine.updateInputs() == Running and not engine.keyIsDown(Escape):
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21 if engine.windowWasResized():
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22 var winSize = engine.getWindow().size
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23 textbox.mesh.transform = scale(fontscale * (winSize[1] / winSize[0]), fontscale)
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24 for c in [Key.A, Key.B, Key.C, Key.D, Key.E, Key.F, Key.G, Key.H, Key.I, Key.J, Key.K, Key.L, Key.M, Key.N, Key.O, Key.P, Key.Q, Key.R, Key.S, Key.T, Key.U, Key.V, Key.W, Key.X, Key.Y, Key.Z]:
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25 if engine.keyWasPressed(c):
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26 if engine.keyIsDown(ShiftL) or engine.keyIsDown(ShiftR):
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27 textbox.text = textbox.text & ($c).toRunes
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28 else:
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29 textbox.text = textbox.text & ($c).toRunes[0].toLower()
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30 if engine.keyWasPressed(Enter):
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31 textbox.text = textbox.text & Rune('\n')
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32 if engine.keyWasPressed(Space):
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33 textbox.text = textbox.text & Rune(' ')
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34 if engine.keyWasPressed(Backspace) and textbox.text.len > 0:
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35 textbox.text = textbox.text[0 ..< ^1]
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36 engine.renderScene(scene)
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37 engine.destroy()
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39
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40 when isMainModule:
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41 main()