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annotate tests/test_font.nim @ 904:a253a691e0d6

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fix: font-api, allow consistent use of mesh-transform
author Sam <sam@basx.dev>
date Sat, 24 Feb 2024 14:31:15 +0700
parents fa54a8a1e3e4
children 6406766a222d
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1 import std/times
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2 import std/unicode
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3
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4 import semicongine
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5
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6
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7 proc main() =
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8 # setup engine
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9 var engine = initEngine("Test fonts")
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10 engine.initRenderer([])
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11
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12 # build scene
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13 var scene = Scene(name: "main")
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14 var font = loadFont("DejaVuSans.ttf", lineHeightPixels = 210'f32)
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15 var origin = initPanel(size = newVec2f(0.01, 0.01))
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16 var main_text = font.initText("".toRunes, maxLen = 255, color = newVec4f(1, 0.15, 0.15, 1), maxWidth = 1.0, transform = scale(0.0005, 0.0005))
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17 var help_text = font.initText("""Controls
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18
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19 Horizontal alignment:
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20 F1: Left
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21 F2: Center
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22 F3: Right
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23 Vertical alignment:
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24 F4: Top
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25 F5: Center
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26 F6: Bottom""".toRunes, horizontalAlignment = Left, verticalAlignment = Top, transform = translate(-0.9, -0.9) * scale(0.0002, 0.0002))
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27 scene.add origin
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28 scene.add main_text
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29 scene.add help_text
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30 engine.loadScene(scene)
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31 mixer[].loadSound("key", "key.ogg")
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32 mixer[].setLevel(0.5)
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33
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34 while engine.updateInputs() == Running and not engine.keyIsDown(Escape):
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35 var t = cpuTime()
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36 main_text.color = newVec4f(sin(t) * 0.5 + 0.5, 0.15, 0.15, 1)
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37 if engine.windowWasResized():
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38 var winSize = engine.getWindow().size
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39
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40 # add character
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41 if main_text.text.len < main_text.maxLen - 1:
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42 for c in [Key.A, Key.B, Key.C, Key.D, Key.E, Key.F, Key.G, Key.H, Key.I,
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43 Key.J, Key.K, Key.L, Key.M, Key.N, Key.O, Key.P, Key.Q, Key.R, Key.S,
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44 Key.T, Key.U, Key.V, Key.W, Key.X, Key.Y, Key.Z]:
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45 if engine.keyWasPressed(c):
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46 discard mixer[].play("key")
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47 if engine.keyIsDown(ShiftL) or engine.keyIsDown(ShiftR):
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48 main_text.text = main_text.text & ($c).toRunes
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49 else:
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50 main_text.text = main_text.text & ($c).toRunes[0].toLower()
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51 if engine.keyWasPressed(Enter):
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52 discard mixer[].play("key")
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53 main_text.text = main_text.text & Rune('\n')
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54 if engine.keyWasPressed(Space):
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55 discard mixer[].play("key")
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56 main_text.text = main_text.text & Rune(' ')
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57
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58 # remove character
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59 if engine.keyWasPressed(Backspace) and main_text.text.len > 0:
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60 discard mixer[].play("key")
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61 main_text.text = main_text.text[0 ..< ^1]
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62
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63 # alignemtn with F-keys
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64 if engine.keyWasPressed(F1): main_text.horizontalAlignment = Left
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65 elif engine.keyWasPressed(F2): main_text.horizontalAlignment = Center
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66 elif engine.keyWasPressed(F3): main_text.horizontalAlignment = Right
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67 elif engine.keyWasPressed(F4): main_text.verticalAlignment = Top
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68 elif engine.keyWasPressed(F5): main_text.verticalAlignment = Center
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69 elif engine.keyWasPressed(F6): main_text.verticalAlignment = Bottom
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70
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71 origin.refresh()
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72 main_text.text = main_text.text & Rune('_')
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73 main_text.refresh()
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74 main_text.text = main_text.text[0 ..< ^1]
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75 help_text.refresh()
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76 engine.renderScene(scene)
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77 engine.destroy()
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80 when isMainModule:
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81 main()