UnityC# for Beginner

Presentated in Unity3D study

1. 6OJUZ
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   ೖ໳
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   6OJUZษڧձ
   !NBUUBL
2. ࠓ೔ͷϝχϡʔʂ
3.  (FOFSJDT
    MBNCEBEFMFHBUF
    FWFOU
    FOVN
    FYUFOTJPO
    OVMMBCMF
    WBS
    ಗ໊ܕ
    OBNFTQBDF
   
   1SPQFSUZ
   
   QBSUJBM
   UZQF
   
   ZJFME
   
   PVU
   
   -*/2 $
   จ๏
4. $
   จ๏ฤ
5. 
   (FOFSJDT
6. List<string> list = new List<string>(); HFOFSJDT
   ૯শܕ
   ͕͋Δͱ͜͏ॻ͚Δ
7. ͳͥ૯শܕ͕͋Δͷ͔ʁ ૯শܕ͕ͳ͍ੈքΛߟ͑Δ List list = new List(); List<object> list = new List<object>(); ͭ·Γ͢΂ͯͷཁૉ͕PCKFDUܕͰอଘ͞ΕΔ
8. ͳͥ૯শܕ͕͋Δͷ͔ʁ int id = (int)list[0];
 string name = (string)list[0]; PCKFDUܕΛDBTUͯ͠औΓग़͢ඞཁ͕͋Δ int id = intList[0]; ܕ͕ܾ·͍ͬͯΕ͹ɺΩϟετෆཁͰ҆શʹॻ͚Δ IntList intList = new IntList();
9. IntList, StringList, HogeList, … Ͱ΋ܕ͝ͱʹΫϥεΛఆٛͨ͘͠ͳ͍ ͳͥ૯শܕ͕͋Δͷ͔ʁ List<T> => List<int>, List<string>, … ͦ͜Ͱ۩ମతͳܕΛ໌ࣔͤͣϩδοΫ͕͔͚Δͱ
   ൚༻ੑ͕͔͍ͨɹ ͜ΕΛ࣮ݱ͢ΔͨΊɺந৅తͳܕهड़͕Ͱ͖Δ
   (FOFSJDT
   1SPHSBNNJOH
10. ͦͷଞಛ௃ $Ͱ͸૯শܕʹࡉ੍͔͍໿Λ͚ͭΒΕΔ 50%0
    XIFSFͷઆ໌ॻ͘ https://ja.wikipedia.org/wiki/C_Sharp#.E3.82.B8.E3.82.A7.E3.83.8D.E3.83.AA.E3.82.AF.E3.82.B9 $ͷ(FOFSJDT͸$ ͷςϯϓϨʔτ΍+BWBͱ΋ҟͳΔ
    ࣮ߦ࣌ʹಛघԽ͞ΕΔ
11. 
    MBNCEB
    
    EFMFHBUF
12. $Ͱ͸ؔ਺ͷܕએݴ͕Ͱ͖Δ delegate void Hello(string name); Ҿ਺ͱฦΓ஋͕ಉ͡Ͱ͋Ε͹ɺಉؔ͡਺ܕͱΈͳ͞ΕΔ
13. ͍ΖΜͳؔ਺࣮૷͕ग़དྷΔ public class Person
 {
 void SayHello(string name)
 {
 Debug.Log("Hello, " + name);
 } void Start()
 { Hello hello = SayHello; }
 } )FMMPܕͷؔ਺
14. Hello hello = (string name) =>
 {
 Debug.Log("Hello, " + name);
 };
 Hello hello = delegate(string name)
 {
 Debug.Log("Hello, " + name);
 };
 ແ໊EFMFHBUF ແ໊EFMFHBUF লུ
15. ແ໊EFMFHBUF ߋʹলུ Hello hello = (name) =>
 {
 Debug.Log("Hello, " + name);
 }; ແ໊EFMFHBUF ߋʹߋʹলུ Hello hello = name => Debug.Log("Hello, " + name);
16. hello("John"); ݺͼग़͢ͱ͖͸͢΂ͯ
17. 
    FWFOU
18. LFZXPSEͰFWFOU͕༧໿͞Ε͍ͯΔ
    ͋ΔEFMFHBUFܕΛFWFOUͱͯ͠એݴ͢Δ͜ͱ͕Ͱ͖Δ FWFOUʹ͸ෳ਺ͷؔ਺͕ొ࿥Ͱ͖Δ ొ࿥ղআ΋ग़དྷΔ event Hello hellos; hellos += SayHello;
 hellos += (name) => Debug.Log("Hello, " + name); 
 hellos -= SayHello;
19. ొ࿥͞Εͨؔ਺ΛҰؾʹݺͼग़͢͜ͱ͕Ͱ͖Δ hellos("John");
20. 
    FOVN
21. public enum Animal
 {
 Monkey,
 Lion,
 Cat,
 Dog
 } ஋ͷྻڍ͕Ͱ͖Δ
22. public enum Animal : int
 {
 Monkey = 0,
 Lion,
 Cat,
 Dog
 } FOVN஋ʹରͯ͠਺஋Λඥ෇͚ΒΕΔ จࣈྻΛͻ΋෇͚ͨΓɺ
    ෳ਺ͷ৘ใΛͻ΋෇͚ͨΓ͸Ͱ͖ͳ͍
23. FOVN஋ͷҰཡΛͱΔ &OVN(FU7BMVFT UZQFPG "OJNBM  FOVN
    
    ਺஋ʹม׵ int number = (int)Animal.Cat; ਺஋
    
    FOVN
    ʹม׵ Animal cat = (Animal)number;
24. 
    FYUFOTJPO
25. public static class StringExtension
 {
 public static string MyUpperCase(this string str)
 {
 return str.ToUpper();
 }
 }
 TUBUJD
    DMBTTΛએݴ
    Ϋϥε໊͸ԿͰ΋
    TUBUJD
    NFUIPEΛએݴ
    ୈҰҾ਺ʹ֦ு͍ͨ͠ܕͱUIJTΛ͚ͭΔ
26. string lower = “hello"; lower.MyUpperCase(); طଘͷΫϥεͰ΋ϝιουΛ௥Ճ͍͚ͯ͠Δ
27. 
    OVMMBCMF
28. int? hoge = null;
 bool? fuga = null; QSJNJUJWFܕʹ͔͔ͭ͑͠ͳ͍
    ܕͷલʹ Λ͚ͭΔ͜ͱͰOVMM͕୅ೖՄೳʹͳΔ FMWJT
    PQFSBUPS΋ػೳͱͯ͠ೖͬͯΔ int result = hoge ?? 1; OVMMͩͬͨΒӈͷϦςϥϧ  Λબ୒
29. $
    
    ͔Β
    A A
    ΋ಋೖ͞ΕΔͬΆ͍ http://stackoverflow.com/questions/4244225/c-sharp-if-null-then-null-expression
30. 
    WBS
31. ܕਪ࿦͕ར༻Ͱ͖Δ
    $
    ͷ
    BVUPʹ૬౰͢Δػೳ var hoge = "string";
 var fuga = 1; ͍͍ͪͪܕΛࠨลͰࢦఆ͠ͳͯ͘΋ਪ࿦ͯ͘͠ΕΔ
32. 
    ಗ໊ܕ
33. ܕΛએݴͤͣɺϑΟʔϧυ஋ʹ҆શʹΞΫηεͰ͖Δ var rem = new { Name = "Rem", Age = 17 };
 var ram = new { Name = "Ram", Age = 17 }; Assert.AreEqual(rem.GetType(), ram.GetType()); 'JFME໊͕ҰॹͳΒܕ΋ಉ͡ Debug.Log("Hello, " + rem.Name);
34. 
    OBNFTQBDF
35. OBNFTQBDFΛઃఆ͢Δ͜ͱͰ
    Ϋϥε໊ͷিಥΛආ͚ΒΕΔ namespace My
 {
 public class Sample
 {
 }
 }
 
 namespace Other
 {
 public class Sample
 {
 }
 }
36. ଞͷOBNFTQBDFͷΫϥεʹΞΫηε͢Δʹ͸ var sample = new My.Sample(); QSFpYͰOBNFTQBDFΛ͚ͭΔ͔ VTJOHΛ࢖ͬͯར༻͢ΔએݴΛ͢Δ using My;
37. 
    1SPQFSUZ
38. public class Person
 {
 private string _name = string.Empty;
 
 public string Name
 {
 get { return _name; }
 set { _name = value; }
 }
 }
 ܕએݴͷޙʹ
    AHFUA
    ATFUA
    ͱ͍͏༧໿ޠΛ࢖ͬͯ
    HFUUFSTFUUFSͷΞΫηε੍ޚ͕Ͱ͖Δ
39. public class Person
 {
 private string _name = string.Empty;
 
 public string Name
 {
 get { return _name; }
 private set { _name = value; }
 }
 }
 TFUUFSΛQSJWBUFʹͯ͠ॻ͖ࠐΊͳͨ͘͠Γɺ
    HFUTFU͢Δͱ͖ʹԿ͔ॲཧΛهड़ͨ͠Γग़དྷΔ
40. public class Person
 {
 public string Name { get; private set; }
 } ୯ʹHFUTFU͢Δ͚ͩͳΒলུه๏͕ར༻Ͱ͖Δ HFUUFSTFUUFS͕ఆٛͰ͖Δ͜ͱͰ,70͕ग़དྷΔͷ͕
    1SPQFSUZͷಛ௃
41. 
    1BSUJBM
42. // Partial Class
 public partial class SamplePartial : MonoBehaviour
 {
 void Start()
 {
 }
 }
 
 public partial class SamplePartial : MonoBehaviour
 {
 void Update()
 {
 }
 }
 AQBSUJBMA
    Λ͚ͭΔ͜ͱͰ࣮૷ϑΝΠϧ෼཭͕Ͱ͖Δ
43. 
    ZJFME
44. foreach (int i in ListupNumbers())
 {
 Debug.Log("number: " + i);
 } IEnumerable<int> ListupNumbers()
 {
 yield return 0;
 yield return 1;
 yield return 2;
 } -JTUͱ͔"SSBSZΛOFX͠ͳͯ͘΋
    ͜Μͳײ͡Ͱ
    ZJFME
    SFUVSOͯ͋͛͠Δͱ ̍ͭͮͭཁૉΛऔಘ͢ΔΑ͏ͳ࢓૊Έ͕؆୯ʹ͔͚Δ
45. Կ͕ϝϦοτ͔ʁ ཁૉશମΛ֨ೲ͢ΔϝϞϦ͕ඞཁͳ͍ ܁Γฦ͠ཁૉΛऔಘ͢ΔΑ͏ͳॲཧ͕εοΩϦॻ͚Δ
46. ͲͷΑ͏ʹ࣮ߦ͞ΕΔʁ using (IEnumerator<int> it = ListupNumbers().GetEnumerator())
 {
 while (it.MoveNext())
 {
 Debug.Log("number: " + it.Current);
 }
 } .PWF/FYU Ͱ͖Δ͔͗ΓJUFSBUJPO͕·ΘΔ
47. JUFSBUJPOΛதஅ͢Δʹ͸ʁ IEnumerable<int> ListupNumbers()
 {
 yield return 0;
 yield return 1;
 yield break;
 yield return 2; // ignored
 } ZJFME
    CSFBL͢Ε͹͍͍
48. 6OJUZͷ$PSPVUJOFͱͷରԠ public class Sample : MonoBehaviour
 {
 void Start()
 {
 StartCoroutine(ListupNumbers());
 StartCoroutine(ListupNumbers());
 }
 
 void Update()
 {
 Debug.Log("Updated");
 }
 
 IEnumerator<int> ListupNumbers()
 {
 for (int i = 0; i < 5; i++)
 {
 Debug.Log(i.ToString());
 yield return i;
 }
 }
 }
49. ॳΊ͚ͩ
    VQEBUF͕౓ݺ͹ΕΔ
    ͷ͸λΠϛϯάͷ໰୊ ຖϑϨʔϜ͝ͱʹ
    A.PWF/FYU A
    ͞ΕͯΔ
50. 
    PVU
51. void Increment(out int v)
 {
 v = v + 1;
 } void Set(out int v)
 {
 v = 1;
 } int i = 0;
 Set(out i); PVUΛ͔ͭ͏ͱࢀরΛ౉ͯ͠ม਺΁ͷॻ͖ࠐΈ͕Ͱ͖Δ ͨͩ͠
    PVU͕͍ͭͨม਺ͷ஋͸औಘͰ͖ͳ͍ ࢖͍ํ 
    ӈลͰWΛར༻ͯ͠ΔͷͰμϝ
52. 
    -*/2
53. IUUQXXXTMJEFTIBSFOFUGVNJUBLBZBNBEBDMJOR