Patch Unity Text mesh pro For fix thai vowel

Patch Unity Text mesh pro For fix thai vowel Raw

For Unity 2019 plase use this
==> https://github.com/rutcreate/TextMesh-Pro-Thai
==> 90% of font need to edit for some character
==> or add
==> "com.unity.textmeshpro": "https://github.com/rutcreate/TextMesh-Pro-Thai.git"
==> To manifest.json in your project


==> Unity5 or lower
Manual Patch

Generate Font by range 0-255,688-767,3584-3711,7104-7167,8192-8304,63232-63258

This asset cannot be use https://www.assetstore.unity3d.com/en/#!/content/84126
because this asset don't include source code see http://digitalnativestudios.com/forum/index.php?topic=1471.0.
Please contact Stephan B. .

แก้สระลอยของภาษาไทยใน asset ที่ชื่อว่า Text Mesh Pro 
โดยแก้ตามไฟล์ด้านล่าง

https://www.assetstore.unity3d.com/en/#!/content/84126 ใช้ไม่ได้เพราะไม่มี source code นาจา
ดูได้ตาม link http://digitalnativestudios.com/forum/index.php?topic=1471.0.

------

TMPro_uiEditorPanel.cs 

Add before "private SerializedProperty horizontalMapping_prop;".
      
      private SerializedProperty fixThaiVowel_prop;

Add before "enableWordWrapping_prop = serializedObject.FindProperty("m_enableWordWrapping");"

            fixThaiVowel_prop = serializedObject.FindProperty("m_fixThaiVowel");

Add after 
"
                // EXTRA PADDING
                EditorGUI.BeginChangeCheck();
                EditorGUILayout.PropertyField(enableExtraPadding_prop, new GUIContent("Extra Padding?"));
                if (EditorGUI.EndChangeCheck())
                {
                    havePropertiesChanged = true;
                    checkPaddingRequired_prop.boolValue = true;
                }
"

                EditorGUI.BeginChangeCheck();
                EditorGUILayout.PropertyField(fixThaiVowel_prop, new GUIContent("Fix Thai Vowel?"));
                if (EditorGUI.EndChangeCheck())
                {
                    havePropertiesChanged = true;
                }


------

TMP_EditorPanel.cs 

Add before "private SerializedProperty enableWordWrapping_prop;".

        private SerializedProperty fixThaiVowel_prop;

Add before "horizontalMapping_prop = serializedObject.FindProperty("m_horizontalMapping");"

			fixThaiVowel_prop = serializedObject.FindProperty("m_fixThaiVowel");

Add after 
"
                // EXTRA PADDING
                EditorGUI.BeginChangeCheck();
                EditorGUILayout.PropertyField(enableExtraPadding_prop, new GUIContent("Extra Padding?"));
                if (EditorGUI.EndChangeCheck())
                {
                    havePropertiesChanged = true;
                    checkPaddingRequired_prop.boolValue = true;
                }
"      

				// FIX THAI VOWEL
				EditorGUI.BeginChangeCheck();
				EditorGUILayout.PropertyField(fixThaiVowel_prop, new GUIContent("Fix Thai Vowel?"));
				if (EditorGUI.EndChangeCheck())
				{
					havePropertiesChanged = true;
				}
        
------

TMP_Text.cs

Add before "protected virtual void LoadFontAsset() { }".

		[SerializeField]
		private bool m_fixThaiVowel = true;
    
Add after 
"
switch (m_inputSource)
            {
                case TextInputSources.String:
                case TextInputSources.Text:
                    StringToCharArray(m_text, ref m_char_buffer);
                    break;
                case TextInputSources.SetText:
                    SetTextArrayToCharArray(m_input_CharArray, ref m_char_buffer);
                    break;
                case TextInputSources.SetCharArray:
                    break;
            }
"

			if (m_fixThaiVowel)
			{
				FixThaiVowel();
			}


Add Before end.

#region Fix Thai Vowel
		// Lower level characters
		private const int SARA_U = 3640;
		private const int SARA_UU = 3641;
		private const int PHINTHU = 3642;

		// Lower level characters after pullDown
		private const int SARA_U_DOWN = 63256;
		private const int SARA_UU_DOWN = 63257;
		private const int PHINTHU_DOWN = 63258;

		// Upper level 1 characters
		private const int MAI_HAN_AKAT = 3633;
		private const int SARA_AM = 3635;
		private const int SARA_I = 3636;
		private const int SARA_Ii = 3637;
		private const int SARA_Ue = 3638;
		private const int SARA_Uee = 3639;
		private const int MAI_TAI_KHU = 3655;

		// Upper level 1 characters after shift left
		private const int MAI_HAN_AKAT_LEFT_SHIFT = 63248;
		private const int SARA_I_LEFT_SHIFT = 63233;
		private const int SARA_Ii_LEFT_SHIFT = 63234;
		private const int SARA_Ue_LEFT_SHIFT = 63235;
		private const int SARA_Uee_LEFT_SHIFT = 63236;
		private const int MAI_TAI_KHU_LEFT_SHIFT = 63250;

		// Upper level 2 characters
		private const int MAI_EK = 3656;
		private const int MAI_THO = 3657;
		private const int MAI_TRI = 3658;
		private const int MAI_CHATTAWA = 3659;
		private const int THANTHAKHAT = 3660;
		private const int NIKHAHIT = 3661;

		// Upper level 2 characters after pull down
		private const int MAI_EK_DOWN = 63242;
		private const int MAI_THO_DOWN = 63243;
		private const int MAI_TRI_DOWN = 63244;
		private const int MAI_CHATTAWA_DOWN = 63245;
		private const int THANTHAKHAT_DOWN = 63246;

		// Upper level 2 characters after pull down and shift left
		private const int MAI_EK_PULL_DOWN_AND_LEFT_SHIFT = 63237;
		private const int MAI_THO_PULL_DOWN_AND_LEFT_SHIFT = 63238;
		private const int MAI_TRI_PULL_DOWN_AND_LEFT_SHIFT = 63239;
		private const int MAI_CHATTAWA_PULL_DOWN_AND_LEFT_SHIFT = 63240;
		private const int THANTHAKHAT_PULL_DOWN_AND_LEFT_SHIFT = 63241;

		// Upper level 2 characters after shift left
		private const int MAI_EK_LEFT_SHIFT = 63251;
		private const int MAI_THO_LEFT_SHIFT = 63252;
		private const int MAI_TRI_LEFT_SHIFT = 63253;
		private const int MAI_CHATTAWA_LEFT_SHIFT = 63254;
		private const int THANTHAKHAT_LEFT_SHIFT = 63255;
		private const int NIKHAHIT_LEFT_SHIFT = 63249;

		// Up tail characters
		private const int PO_PLA = 3611;
		private const int FO_FA = 3613;
		private const int FO_FAN = 3615;
		private const int LOchULA = 3628;

		// Down tail characters
		private const int THO_THAN = 3600;
		private const int YO_YING = 3597;
		private const int DOchADA = 3598;
		private const int TO_PATAK = 3599;
		private const int RU = 3620;
		private const int LU = 3622;

		// Cut tail characters
		private const int THO_THAN_CUT_TAIL = 63232;
		private const int YO_YING_CUT_TAIL = 63247;

		// for exploded SARA_AM (NIKHAHIT + SARA_AA)
		private const int SARA_AA = 3634;

		protected virtual void FixThaiVowel()
		{
//			ExplodeSaraAm();

			int prevCode = 0;
			int cutCode = 0;
			for (int i = 0; m_char_buffer[i] != 0; i++)
			{
				int code = m_char_buffer[i];

				if (IsUpperLevel1(code) && IsUpTail(prevCode))
				{
					m_char_buffer[i] = GetShiftLeftCharacter(code);
				}
				else if (IsUpperLevel2(code))
				{
					if (IsLowerLevel(prevCode))
					{
						prevCode = m_char_buffer[i - 2];
					}

					if (IsUpTail(prevCode))
					{
						m_char_buffer[i] = GetPullDownAndShiftLeftCharacter(code);
					}
					else if (IsLeftShiftUpperLevel1(prevCode))
					{
						m_char_buffer[i] = GetShiftLeftCharacter(code);
					}
					else if (!IsUpperLevel1(prevCode))
					{
						m_char_buffer[i] = GetPullDownCharacter(code);
					}
				}
				else if (IsLowerLevel(code) && IsDownTail(prevCode))
				{
					cutCode = GetCutTailCharacter(prevCode);

					if (prevCode != cutCode)
					{
						m_char_buffer[i - 1] = cutCode;
					}
					else
					{
						m_char_buffer[i] = GetPullDownCharacter(code);
					}
				}
				else if (IsSaraAm(code) && i > 0)
				{
					if (IsPullDown(prevCode))
					{
						m_char_buffer[i - 1] = GetPullUpCharacter(prevCode);
					}
				}

				prevCode = m_char_buffer[i];
			}
		}

		private void ExplodeSaraAm()
		{
			if (CountSaraAm() == 0) return;

			List<int> buffers = new List<int>();
			for (int i = 0; i < m_char_buffer.Length; i++)
			{
				int charCode = m_char_buffer[i];

				if (i < m_char_buffer.Length - 1 && m_char_buffer[i + 1] == SARA_AM)
				{
					if (IsUpperLevel2(charCode))
					{
						buffers.Add(NIKHAHIT);
						buffers.Add(charCode);
					}
					else
					{
						buffers.Add(charCode);
						buffers.Add(NIKHAHIT);
					}
				}
				else if (charCode == SARA_AM)
				{
					buffers.Add(SARA_AA);
				}
				else
				{
					buffers.Add(charCode);
				}
			}
			m_char_buffer = buffers.ToArray();
		}

		private int GetPullUpCharacter(int charCode)
		{
			switch (charCode)
			{
			case MAI_EK_DOWN: return MAI_EK;
			case MAI_THO_DOWN: return MAI_THO;
			case MAI_TRI_DOWN: return MAI_TRI;
			case MAI_CHATTAWA_DOWN: return MAI_CHATTAWA;
			case THANTHAKHAT_DOWN: return THANTHAKHAT;
			case SARA_U_DOWN: return SARA_U;
			case SARA_UU_DOWN: return SARA_UU;
			case PHINTHU_DOWN: return PHINTHU;
			default: return charCode;
			}
		}

		private int GetPullDownCharacter(int charCode)
		{
			switch (charCode)
			{
			case MAI_EK: return MAI_EK_DOWN;
			case MAI_THO: return MAI_THO_DOWN;
			case MAI_TRI: return MAI_TRI_DOWN;
			case MAI_CHATTAWA: return MAI_CHATTAWA_DOWN;
			case THANTHAKHAT: return THANTHAKHAT_DOWN;
			case SARA_U: return SARA_U_DOWN;
			case SARA_UU: return SARA_UU_DOWN;
			case PHINTHU: return PHINTHU_DOWN;
			default: return charCode;
			}
		}

		private int GetCutTailCharacter(int charCode)
		{
			switch (charCode)
			{
			case THO_THAN: return THO_THAN_CUT_TAIL;
			case YO_YING: return YO_YING_CUT_TAIL;
			default: return charCode;
			}
		}

		private int GetShiftLeftCharacter(int charCode)
		{
			switch (charCode)
			{
			case MAI_EK: return MAI_EK_LEFT_SHIFT;
			case MAI_THO: return MAI_THO_LEFT_SHIFT;
			case MAI_TRI: return MAI_TRI_LEFT_SHIFT;
			case MAI_CHATTAWA: return MAI_CHATTAWA_LEFT_SHIFT;
			case MAI_HAN_AKAT: return MAI_HAN_AKAT_LEFT_SHIFT;
			case SARA_I: return SARA_I_LEFT_SHIFT;
			case SARA_Ii: return SARA_Ii_LEFT_SHIFT;
			case SARA_Ue: return SARA_Ue_LEFT_SHIFT;
			case SARA_Uee: return SARA_Uee_LEFT_SHIFT;
			case MAI_TAI_KHU: return MAI_TAI_KHU_LEFT_SHIFT;
			case NIKHAHIT: return NIKHAHIT_LEFT_SHIFT;
			default: return charCode;
			}
		}

		private int GetPullDownAndShiftLeftCharacter(int charCode)
		{
			switch (charCode)
			{
			case MAI_EK: return MAI_EK_PULL_DOWN_AND_LEFT_SHIFT;
			case MAI_THO: return MAI_THO_PULL_DOWN_AND_LEFT_SHIFT;
			case MAI_TRI: return MAI_TRI_PULL_DOWN_AND_LEFT_SHIFT;
			case MAI_CHATTAWA: return MAI_CHATTAWA_PULL_DOWN_AND_LEFT_SHIFT;
			case MAI_HAN_AKAT: return MAI_HAN_AKAT_LEFT_SHIFT;
			case THANTHAKHAT: return THANTHAKHAT_PULL_DOWN_AND_LEFT_SHIFT;
			default: return charCode;
			}
		}

		private bool IsPullDown(int charCode)
		{
			return charCode == MAI_EK_DOWN || charCode == MAI_THO_DOWN ||
				charCode == MAI_TRI_DOWN || charCode == MAI_CHATTAWA_DOWN ||
				charCode == THANTHAKHAT_DOWN || charCode == SARA_U_DOWN ||
				charCode == SARA_UU_DOWN || charCode == PHINTHU_DOWN;
		}

		private bool IsUpTail(int charCode)
		{
			return charCode == PO_PLA || charCode == FO_FA || charCode == FO_FAN
				|| charCode == LOchULA;
		}

		private bool IsDownTail(int charCode)
		{
			return charCode == THO_THAN || charCode == YO_YING || charCode == DOchADA
				|| charCode == TO_PATAK || charCode == RU || charCode == LU;
		}

		private bool IsUpperLevel1(int charCode)
		{
			return charCode == MAI_HAN_AKAT || charCode == SARA_I || charCode == SARA_Ii
				|| charCode == SARA_Ue || charCode == SARA_Uee || charCode == MAI_TAI_KHU
				|| charCode == NIKHAHIT;
		}

		private bool IsUpperLevel2(int charCode)
		{
			return charCode == MAI_EK || charCode == MAI_THO || charCode == MAI_TRI
				|| charCode == MAI_CHATTAWA || charCode == THANTHAKHAT;
		}

		private bool IsLeftShiftUpperLevel1(int charCode)
		{
			return charCode == MAI_HAN_AKAT_LEFT_SHIFT || charCode == SARA_I_LEFT_SHIFT
				|| charCode == SARA_Ii_LEFT_SHIFT || charCode == SARA_Ue_LEFT_SHIFT
				|| charCode == SARA_Uee_LEFT_SHIFT || charCode == MAI_TAI_KHU_LEFT_SHIFT
				|| charCode == NIKHAHIT_LEFT_SHIFT;
		}

		private bool IsLowerLevel(int charCode)
		{
			return charCode == SARA_U || charCode == SARA_UU || charCode == PHINTHU;
		}

		private bool IsSaraAm(int charCode)
		{
			return charCode == SARA_AM;
		}

		private int CountSaraAm()
		{
			int count = 0;
			for (int i = 0; m_char_buffer[i] != 0; i++)
			{
				if (m_char_buffer[i] == SARA_AM)
				{
					count++;
				}
			}
			return count;
		}
		#endregion
    

Character set view here
https://gist.github.com/allfake/1d5a64c2a1eca36a660c

Or just thai and english
Character set => Unicode Range(Hex) in font asset creator
00,0D,20-7E,A0-B4,B6-FF,2BB-2BC,2BE-2BF,2C6-2CC,2D8-2DD,E01-E3A,E3F-E5B,F700-F710,F712-F71A