Linden Scripting Language Guide - Engineering Center

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Chapter 3. Basics3.6. Local VariablesLocal variables are scoped below their declaration within the block of code they are declared in and may bedeclared within any block of code. Thus the following code is legal and will work like C:integer test_function(){// Test vector that we can use anywhere in the functionvector test = ;integer j;for (j = 0; j < 10; j++){// This vector is a different variable than the one declared above// This IS NOT good coding practicevector test = ;}// this test failsif (test == ){// never reached}}11
Chapter 4. Flow Controlbut the most basic scripts will require some kind of flow contol. LSL comes with a complete complement ofconstructs meant to deal with conditional processing, looping, as well as simply jumping to a different point inthe script.4.1. Conditional StatementsThe ’if’ statement operates and has the same syntax as the Java/C version.check_message(string message){if(message == "open"){open();}else if(message == "close"){close();}else{llSay(0, "Unknown command: " + message);}}The statements between the open and close curly brace are performed if the conditional inside the parenthesesevaluates to a non-zero integer. Once a conditional is determined to be true (non-zero), no further processing of’else’ conditionals will be considered. The NULL_KEY constant is counted as FALSE by conditionalexpressions.There can be zero or more ’else if’ statements, and an optional final ’else’ to handle the case when none of the ifstatements evaluate to a non-zero integer.The usual set of integer arithmetic and comparison operators are available.// a function that accepts some information about its environment and// determines the the ’best’ next step. This kind of code might be// part of a simple box meant to move close to an agent and attach to// them once near. This code sample relies on the standard linden// library functions as well as two other methods not defined here.assess_next_step(integer perm, integer attached, integer balance, float dist){12
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Page 8 and 9: A.193. llSetObjectName ............
Page 10 and 11: C.20. Vector Constant..............
Page 12 and 13: Chapter 1. IntroductionThe Linden S
Page 14 and 15: Chapter 2. Getting Started2.1.2. De
Page 16 and 17: Chapter 3. BasicsNow that we have s
Page 18 and 19: Chapter 3. BasicsOperatorMeaning/ D
Page 20 and 21: Chapter 3. Basicsstring StringVar =
Page 24 and 25: Chapter 4. Flow Control}string msg;
Page 26 and 27: 4.3. JumpsChapter 4. Flow ControlA
Page 28 and 29: Chapter 5. StatesAll scripts must h
Page 30 and 31: Chapter 5. States}state TimerState{
Page 32 and 33: Chapter 6. Math6.1. Tables of Funct
Page 34 and 35: Chapter 8. Lists8.1. Tables of Func
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Page 38 and 39: Chapter 11. VehiclesWhile the follo
Page 40 and 41: Chapter 11. VehiclesSo a typical Se
Page 42: Chapter 11. Vehiclesmaximum possibl
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Page 58 and 59: A.59. llGetFreeMemoryAppendix A. Li
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Page 62 and 63: A.79. llGetPermissionsAppendix A. L
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A.127. llListenControlAppendix A. L
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A.135. llMakeFountainAppendix A. Li
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A.144. llParticleSystemAppendix A.
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A.153. llReleaseControlsAppendix A.
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Appendix A. Linden Library Function
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A.182. llSensorRepeatAppendix A. Li
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Critically damps to a height. The h
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A.241. llWaterAppendix A. Linden Li
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B.5. collision_endAppendix B. Event
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Appendix B. EventsThis event is rai
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B.24. sensorAppendix B. Eventssenso
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Appendix C. ConstantsTo ease script
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Appendix C. ConstantsPERMISSION_REM
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Appendix C. ConstantsATTACH_NOSEAtt
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Appendix C. ConstantsControl Consta
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Appendix C. ConstantsAgent Info Con
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Appendix C. ConstantsPSYS_SRC_PATTE
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Appendix C. ConstantsDATA_RATINGRet
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Appendix C. ConstantsVEHICLE_ANGULA
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C.24. Vehicle TypesAppendix C. Cons
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Appendix C. Constants| VEHICLE_FLAG
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Appendix C. Constants// remove thes
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