LlApplyImpulse

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函数名
Function: llApplyImpulse( vector momentum, integer local );
引用对对象应用脉冲
•矢量动量 •整数局部-布尔值，如果真动量被视为局部方向向量，如果假动量被视为区域方向向量 瞬间冲动。llSetForce具有连续推送。”“瞬时”似乎意味着一秒钟的冲量，因为一个力（牛顿）的作用等于物体的质量（千克）持续一秒钟会使其加速到1的速度（米每秒），这似乎就是这个函数所发生的情况。

注意事项
只适用于支持物理的对象。 设置应用于质心的对象上的初始动量。动量是当物体不受其他力（如重力）影响时，获得初始速度运动所需的质量*速度 动量的大小可以被物体的可用能量缩小。对于重物体，动量的上限为动量=20000。（而不是之前所说的20）。对于快速物体，速度将被限制在202米/秒（因此动量将反映这个上限）

示例

// Rez an object, and drop this script in it. // This will launch it at the owner. default { state_entry() { key ownerKey = llGetOwner(); vector ownerPosition = llList2Vector(llGetObjectDetails(ownerKey, [OBJECT_POS]), 0); // if the owner is not in the sim, stop fooling around if (llGetAgentSize(ownerKey) == ZERO_VECTOR) return; // else llSetStatus(STATUS_PHYSICS, TRUE); vector objectPosition = llGetPos(); vector direction = llVecNorm(ownerPosition - objectPosition); llApplyImpulse(direction * 100, 0); } } <pre> 示例2 <pre> Make yourself a beer can, drop this script into it, and have some target practice. vector gHome; integer gHit; default { collision_start(integer num) { if (!gHit) { llSetTimerEvent(15.0); gHome = llGetPos(); gHit = TRUE; } llSetStatus(STATUS_PHYSICS, TRUE); llTriggerSound("b90ed62a-2737-b911-bb53-6b9228bbc933",1.0); llApplyImpulse(llGetMass()*<0,0,5.0>,TRUE); llApplyRotationalImpulse(llGetMass()*<llFrand(1.0),llFrand(1.0),llFrand(1.0)>,TRUE); llResetTime(); } land_collision(vector where) { if (llGetTime() < 0.5) { llResetTime(); llApplyImpulse(llGetMass()*<0,0,llFrand(1.0)>,TRUE); llApplyRotationalImpulse(llGetMass()*<llFrand(1.0),llFrand(1.0),llFrand(1.0)>,TRUE); } } timer() { llSetStatus(STATUS_PHYSICS,FALSE); gHit = FALSE; llSetRegionPos(gHome); // Send the can home, even if more than 10m away llSetRot(ZERO_ROTATION); llSetTimerEvent(0.0); } } // Uselesse script , just to demo that // the parameter is a momentum not a force // the initial velocity * mass = momentum when there are no other forces ( collisions, gravity ) // the momentum is not capped to 20 // momentum may be capped nevertheless because velocity is capped around 200 meters/second ; in this case it will be capped to 200m/s * mass integer tid; vector initPos; vector Impulse; default { state_entry() { llSetPhysicsMaterial(GRAVITY_MULTIPLIER,0,0,0,0); llSetStatus(STATUS_PHANTOM, TRUE); llSetStatus(STATUS_PHYSICS, TRUE); } touch_end(integer n) { tid=llTarget(initPos=llGetPos(),30); llSetStatus(STATUS_PHYSICS, TRUE); Impulse = llGetMass()*<0,0,25>; llOwnerSay(llList2Json(JSON_ARRAY, [ "Setup a Momentum=", Impulse ])); llApplyImpulse( Impulse , FALSE); } moving_start() { llOwnerSay(llList2Json(JSON_ARRAY, [ "Velocity= ", llGetVel(), "Force=",llGetMass()*llGetAccel(), "Momentum=", llGetVel()*llGetMass()])); } not_at_target() { llSetTimerEvent(0.0); llTargetRemove(tid); llSetStatus(STATUS_PHYSICS, FALSE); llSetRegionPos(initPos); } } // Example of results // ["Setup a Momentum=","<0.000000, 0.000000, 183.181381>"] // [10:19] Object: ["Velocity=","<0.000000, 0.000000, 25.000002>","Force=","<0.000000, 0.000000, -0.171902>","Momentum=","<0.000000, 0.000000, 183.181396>"] // And for an heavy object, the cap is 20000 // ["Setup a Momentum=","<0.000000, 0.000000, 28244.332031>"] // [11:01] Object: ["Velocity=","<0.000000, 0.000000, 17.702671>","Force=","<0.000000, 0.000000, -28.363781>","Momentum=","<0.000000, 0.000000, 20000.005859>

相关函数
• llApplyRotationalImpulse • llSetForce–设置连续力

相关事件
不可预测性 取自模拟器用户组/抄本/2012年10月5日 [16:24]Andrew Linden:llApplyImpulse（）更不可预测 [16:24]安德鲁·林登：因为它使用了传统的脚本“能源预算” [16:25]Andrew Linden:如果脚本对象没有足够的“能量”来执行它想要的脉冲，这将减弱结果 [16:25]Andrew Linden:而且，llApplyImpulse（）有很大的扭曲潜力 [16:25]Andrew Linden:所以我们很早以前就以很高的能耗率阻碍了它的发展