Initial commit

Torque/SDK/example/starter.fps/server/scripts/radiusDamage.cs

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+//-----------------------------------------------------------------------------
+// Torque Game Engine 
+// Copyright (C) GarageGames.com, Inc.
+//-----------------------------------------------------------------------------
+
+// Support function which applies damage to objects within the radius of
+// some effect, usually an explosion.  This function will also optionally 
+// apply an impulse to each object.
+
+function radiusDamage(%sourceObject, %position, %radius, %damage, %damageType, %impulse)
+{
+   // Use the container system to iterate through all the objects
+   // within our explosion radius.  We'll apply damage to all ShapeBase
+   // objects.
+   InitContainerRadiusSearch(%position, %radius, $TypeMasks::ShapeBaseObjectType);
+
+   %halfRadius = %radius / 2;
+   while ((%targetObject = containerSearchNext()) != 0) {
+
+      // Calculate how much exposure the current object has to
+      // the explosive force.  The object types listed are objects
+      // that will block an explosion.  If the object is totally blocked,
+      // then no damage is applied.
+      %coverage = calcExplosionCoverage(%position, %targetObject,
+         $TypeMasks::InteriorObjectType |  $TypeMasks::TerrainObjectType |
+         $TypeMasks::ForceFieldObjectType | $TypeMasks::VehicleObjectType);
+      if (%coverage == 0)
+         continue;
+
+      // Radius distance subtracts out the length of smallest bounding
+      // box axis to return an appriximate distance to the edge of the
+      // object's bounds, as opposed to the distance to it's center.
+      %dist = containerSearchCurrRadiusDist();
+
+      // Calculate a distance scale for the damage and the impulse.
+      // Full damage is applied to anything less than half the radius away,
+      // linear scale from there.
+      %distScale = (%dist < %halfRadius)? 1.0:
+         1.0 - ((%dist - %halfRadius) / %halfRadius);
+
+      // Apply the damage
+      %targetObject.damage(%sourceObject, %position,
+         %damage * %coverage * %distScale, %damageType);
+
+      // Apply the impulse
+      if (%impulse) 
+      {
+         %impulseVec = VectorSub(%targetObject.getWorldBoxCenter(), %position);
+         %impulseVec = VectorNormalize(%impulseVec);
+         %impulseVec = VectorScale(%impulseVec, %impulse * %distScale);
+         %targetObject.applyImpulse(%position, %impulseVec);
+      }
+   }
+}