Full Template for ticket #1

Templates/Full/game/scripts/server/radiusDamage.cs

@@ -0,0 +1,72 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+// 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::StaticShapeObjectType |
+                                        $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);
+      }
+   }
+}