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record the tile grid position of the closest collision found

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Gered 2013-09-15 10:21:09 -04:00
parent b791a041a2
commit 1d20d0700e
1 changed files with 15 additions and 3 deletions
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16
src/com/blarg/gdx/tilemap3d/TileMapSweptSphereCollisionChecker.java
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@ -19,8 +19,10 @@ public class TileMapSweptSphereCollisionChecker implements SweptSphereWorldColli
public TileMap tileMap; public TileMap tileMap;
public final TileCoord lastCollisionTilePosition = new TileCoord();
@Override @Override
public void checkForCollisions(SweptSphere sphere, BoundingBox possibleCollisionArea) { public boolean checkForCollisions(SweptSphere sphere, BoundingBox possibleCollisionArea) {
if (tileMap == null) if (tileMap == null)
throw new UnsupportedOperationException("No TileMap object is set."); throw new UnsupportedOperationException("No TileMap object is set.");
@ -28,6 +30,8 @@ public class TileMapSweptSphereCollisionChecker implements SweptSphereWorldColli
max.set(0, 0, 0); max.set(0, 0, 0);
float lastCollisionDistance = Float.MAX_VALUE; float lastCollisionDistance = Float.MAX_VALUE;
boolean foundCollision = false;
lastCollisionTilePosition.set(0, 0, 0);
// TODO: I don't think we even need to check if the area overlaps ... ? // TODO: I don't think we even need to check if the area overlaps ... ?
// (it probably always will, right?) // (it probably always will, right?)
@ -77,8 +81,13 @@ public class TileMapSweptSphereCollisionChecker implements SweptSphereWorldColli
// will contain info for the closest intersection // will contain info for the closest intersection
// found // found
boolean collided = SweptSphereCollisionTester.test(sphere, a, b, c); boolean collided = SweptSphereCollisionTester.test(sphere, a, b, c);
if (collided && sphere.nearestCollisionDistance < lastCollisionDistance) if (collided && sphere.nearestCollisionDistance < lastCollisionDistance) {
foundCollision = true;
lastCollisionDistance = sphere.nearestCollisionDistance; lastCollisionDistance = sphere.nearestCollisionDistance;
// this is the closest collision found so far
// record the grid position ...
lastCollisionTilePosition.set(x, y, z);
} }
} }
} }
@ -86,4 +95,7 @@ public class TileMapSweptSphereCollisionChecker implements SweptSphereWorldColli
} }
} }
} }
return foundCollision;
}
} }