fixes:

- fixed bumpedge test for obstacles
- fixed obstacle crash when going to the south or east
- added wasm builder

systems/obstacle_system.go

@@ -91,24 +91,30 @@ func (system *ObstacleSystem) Update() error {
 			}
 		}
 
+		//system.GridContainer.Grid.CheckGridCollision(obsposition, obsvelocity)
 		// FIXME: this is the same loop as in player_system, unite the
 		// two, just iterate over all entities with pos,vel,render, dammit
 		if obsvelocity.Moving() {
-			ok, tilepos := system.GridContainer.Grid.GetSolidNeighborPosition(obsposition, obsvelocity, true)
+			ok, newpos := system.GridContainer.Grid.BumpEdge(obsposition, obsvelocity)
 			if ok {
-				intersects, newpos := tilepos.Intersects(obsposition, obsvelocity)
-				if intersects {
-					// slog.Debug("collision with foreign obstacle detected", "tile",
-					// 	tilepos, "obs", obsposition, "new", newpos)
+				//slog.Debug("falling off the edge", "newpos", newpos)
+				obsposition.Set(newpos)
+			} else {
+				ok, tilepos := system.GridContainer.Grid.GetSolidNeighborPosition(obsposition, obsvelocity, true)
+				if ok {
+					intersects, newpos := tilepos.Intersects(obsposition, obsvelocity)
+					if intersects {
+						// slog.Debug("collision with foreign obstacle detected", "tile",
+						// 	tilepos, "obs", obsposition, "new", newpos)
 
-					obsposition.Set(newpos)
-					obsvelocity.ResetDirectionAndStop()
+						obsposition.Set(newpos)
+						obsvelocity.ResetDirectionAndStop()
+					}
 				}
+
+				obsposition.Move(obsvelocity)
 			}
-
-			obsposition.Move(obsvelocity)
 		}
-
 	}
 
 	for _, entity := range EntitiesToRemove {