+
+#if 0
+ float m;
+ // find m so that
+ // speedfactor * (1 + e) * m / (1 + m) == 1
+ m = 1 / ((1 + 0) * speedfactor - 1);
+ vector v;
+ v = explosion_calcpush(explosion_f * speedfactor, m, target_v, 1, 0);
+ // the factor we then get is:
+ // 1
+ printf("MASS: %f\nv: %v -> %v\nENERGY BEFORE == %f + %f = %f\nENERGY AFTER >= %f\n",
+ m,
+ target_v, target_v + v,
+ target_v * target_v, m * explosion_f * speedfactor * explosion_f * speedfactor, target_v * target_v + m * explosion_f * speedfactor * explosion_f * speedfactor,
+ (target_v + v) * (target_v + v));
+ return v;
+#endif
+ return explosion_f * explosion_calcpush_getmultiplier(explosion_f * speedfactor, target_v);