Stucklaunch: alternate attack/use and expose spam rate

- Gravity-gun spam now alternates +attack (grab) and +use (drop) instead of
  pressing both together, which would punt the prop.
- Add a Spam rate slider (1..16 ticks, default 2) so the pickup/drop cycle can
  be tuned; it persists as spam_ticks in [stucklaunch].
- Log the prop index the first few times a stucklaunch engages to aid testing.

1 files changed, 24 insertions, 10 deletions

diff --git a/src/hl2h.cpp b/src/hl2h.cpp
index 63fdcdc..84de815 100644
--- a/src/hl2h.cpp
+++ b/src/hl2h.cpp
@@ -178,8 +178,14 @@ static bool stucklaunch_prop_ok(void *ent, int tick) {
   uint32_t h = *(uint32_t *)((uintptr_t)ent + g_net.groundentity);
   int gi = (h == 0xFFFFFFFFu) ? 0 : (int)(h & 0xFFFF);
   bool on = gi > 0 && gi <= 4096 && entity_is_physics_prop(gi);
-  if (on)
+  if (on) {
+    static int prop_logs = 0;
+    if (prop_logs < 4) {
+      prop_logs++;
+      logf("stucklaunch: prop idx=%d", gi);
+    }
     last_prop_tick = tick;
+  }
   return tick - last_prop_tick < 32; // ~0.5 s at 66 tick
 }
 
@@ -189,20 +195,28 @@ static bool stucklaunch_prop_ok(void *ent, int tick) {
 static void stucklaunch_apply(CUserCmd *cmd, void *local_ent, bool onground,
                               const float *vel) {
   cmd->buttons |= IN_JUMP;
-  int phase = (cmd->tick_count / 2) & 1;
-  if (stucklaunch_use_spam_enabled()) {
+  int period = stucklaunch_spam_ticks();
+  if (period < 1)
+    period = 1;
+  int phase = (cmd->tick_count / period) & 1;
+  bool gravity = stucklaunch_gravspam_enabled() &&
+                 active_weapon_is_gravity_gun(local_ent);
+  if (gravity) {
+    // Pick up with +attack, drop with +use on the next half-cycle. Pressing
+    // both together would punt instead of regrabbing.
+    if (phase == 0) {
+      cmd->buttons |= IN_ATTACK;
+      cmd->buttons &= ~IN_USE;
+    } else {
+      cmd->buttons |= IN_USE;
+      cmd->buttons &= ~IN_ATTACK;
+    }
+  } else if (stucklaunch_use_spam_enabled()) {
     if (phase == 0)
       cmd->buttons |= IN_USE;
     else
       cmd->buttons &= ~IN_USE;
   }
-  if (stucklaunch_gravspam_enabled() &&
-      active_weapon_is_gravity_gun(local_ent)) {
-    if (phase == 0)
-      cmd->buttons |= IN_ATTACK;
-    else
-      cmd->buttons &= ~IN_ATTACK;
-  }
   if (stucklaunch_autostrafe_enabled() && !onground)
     apply_autostrafe(cmd, vel);
 }