From 90fbb752fa6bf7f2a7de6dd8d04d273498dc66e5 Mon Sep 17 00:00:00 2001
From: Snu <coolzach5@gmail.com>
Date: Tue, 29 Sep 2020 12:58:36 +0100
Subject: [PATCH] Add functionality to PF_CANBREAKFLOORS

---
 src/p_user.c | 45 +++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 43 insertions(+), 2 deletions(-)

diff --git a/src/p_user.c b/src/p_user.c
index 8701f8a73..ed9de48bf 100644
--- a/src/p_user.c
+++ b/src/p_user.c
@@ -2611,10 +2611,51 @@ static void P_CheckBustableBlocks(player_t *player)
 
 	if ((netgame || multiplayer) && player->spectator)
 		return;
+	
+	// First iteration, check for floors we're touching directly (PF_CANBREAKFLOORS)
+	if (player->pflags & PF_CANBREAKFLOORS)
+	{
+		for (node = player->mo->touching_sectorlist; node; node = node->m_sectorlist_next)
+		{
+			ffloor_t *rover;
+			fixed_t topheight, bottomheight;
 
+			if (!node->m_sector)
+				break;
+
+			if (!node->m_sector->ffloors)
+				continue;
+			
+			for (rover = node->m_sector->ffloors; rover; rover = rover->next)
+			{
+				// Make sure it's a bustable. (And that it actually exists!)
+				if (!(rover->flags & FF_EXISTS))
+					continue;
+
+				if (!(rover->flags & FF_BUSTUP))
+					continue;
+				
+				topheight = P_GetFOFTopZ(player->mo, node->m_sector, rover, player->mo->x, player->mo->y, NULL) - player->mo->momz;
+				bottomheight = P_GetFOFBottomZ(player->mo, node->m_sector, rover, player->mo->x, player->mo->y, NULL) - player->mo->momz;
+				
+				if (player->mo->z > topheight)
+					continue;
+				
+				if (player->mo->z + player->mo->height < bottomheight)
+					continue;
+				
+				EV_CrumbleChain(NULL, rover); // node->m_sector
+				
+				// Run a linedef executor??
+				if (rover->master->flags & ML_EFFECT5)
+					P_LinedefExecute((INT16)(P_AproxDistance(rover->master->dx, rover->master->dy)>>FRACBITS), player->mo, node->m_sector);
+			}
+		}
+	}
+	
 	oldx = player->mo->x;
 	oldy = player->mo->y;
-
+	
 	if (!(player->pflags & PF_BOUNCING)) // Bouncers only get to break downwards, not sideways
 	{
 		P_UnsetThingPosition(player->mo);
@@ -2633,7 +2674,7 @@ static void P_CheckBustableBlocks(player_t *player)
 
 		if (!node->m_sector->ffloors)
 			continue;
-
+		
 		for (rover = node->m_sector->ffloors; rover; rover = rover->next)
 		{
 			if (!P_PlayerCanBust(player, rover))