From 4628d3889bef6c557e06f62d90ffddc57765e255 Mon Sep 17 00:00:00 2001
From: art0007i <art0007i@gmail.com>
Date: Thu, 2 Jan 2025 18:12:55 +0100
Subject: [PATCH] teleport hook line (only when there is 1 possible exit)

---
 src/game/client/components/players.cpp | 57 ++++++++++++++++++++------
 1 file changed, 44 insertions(+), 13 deletions(-)

diff --git a/src/game/client/components/players.cpp b/src/game/client/components/players.cpp
index e0240f23070..14b54e321c5 100644
--- a/src/game/client/components/players.cpp
+++ b/src/game/client/components/players.cpp
@@ -257,6 +257,8 @@ void CPlayers::RenderHookCollLine(
 
 			bool DoBreak = false;
 
+			std::vector<std::pair<vec2, vec2>> vLineSegments;
+
 			do
 			{
 				OldPos = NewPos;
@@ -268,9 +270,25 @@ void CPlayers::RenderHookCollLine(
 					DoBreak = true;
 				}
 
-				int Hit = Collision()->IntersectLineTeleHook(OldPos, NewPos, &FinishPos, 0x0);
+				int Tele;
+				int Hit = Collision()->IntersectLineTeleHook(OldPos, NewPos, &FinishPos, 0x0, &Tele);
+				if(!DoBreak && Hit == TILE_TELEINHOOK)
+				{
+					if(Collision()->TeleOuts(Tele - 1).size() != 1)
+					{
+						Hit = Collision()->IntersectLineTeleHook(OldPos, NewPos, &FinishPos, 0x0);
+					}
+					else
+					{
+						std::pair<vec2, vec2> NewPair = std::make_pair(InitPos, FinishPos);
+						if(std::find(vLineSegments.begin(), vLineSegments.end(), NewPair) != vLineSegments.end())
+							break;
+						vLineSegments.push_back(NewPair);
+						InitPos = NewPos = Collision()->TeleOuts(Tele - 1)[0];
+					}
+				}
 
-				if(!DoBreak && Hit)
+				if(!DoBreak && Hit && Hit != TILE_TELEINHOOK)
 				{
 					if(Hit != TILE_NOHOOK)
 					{
@@ -284,7 +302,7 @@ void CPlayers::RenderHookCollLine(
 					break;
 				}
 
-				if(Hit)
+				if(Hit && Hit != TILE_TELEINHOOK)
 					break;
 
 				NewPos.x = round_to_int(NewPos.x);
@@ -297,28 +315,41 @@ void CPlayers::RenderHookCollLine(
 				ExDirection.y = round_to_int(ExDirection.y * 256.0f) / 256.0f;
 			} while(!DoBreak);
 
+			std::pair<vec2, vec2> NewPair = std::make_pair(InitPos, FinishPos);
+			if(std::find(vLineSegments.begin(), vLineSegments.end(), NewPair) == vLineSegments.end())
+				vLineSegments.push_back(NewPair);
+
 			if(AlwaysRenderHookColl && RenderHookCollPlayer)
 			{
 				// invert the hook coll colors when using cl_show_hook_coll_always and +showhookcoll is pressed
 				HookCollColor = color_invert(HookCollColor);
 			}
 			Graphics()->SetColor(HookCollColor.WithAlpha(Alpha));
+			for(const auto &[DrawInitPos, DrawFinishPos] : vLineSegments)
+			{
+				if(HookCollSize > 0)
+				{
+					float LineWidth = 0.5f + (float)(HookCollSize - 1) * 0.25f;
+					vec2 PerpToAngle = normalize(vec2(ExDirection.y, -ExDirection.x)) * GameClient()->m_Camera.m_Zoom;
+					vec2 Pos0 = DrawFinishPos + PerpToAngle * -LineWidth;
+					vec2 Pos1 = DrawFinishPos + PerpToAngle * LineWidth;
+					vec2 Pos2 = DrawInitPos + PerpToAngle * -LineWidth;
+					vec2 Pos3 = DrawInitPos + PerpToAngle * LineWidth;
+					IGraphics::CFreeformItem FreeformItem(Pos0.x, Pos0.y, Pos1.x, Pos1.y, Pos2.x, Pos2.y, Pos3.x, Pos3.y);
+					Graphics()->QuadsDrawFreeform(&FreeformItem, 1);
+				}
+				else
+				{
+					IGraphics::CLineItem LineItem(DrawInitPos.x, DrawInitPos.y, DrawFinishPos.x, DrawFinishPos.y);
+					Graphics()->LinesDraw(&LineItem, 1);
+				}
+			}
 			if(HookCollSize > 0)
 			{
-				float LineWidth = 0.5f + (float)(HookCollSize - 1) * 0.25f;
-				vec2 PerpToAngle = normalize(vec2(ExDirection.y, -ExDirection.x)) * GameClient()->m_Camera.m_Zoom;
-				vec2 Pos0 = FinishPos + PerpToAngle * -LineWidth;
-				vec2 Pos1 = FinishPos + PerpToAngle * LineWidth;
-				vec2 Pos2 = InitPos + PerpToAngle * -LineWidth;
-				vec2 Pos3 = InitPos + PerpToAngle * LineWidth;
-				IGraphics::CFreeformItem FreeformItem(Pos0.x, Pos0.y, Pos1.x, Pos1.y, Pos2.x, Pos2.y, Pos3.x, Pos3.y);
-				Graphics()->QuadsDrawFreeform(&FreeformItem, 1);
 				Graphics()->QuadsEnd();
 			}
 			else
 			{
-				IGraphics::CLineItem LineItem(InitPos.x, InitPos.y, FinishPos.x, FinishPos.y);
-				Graphics()->LinesDraw(&LineItem, 1);
 				Graphics()->LinesEnd();
 			}
 		}