151 lines
		
	
	
		
			4.3 KiB
		
	
	
	
		
			SourcePawn
		
	
	
	
	
	
			
		
		
	
	
			151 lines
		
	
	
		
			4.3 KiB
		
	
	
	
		
			SourcePawn
		
	
	
	
	
	
#include <sourcemod>
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#include <sdktools>
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#define VERSION "1.2.1"
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public Plugin myinfo =
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{
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	name = "Slope Landing Fix",
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	author = "Mev & Blacky",
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	description = "Makes it so landing on a slope will gaurantee a boost.",
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	version = VERSION,
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	url = "http://steamcommunity.com/id/blaackyy/ & http://steamcommunity.com/id/mevv/"
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}
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float g_vCurrent[MAXPLAYERS + 1][3];
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float g_vLast[MAXPLAYERS + 1][3];
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bool g_bOnGround[MAXPLAYERS + 1];
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bool g_bLastOnGround[MAXPLAYERS + 1];
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ConVar g_hSlopeFixEnable;
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bool   g_bSlopeFixEnable;
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public void OnPluginStart()
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{
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	CreateConVar("slopefix_version", VERSION, "Slope fix version", FCVAR_NOTIFY|FCVAR_REPLICATED);
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	g_hSlopeFixEnable = CreateConVar("slopefix_enable", "1", "Enables slope fix.", FCVAR_NOTIFY, true, 0.0, true, 1.0);
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	HookConVarChange(g_hSlopeFixEnable, OnEnableSlopeFixChanged);
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}
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public void OnConfigsExecuted()
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{
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	g_bSlopeFixEnable = GetConVarBool(g_hSlopeFixEnable);
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}
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public OnEnableSlopeFixChanged(Handle:convar, const String:oldValue[], const String:newValue[])
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{
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	g_bSlopeFixEnable = bool:StringToInt(newValue);
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}
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public bool TraceRayDontHitSelf(int entity, int mask, any data)
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{
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	return entity != data && !(0 < entity <= MaxClients);
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}
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public Action OnPlayerRunCmd(int client, int &buttons, int &impulse, float vel[3], float angles[3], int &weapon)
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{
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	if(g_bSlopeFixEnable == true)
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	{
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		g_bLastOnGround[client] = g_bOnGround[client];
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		if (GetEntityFlags(client) & FL_ONGROUND)
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			g_bOnGround[client] = true;
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		else
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			g_bOnGround[client] = false;
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		g_vLast[client][0]    = g_vCurrent[client][0];
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		g_vLast[client][1]    = g_vCurrent[client][1];
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		g_vLast[client][2]    = g_vCurrent[client][2];
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		g_vCurrent[client][0] = GetEntPropFloat(client, Prop_Send, "m_vecVelocity[0]");
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		g_vCurrent[client][1] = GetEntPropFloat(client, Prop_Send, "m_vecVelocity[1]");
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		g_vCurrent[client][2] = GetEntPropFloat(client, Prop_Send, "m_vecVelocity[2]");
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		// Check if player landed on the ground
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		if (g_bOnGround[client] == true && g_bLastOnGround[client] == false)
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		{
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			// Set up and do tracehull to find out if the player landed on a slope
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			float vPos[3];
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			GetEntPropVector(client, Prop_Data, "m_vecOrigin", vPos);
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			float vMins[3];
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			GetEntPropVector(client, Prop_Send, "m_vecMins", vMins);
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			float vMaxs[3];
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			GetEntPropVector(client, Prop_Send, "m_vecMaxs", vMaxs);
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			float vEndPos[3];
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			vEndPos[0] = vPos[0];
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			vEndPos[1] = vPos[1];
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			vEndPos[2] = vPos[2] - FindConVar("sv_maxvelocity").FloatValue;
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			TR_TraceHullFilter(vPos, vEndPos, vMins, vMaxs, MASK_PLAYERSOLID_BRUSHONLY, TraceRayDontHitSelf, client);
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			if(TR_DidHit())
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			{
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				// Gets the normal vector of the surface under the player
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				float vPlane[3], vLast[3];
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				TR_GetPlaneNormal(INVALID_HANDLE, vPlane);
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				// Make sure it's not flat ground and not a surf ramp (1.0 = flat ground, < 0.7 = surf ramp)
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				if(0.7 <= vPlane[2] < 1.0)
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				{
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					/*
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					Copy the ClipVelocity function from sdk2013
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					(https://mxr.alliedmods.net/hl2sdk-sdk2013/source/game/shared/gamemovement.cpp#3145)
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					With some minor changes to make it actually work
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					*/
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					vLast[0]  = g_vLast[client][0];
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					vLast[1]  = g_vLast[client][1];
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					vLast[2]  = g_vLast[client][2];
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					vLast[2] -= (FindConVar("sv_gravity").FloatValue * GetTickInterval() * 0.5);
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					float fBackOff = GetVectorDotProduct(vLast, vPlane);
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					float change, vVel[3];
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					for(int i; i < 2; i++)
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					{
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						change  = vPlane[i] * fBackOff;
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						vVel[i] = vLast[i] - change;
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					}
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					float fAdjust = GetVectorDotProduct(vVel, vPlane);
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					if(fAdjust < 0.0)
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					{
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						for(int i; i < 2; i++)
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						{
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							vVel[i] -= (vPlane[i] * fAdjust);
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						}
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					}
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					vVel[2] = 0.0;
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					vLast[2] = 0.0;
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					// Make sure the player is going down a ramp by checking if they actually will gain speed from the boost
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					if(GetVectorLength(vVel) > GetVectorLength(vLast))
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						SetClientVelocity(client, vVel);
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				}
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			}
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		}
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	}
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}
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stock void SetClientVelocity(int client, float vVelocity[3])
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{
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	static bool GotOffset = false;
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	static int Offset = -1;
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	if(!GotOffset)
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	{
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		Offset = FindDataMapInfo(client, "m_vecAbsVelocity");
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		GotOffset = true;
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	}
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	// Apply velocity on client.
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	if(Offset != -1) // Fixes trigger OnStartTouch/OnEndTouch bug
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		SetEntDataVector(client, Offset, vVelocity);
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	else // Fallback to old one
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		TeleportEntity(client, NULL_VECTOR, NULL_VECTOR, vVelocity);
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}
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