#pragma semicolon 1
#pragma newdecls required

#include <sdktools>

Handle sdkCallVomitOnPlayer, sdkCallBileJarPlayer, sdkCallBileJarInfected;

public void OnPluginStart()
{
	Handle ConfigFile = LoadGameConfigFile("added_vomit");

	StartPrepSDKCall(SDKCall_Player);
	PrepSDKCall_SetFromConf(ConfigFile, SDKConf_Signature, "CTerrorPlayer_OnVomitedUpon");
	PrepSDKCall_AddParameter(SDKType_CBasePlayer, SDKPass_Pointer);
	PrepSDKCall_AddParameter(SDKType_PlainOldData, SDKPass_Plain);
	sdkCallVomitOnPlayer = EndPrepSDKCall();

	StartPrepSDKCall(SDKCall_Player);
	PrepSDKCall_SetFromConf(ConfigFile, SDKConf_Signature, "CTerrorPlayer_OnHitByVomitJar");
	PrepSDKCall_AddParameter(SDKType_CBaseEntity, SDKPass_Pointer);
	sdkCallBileJarPlayer = EndPrepSDKCall();

	StartPrepSDKCall(SDKCall_Entity);
	PrepSDKCall_SetFromConf(ConfigFile, SDKConf_Signature, "Infected_OnHitByVomitJar");
	PrepSDKCall_AddParameter(SDKType_CBaseEntity, SDKPass_Pointer);
	sdkCallBileJarInfected = EndPrepSDKCall();

	HookEvent("player_death", EventHook);
}

public Action EventHook(Event event, const char[] name, bool dontBroadcast)
{
	int client = GetClientOfUserId(event.GetInt("userid"));
	if (client > 0 && client <= MaxClients && IsClientInGame(client) && GetEntProp(client, Prop_Send, "m_zombieClass") == 2)
	{
		SetVomit(client);
	}
}

public void OnEntityDestroyed(int entity)
{
	if (IsValidEntity(entity))
	{
		char sTypeEx[56];
		GetEntityClassname(entity, sTypeEx, sizeof sTypeEx);
		if (strcmp(sTypeEx, "vomitjar_projectile") == 0)
		{
			SetVomit(entity);
		}
	}
}

stock void SetVomit(int client)
{

	float fDistance;
	char entType[64];
	float vPos[3], vTargetPos[3];
	GetEntPropVector(client, Prop_Send, "m_vecOrigin", vPos);
	vPos[2] += 60;

	for (int i = 1; i <= 2048; i++)
	{
		if (!IsValidEntity(i) || i == client) continue;
		if (i <= MaxClients && IsClientInGame(i) && IsPlayerAlive(i))
		{
			GetClientAbsOrigin(i, vTargetPos);
			fDistance = GetVectorDistance(vPos, vTargetPos);
			if(fDistance < 150 && IsVisibleTo(vTargetPos, vPos))
			{
				switch( GetClientTeam(i) )
				{
					case 2: SDKCall(sdkCallBileJarPlayer, i, client, true);
					case 3: SDKCall(sdkCallVomitOnPlayer, i, client, true);
				}
			}
		}
		else
		{
			GetEdictClassname(i, entType, sizeof(entType));
			if(strcmp(entType, "witch") == 0 || strcmp(entType, "infected") == 0)
			{
				GetEntityAbsOrigin(i, vTargetPos);
				fDistance = GetVectorDistance(vPos, vTargetPos);
				if (fDistance < 150 && IsVisibleTo(vTargetPos, vPos))
				{
					SDKCall(sdkCallBileJarInfected, i, client);
				}
			}
		}
	}
}

stock bool bIsSurvivor(int client)
{
    return client > 0 && client <= MaxClients && IsClientInGame(client) && GetClientTeam(client) == 2 && !IsClientInKickQueue(client) && IsPlayerAlive(client);
}

static bool IsVisibleTo(float position[3], float targetposition[3])
{
    float vAngles[3], vLookAt[3];

    MakeVectorFromPoints(position, targetposition, vLookAt);
    GetVectorAngles(vLookAt, vAngles);

    Handle trace = TR_TraceRayFilterEx(position, vAngles, MASK_SHOT, RayType_Infinite, _TraceFilter);

    bool isVisible = false;
    if (TR_DidHit(trace))
    {
        float vStart[3];
        TR_GetEndPosition(vStart, trace);

        if ((GetVectorDistance(position, vStart, false) + 25.0) >= GetVectorDistance(position, targetposition))
        {
            isVisible = true;
        }
    }

    delete trace;
    return isVisible;
}

public bool _TraceFilter(int entity, int contentsMask)
{
    if (IsValidEntity(entity))
    {
        return false;
    }
    return true;
}

stock void GetEntityAbsOrigin(int entity, float origin[3])
{
	if (entity && IsValidEntity(entity)
	&& (GetEntSendPropOffs(entity, "m_vecOrigin") != -1)
	&& (GetEntSendPropOffs(entity, "m_vecMins") != -1)
	&& (GetEntSendPropOffs(entity, "m_vecMaxs") != -1))
	{
		float mins[3], maxs[3];
		GetEntPropVector(entity, Prop_Send, "m_vecOrigin", origin);
		GetEntPropVector(entity, Prop_Send, "m_vecMins", mins);
		GetEntPropVector(entity, Prop_Send, "m_vecMaxs", maxs);

		origin[0] += (mins[0] + maxs[0]) * 0.5;
		origin[1] += (mins[1] + maxs[1]) * 0.5;
		origin[2] += (mins[2] + maxs[2]) * 0.5;
	}
}