kat

#include <amxmodx>
#include <amxmisc>
#include <fakemeta>
#include <xs>

#define PLUGIN "Magic Marker"
#define VERSION "3.0"
#define AUTHOR "stupok69"

#define MAX_PLAYERS 32
#define USAGE_LEVEL ADMIN_LEVEL_H

new Float:origin[MAX_PLAYERS+1][3]
new prethink_counter[MAX_PLAYERS+1]
new bool:is_drawing[MAX_PLAYERS+1]
new bool:is_holding[MAX_PLAYERS+1]

new spriteid

public plugin_init()
{
        register_plugin(PLUGIN, VERSION, AUTHOR)
        register_clcmd("+paint", "paint_handler", USAGE_LEVEL, "Paint on the walls!")
        register_clcmd("-paint", "paint_handler", USAGE_LEVEL, "Paint on the walls!")
        register_forward(FM_PlayerPreThink, "forward_FM_PlayerPreThink", 0)
}

public plugin_precache()
{
        spriteid = precache_model("sprites/lgtning.spr")
}

public paint_handler(id, level, cid)
{
        if(!cmd_access(id, level, cid, 1))
                return PLUGIN_HANDLED
        
        if(!is_user_alive(id))
        {
                client_print(id, print_chat, "* You cannot use the magic marker when you are dead.")
                return PLUGIN_HANDLED
        }
        
        static cmd[2]
        read_argv(0, cmd, 1)
        
        switch(cmd[0])
        {
                case '+': is_drawing[id] = true
                case '-': is_drawing[id] = false
        }
        return PLUGIN_HANDLED
}

public forward_FM_PlayerPreThink(id)
{
        if(prethink_counter[id]++ > 5)
        {
                if(is_drawing[id] && !is_aiming_at_sky(id))
                {
                        static Float:cur_origin[3], Float:distance

                        cur_origin = origin[id]
                        
                        if(!is_holding[id])
                        {
                                fm_get_aim_origin(id, origin[id])
                                move_toward_client(id, origin[id])
                                is_holding[id] = true
                                return FMRES_IGNORED
                        }
                        
                        fm_get_aim_origin(id, origin[id])
                        move_toward_client(id, origin[id])
                        
                        distance = get_distance_f(origin[id], cur_origin)
                        
                        if(distance > 2)
                        {
                                draw_line(origin[id], cur_origin)
                        }
                }
                else
                {
                        is_holding[id] = false
                }
                prethink_counter[id] = 0
        }
        
        return FMRES_IGNORED
}

stock draw_line(Float:origin1[3], Float:origin2[3])
{
        message_begin(MSG_BROADCAST,SVC_TEMPENTITY)
        write_byte(TE_BEAMPOINTS)
        engfunc(EngFunc_WriteCoord, origin1[0])
        engfunc(EngFunc_WriteCoord, origin1[1])
        engfunc(EngFunc_WriteCoord, origin1[2])
        engfunc(EngFunc_WriteCoord, origin2[0])
        engfunc(EngFunc_WriteCoord, origin2[1])
        engfunc(EngFunc_WriteCoord, origin2[2])
        write_short(spriteid)
        write_byte(0)
        write_byte(10)
        write_byte(255)
        write_byte(50)
        write_byte(0)
        write_byte(random(255))
        write_byte(random(255))
        write_byte(random(255))
        write_byte(255)
        write_byte(0)
        message_end()
}

//from fakemeta_util.inc
stock fm_get_aim_origin(index, Float:origin[3])
{
        static Float:start[3], Float:view_ofs[3]
        pev(index, pev_origin, start)
        pev(index, pev_view_ofs, view_ofs)
        xs_vec_add(start, view_ofs, start)
        
        static Float:dest[3]
        pev(index, pev_v_angle, dest)
        engfunc(EngFunc_MakeVectors, dest)
        global_get(glb_v_forward, dest)
        xs_vec_mul_scalar(dest, 9999.0, dest)
        xs_vec_add(start, dest, dest)
        
        engfunc(EngFunc_TraceLine, start, dest, 0, index, 0)
        get_tr2(0, TR_vecEndPos, origin)
        
        return 1
}

stock move_toward_client(id, Float:origin[3])
{               
        static Float:player_origin[3]
        
        pev(id, pev_origin, player_origin)
        
        origin[0] += (player_origin[0] > origin[0]) ? 1.0 : -1.0
        origin[1] += (player_origin[1] > origin[1]) ? 1.0 : -1.0
        origin[2] += (player_origin[2] > origin[2]) ? 1.0 : -1.0
}
//Thanks Alka!
stock bool:is_aiming_at_sky(index)
{
        static target, temp
        
        get_user_aiming(index, target, temp)
        
        if(engfunc(EngFunc_PointContents,target) == CONTENTS_SKY)
                return true
        
        return false
}