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/* AMX Mod script. 
* 
* Sniper Realism 1.0
* (c) 2003, SuicideDog 
* This file is provided as is (no warranties).
*
*  BASED ON CODE FROM *BMJ* -- thanks man
* 
* Ok.. works for scout, awp, g3sg1, sig550, sig552, and aug
*
* Features:
* Fadein like DOD (thanks to BMJ)
* Scope jiggles if scoped, and you move
* Unscopes you if you jump/fall (also prevents scoping in the air)
*/
 
/* CVARS:
* amx_snipe_realism (1)|0
* turns it off and on
* amx_scopetime1 "1"
* 1 being the time it takes to fade in at level 1 scope
* amx_scopetime2 "4"
* 4 being the time it takes to fade in at level 2 scope 
*/ 
 
/* TO DO:
*  Add recoil of some kind
*/
 
#include <amxmod> 
#include <VexdUM>
 
new velocityI[3] 
new gmsgShake 
new taskid[32]
 
stock get_user_velocity(id, velocity[3]) {
  new Float:vel[3]
  entity_get_vector(id, EV_VEC_velocity, vel)
  FVecIVec(vel, velocity)
}
 
 
public plugin_init() 
{ 
	register_plugin("Sniper Realism", "1.0", "SuicideDog") 
	register_event("SetFOV", "scope_func", "be", "1<90") 
	register_event("SetFOV", "unscope_func", "be", "1=90") 
	register_event("ResetHUD","newround","b")
	register_cvar("amx_snipe_realism", "1") 
	register_cvar("amx_scopetime1", "1") 
	register_cvar("amx_scopetime2", "4") 
	gmsgShake = get_user_msgid("ScreenShake") 
 
} 
 
public newround(id){// this is needed to make sure the lastinv works for unscoping
	client_cmd(id,"weapon_knife;lastinv")
	return PLUGIN_CONTINUE
}
 
public scope_func(id) 
{ 
	if (get_cvar_num("amx_snipe_realism")) 
{ 
		new fov = read_data(1) 
		new weapon, clip, ammo
		weapon = get_user_weapon(id, clip, ammo) 
 
		if (weapon == 3 || weapon == 18 || weapon == 13 || weapon == 24 || weapon == 8 || weapon == 27) // scout, awp, g3sg1, sig550, sig552, and aug 
 
			message_begin(MSG_ONE, get_user_msgid("ScreenFade"), {0,0,0}, id) 
 
			if (fov > 20){ 
				write_short(get_cvar_num("amx_scopetime1")<<12) 
			}else{ 
				write_short(get_cvar_num("amx_scopetime2")<<12) 
			}
			write_short(1<<16) 
			write_short(1<<1) 
			write_byte(0) 
			write_byte(0) 
			write_byte(0) 
			write_byte(255) 
			message_end() 
			if (taskid[id] == 0){
				new playerid[1]
				playerid[0] = id
				taskid[id] = get_user_userid(id)// ties the task to the user id <!-- s:) --><img src=\"{SMILIES_PATH}/icon_e_smile.gif\" alt=\":)\" title=\"mosoly\" /><!-- s:) -->
				set_task(0.1, "check_movement", taskid[id], playerid[0], 1, "b") 
			}
		} 
	return PLUGIN_HANDLED
} 
 
public unscope_func(id) 
{ 
	message_begin(MSG_ONE, get_user_msgid("ScreenFade"), {0,0,0}, id) 
	write_short(1<<1) 
	write_short(1<<1) 
	write_short(1<<1) 
	write_byte(0) 
	write_byte(0) 
	write_byte(0) 
	write_byte(0) 
	message_end() 
	remove_task(taskid[id])
	taskid[id] = 0
	return PLUGIN_HANDLED
} 
 
public check_movement(playerid[]) { //check for movement 
	new id = playerid[0]
	get_user_velocity(id, velocityI)
	new flags = entity_get_int(id, EV_INT_flags)
 
 
	if (!(flags & (1<<9))){ //if in the air, unscope
		client_cmd(id,"lastinv;lastinv") 
		unscope_func(id)
		return PLUGIN_HANDLED 
	} 
	if (velocityI[0] != 0 || velocityI[1] != 0 || velocityI[2] != 0) { //check movement, if moving shake 
		new duck = entity_get_int(id,EV_INT_flags)
 
		if(duck & FL_DUCKING){ //if ducking shake less
			message_begin(MSG_ONE,gmsgShake,{0,0,0},id) 
	 		write_short(1<<11) // shake amount 
			write_short(1<<11) // shake lasts this long 
			write_short(1<<11) // shake noise frequency 
			message_end() 
		}else{
			message_begin(MSG_ONE,gmsgShake,{0,0,0},id) 
	 		write_short(1<<13) // shake amount 
			write_short(1<<11) // shake lasts this long 
			write_short(1<<13) // shake noise frequency 
			message_end() 
		}
		return PLUGIN_HANDLED 
	} 
	return PLUGIN_HANDLED 
}