csdm_spawn_manager: better spawns placement for Z coord (#53)

* Add ducking detection

* Fix: index of bounds error

* ADD_Z_POSITION to 2.0

cstrike/addons/amxmodx/scripting/CSDM_ReAPI/csdm_spawn_manager.sma

@@ -15,7 +15,7 @@ const Float:MIN_SPAWN_RADIUS = 450.0 		// beta
 
 // spawn editor options
 const MAX_SEARCH_DISTANCE = 2500
-const Float:ADD_Z_POSITION = 15.0
+const Float:ADD_Z_POSITION = 2.0
 
 new const Float:g_flGravityValues[] = {1.0, 0.5, 0.25, 0.15, 0.05}
 
@@ -175,7 +175,7 @@ RandomSpawn(const pPlayer)
 	if(!g_iTotalPoints || g_bFirstSpawn[pPlayer])
 		return false
 
-	new iRand = random(g_iTotalPoints), iAttempts, iLast = g_iLastSpawnIndex[pPlayer]
+	new iRand = random(g_iTotalPoints - 1), iAttempts, iLast = g_iLastSpawnIndex[pPlayer]
 	do
 	{
 		iAttempts++
@@ -188,8 +188,8 @@ RandomSpawn(const pPlayer)
 			return true
 		}
 
-		if(iRand++ > g_iTotalPoints) {
-			iRand = random(g_iTotalPoints)
+		if(iRand++ >= g_iTotalPoints) {
+			iRand = random(g_iTotalPoints - 1)
 		}
 
 	} while(iAttempts <= g_iTotalPoints)
@@ -575,6 +575,9 @@ GetPosition(const pEntity, Float:vecOrigin[coord_e], Float:vecAngles[coord_e], F
 	get_entvar(pEntity, var_origin, vecOrigin)
 	get_entvar(pEntity, var_angles, vecAngles)
 	get_entvar(pEntity, var_v_angle, vecVAngles)
+
+	if(get_entvar(pEntity, var_flags) & FL_DUCKING)
+		vecOrigin[2] += 18.0
 }
 
 bool:SetAimedEntity(const pPlayer, pEntity = NULLENT, bool:bPrint = true)