treatment "centipede.ztt"{
	background{
		table globals{
		}
		table subjects{
		}
		table summary{
		}
		table contracts{
		}
		table clients{
		}
		table treatments{
		}
		table sessionglobals{
		}
		table participations{
		}
		numsubjects = 2;
		numgroups = 1;
		numpracticeperiods = 0;
		numactualperiods = 1;
		exchangerate = 1;
		startendowment = 0;
		showupfee = 0;
		noAutoscope = FALSE;
		firstBoxesOnTop = FALSE;
		showupfeeawaytext = "You are making losses. Do you want to invest the showupfee in order to continue?";
		showupfeeawayyestext = "Yes";
		showupfeeawaynotext = "No";
		moneyawaytext = "You are  making losses. Do you want to continue?";
		moneyawayyestext = "Yes";
		moneyawaynotext = "No";
		bancruptwaittext = "Please wait until the experimenter unlocks your PC.";
		program{
			table = subjects;
			do{
				Pot = 10;
					PotMultiplier = 2;
					TakerShare = 0.8;
					// The move at which the pot was taken; 0 if it was not.
					TakenAt = 0;
			}
		}
		screen action{
			usesbg = TRUE;
			withalertscreen = FALSE;
			noalertscreen = FALSE;
			headerbox "Header"{
				hasframe = TRUE;
				height = 10%;
				top = 0p;
				cuttop = TRUE;
				showPeriods = TRUE;
				showNumPeriods = TRUE;
				periodtext = "Period";
				periodoftext = "of";
				practiceperiodprefix = "Trial ";
				showtime = TRUE;
				timestr = "Remaining time [sec]:";
				pleasedecidetext = "Please reach a decision.";
			}
		}
		screen wait{
			usesbg = TRUE;
			withalertscreen = FALSE;
			noalertscreen = FALSE;
			standardbox "Text"{
				hasframe = TRUE;
				buttonposition = BOTTOMRIGHT;
				buttonsequence = HORIZONTAL;
				item{
					label = "Please wait until the experiment continues.";
				}
			}
		}
	}
	stage "Move 1"{
		startwaitforall = TRUE;
		startConditionStr = "";
		singleentry = FALSE;
		singleentrycontinuation = FALSE;
		timeouttype = ifnoinput;
		timeout = 60;
		program{
			table = subjects;
			do{
				Participate = if(Player == 1 & TakenAt == 0, 1, 0);
			}
		}
		screen action{
			usesbg = TRUE;
			withalertscreen = FALSE;
			noalertscreen = FALSE;
			standardbox "Move"{
				hasframe = TRUE;
				buttonposition = BOTTOMRIGHT;
				buttonsequence = HORIZONTAL;
				item{
					label = "Move 1 of 6.";
				}
				item{
					label = "You are player";
					variable = Player;
					format = "1";
					input = FALSE;
				}
				item{
					label = "The pot";
					variable = Pot;
					format = "1";
					input = FALSE;
				}
				item{
					label = "If you take, you get 80% of the pot and the other player 20%, and the game ends.";
				}
				item{
					label = "If you pass, the pot doubles and the other player moves.";
				}
				item{
				}
				item{
					label = "You";
					variable = Take;
					format = "!radio: 0=\"Pass\"; 1=\"Take\";";
					input = TRUE;
					showdefault = FALSE;
					emptyallowed = FALSE;
					min = 0;
					max = 1;
				}
				button "OK"{
					clearinputafterok = FALSE;
					norecordmadeorselected = FALSE;
					terminatestage = FALSE;
					donotterminatestage = FALSE;
					specialbuttoncolor = FALSE;
					buttoncolor = 0;
					program{
						table = subjects;
						do{
							subjects.do {
									if (Group == :Group) {
										if (:Take == 1) {
											TakenAt = 1;
										} else {
											Pot = Pot * PotMultiplier;
										}
									}
								}
						}
					}
				}
			}
		}
		screen wait{
			usesbg = TRUE;
			withalertscreen = FALSE;
			noalertscreen = FALSE;
		}
	}
	stage "Move 2"{
		startwaitforall = TRUE;
		startConditionStr = "";
		singleentry = FALSE;
		singleentrycontinuation = FALSE;
		timeouttype = ifnoinput;
		timeout = 60;
		program{
			table = subjects;
			do{
				Participate = if(Player == 2 & TakenAt == 0, 1, 0);
			}
		}
		screen action{
			usesbg = TRUE;
			withalertscreen = FALSE;
			noalertscreen = FALSE;
			standardbox "Move"{
				hasframe = TRUE;
				buttonposition = BOTTOMRIGHT;
				buttonsequence = HORIZONTAL;
				item{
					label = "Move 2 of 6.";
				}
				item{
					label = "You are player";
					variable = Player;
					format = "1";
					input = FALSE;
				}
				item{
					label = "The pot";
					variable = Pot;
					format = "1";
					input = FALSE;
				}
				item{
					label = "If you take, you get 80% of the pot and the other player 20%, and the game ends.";
				}
				item{
					label = "If you pass, the pot doubles and the other player moves.";
				}
				item{
				}
				item{
					label = "You";
					variable = Take;
					format = "!radio: 0=\"Pass\"; 1=\"Take\";";
					input = TRUE;
					showdefault = FALSE;
					emptyallowed = FALSE;
					min = 0;
					max = 1;
				}
				button "OK"{
					clearinputafterok = FALSE;
					norecordmadeorselected = FALSE;
					terminatestage = FALSE;
					donotterminatestage = FALSE;
					specialbuttoncolor = FALSE;
					buttoncolor = 0;
					program{
						table = subjects;
						do{
							subjects.do {
									if (Group == :Group) {
										if (:Take == 1) {
											TakenAt = 2;
										} else {
											Pot = Pot * PotMultiplier;
										}
									}
								}
						}
					}
				}
			}
		}
		screen wait{
			usesbg = TRUE;
			withalertscreen = FALSE;
			noalertscreen = FALSE;
		}
	}
	stage "Move 3"{
		startwaitforall = TRUE;
		startConditionStr = "";
		singleentry = FALSE;
		singleentrycontinuation = FALSE;
		timeouttype = ifnoinput;
		timeout = 60;
		program{
			table = subjects;
			do{
				Participate = if(Player == 1 & TakenAt == 0, 1, 0);
			}
		}
		screen action{
			usesbg = TRUE;
			withalertscreen = FALSE;
			noalertscreen = FALSE;
			standardbox "Move"{
				hasframe = TRUE;
				buttonposition = BOTTOMRIGHT;
				buttonsequence = HORIZONTAL;
				item{
					label = "Move 3 of 6.";
				}
				item{
					label = "You are player";
					variable = Player;
					format = "1";
					input = FALSE;
				}
				item{
					label = "The pot";
					variable = Pot;
					format = "1";
					input = FALSE;
				}
				item{
					label = "If you take, you get 80% of the pot and the other player 20%, and the game ends.";
				}
				item{
					label = "If you pass, the pot doubles and the other player moves.";
				}
				item{
				}
				item{
					label = "You";
					variable = Take;
					format = "!radio: 0=\"Pass\"; 1=\"Take\";";
					input = TRUE;
					showdefault = FALSE;
					emptyallowed = FALSE;
					min = 0;
					max = 1;
				}
				button "OK"{
					clearinputafterok = FALSE;
					norecordmadeorselected = FALSE;
					terminatestage = FALSE;
					donotterminatestage = FALSE;
					specialbuttoncolor = FALSE;
					buttoncolor = 0;
					program{
						table = subjects;
						do{
							subjects.do {
									if (Group == :Group) {
										if (:Take == 1) {
											TakenAt = 3;
										} else {
											Pot = Pot * PotMultiplier;
										}
									}
								}
						}
					}
				}
			}
		}
		screen wait{
			usesbg = TRUE;
			withalertscreen = FALSE;
			noalertscreen = FALSE;
		}
	}
	stage "Move 4"{
		startwaitforall = TRUE;
		startConditionStr = "";
		singleentry = FALSE;
		singleentrycontinuation = FALSE;
		timeouttype = ifnoinput;
		timeout = 60;
		program{
			table = subjects;
			do{
				Participate = if(Player == 2 & TakenAt == 0, 1, 0);
			}
		}
		screen action{
			usesbg = TRUE;
			withalertscreen = FALSE;
			noalertscreen = FALSE;
			standardbox "Move"{
				hasframe = TRUE;
				buttonposition = BOTTOMRIGHT;
				buttonsequence = HORIZONTAL;
				item{
					label = "Move 4 of 6.";
				}
				item{
					label = "You are player";
					variable = Player;
					format = "1";
					input = FALSE;
				}
				item{
					label = "The pot";
					variable = Pot;
					format = "1";
					input = FALSE;
				}
				item{
					label = "If you take, you get 80% of the pot and the other player 20%, and the game ends.";
				}
				item{
					label = "If you pass, the pot doubles and the other player moves.";
				}
				item{
				}
				item{
					label = "You";
					variable = Take;
					format = "!radio: 0=\"Pass\"; 1=\"Take\";";
					input = TRUE;
					showdefault = FALSE;
					emptyallowed = FALSE;
					min = 0;
					max = 1;
				}
				button "OK"{
					clearinputafterok = FALSE;
					norecordmadeorselected = FALSE;
					terminatestage = FALSE;
					donotterminatestage = FALSE;
					specialbuttoncolor = FALSE;
					buttoncolor = 0;
					program{
						table = subjects;
						do{
							subjects.do {
									if (Group == :Group) {
										if (:Take == 1) {
											TakenAt = 4;
										} else {
											Pot = Pot * PotMultiplier;
										}
									}
								}
						}
					}
				}
			}
		}
		screen wait{
			usesbg = TRUE;
			withalertscreen = FALSE;
			noalertscreen = FALSE;
		}
	}
	stage "Move 5"{
		startwaitforall = TRUE;
		startConditionStr = "";
		singleentry = FALSE;
		singleentrycontinuation = FALSE;
		timeouttype = ifnoinput;
		timeout = 60;
		program{
			table = subjects;
			do{
				Participate = if(Player == 1 & TakenAt == 0, 1, 0);
			}
		}
		screen action{
			usesbg = TRUE;
			withalertscreen = FALSE;
			noalertscreen = FALSE;
			standardbox "Move"{
				hasframe = TRUE;
				buttonposition = BOTTOMRIGHT;
				buttonsequence = HORIZONTAL;
				item{
					label = "Move 5 of 6.";
				}
				item{
					label = "You are player";
					variable = Player;
					format = "1";
					input = FALSE;
				}
				item{
					label = "The pot";
					variable = Pot;
					format = "1";
					input = FALSE;
				}
				item{
					label = "If you take, you get 80% of the pot and the other player 20%, and the game ends.";
				}
				item{
					label = "If you pass, the pot doubles and the other player moves.";
				}
				item{
				}
				item{
					label = "You";
					variable = Take;
					format = "!radio: 0=\"Pass\"; 1=\"Take\";";
					input = TRUE;
					showdefault = FALSE;
					emptyallowed = FALSE;
					min = 0;
					max = 1;
				}
				button "OK"{
					clearinputafterok = FALSE;
					norecordmadeorselected = FALSE;
					terminatestage = FALSE;
					donotterminatestage = FALSE;
					specialbuttoncolor = FALSE;
					buttoncolor = 0;
					program{
						table = subjects;
						do{
							subjects.do {
									if (Group == :Group) {
										if (:Take == 1) {
											TakenAt = 5;
										} else {
											Pot = Pot * PotMultiplier;
										}
									}
								}
						}
					}
				}
			}
		}
		screen wait{
			usesbg = TRUE;
			withalertscreen = FALSE;
			noalertscreen = FALSE;
		}
	}
	stage "Move 6"{
		startwaitforall = TRUE;
		startConditionStr = "";
		singleentry = FALSE;
		singleentrycontinuation = FALSE;
		timeouttype = ifnoinput;
		timeout = 60;
		program{
			table = subjects;
			do{
				Participate = if(Player == 2 & TakenAt == 0, 1, 0);
			}
		}
		screen action{
			usesbg = TRUE;
			withalertscreen = FALSE;
			noalertscreen = FALSE;
			standardbox "Move"{
				hasframe = TRUE;
				buttonposition = BOTTOMRIGHT;
				buttonsequence = HORIZONTAL;
				item{
					label = "Move 6 of 6.";
				}
				item{
					label = "You are player";
					variable = Player;
					format = "1";
					input = FALSE;
				}
				item{
					label = "The pot";
					variable = Pot;
					format = "1";
					input = FALSE;
				}
				item{
					label = "If you take, you get 80% of the pot and the other player 20%, and the game ends.";
				}
				item{
					label = "If you pass, the pot doubles, and you each get half of it.";
				}
				item{
				}
				item{
					label = "You";
					variable = Take;
					format = "!radio: 0=\"Pass\"; 1=\"Take\";";
					input = TRUE;
					showdefault = FALSE;
					emptyallowed = FALSE;
					min = 0;
					max = 1;
				}
				button "OK"{
					clearinputafterok = FALSE;
					norecordmadeorselected = FALSE;
					terminatestage = FALSE;
					donotterminatestage = FALSE;
					specialbuttoncolor = FALSE;
					buttoncolor = 0;
					program{
						table = subjects;
						do{
							subjects.do {
									if (Group == :Group) {
										if (:Take == 1) {
											TakenAt = 6;
										} else {
											Pot = Pot * PotMultiplier;
										}
									}
								}
						}
					}
				}
			}
		}
		screen wait{
			usesbg = TRUE;
			withalertscreen = FALSE;
			noalertscreen = FALSE;
		}
	}
	stage "Results"{
		startwaitforall = TRUE;
		startConditionStr = "";
		singleentry = FALSE;
		singleentrycontinuation = FALSE;
		timeouttype = ifnoinput;
		timeout = 30;
		program{
			table = subjects;
			do{
				Taker = if(mod(TakenAt, 2) == 1, 1, 2);
					Profit = if(TakenAt == 0, Pot / 2, if(Player == Taker, Pot * TakerShare, Pot - Pot * TakerShare));
			}
		}
		screen action{
			usesbg = TRUE;
			withalertscreen = FALSE;
			noalertscreen = FALSE;
			standardbox "Results"{
				hasframe = TRUE;
				buttonposition = BOTTOMRIGHT;
				buttonsequence = HORIZONTAL;
				item{
					label = "The pot was taken at move (0: never)";
					variable = TakenAt;
					format = "1";
					input = FALSE;
				}
				item{
					label = "The pot";
					variable = Pot;
					format = "1";
					input = FALSE;
				}
				item{
					label = "Your payoff";
					variable = Profit;
					format = "0.01";
					input = FALSE;
				}
				button "Continue"{
					clearinputafterok = FALSE;
					norecordmadeorselected = FALSE;
					terminatestage = FALSE;
					donotterminatestage = FALSE;
					specialbuttoncolor = FALSE;
					buttoncolor = 0;
				}
			}
		}
		screen wait{
			usesbg = TRUE;
			withalertscreen = FALSE;
			noalertscreen = FALSE;
		}
	}
	roles{
		role "S 1"{
		}
		role "S 2"{
		}
	}
	period "1"{
		prompt = "";
		subject 1{
			name = "";
			group = 1;
			do{
				Player = 1;
			}
		}
		subject 2{
			name = "";
			group = 1;
			do{
				Player = 2;
			}
		}
	}
}