---frogger.nlogo

来自「NETLOGO」· NLOGO 代码 · 共 1,030 行 · 第 1/2 页

to level-5
  create-car -4 -5 270 .3
  create-car 0 -5 270 .3
  create-car 4 -5 270 .3
  create-car 7 -5 270 .3
  create-car -3 -4 90 .2 
  create-car -5 -4 90 .2
  create-car 5 -4 90 .2
  create-car 1 -4 90 .2
  create-car 8 -4 90 .2
  create-car -4 -3 270 .3
  create-car 0 -3 270 .3
  create-car 4 -3 270 .3
  create-car 7 -3 270 .3
  create-car -3 -2 90 .2 
  create-car -5 -2 90 .2
  create-car 4 -2 90 .2
  create-car 1 -2 90 .2
  create-car 7 -2 90 .2
  create-car 0 -1 270 .3 
  create-car 5 -1 270 .3
  create-car -7 -1 270 .3 
  create-car -3 -1 270 .3 
  create-log -5 3 2 .2
  create-log 0 5 2 .1
  create-log -5 7 2 .2
  create-river-turtle -4 4 2 .3
  create-river-turtle 4 4 3 .3
  create-river-turtle -7 4 2 .3
  create-river-turtle -1 6 2 .3
  create-river-turtle -8 6 2 .3
  create-river-turtle 3 6 3 .3
  make-river-turtle-dive 5
end


; *** NetLogo Model Copyright Notice ***
;
; This model was created as part of the project:
; PARTICIPATORY SIMULATIONS: NETWORK-BASED DESIGN FOR SYSTEMS LEARNING IN
; CLASSROOMS.  The project gratefully acknowledges the support of the
; National Science Foundation (REPP program) -- grant number REC #9814682.
;
; Copyright 2002 by Uri Wilensky.  Updated 2002.  All rights reserved.
;
; Permission to use, modify or redistribute this model is hereby granted,
; provided that both of the following requirements are followed:
; a) this copyright notice is included.
; b) this model will not be redistributed for profit without permission
;    from Uri Wilensky.
; Contact Uri Wilensky for appropriate licenses for redistribution for
; profit.
;
; To refer to this model in academic publications, please use:
; Wilensky, U. (2002).  NetLogo Frogger model.
; http://ccl.northwestern.edu/netlogo/models/Frogger.
; Center for Connected Learning and Computer-Based Modeling,
; Northwestern University, Evanston, IL.
;
; *** End of NetLogo Model Copyright Notice ***
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GRAPHICS-WINDOW
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CC-WINDOW
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Command Center

BUTTON
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LEFT
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BUTTON
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RIGHT
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BUTTON
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UP
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OBSERVER

BUTTON
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DOWN
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BUTTON
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New Game
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BUTTON
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Start
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NIL
Level
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SLIDER
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start-time
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SLIDER
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MONITOR
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Frog Jumps
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TEXTBOX
502
391
645
448
You may also move by clicking in the graphics window.

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WHAT IS IT?
-----------
This model is based on the classic arcade game, Frogger.  The object of the game is to get the frog, found at the bottom of the screen, across the traffic and river to a safe lily pad at the top of the screen.

There are two main obstacles to overcome, the road and the river.  The road has cars and trucks moving at various speeds that are liable to run over the frog.  Once you have crossed the road safely, you must overcome the danger lurking in the river.  Unfortunately, you will die if you jump in the river, so you must keep moving towards the lily pads by jumping on the logs or sets of turtles moving back and forth in the river's current.

You must also avoid getting pushed off the edge of the screen by a log or turtle.  In addition, in the later levels, some of the turtles will dive under water -- if you happen to be standing on them you will drown!  Finally, you must also get across the board before the allotted amount of time runs out.


HOW TO USE IT
-------------
Buttons:
- NEW-GAME resets the game
- START starts the game
- The direction buttons (UP, DOWN, LEFT, RIGHT) will move your frog in that direction

Another way to move is to use your mouse.  Just click in the direction you want to move (one click per jump).  (If you click diagonally, the frog jumps up or down, not left or right.  This makes crossing the river easier.)

Monitors
- FROGS LEFT tells you how many remaining lives you have
- LEVEL monitors the current level you are playing
- TIME LEFT shows you how much time remains 
- FROG JUMPS tells you how many jumps you has taken

Sliders
 START-LIVES will determine how many lives you will start with
 START-TIME sets how much time you start out with
 START-LEVEL is used to determine which level you will start on

Identifying Things in the Board:
- Green Frog:      This is you.
- Truck:           This is a truck.  Avoid at all costs.  They are usually pretty slow.
- Car:             This is a car.  Avoid at all costs.  They are usually fast.
- Brown Squares:   This is a log.  You need to jump onto these to get across the river.
- Turtle:          This is a turtle.  You need to jump onto these.  Avoid ones that dive.
- Green Circles:   This is the lily pad.  You want to get on these to win the level.
- Blue Squares:    This is the river.  You can't land on this.
- Gray Squares:    This is the road.  You can jump on this, but watch out for vehicles.
- Green Patches:   This is grass.  You are pretty safe here.


THINGS TO TRY
-------------
See if you can get through all of the levels.

Try to beat your previous time.

Try to make as few jumps as possible in the time allotted.

Try to use as few lives as possible.


THINGS TO NOTICE
----------------
Determine how many jumps it would take to get across the board without obstacles.

Determine how many jumps it would take to get across the board with obstacles.

How does each of the two questions above related to the time it takes you to complete a level?

If you take just as many jumps with obstacles as without, why does it take different durations of time to get across?


EXTENDING THE MODEL
-------------------
Write your own levels by altering the code in the Procedures tab.

Add some bonuses or additional hazards.

Implement a scoring system.

Write a robot script that will move your frog automatically.


NETLOGO FEATURES
-----------------
This model uses breeds to implement the different moving game pieces.

The every command is used to control the speed of the game.

The user-message command presents messages to the user.

mouse-down?, mouse-xcor, and mouse-ycor are used to detect and handle mouse clicks.


RELATED MODELS
--------------
Pac Man, Tetris


CREDITS AND REFERENCES
----------------------
To refer to this model in academic publications, please use: Wilensky, U. (1998).  NetLogo Frogger model. http://ccl.northwestern.edu/netlogo/models/Frogger. Center for Connected Learning and Computer-Based Modeling, Northwestern University, Evanston, IL.
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NetLogo 1.2.1
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