;;;;;;;;;;;;;;;;;;;;; ;;;;Mick Censored;;;; ;;;;Asteroid Belt;;;; ;;;;;;;;;;;;;;;;;;;;; globals [ was-mouse-down? points] breed [ spaceships spaceship ] ;; a turtle shaped as a rocket breed [ missiles missile ] ;; red turtles shaped as arrows that a spaceship shoots breed [ asteroids asteroid ] ;; brown turtles shaped as asteroids breed [ stars star ] ;; yellow turtles shaped as stars ;; This creates the visual area for the game. It creates 50 stars and scatters them around the area, ;; giving them specific settings. It then creates the asteroids, giving them similar settings as ;; the stars. Then it makes the spaceship, and finally, sets the color of the patches. to setup ca cct-stars 50 [ setxy random-xcor random-ycor set size 0.50 set color yellow set shape "star" ] cct-asteroids number-of-asteroids ;; Choice number of asteroids the user wishes to make [ setxy random-xcor random-ycor set shape "asteroid" set size (random 5) + 1 set color brown ] cct-spaceships 1 [ setxy 0 0 set size 5 set shape "spaceship" ] ask patches [ set pcolor 101 ] end ;; Takes commands from other commands, which includes starting the game. If there is nothing ;; of a sort of breed, this command stops. to go move-asteroids set-heading shoot-missiles if count asteroids = 0 [ stop ] if count spaceships = 0 [ stop ] ifelse Mouse-control? [ask spaceship (number-of-asteroids + 50) [ set heading towardsxy mouse-xcor mouse-ycor ] if mouse-down? and not was-mouse-down? [shoot shoot-missiles] set was-mouse-down? mouse-down?] [set-heading] end ;; Makes the asteroids move at a certain speed. It also asks the spaceships to stay in one ;; place, and asks any spaceships that get in the way of the moving asteroids to die. If the ;; spaceship is killed, the user receives a user massage saying the user has lost, and ends the game. to move-asteroids ask asteroids [ fd .03 rt random 5 lt random 5 ] ask spaceships [setxy 0 0] ask asteroids [ if any? spaceships in-radius 1 [ ask spaceships in-radius 1 [ die ] ] ] if count spaceships = 0 [ user-message "Game over. You lose.\nClick on 'New Game' to try again." stop] end ;; Asks the missiles to move. It is placed in the "go" procedure instead of the "shoot" ;; procedure to ensure that they move forever. to shoot-missiles ask missiles [ fd 0.5 ] disappear end ;; Sets the heading of the spaceship. It is also placed under "go", the forever button. to set-heading ask spaceships [ set heading heading-angle ] ;; Users choose the heading of the spaceship with a slider end ;; Fires the missiles. It creates a missile one at a time, and the missiles are shot with the ;; "shoot-missiles" procedure in the "go" procedure. If there are any asteroids in the same ;; coordinates of the missiles, the asteroids will die. If there are no more asteroids, any ;; time this command is used will make a user message saying the user has won. to shoot if count spaceships = 0 [ user-message "Game over. You lose.\nClick on 'New Game' to try again." stop] cct-missiles 1 [ set shape "arrow 3" setxy 0 0 set color red set size 2 set heading heading-of spaceship (number-of-asteroids + 50) ;; the who of the spaceship depends on the number of asteroids plus 50 ] ask missiles [ if any? asteroids with [size = 1] in-radius 1.5 [ask asteroids with [size = 1] in-radius 1.5 [set points points + random 50 die] ask missiles-here [die]] if any? asteroids with [size = 2] in-radius 1.75 [ask asteroids with [size = 2] in-radius 1.75 [set points points + random 100 die] ask missiles-here [die]] if any? asteroids with [size = 3] in-radius 2 [ask asteroids with [size = 3] in-radius 2 [set points points + random 150 die] ask missiles-here [die]] if any? asteroids with [size = 4] in-radius 2.5 [ask asteroids with [size = 4] in-radius 2.5 [set points points + random 200 die] ask missiles-here [die]] if any? asteroids with [size = 5] in-radius 2.75 [ask asteroids with [size = 5] in-radius 2.75 [set points points + random 250 die] ask missiles-here [die]] ] if count asteroids = 0 [ user-message "Game over. You win.\nYou can stop pressing the button now." stop] end ;; Will kill any missile that goes past these boundaries. Used in the "shoot-missiles" procedure. to disappear ask missiles [if xcor > 17 or ycor > 17 or xcor < -17 or ycor < -17 [die] ] end @#$#@#$#@ GRAPHICS-WINDOW 302 18 732 469 17 17 12.0 1 10 1 1 1 0 1 1 1 -17 17 -17 17 CC-WINDOW 5 530 996 625 Command Center 0 SLIDER 28 140 246 173 number-of-asteroids number-of-asteroids 1 100 15 1 1 Asteroids SLIDER 9 327 187 360 heading-angle heading-angle 0 360 0 1 1 Degrees BUTTON 46 179 136 212 New Game setup NIL 1 T OBSERVER T NIL BUTTON 161 180 227 213 Start go T 1 T OBSERVER T NIL BUTTON 106 394 202 427 Fire Missiles shoot NIL 1 T OBSERVER T NIL MONITOR 6 239 192 288 Number of Asteroids Remaining count asteroids 2 1 TEXTBOX 8 10 292 67 You're on a voyage in outer space to the outer depths of the solar system. But in order to get there, you must pass through the Asteroid Belt. In this game, there is only one rule: if it's an asteroid, destroy it. TEXTBOX 3 68 300 86 -------------------------------------------------------------------------- TEXTBOX 3 76 302 94 -------------------------------------------------------------------------- TEXTBOX 7 92 292 134 Using the slider below, choose the number of asteroids you wish to face. After you have done that, Click on "New Game" to setup the area, and "Start" to begin the game. TEXTBOX 3 217 300 235 -------------------------------------------------------------------------- TEXTBOX 210 233 291 304 This monitor will show how many asteroids are left after they are destroyed. TEXTBOX 3 303 301 321 -------------------------------------------------------------------------- TEXTBOX 193 318 299 372 With this slider, you can choose the direction in which you want to shoot in. TEXTBOX 4 373 302 391 -------------------------------------------------------------------------- TEXTBOX 21 431 295 516 This button is your weapon to destroy the asteroids. Click on it multiple times for the best results of destroying them. But be careful! These asteroids can be very tricky! Make sure they do no reach your spaceship, or you will lose the game. Destroy all asteroids to complete the game. SWITCH 792 78 932 111 Mouse-control? Mouse-control? 0 1 -1000 MONITOR 821 208 910 257 Points Earned points 3 1 TEXTBOX 756 116 987 186 You can also play the game by using your mouse. Switch this switch to On and place your mouse in the visual area. Click to shoot the missiles in a certain direction. Switch it to Off to use the regular slider and button method. TEXTBOX 738 188 986 206 ------------------------------------------------------------- TEXTBOX 761 265 982 293 Gives a random assortment of points, which depend on the size of the asteroids. TEXTBOX 739 296 982 314 ------------------------------------------------------------ TEXTBOX 758 320 984 361 Remember: Shoot at the heart of the asteroids for best results. The Earth is depending on you. Good luck, and Godspeed. @#$#@#$#@ Mick Censored WHAT IS IT? ----------- Asteroid Belt is a game based off of an old arcade game of the same name. The objective of the game is to destroy all asteroids in the way of a spaceship, and to avoid getting hit by one. When all the asteroids are destroyed, the game is won. But when a spaceship is hit by an asteroid, the game is lost. Levels depend on the number of asteroids, which is left for the user to decide. There is only one life in each game which must be used wisely. HOW TO USE IT -------------- Buttons: NEW GAME - Resets the area on the playing field, which includes setting up the asteroids, stars, and spaceship; START - A Forever button that begins the game by moving the asteroids, allowing the spaceship to change its heading, and allowing the spaceship to fire missiles. It MUST be pressed in order for many of the widgets to work; FIRE MISSILES - Shoots missiles from the spaceship. Monitors: NUMBER OF ASTEROIDS REMAINING - Counts the number of asteroids remaining throughout the game. POINTS - Records how amny points was won from destroying and asteroid. Sliders: NUMBER-OF-ASTEROIDS - Allows the user to choose the amount of asteroids in the game (Note: DON'T move the slider in the middle of the game. It may result in a runtime error); HEADING-ANGLE - Allows the user to choose the direction of the spaceship. It will only work if the Start button is pressed. Switches: MOUSE-CONTROL? - Allows the user to use the mouse in the game. Turtles: SPACESHIP - That thing in the middle? That's you. ASTEROIDS - The turtles that do all the moving. They're the things you need to shoot at and destroy. MISSILES - Turtles that fire out of the spaceship in a varying heading. It will work if the Start button is down and the Fire Missiles button is pressed. STARS - Used solely for decorative purposes; for that "outer space" feel. No profound importance whatsoever. (Instructions are written in the Interface Tab) THINGS TO TRY ------------- It will take a lot of energy to destroy the asteroids, because of it's ability to move away from the missiles. Try to shoot directly at the "heart" of the asteroid. You must use a rapid fire for it to be quickly destroyed. It also works well if you shoot at it head on (i.e. at the pointed end.) Before or after a game, try changing the number of turtles to set the difficulty higher of lower. Again, make sure not to do it in the middle of a game. EXTENDING THE MODEL ------------------- Size of the asteroids can be altered, as well as the missile speed using sliders. The spaceship can also be programmed to move. CHEAT: You can change the Fire Missiles button into a Forever button. This will make several missiles shoot out and destroy the asteroids very quickly. Moving the heading-angle slider can make the spaceship destroy many asteroids in one rotation. It's only recommended if the number of asteroids is very high, but other than that, it should be avoided. (Note: Extensive use of this cheat may result in boredom.) NETLOGO FEATURES ---------------- The primitive "in-radius" is a major asset to this model. This model also makes usage of user messages, which pop up at the end of a game. CREDITS AND REFERENCES ---------------------- http://www.panix.com/~pbrooks/servers/class/spring2007/materials/mcs1/Techniques-gun.html Was helpful in teaching how to create guns and bullets, or in this case, spaceships and missiles. @#$#@#$#@ default true 0 Polygon -7500403 true true 150 5 40 250 150 205 260 250 link true 0 Line -7500403 true 150 0 150 300 link direction true 0 Line -7500403 true 150 150 30 225 Line -7500403 true 150 150 270 225 airplane true 0 Polygon -7500403 true true 150 0 135 15 120 60 120 105 15 165 15 195 120 180 135 240 105 270 120 285 150 270 180 285 210 270 165 240 180 180 285 195 285 165 180 105 180 60 165 15 arrow true 0 Polygon -7500403 true true 150 0 0 150 105 150 105 293 195 293 195 150 300 150 arrow 3 true 0 Polygon -7500403 true true 135 255 105 300 105 225 135 195 135 75 105 90 150 0 195 90 165 75 165 195 195 225 195 300 165 255 asteroid true 0 Polygon -7500403 true true 90 105 150 30 210 105 210 195 150 270 90 195 Rectangle -16777216 true false 120 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