Click to enlarge screenshot.

Write new object-based code to satisfy the requirements in Project #1 & exam q1 , plus some additional requirements (below).
In your folder, submit your code by April 1, in a .pde file whose name begins with p2.

NOTE:   Do not copy your p1 code.
Instead, use it as a guide to write new object-based code, using class definitons for:

• a "Hero" class
• a "Dog" class
• a "Monster" class
• a "House" class
• a "Tree" class
• a "Star" class
  // You may use different names for these classes, if you wish.
  // (I changed my class name from "Sun" to "Star", to avoid confusion.)

MODIFICATIONS:  

Project #2 requirements are modified from those of p1 & q1, as follows:
• Monster chases the dog (instead of chasing the hero, directly).
  Therefore, Monster class and Dog class need a method named chase( with two float arguments for the coordinates being chased. )

• There are three (3) trees, randomly placed whenever reset() is called

• Use the same object for both sun & moon (rather than 2 separate objects), so that the "sun" becomes the "moon" (and vice versa) whenever "sunset" occurs.

• Animate at least one of the moving objects (Hero, Dog, or Monster).

• If you click on the monster, it resets (back to some random position on the right half of the screen), but points are deducted from the score.

• More features will be added here.

• BUTTONS --     Add the following buttons to Project #2.

  First, create a "Button" class   similar to the one in h1b_buttons.pde
  HOME	move the hero to the house.
  RESET	reset all objects.
  DAY	switch to daytime.
  NITE	switch to nighttime.
  Suggestion:   test these in keyPressed(),     before connecting them to buttons.

ARRAYS & LOOPS (see Chapter 9):  
Project #2 will also require an array for the 3 trees, and a for loop to display them.
NOTE: Rows of flowers & rocks (from q1) are not required; code for these may be removed. The ladder should remain.

OPTIONAL -- Here are some ideas for extra credit:

• When the 't' key is pressed, reset the trees to random potitions, random sizes, and random colors, (without resetting anything else).
• Animate one of the moving objects based on time (frame-count), and another one based on position (change in x-coordinate).
• Add an Bird class, for animated "bird" that flies across the sky, (with flapping wings )
• When the 'b' key is pressed, drop a "bomb" that accelerates, faster and faster as it falls down.
• If the bomb hits some other object(s), change the score (and reset the bomb disappear from the screen).

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Your Project #2 objects may begin with declarations similar to the following.
Your declarations should be different:   Use first letters of your name for the "Hero" & the "Dog" -- rather than "yoshio" & " noodles", and choose another name for the monster.

//// CST 112 Project #2 / Your Name //// String title= "Project #2"; String author= "Your Name"; Hero yoshio; Dog noodles; Monster vlad; Star sol; House home; int ntrees=3; Tree[] trees = new Tree[ntrees]; boolean day=true; float horizon; // . . . (more declarations) . . .

Your Object-Oriented Project #2 may include code similar to the following.

void setup() { size( 800, 600 ); horizon= height / 4; // Instatiation of objects. // yoshio = new Hero(); noodles = new Dog(); vlad = new Monster(); sol = new Star(); for (int n=0; n<ntrees; n=n+1) { trees[n] = new Tree(); } home = new House(); // . . . (more setup) . . . reset(); } void reset() { yoshio.reset(); monster.reset(); for (int n=0; n<ntrees; n=n+1) { trees[n].reset(); } } void draw() { scene(); action(); messages(); } // . . .

void scene() { if (day) background( SKY ); else background( NITE ); sol.show(); grass(); ladder(); for (int n=0; n<ntrees; n=n+1) { trees[n].show(); } home.show(); // . . . }

Your action function may include include some lines of code similar to the following.

yoshio.move(); noodles.chase( yoshio.x, yoshio.y ); if ( ! day ) vlad.chase( noodles.x, noodles.y ); // . . . more action code . . .

You will also need some code to check whether the monster catches the hero, and update the score accordingly.

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Below is an example of code for a Star class.

class Star { // MEMBER DATA. // float x=0, y=50, dx=1, dy=0; // Position and speed. float w=30, h=30; // Width & Height of ellipse. color c = color(255,255,0); // Yellow. (Changes at nite.) // METHODS // void show() { if (day) c = color(255,255,0); // Yellow sun. else c = color(200,180,180); // Pale moon. fill(c); ellipse( x,y, w,h ); } void move() { if (x > width) { sunset(); } // Night & Day. x = x + dx; y = y + dy; } void sunset() { day = ! day; // Switch nite/day x = 0; // Reset to left } }

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Below is an example of a chase() method that could be used in the Monster class (and/or the Dog class).

class Monster { // MEMBER DATA. // float x=0, y=50, xx=1, yy=0; // Position & speed. // . . . void chase( float x2, float y2 ) { if ( day ) { return; } // No day chasing. // Slowly chase (x2,y2) xx = (x2-x) / 120; yy = (y2-y) / 120; move(); } void move() { x = x + xx; y = y + yy; } // . . . }