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spcs:2015:day4 [2015/07/09 00:57] ffpaladin [Class Assignments] |
spcs:2015:day4 [2015/07/09 05:26] ffpaladin |
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} | } | ||
| | ||
- | </code> | ||
- | |||
- | <code java> | ||
- | |||
- | // Car Objects from Processing.org | ||
- | |||
- | // Example: Two Car objects | ||
- | Car myCar1; | ||
- | Car myCar2; // Two objects! | ||
- | |||
- | void setup() { | ||
- | size(200,200); | ||
- | // Parameters go inside the parentheses when the object is constructed. | ||
- | myCar1 = new Car(color(255,0,0),0,100,2); | ||
- | myCar2 = new Car(color(0,0,255),0,10,1); | ||
- | } | ||
- | |||
- | void draw() { | ||
- | background(255); | ||
- | myCar1.drive(); | ||
- | myCar1.display(); | ||
- | myCar2.drive(); | ||
- | myCar2.display(); | ||
- | } | ||
- | |||
- | // Even though there are multiple objects, we still only need one class. | ||
- | // No matter how many cookies we make, only one cookie cutter is needed. | ||
- | class Car { | ||
- | color c; | ||
- | float xpos; | ||
- | float ypos; | ||
- | float xspeed; | ||
- | |||
- | // The Constructor is defined with arguments. | ||
- | Car(color tempC, float tempXpos, float tempYpos, float tempXspeed) { | ||
- | c = tempC; | ||
- | xpos = tempXpos; | ||
- | ypos = tempYpos; | ||
- | xspeed = tempXspeed; | ||
- | } | ||
- | |||
- | void display() { | ||
- | stroke(0); | ||
- | fill(c); | ||
- | rectMode(CENTER); | ||
- | rect(xpos,ypos,20,10); | ||
- | } | ||
- | |||
- | void drive() { | ||
- | xpos = xpos + xspeed; | ||
- | if (xpos > width) { | ||
- | xpos = 0; | ||
- | } | ||
- | } | ||
- | } | ||
- | |||
</code> | </code> | ||