// Helene Martin, CSE 142
// Displays a car drawn in different positions and
// at different scales.

// Comments in parentheses are notes to students.

import java.awt.*; // (to use Graphics, Color)

public class Car {
	public static void main(String[] args) {
		DrawingPanel panel = new DrawingPanel(600, 200);
		panel.setBackground(Color.LIGHT_GRAY);
		Graphics g = panel.getGraphics();
		
		drawCar(g, 10, 30, 100);
		drawCar(g, 150, 10, 50);
		
		for(int i = 0; i < 10; i++) {
			drawCar(g, 10 + 40 * i, 100, 30);
		}
	}
	
	// Draws a black car with red wheels and a blue windshield
	// (ALWAYS start with a figure without parameters!)
	public static void drawCarInitial(Graphics g) {
		// (When multiple shapes are drawn in sequence, the last
		// ones drawn are visible)
		g.setColor(Color.BLACK);
		g.fillRect(10, 30, 100, 50);
		
		g.setColor(Color.RED);
		g.fillOval(20, 70, 20, 20);
		g.fillOval(80, 70, 20, 20);
		
		g.setColor(Color.CYAN);
		g.fillRect(80, 40, 30, 20);	
	}
	
	// Draws a black car with red wheels and a blue windshield
	// (x, y) is the coordinate of the top left corner of the black body
	// (Translation is easier than scaling - start with that)
	public static void drawCarTranslate(Graphics g, int x, int y) {
		g.setColor(Color.BLACK);
		g.fillRect(x, y, 100, 50);  // (translation affects x and y coordinates only
											 // and always involves + or -)
		g.setColor(Color.RED);
		g.fillOval(x + 10, y + 40, 20, 20); // (the first wheel is 10 pixels in from left edge of the body)
		g.fillOval(x + 70, y + 40, 20, 20);
		
		g.setColor(Color.CYAN);
		g.fillRect(x + 70, y + 10, 30, 20);	
	}
	
	// Draws a black car with red wheels and a blue windshield
	// (x, y) is the coordinate of the top left corner of the black body
	// size is the width of the black body
	
	// (scaling is hard and affects the translation factor -- do it last)
	public static void drawCar(Graphics g, int x, int y, int size) {
		g.setColor(Color.BLACK);
		g.fillRect(x, y, size, size / 2);  // (scaling always involves * or /)
		
		g.setColor(Color.RED);
		// scaling affects width and height AND translation
		g.fillOval(x + size / 10, y + size * 4 / 10, size / 5, size / 5);
		g.fillOval(x + size * 7 / 10, y + size * 4 / 10, size / 5, size / 5);
		
		g.setColor(Color.CYAN);
		g.fillRect(x + size * 7 / 10, y + size / 10, size * 3 / 10, size / 5);
	}
}