Import java.Awt.Color;
/**
* Класс, описывающий треугольник
*/
public class Triangle {
protected int xA, xB, xC, yA, yB, yC;
protected Color bgColor = new Color (255, 255, 255);
protected Color color = new Color (0, 0, 0);
public int getXA() {
return xA;
}
public int getXB() {
return xB;
}
public int getXC() {
return xC;
}
public int getYA() {
return yA;
}
public int getYB() {
return yB;
}
public int getYC() {
return yC;
}
public Color getBgColor() {
return bgColor;
}
public Color getColor() {
return color;
}
/**
* Построение треугольника по трем точкам
* @param xA
* @param yA
* @param xB
* @param yB
* @param xC
* @param yC
* @param bgColor
* @param borderColor
*/
public Triangle(int xA, int yA, int xB, int yB, int xC, int yC, Color bgColor, Color borderColor) {
super();
this.xA = xA;
this.xB = xB;
this.xC = xC;
this.yA = yA;
this.yB = yB;
this.yC = yC;
if (borderColor != null) this.color = borderColor;
if (bgColor != null) this.bgColor = bgColor;
System.out.println("Рисуем треугольник с координатами точек:");
System.out.println(" A(" + xA + ", " + yA + "),");
System.out.println(" B(" + xB + ", " + yB + "),");
System.out.println(" C(" + xC + ", " + yC + ").");
}
/**
* Move Figure to new position with NO change others parameters
* @param dX - Horizontal delta
* @param dY - Vertical delta
*/
public void transfer (int dX, int dY) {
this.xA += dX;
this.xB += dX;
this.xC += dX;
this.yA += dY;
this.yB += dY;
this.yC += dY;
System.out.println("Новые координаты треугольника:");
System.out.println(" A(" + xA + ", " + yA + "),");
System.out.println(" B(" + xB + ", " + yB + "),");
System.out.println(" C(" + xC + ", " + yC + ").");
}
public void reDraw (int xA, int yA, int xB, int yB, int xC, int yC, Color bgColor, Color borderColor) {
this.xA = xA;
this.xB = xB;
this.xC = xC;
this.yA = yA;
this.yB = yB;
this.yC = yC;
if (borderColor != null) this.color = borderColor;
if (bgColor != null) this.bgColor = bgColor;
System.out.println("Рисуем треугольник с координатами точек:");
System.out.println(" A(" + xA + ", " + yA + "),");
System.out.println(" B(" + xB + ", " + yB + "),");
System.out.println(" C(" + xC + ", " + yC + ").");
}
}
И, наконец, четырехугольник. Четырехугольник также лучше строить по его четырем точкам. Реализация класса «Quadrangle.java» следующая:
Import java.Awt.Color;
/**
* Класс, описывающий четырехугольник
*/
public class Quadrangle {
protected int xA, xB, xC, xD, yA, yB, yC, yD;
protected Color bgColor = new Color (255, 255, 255);
protected Color color = new Color (0, 0, 0);
public int getXA() {
return xA;
}
public int getXB() {
return xB;
}
public int getXC() {
return xC;
}
public int getXD() {
return xD;
}
public int getYA() { return yA; }
public int getYB() { return yB; }
public int getYC() { return yC; }
public int getYD() {
return yD;
}
public Color getBgColor() {
return bgColor;
}
public Color getColor() {
return color;
}
/**
* Построение четырехугольника по 4-м точкам
* @param xA
* @param yA
* @param xB
* @param yB
* @param xC
* @param yC
* @param xD
* @param yD
* @param bgColor
* @param borderColor
*/
public Quadrangle(int xA, int yA, int xB, int yB, int xC, int yC, int xD, int yD, Color bgColor, Color borderColor) {
super();
this.xA = xA;
this.xB = xB;
this.xC = xC;
this.xD = xD;
this.yA = yA;
this.yB = yB;
this.yC = yC;
this.yD = yD;
if (borderColor != null) this.color = borderColor;
if (bgColor != null) this.bgColor = bgColor;
System.out.println("Рисуем четырехугольник с координатами точек:");
System.out.println(" A(" + xA + ", " + yA + "),");
System.out.println(" B(" + xB + ", " + yB + "),");
System.out.println(" C(" + xC + ", " + yC + "),");
System.out.println(" D(" + xD + ", " + yD + ").");
}
/**
* Move Figure to new position with NO change others parameters
* @param dX - Horizontal delta
* @param dY - Vertical delta
*/
public void transfer (int dX, int dY) {
this.xA += dX;
this.xB += dX;
this.xC += dX;
this.xD += dX;
this.yA += dY;
this.yB += dY;
this.yC += dY;
this.yD += dY;
System.out.println("Новые координаты треугольника:");
System.out.println(" A(" + xA + ", " + yA + "),");
System.out.println(" B(" + xB + ", " + yB + "),");
System.out.println(" C(" + xC + ", " + yC + "),");
System.out.println(" D(" + xD + ", " + yD + ").");
}
public void reDraw (int xA, int yA, int xB, int yB, int xC, int yC, int xD, int yD, Color bgColor, Color borderColor) {
this.xA = xA;
this.xB = xB;
this.xC = xC;
this.yA = yA;
this.yB = yB;
this.yC = yC;
if (borderColor != null) this.color = borderColor;
if (bgColor != null) this.bgColor = bgColor;
System.out.println("Рисуем четырехугольник с координатами точек:");
System.out.println(" A(" + xA + ", " + yA + "),");
System.out.println(" B(" + xB + ", " + yB + "),");
System.out.println(" C(" + xC + ", " + yC + "),");
System.out.println(" D(" + xD + ", " + yD + ").");
}
}