/*
* Copyright (c) 2013, Oskar Veerhoek
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those
* of the authors and should not be interpreted as representing official policies,
* either expressed or implied, of the FreeBSD Project.
*/
package episode_4;
import org.lwjgl.LWJGLException;
import org.lwjgl.input.Keyboard;
import org.lwjgl.input.Mouse;
import org.lwjgl.opengl.Display;
import org.lwjgl.opengl.DisplayMode;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import static org.lwjgl.opengl.GL11.*;
/**
* Shows how to use input to achieve cool results. Thanks to Azziplekkus1337 for the better way of handling the
* cool-down!
*
* @author Oskar
*/
public class InputDemo {
private static final List<Box> shapes = new ArrayList<Box>(16);
private static boolean somethingIsSelected = false;
private static long lastColourChange;
public static void main(String args[]) {
try {
Display.setDisplayMode(new DisplayMode(640, 480));
Display.setTitle("Input Demo");
Display.create();
} catch (LWJGLException e) {
e.printStackTrace();
Display.destroy();
System.exit(1);
}
shapes.add(new Box(15, 15));
shapes.add(new Box(100, 150));
glMatrixMode(GL_PROJECTION);
glOrtho(0, 640, 480, 0, 1, -1);
glMatrixMode(GL_MODELVIEW);
while (!Display.isCloseRequested()) {
glClear(GL_COLOR_BUFFER_BIT);
while (Keyboard.next()) {
if (Keyboard.getEventKey() == Keyboard.KEY_C && Keyboard.getEventKeyState()) {
shapes.add(new Box(15, 15));
}
}
if (Keyboard.isKeyDown(Keyboard.KEY_ESCAPE)) {
Display.destroy();
System.exit(0);
}
for (final Box box : shapes) {
if (Mouse.isButtonDown(0) && box.isInBounds(Mouse.getX(), 480 - Mouse.getY()) && !somethingIsSelected) {
somethingIsSelected = true;
box.selected = true;
}
if (Mouse.isButtonDown(2) && box.isInBounds(Mouse.getX(), 480 - Mouse.getY()) && !somethingIsSelected) {
if ((System.currentTimeMillis() - lastColourChange) >= 200 /* milliseconds */) {
box.randomiseColors();
lastColourChange = System.currentTimeMillis();
}
}
if (Mouse.isButtonDown(1)) {
box.selected = false;
somethingIsSelected = false;
}
if (box.selected) {
box.update(Mouse.getDX(), -Mouse.getDY());
}
box.draw();
}
Display.update();
Display.sync(60);
}
Display.destroy();
}
private static class Box {
public int x, y;
public boolean selected = false;
private float colorRed, colorBlue, colorGreen;
Box(int x, int y) {
this.x = x;
this.y = y;
Random randomGenerator = new Random();
colorRed = randomGenerator.nextFloat();
colorBlue = randomGenerator.nextFloat();
colorGreen = randomGenerator.nextFloat();
}
boolean isInBounds(int mouseX, int mouseY) {
return mouseX > x && mouseX < x + 50 && mouseY > y && mouseY < y + 50;
}
void update(int dx, int dy) {
x += dx;
y += dy;
}
void randomiseColors() {
Random randomGenerator = new Random();
colorRed = randomGenerator.nextFloat();
colorBlue = randomGenerator.nextFloat();
colorGreen = randomGenerator.nextFloat();
}
void draw() {
glColor3f(colorRed, colorGreen, colorBlue);
glBegin(GL_QUADS);
glVertex2f(x, y);
glVertex2f(x + 50, y);
glVertex2f(x + 50, y + 50);
glVertex2f(x, y + 50);
glEnd();
}
}
}