[31] | 1 | /************************************************************************************ |
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| 2 | * Copyright (C) 2008 by Politehnica University of Bucharest and Rutgers University |
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| 3 | * All rights reserved. |
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| 4 | * Refer to LICENSE for terms and conditions of use. |
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| 5 | ***********************************************************************************/ |
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| 6 | package vnsim.gui; |
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| 7 | |
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| 8 | import java.awt.geom.Point2D; |
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| 9 | import javax.media.opengl.GL; |
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| 10 | import javax.media.opengl.GLAutoDrawable; |
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| 11 | import javax.media.opengl.GLCanvas; |
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| 12 | import javax.media.opengl.GLCapabilities; |
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| 13 | import javax.media.opengl.GLEventListener; |
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| 14 | import javax.media.opengl.glu.GLU; |
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| 15 | import javax.swing.JPanel; |
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| 16 | |
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| 17 | import com.sun.opengl.util.Animator; |
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| 18 | import com.sun.opengl.util.GLUT; |
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| 19 | |
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| 20 | import vnsim.applications.trafficview.SimulatedCarInfo; |
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| 21 | import vnsim.core.CarInfo; |
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| 22 | import vnsim.map.object.Cross; |
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| 23 | import vnsim.map.object.Globals; |
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| 24 | import vnsim.map.object.Point; |
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| 25 | import vnsim.map.object.Road; |
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| 26 | import vnsim.map.utils.GPSutil; |
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| 27 | import vnsim.vehicular.simulator.intersections.DirectedRoadSegment; |
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| 28 | import vnsim.vehicular.simulator.intersections.IntersectionWithTrafficLights; |
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| 29 | |
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| 30 | public class DriverView extends JPanel implements GLEventListener { |
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| 31 | |
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| 32 | /* |
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| 33 | * NEAR VIEW Panel that contains an OpenGL canvas |
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| 34 | */ |
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| 35 | |
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| 36 | private GLCanvas canvas; |
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| 37 | |
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| 38 | private int carList, carListOut, earthList; // display |
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| 39 | |
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| 40 | // lists(only |
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| 41 | // calculated at |
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| 42 | // compilation time) |
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| 43 | private float xCamera, yCamera, zCamera, xToSee, yToSee, distanceToLook, visualField; // camera |
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| 44 | |
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| 45 | private float previosPosX, previosPosY;// old position of the |
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| 46 | // carReceivingMsg and |
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| 47 | |
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| 48 | public SimulatedCarInfo currentCar; |
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| 49 | |
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| 50 | static final long serialVersionUID = 1; |
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| 51 | |
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| 52 | /** |
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| 53 | * |
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| 54 | * @param w |
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| 55 | * @param h |
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| 56 | */ |
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| 57 | public DriverView(int w, int h) { |
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| 58 | super(); |
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| 59 | // creates an OpenGL canvas and sets it's properties |
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| 60 | GLCapabilities capabilities = new GLCapabilities(); |
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| 61 | capabilities.setHardwareAccelerated(true); |
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| 62 | capabilities.setDoubleBuffered(true); |
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| 63 | canvas = new GLCanvas(); |
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| 64 | canvas.addGLEventListener(this); |
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| 65 | canvas.setSize(w, h); |
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| 66 | canvas.setVisible(true); |
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| 67 | Animator anim = new Animator(canvas); // for animating the display |
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| 68 | this.add(canvas); // adds the canvas to the container |
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| 69 | this.setSize(w, h); |
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| 70 | anim.start(); |
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| 71 | this.previosPosX = 0; // to remember the carReceivingMsg's previous |
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| 72 | // position |
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| 73 | this.previosPosY = 0; // helps determining the direction in witch the |
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| 74 | // carReceivingMsg moves |
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| 75 | } |
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| 76 | |
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| 77 | /** |
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| 78 | * |
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| 79 | */ |
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| 80 | public void init(GLAutoDrawable glDrawable) { |
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| 81 | this.xCamera = 0.0f; // set the initial position |
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| 82 | // of the camera |
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| 83 | this.yCamera = 0.0f; |
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| 84 | this.zCamera = 20.0f; |
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| 85 | this.xToSee = 10.0f; |
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| 86 | this.yToSee = 10.0f; |
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| 87 | this.visualField = 2000.0f; |
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| 88 | this.distanceToLook = 50.0f; |
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| 89 | GL myGL = glDrawable.getGL(); // OpenGL initialization |
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| 90 | GLU myGLU = new GLU(); |
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| 91 | int width = canvas.getWidth(); |
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| 92 | int height = canvas.getHeight(); |
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| 93 | myGL.glClearColor(0.7f, 0.7f, 1.0f, 0.0f); // the ambiental color |
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| 94 | myGL.glShadeModel(GL.GL_FASTEST); |
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| 95 | myGL.glMatrixMode(GL.GL_PROJECTION); |
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| 96 | myGL.glLoadIdentity(); |
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| 97 | myGLU.gluPerspective(60.0f, (double) width / height, 0.01f, visualField); |
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| 98 | myGL.glMatrixMode(GL.GL_MODELVIEW); |
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| 99 | myGL.glLoadIdentity(); |
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| 100 | myGLU.gluLookAt(xCamera, yCamera, zCamera, xToSee, yToSee, 0.0, 0.0, 0.0, 1.0); |
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| 101 | glDrawable.setAutoSwapBufferMode(false); // i will call |
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| 102 | // swapBuffers |
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| 103 | // manualy in |
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| 104 | // display |
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| 105 | bildList(glDrawable); |
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| 106 | } |
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| 107 | |
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| 108 | /** |
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| 109 | * |
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| 110 | */ |
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| 111 | public void display(GLAutoDrawable glDrawable) { |
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| 112 | float x, y; |
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| 113 | Road currentRoad; |
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| 114 | Point currentPoint; |
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| 115 | short pt; |
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| 116 | int i; |
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| 117 | GL myGL = glDrawable.getGL(); |
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| 118 | glDrawable.swapBuffers(); |
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| 119 | myGL.glClear(GL.GL_COLOR_BUFFER_BIT); |
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| 120 | currentRoad = null; |
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| 121 | currentPoint = null; |
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| 122 | |
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| 123 | float auxx, auxy, x2, y2, sinAlfa, cosAlfa, dx, dy; |
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| 124 | pt = 0; |
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| 125 | // if i began to receive data from the gps |
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| 126 | if (Globals.demo.mv.currentCar != null) { |
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| 127 | try { |
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| 128 | // I get the current position of the carReceivingMsg on the road |
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| 129 | currentCar = Globals.demo.mv.currentCar; |
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| 130 | currentRoad = Globals.map.roads.get(currentCar.getRoadIdx()); |
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| 131 | currentPoint = (Point) currentRoad.points.get(currentCar.getPointIdx()); |
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| 132 | // I calculate the distance in meters on x and on y axis |
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| 133 | // from the point of minimum latitude and longitude |
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| 134 | y = (float) GPSutil.getMetersLatitude(Globals.map.minPoint, currentPoint); |
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| 135 | x = (float) GPSutil.getMetersLongitude(Globals.map.minPoint, currentPoint); |
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| 136 | // I use the last position and the current position to calculate |
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| 137 | // where to put the camera and in what |
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| 138 | // direction to look |
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| 139 | setCamera(glDrawable, (double) x, (double) y, (double) previosPosX, (double) previosPosY, |
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| 140 | currentRoad.laneNo, currentCar.getLane(), currentCar.getDirection()); |
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| 141 | // i draw the grass (green square in the xoy plane, centered on |
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| 142 | // the current position) |
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| 143 | myGL.glPushMatrix(); |
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| 144 | myGL.glTranslatef(x, y, -1.0f); |
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| 145 | myGL.glCallList(earthList); |
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| 146 | myGL.glPopMatrix(); |
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| 147 | /* |
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| 148 | * i = 0; while (i < currentRoad.crosses.size()) { // for every |
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| 149 | * road with witch the current road has a // cross, i draw that |
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| 150 | * road rd2 = (short) ((Cross) currentRoad.crosses .get((int) |
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| 151 | * i)).getCrossRoadIndex(); drawRoad(rd2, myGL); i++; } |
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| 152 | */ |
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| 153 | drawNearbyRoads(currentCar.getRoadIdx(), myGL); // last, i draw |
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| 154 | // the current |
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| 155 | // road |
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| 156 | // i draw the carReceivingMsg on it's current position |
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| 157 | myGL.glPushMatrix(); |
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| 158 | myGL.glTranslatef(x, y, 0.0f); |
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| 159 | myGL.glCallList(carList); |
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| 160 | myGL.glPopMatrix(); |
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| 161 | } catch (Exception e) { |
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| 162 | System.err.println("NearView Error: "); |
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| 163 | e.printStackTrace(); |
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| 164 | } |
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| 165 | // Semaphores |
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| 166 | Integer idx; |
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| 167 | IntersectionWithTrafficLights tpI; |
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| 168 | DirectedRoadSegment drS; |
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| 169 | int tempPointIdx; |
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| 170 | int laneNr; |
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| 171 | int dist = 300; |
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| 172 | for (i = 0; i < Globals.map.lightsIndices.size(); i++) { |
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| 173 | idx = Globals.map.lightsIndices.get(i); |
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| 174 | tpI = (IntersectionWithTrafficLights) Globals.map.allIntersections.get(idx.intValue()); |
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| 175 | currentRoad = (Road) Globals.map.roads.get(tpI.segments.get(0).roadIndex); |
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| 176 | currentPoint = currentRoad.points.get(tpI.segments.get(0).pointIndex); |
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| 177 | y = (float) GPSutil.getMetersLatitude(Globals.map.minPoint, currentPoint); |
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| 178 | x = (float) GPSutil.getMetersLongitude(Globals.map.minPoint, currentPoint); |
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| 179 | currentRoad = (Road) Globals.map.roads.get(Globals.demo.mv.currentCar.getRoadIdx()); |
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| 180 | currentPoint = (Point) currentRoad.points.get(Globals.demo.mv.currentCar.getPointIdx()); |
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| 181 | y2 = (float) GPSutil.getMetersLatitude(Globals.map.minPoint, currentPoint); |
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| 182 | x2 = (float) GPSutil.getMetersLongitude(Globals.map.minPoint, currentPoint); |
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| 183 | dist = (int) Math.sqrt(((x2 - x) * (x2 - x) + (y2 - y) * (y2 - y))); |
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| 184 | if (dist > 300) { |
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| 185 | continue; |
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| 186 | } |
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| 187 | for (int j = 0; j < tpI.segments.size(); j++) { |
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| 188 | drS = tpI.segments.get(j); |
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| 189 | if (drS.isExitOnly()) |
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| 190 | continue; |
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| 191 | currentRoad = (Road) Globals.map.roads.get(drS.roadIndex); |
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| 192 | laneNr = currentRoad.laneNo; |
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| 193 | if (drS.direction) { |
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| 194 | tempPointIdx = drS.pointIndex + 4; |
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| 195 | while (currentRoad.points.size() <= tempPointIdx) { |
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| 196 | tempPointIdx--; |
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| 197 | } |
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| 198 | currentPoint = (Point) currentRoad.points.get(tempPointIdx); |
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| 199 | } else { |
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| 200 | tempPointIdx = drS.pointIndex - 4; |
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| 201 | while (tempPointIdx < 0) { |
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| 202 | tempPointIdx++; |
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| 203 | } |
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| 204 | currentPoint = (Point) currentRoad.points.get(tempPointIdx); |
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| 205 | } |
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| 206 | y = (float) GPSutil.getMetersLatitude(Globals.map.minPoint, currentPoint); |
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| 207 | x = (float) GPSutil.getMetersLongitude(Globals.map.minPoint, currentPoint); |
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| 208 | currentPoint = (Point) currentRoad.points.get(drS.pointIndex); |
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| 209 | y2 = (float) GPSutil.getMetersLatitude(Globals.map.minPoint, currentPoint); |
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| 210 | x2 = (float) GPSutil.getMetersLongitude(Globals.map.minPoint, currentPoint); |
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| 211 | if ((x2 != x) || (y2 != y)) { |
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| 212 | sinAlfa = (float) ((y2 - y) / (Math.sqrt((y2 - y) * (y2 - y) + (x2 - x) * (x2 - x)))); |
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| 213 | cosAlfa = (float) ((x2 - x) / (Math.sqrt((y2 - y) * (y2 - y) + (x2 - x) * (x2 - x)))); |
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| 214 | dx = (float) (laneNr * 20 * sinAlfa); |
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| 215 | dy = (float) (laneNr * 20 * cosAlfa); |
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| 216 | x2 = dx + x; |
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| 217 | y2 = y - dy; |
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| 218 | x = x - dx; |
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| 219 | y = y + dy; |
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| 220 | int color; |
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| 221 | int timp; |
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| 222 | myGL.glPushMatrix(); |
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| 223 | timp = (int) (Globals.engine.crtTime / Globals.engine.fps); |
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| 224 | color = tpI.segments.get(j).getLightInfo().getColor((timp % tpI.cycleLength)); |
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| 225 | MyColor semaphoreColor = MyColor.chooseSemaphoreColor(color); |
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| 226 | myGL.glColor3f(semaphoreColor.getRed(), semaphoreColor.getGreen(), semaphoreColor.getBlue()); |
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| 227 | myGL.glLineWidth(4.0f); |
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| 228 | myGL.glBegin(GL.GL_LINES); |
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| 229 | { |
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| 230 | myGL.glVertex3f(x, y, 3.0f); |
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| 231 | myGL.glVertex3f(x2, y2, 3.0f); |
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| 232 | } |
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| 233 | myGL.glEnd(); |
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| 234 | myGL.glPopMatrix(); |
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| 235 | } |
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| 236 | } |
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| 237 | } |
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| 238 | |
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| 239 | // //endSemaphores |
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| 240 | // print neighbors |
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| 241 | currentCar = Globals.demo.mv.currentCar; |
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| 242 | double offset; |
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| 243 | int dir; |
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| 244 | Point p2, p; |
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| 245 | for (i = 0; i < currentCar.trafficDB.size(); i++) { |
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| 246 | CarInfo elem = (CarInfo) currentCar.trafficDB.get(i); |
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| 247 | currentRoad = (Road) Globals.map.roads.get(elem.getRoadIdx()); |
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| 248 | pt = elem.getPointIdx(); |
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| 249 | offset = elem.getOffset(); |
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| 250 | p = (Point) currentRoad.points.get(pt); |
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| 251 | y = (float) GPSutil.getMetersLatitude(Globals.map.minPoint, p); |
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| 252 | x = (float) GPSutil.getMetersLongitude(Globals.map.minPoint, p); |
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| 253 | y2 = y; |
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| 254 | x2 = x; |
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| 255 | pt++; |
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| 256 | dir = (int) elem.getDirection(); |
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| 257 | try { |
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| 258 | p2 = (Point) currentRoad.points.get(pt); |
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| 259 | y2 = (float) GPSutil.getMetersLatitude(Globals.map.minPoint, p2); |
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| 260 | x2 = (float) GPSutil.getMetersLongitude(Globals.map.minPoint, p2); |
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| 261 | if (dir == 0) { |
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| 262 | auxx = x; |
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| 263 | auxy = y; |
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| 264 | x = x2; |
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| 265 | y = y2; |
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| 266 | x2 = auxx; |
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| 267 | y2 = auxy; |
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| 268 | offset = p2.getDistance() - p.getDistance() - offset; |
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| 269 | } |
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| 270 | offset = offset * 1000; |
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| 271 | laneNr = currentRoad.laneNo; |
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| 272 | int ln = elem.getLane(); |
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| 273 | if ((x2 != x) || (y2 != y)) { |
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| 274 | sinAlfa = (float) ((y2 - y) / (Math.sqrt((y2 - y) * (y2 - y) + (x2 - x) * (x2 - x)))); |
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| 275 | cosAlfa = (float) ((x2 - x) / (Math.sqrt((y2 - y) * (y2 - y) + (x2 - x) * (x2 - x)))); |
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| 276 | x = x + (float) (cosAlfa * offset); |
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| 277 | y = y + (float) (sinAlfa * offset); |
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| 278 | dx = (float) (((laneNr + 1 - ln) * 20 - 11) * sinAlfa); |
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| 279 | dy = (float) (((laneNr + 1 - ln) * 20 - 11) * cosAlfa); |
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| 280 | x = x + dx; |
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| 281 | y = y - dy; |
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| 282 | // System.out.println("Car "+sourceRoadIdx+":"+elem+" |
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| 283 | // road:"+currentRoad+"; point "+sourcePointIdx+" gets |
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| 284 | // printed at: |
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| 285 | // x="+x+"y="+y);sourceRoadIdx++; |
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| 286 | } |
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| 287 | } catch (Exception e) { |
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| 288 | } |
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| 289 | myGL.glPushMatrix(); |
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| 290 | myGL.glTranslatef(x, y, 0.0f); |
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| 291 | myGL.glScalef(2.0f, 2.0f, 2.0f); |
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| 292 | myGL.glCallList(carList); |
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| 293 | myGL.glPopMatrix(); |
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| 294 | } |
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| 295 | } |
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| 296 | // end neighbors |
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| 297 | synchronized (Globals.mutex) { |
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| 298 | Globals.flag = 0; |
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| 299 | Globals.mutex.notify(); |
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| 300 | } |
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| 301 | } |
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| 302 | |
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| 303 | |
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| 304 | /** |
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| 305 | * |
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| 306 | * @param myGL |
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| 307 | * @param myGLU |
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| 308 | * @param myGLUT |
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| 309 | */ |
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| 310 | private void buildList_Car(GL myGL, GLU myGLU, GLUT myGLUT) { |
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| 311 | carList = myGL.glGenLists(4); |
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| 312 | myGL.glNewList(carList, GL.GL_COMPILE); |
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| 313 | { |
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| 314 | myGL.glColor3f(0.2f, 0.2f, 1.0f); |
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| 315 | myGLUT.glutSolidSphere(2.0, 10, 10); |
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| 316 | } |
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| 317 | myGL.glEndList(); |
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| 318 | } |
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| 319 | |
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| 320 | /** |
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| 321 | * The car out is a sphere. |
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| 322 | * |
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| 323 | * @param myGL |
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| 324 | * @param myGLU |
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| 325 | * @param myGLUT |
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| 326 | */ |
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| 327 | private void buildList_CarOut(GL myGL, GLU myGLU, GLUT myGLUT) { |
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| 328 | carListOut = carList + 1; |
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| 329 | myGL.glNewList(carListOut, GL.GL_COMPILE); |
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| 330 | { |
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| 331 | myGL.glColor3f(0.7f, 0.0f, 0.0f); |
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| 332 | myGLUT.glutSolidSphere(2.0f, 10, 10); |
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| 333 | } |
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| 334 | myGL.glEndList(); |
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| 335 | } |
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| 336 | |
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| 337 | /** |
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| 338 | * The grass is a green square. |
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| 339 | * |
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| 340 | * @param myGL |
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| 341 | * @param myGLU |
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| 342 | * @param myGLUT |
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| 343 | */ |
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| 344 | private void buildList_Earth(GL myGL, GLU myGLU, GLUT myGLUT) { |
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| 345 | earthList = carListOut + 1; |
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| 346 | myGL.glNewList(earthList, GL.GL_COMPILE); |
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| 347 | { |
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| 348 | // i build the "grass", a green square |
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| 349 | myGL.glColor3f(0.0f, 0.4f, 0.0f); |
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| 350 | myGL.glBegin(GL.GL_QUADS); |
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| 351 | myGL.glVertex3f(-1000.0f, -1000.0f, 0.0f); |
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| 352 | myGL.glVertex3f(1000.0f, -1000.0f, 0.0f); |
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| 353 | myGL.glVertex3f(1000.0f, 1000.0f, 0.0f); |
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| 354 | myGL.glVertex3f(-1000.0f, 1000.0f, 0.0f); |
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| 355 | myGL.glEnd(); |
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| 356 | } |
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| 357 | myGL.glEndList(); |
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| 358 | } |
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| 359 | |
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| 360 | /** |
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| 361 | * |
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| 362 | * @param glDrawable |
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| 363 | */ |
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| 364 | private void bildList(GLAutoDrawable glDrawable) { |
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| 365 | GL myGL = glDrawable.getGL(); |
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| 366 | GLUT myGLUT = new GLUT(); |
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| 367 | GLU myGLU = new GLU(); |
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| 368 | buildList_Car(myGL, myGLU, myGLUT); |
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| 369 | buildList_CarOut(myGL, myGLU, myGLUT); |
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| 370 | buildList_Earth(myGL, myGLU, myGLUT); |
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| 371 | } |
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| 372 | |
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| 373 | /** |
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| 374 | * |
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| 375 | * @param rd |
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| 376 | * @param myGL |
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| 377 | */ |
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| 378 | void drawNearbyRoads(int rd, GL myGL) { |
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| 379 | int ii, j; |
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| 380 | Road mainRoad = Globals.map.roads.get(rd); |
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| 381 | Road currentRoad; |
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| 382 | Point currentPoint; |
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| 383 | short rdIdx; |
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| 384 | ii = 0; |
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| 385 | byte[] ri; |
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| 386 | float x, y, x2, y2; |
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| 387 | while (ii <= mainRoad.crosses.size()) { |
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| 388 | // for every road with witch the current road has a cross, i |
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| 389 | // draw that road |
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| 390 | if (ii == mainRoad.crosses.size()) { |
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| 391 | currentRoad = Globals.map.roads.get(rd); |
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| 392 | } else { |
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| 393 | rdIdx = (short) ((Cross) mainRoad.crosses.get((int) ii)).getCrossRoadIndex(); |
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| 394 | currentRoad = Globals.map.roads.get(rdIdx); |
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| 395 | } |
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| 396 | ri = currentRoad.getRoadinfo(); |
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| 397 | MyColor roadColor = MyColor.chooseRoadColor(ri[1]); |
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| 398 | int laneNr = currentRoad.laneNo; |
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| 399 | y = 0.0f; |
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| 400 | x = 0.0f; |
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| 401 | j = 0; |
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| 402 | double sinAlfa, cosAlfa; |
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| 403 | if ((currentRoad.points.size() > 0) && (j == 0)) { |
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| 404 | currentPoint = (Point) currentRoad.points.get(0); |
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| 405 | y = (float) GPSutil.getMetersLatitude(Globals.map.minPoint, currentPoint); |
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| 406 | x = (float) GPSutil.getMetersLongitude(Globals.map.minPoint, currentPoint); |
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| 407 | } |
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| 408 | float dx, dy; |
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| 409 | while (j < currentRoad.points.size() - 1) { |
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| 410 | y2 = y; |
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| 411 | x2 = x; |
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| 412 | currentPoint = (Point) currentRoad.points.get(j + 1); |
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| 413 | y = (float) GPSutil.getMetersLatitude(Globals.map.minPoint, currentPoint); |
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| 414 | x = (float) GPSutil.getMetersLongitude(Globals.map.minPoint, currentPoint); |
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| 415 | currentPoint = (Point) currentRoad.points.get(j); |
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| 416 | y2 = (float) GPSutil.getMetersLatitude(Globals.map.minPoint, currentPoint); |
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| 417 | x2 = (float) GPSutil.getMetersLongitude(Globals.map.minPoint, currentPoint); |
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| 418 | sinAlfa = (y2 - y) / (Math.sqrt((y2 - y) * (y2 - y) + (x2 - x) * (x2 - x))); |
---|
| 419 | cosAlfa = (x2 - x) / (Math.sqrt((y2 - y) * (y2 - y) + (x2 - x) * (x2 - x))); |
---|
| 420 | dx = (float) (laneNr * 2 * sinAlfa); |
---|
| 421 | dy = (float) (laneNr * 2 * cosAlfa); |
---|
| 422 | |
---|
| 423 | myGL.glPushMatrix(); |
---|
| 424 | myGL.glColor3f(roadColor.getRed(), roadColor.getGreen(), roadColor.getBlue()); |
---|
| 425 | int laneWidth = 10; |
---|
| 426 | switch (currentRoad.oneWay) { |
---|
| 427 | case 0: |
---|
| 428 | myGL.glTranslatef(x, y, 0.0f); |
---|
| 429 | laneWidth = 20; |
---|
| 430 | break; |
---|
| 431 | case 1: |
---|
| 432 | myGL.glTranslatef(x - (dx / 2), y + (dy / 2), 0.0f); |
---|
| 433 | break; |
---|
| 434 | case 2: |
---|
| 435 | myGL.glTranslatef(x + (dx / 2), y - (dy / 2), 0.0f); |
---|
| 436 | break; |
---|
| 437 | } |
---|
| 438 | myGL.glBegin(GL.GL_POLYGON); |
---|
| 439 | { |
---|
| 440 | for (int ll = 0; ll < 8; ll++) { |
---|
| 441 | x2 = (float) (laneWidth * laneNr * (Math.cos((double) (45 * ll * Math.PI / 180)))); |
---|
| 442 | y2 = (float) (laneWidth * laneNr * (Math.sin((double) (45 * ll * Math.PI / 180)))); |
---|
| 443 | myGL.glVertex3f(x2, y2, 0.0f); |
---|
| 444 | } |
---|
| 445 | } |
---|
| 446 | myGL.glEnd(); |
---|
| 447 | myGL.glPopMatrix(); |
---|
| 448 | j++; |
---|
| 449 | } |
---|
| 450 | ii++; |
---|
| 451 | } |
---|
| 452 | ii = 0; |
---|
| 453 | while (ii <= mainRoad.crosses.size()) { |
---|
| 454 | // for every road with witch the current road has a cross, i |
---|
| 455 | // draw that road |
---|
| 456 | if (ii == mainRoad.crosses.size()) { |
---|
| 457 | currentRoad = Globals.map.roads.get(rd); |
---|
| 458 | } else { |
---|
| 459 | rdIdx = (short) ((Cross) mainRoad.crosses.get((int) ii)).getCrossRoadIndex(); |
---|
| 460 | currentRoad = Globals.map.roads.get(rdIdx); |
---|
| 461 | } |
---|
| 462 | ri = currentRoad.getRoadinfo(); |
---|
| 463 | MyColor roadColor = MyColor.chooseRoadColor(ri[1]); |
---|
| 464 | int laneNr = currentRoad.laneNo; |
---|
| 465 | x2 = 0; |
---|
| 466 | y2 = 0; |
---|
| 467 | j = 0; |
---|
| 468 | double sinAlfa, cosAlfa; |
---|
| 469 | if ((currentRoad.points.size() > 0) && (j == 0)) { |
---|
| 470 | currentPoint = (Point) currentRoad.points.get(0); |
---|
| 471 | y2 = (float) GPSutil.getMetersLatitude(Globals.map.minPoint, currentPoint); |
---|
| 472 | x2 = (float) GPSutil.getMetersLongitude(Globals.map.minPoint, currentPoint); |
---|
| 473 | } |
---|
| 474 | float dx, dy; |
---|
| 475 | while (j < currentRoad.points.size() - 1) { |
---|
| 476 | y = y2; |
---|
| 477 | x = x2; |
---|
| 478 | currentPoint = (Point) currentRoad.points.get(j + 1); |
---|
| 479 | y2 = (float) GPSutil.getMetersLatitude(Globals.map.minPoint, currentPoint); |
---|
| 480 | x2 = (float) GPSutil.getMetersLongitude(Globals.map.minPoint, currentPoint); |
---|
| 481 | if ((x2 != x) || (y2 != y)) { |
---|
| 482 | sinAlfa = (y2 - y) / (Math.sqrt((y2 - y) * (y2 - y) + (x2 - x) * (x2 - x))); |
---|
| 483 | cosAlfa = (x2 - x) / (Math.sqrt((y2 - y) * (y2 - y) + (x2 - x) * (x2 - x))); |
---|
| 484 | myGL.glPushMatrix(); |
---|
| 485 | myGL.glTranslatef(x, y, 0); |
---|
| 486 | myGL.glColor3f(roadColor.getRed(), roadColor.getGreen(), roadColor.getBlue()); |
---|
| 487 | myGL.glBegin(GL.GL_QUADS); |
---|
| 488 | { |
---|
| 489 | dx = (float) (laneNr * 20 * sinAlfa); |
---|
| 490 | dy = (float) (laneNr * 20 * cosAlfa); |
---|
| 491 | switch (currentRoad.oneWay) { |
---|
| 492 | case 0: |
---|
| 493 | myGL.glVertex3f(0.0f - dx, dy, 0.0f); |
---|
| 494 | myGL.glVertex3f(dx, 0.0f - dy, 0.0f); |
---|
| 495 | myGL.glVertex3f(x2 - x + dx, y2 - y - dy, 0.0f); |
---|
| 496 | myGL.glVertex3f(x2 - x - dx, y2 - y + dy, 0.0f); |
---|
| 497 | break; |
---|
| 498 | |
---|
| 499 | case 1: |
---|
| 500 | myGL.glVertex3f(0.0f, 0.0f, 0.0f); |
---|
| 501 | myGL.glVertex3f(dx, 0.0f - dy, 0.0f); |
---|
| 502 | myGL.glVertex3f(x2 - x + dx, y2 - y - dy, 0.0f); |
---|
| 503 | myGL.glVertex3f(x2 - x, y2 - y, 0.0f); |
---|
| 504 | break; |
---|
| 505 | |
---|
| 506 | case 2: |
---|
| 507 | myGL.glVertex3f(0.0f - dx, dy, 0.0f); |
---|
| 508 | myGL.glVertex3f(0.0f, 0.0f, 0.0f); |
---|
| 509 | myGL.glVertex3f(x2 - x, y2 - y, 0.0f); |
---|
| 510 | myGL.glVertex3f(x2 - x - dx, y2 - y + dy, 0.0f); |
---|
| 511 | break; |
---|
| 512 | |
---|
| 513 | } |
---|
| 514 | } |
---|
| 515 | myGL.glEnd(); |
---|
| 516 | |
---|
| 517 | myGL.glLineWidth(0.25f); |
---|
| 518 | myGL.glColor3f(0.3f, 0.3f, 0.3f); |
---|
| 519 | myGL.glBegin(GL.GL_LINES); |
---|
| 520 | { |
---|
| 521 | myGL.glVertex3f(0.0f, 0.0f, 0.0f); |
---|
| 522 | myGL.glVertex3f(x2 - x, y2 - y, 0.0f); |
---|
| 523 | for (int ln = 1; ln < laneNr; ln++) { |
---|
| 524 | dx = (float) (ln * 20 * sinAlfa); |
---|
| 525 | dy = (float) (ln * 20 * cosAlfa); |
---|
| 526 | if (j % 4 != 0) { |
---|
| 527 | myGL.glLineWidth(0.15f); |
---|
| 528 | switch (currentRoad.oneWay) { |
---|
| 529 | case 0: |
---|
| 530 | myGL.glVertex3f(0.0f - dx, dy, 0.0f); |
---|
| 531 | myGL.glVertex3f(x2 - x - dx, y2 - y + dy, 0.0f); |
---|
| 532 | myGL.glVertex3f(dx, 0.0f - dy, 0.0f); |
---|
| 533 | myGL.glVertex3f(x2 - x + dx, y2 - y - dy, 0.0f); |
---|
| 534 | break; |
---|
| 535 | |
---|
| 536 | case 1: |
---|
| 537 | myGL.glVertex3f(dx, 0.0f - dy, 0.0f); |
---|
| 538 | myGL.glVertex3f(x2 - x + dx, y2 - y - dy, 0.0f); |
---|
| 539 | break; |
---|
| 540 | |
---|
| 541 | case 2: |
---|
| 542 | myGL.glVertex3f(0.0f - dx, dy, 0.0f); |
---|
| 543 | myGL.glVertex3f(x2 - x - dx, y2 - y + dy, 0.0f); |
---|
| 544 | break; |
---|
| 545 | } |
---|
| 546 | } |
---|
| 547 | } |
---|
| 548 | dx = (float) (laneNr * 20 * sinAlfa); |
---|
| 549 | dy = (float) (laneNr * 20 * cosAlfa); |
---|
| 550 | myGL.glLineWidth(0.25f); |
---|
| 551 | switch (currentRoad.oneWay) { |
---|
| 552 | case 0: |
---|
| 553 | myGL.glVertex3f(0.0f - dx, dy, 0.0f); |
---|
| 554 | myGL.glVertex3f(x2 - x - dx, y2 - y + dy, 0.0f); |
---|
| 555 | myGL.glVertex3f(dx, 0.0f - dy, 0.0f); |
---|
| 556 | myGL.glVertex3f(x2 - x + dx, y2 - y - dy, 0.0f); |
---|
| 557 | break; |
---|
| 558 | |
---|
| 559 | case 1: |
---|
| 560 | myGL.glVertex3f(dx, 0.0f - dy, 0.0f); |
---|
| 561 | myGL.glVertex3f(x2 - x + dx, y2 - y - dy, 0.0f); |
---|
| 562 | break; |
---|
| 563 | |
---|
| 564 | case 2: |
---|
| 565 | myGL.glVertex3f(0.0f - dx, dy, 0.0f); |
---|
| 566 | myGL.glVertex3f(x2 - x - dx, y2 - y + dy, 0.0f); |
---|
| 567 | break; |
---|
| 568 | } |
---|
| 569 | } |
---|
| 570 | myGL.glEnd(); |
---|
| 571 | myGL.glPopMatrix(); |
---|
| 572 | } |
---|
| 573 | j++; |
---|
| 574 | } |
---|
| 575 | ii++; |
---|
| 576 | } |
---|
| 577 | |
---|
| 578 | } |
---|
| 579 | |
---|
| 580 | /** |
---|
| 581 | * |
---|
| 582 | * @param A |
---|
| 583 | * @param B |
---|
| 584 | * @param C |
---|
| 585 | * @return |
---|
| 586 | */ |
---|
| 587 | private Point2D.Float solve2Degree(float A, float B, float C) { |
---|
| 588 | float delta = B * B - 4 * A * C; |
---|
| 589 | return new Point2D.Float((0 - B - delta) / 2 / A, (0 - B + delta) / 2 / A); |
---|
| 590 | } |
---|
| 591 | |
---|
| 592 | /** |
---|
| 593 | * |
---|
| 594 | * @param glDrawable |
---|
| 595 | * @param xc |
---|
| 596 | * @param yc |
---|
| 597 | * @param xp |
---|
| 598 | * @param yp |
---|
| 599 | * @param laneNr |
---|
| 600 | * @param ln |
---|
| 601 | * @param dir |
---|
| 602 | */ |
---|
| 603 | public void setCamera(GLAutoDrawable glDrawable, double xc, double yc, double xp, double yp, int laneNr, int ln, int dir) { |
---|
| 604 | // i place the camera on the current postion of the carReceivingMsg and |
---|
| 605 | // i make it look in front |
---|
| 606 | double A, B, C, a, b; |
---|
| 607 | double x1, x2, y1, y2; |
---|
| 608 | GL myGL = glDrawable.getGL(); |
---|
| 609 | GLU myGLU = new GLU(); |
---|
| 610 | double dx = 0, dy = 0, cosAlfa, sinAlfa; |
---|
| 611 | if ((xc != xp) || (yc != yp)) { |
---|
| 612 | sinAlfa = (float) ((yc - yp) / (Math.sqrt((yc - yp) * (yc - yp) + (xc - xp) * (xc - xp)))); |
---|
| 613 | cosAlfa = (float) ((xc - xp) / (Math.sqrt((yc - yp) * (yc - yp) + (xc - xp) * (xc - xp)))); |
---|
| 614 | dx = (float) (((laneNr + 1 - ln) * 20 - 11) * sinAlfa); |
---|
| 615 | dy = (float) (((laneNr + 1 - ln) * 20 - 11) * cosAlfa); |
---|
| 616 | } |
---|
| 617 | xCamera = (float) xc; |
---|
| 618 | yCamera = (float) yc; |
---|
| 619 | // i calculate the point at "distanceToLook" in front of the |
---|
| 620 | // carReceivingMsg(on |
---|
| 621 | // the direction determined by the previous position and the current |
---|
| 622 | // one) |
---|
| 623 | if ((xc == xp) && (yc == yp)) { |
---|
| 624 | // nothing to do. I am in the same spot |
---|
| 625 | } else { |
---|
| 626 | // xCamera=(float)(xp+((xc-xp)/2)); |
---|
| 627 | // yCamera=(float)(yp+((yc-yp)/2)); |
---|
| 628 | if (yc == yp) { |
---|
| 629 | // simpler cases |
---|
| 630 | if (xp < xc) { |
---|
| 631 | xToSee = (float) (xc + distanceToLook); |
---|
| 632 | yToSee = (float) (yc); |
---|
| 633 | } else { |
---|
| 634 | xToSee = (float) (xc - distanceToLook); |
---|
| 635 | yToSee = (float) (yc); |
---|
| 636 | } |
---|
| 637 | } else { |
---|
| 638 | if (xc == xp) { |
---|
| 639 | if (yp < yc) { |
---|
| 640 | xToSee = (float) (xc); |
---|
| 641 | yToSee = (float) (yc + distanceToLook); |
---|
| 642 | } else { |
---|
| 643 | xToSee = (float) xc; |
---|
| 644 | yToSee = (float) (yc - distanceToLook); |
---|
| 645 | } |
---|
| 646 | } else { |
---|
| 647 | // i solve a second degree equation to determine the |
---|
| 648 | // points at distanceToLook from the current |
---|
| 649 | // position and on the right direction |
---|
| 650 | a = (yp - yc) / (xp - xc); |
---|
| 651 | b = yc - xc * a; |
---|
| 652 | A = 1 + a * a; |
---|
| 653 | B = 2 * a * b - 2 * xc - 2 * yc * a; |
---|
| 654 | C = (double) xc * xc + b * b - 2 * yc * b + yc * yc - distanceToLook * distanceToLook; |
---|
| 655 | Point2D.Float sol = solve2Degree((float) A, (float) B, (float) C); |
---|
| 656 | x1 = sol.getX(); |
---|
| 657 | x2 = sol.getY(); |
---|
| 658 | y1 = a * x1 + b; |
---|
| 659 | y2 = a * x2 + b; |
---|
| 660 | // i choose the one that is front of the carReceivingMsg |
---|
| 661 | if (((yp >= yc) && (yc >= y1) && (xp <= xc) && (xc <= x1)) |
---|
| 662 | || ((yp >= yc) && (yc >= y1) && (xp >= xc) && (xc >= x1)) |
---|
| 663 | || ((yp <= yc) && (yc <= y1) && (xp <= xc) && (xc <= x1)) |
---|
| 664 | || ((yp <= yc) && (yc <= y1) && (xp >= xc) && (xc >= x1))) { |
---|
| 665 | xToSee = (float) x1; |
---|
| 666 | yToSee = (float) y1; |
---|
| 667 | } |
---|
| 668 | if (((yp >= yc) && (yc >= y2) && (xp <= xc) && (xc <= x2)) |
---|
| 669 | || ((yp >= yc) && (yc >= y2) && (xp >= xc) && (xc >= x2)) |
---|
| 670 | || ((yp <= yc) && (yc <= y2) && (xp <= xc) && (xc <= x2)) |
---|
| 671 | || ((yp <= yc) && (yc <= y2) && (xp >= xc) && (xc >= x2))) { |
---|
| 672 | xToSee = (float) x2; |
---|
| 673 | yToSee = (float) y2; |
---|
| 674 | } |
---|
| 675 | } |
---|
| 676 | } |
---|
| 677 | previosPosX = (float) xc; // the current position is saved for the |
---|
| 678 | // next iteration |
---|
| 679 | previosPosY = (float) yc; |
---|
| 680 | // The camera needs to be tilted in front, so now the normal |
---|
| 681 | // direction of the camera should also be calculated |
---|
| 682 | float D; |
---|
| 683 | float X, Y; |
---|
| 684 | X = xToSee; |
---|
| 685 | Y = yToSee; |
---|
| 686 | xc = (double) xToSee; |
---|
| 687 | yc = (double) yToSee; |
---|
| 688 | xp = (double) previosPosX; |
---|
| 689 | yp = (double) previosPosY; |
---|
| 690 | D = (float) (zCamera * zCamera) / distanceToLook; |
---|
| 691 | if (yc == yp) { |
---|
| 692 | // simpler cases |
---|
| 693 | if (xp < xc) { |
---|
| 694 | X = (float) (xc + D); |
---|
| 695 | Y = (float) yc; |
---|
| 696 | } else { |
---|
| 697 | X = (float) (xc - D); |
---|
| 698 | Y = (float) yc; |
---|
| 699 | } |
---|
| 700 | } else { |
---|
| 701 | if (xc == xp) { |
---|
| 702 | if (yp < yc) { |
---|
| 703 | X = (float) xc; |
---|
| 704 | Y = (float) (yc + D); |
---|
| 705 | } else { |
---|
| 706 | X = (float) xc; |
---|
| 707 | Y = (float) (yc + D); |
---|
| 708 | } |
---|
| 709 | } else { |
---|
| 710 | // i solve a second degree equation to determine the |
---|
| 711 | // points at distanceToLook from the current position |
---|
| 712 | // and on the right direction |
---|
| 713 | a = (yp - yc) / (xp - xc); |
---|
| 714 | b = yc - xc * a; |
---|
| 715 | A = 1 + a * a; |
---|
| 716 | B = 2 * a * b - 2 * xc - 2 * yc * a; |
---|
| 717 | C = (double) xc * xc + b * b - 2 * yc * b + yc * yc - D * D; |
---|
| 718 | Point2D.Float sol = solve2Degree((float) A, (float) B, (float) C); |
---|
| 719 | x1 = sol.getX(); |
---|
| 720 | x2 = sol.getY(); |
---|
| 721 | y1 = a * x1 + b; |
---|
| 722 | y2 = a * x2 + b; |
---|
| 723 | // i choose the one that is front of the carReceivingMsg |
---|
| 724 | if (((yp >= yc) && (yc >= y1) && (xp <= xc) && (xc <= x1)) |
---|
| 725 | || ((yp >= yc) && (yc >= y1) && (xp >= xc) && (xc >= x1)) |
---|
| 726 | || ((yp <= yc) && (yc <= y1) && (xp <= xc) && (xc <= x1)) |
---|
| 727 | || ((yp <= yc) && (yc <= y1) && (xp >= xc) && (xc >= x1))) { |
---|
| 728 | X = (float) x1; |
---|
| 729 | Y = (float) y1; |
---|
| 730 | } |
---|
| 731 | if (((yp >= yc) && (yc >= y2) && (xp <= xc) && (xc <= x2)) |
---|
| 732 | || ((yp >= yc) && (yc >= y2) && (xp >= xc) && (xc >= x2)) |
---|
| 733 | || ((yp <= yc) && (yc <= y2) && (xp <= xc) && (xc <= x2)) |
---|
| 734 | || ((yp <= yc) && (yc <= y2) && (xp >= xc) && (xc >= x2))) { |
---|
| 735 | X = (float) x2; |
---|
| 736 | Y = (float) y2; |
---|
| 737 | } |
---|
| 738 | } |
---|
| 739 | } |
---|
| 740 | myGL.glMatrixMode(GL.GL_MODELVIEW); |
---|
| 741 | myGL.glLoadIdentity(); |
---|
| 742 | myGLU.gluLookAt(xCamera + dx, yCamera - dy, zCamera, xToSee + dx, yToSee - dy, 0.0, (float) (xToSee - X), |
---|
| 743 | (float) (yToSee - Y), zCamera); |
---|
| 744 | } |
---|
| 745 | } |
---|
| 746 | |
---|
| 747 | public void displayChanged(GLAutoDrawable arg0, boolean arg1, boolean arg2) { |
---|
| 748 | // TODO Auto-generated method stub |
---|
| 749 | |
---|
| 750 | } |
---|
| 751 | |
---|
| 752 | public void reshape(GLAutoDrawable arg0, int arg1, int arg2, int arg3, int arg4) { |
---|
| 753 | // TODO Auto-generated method stub |
---|
| 754 | |
---|
| 755 | } |
---|
| 756 | } |
---|