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radar.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>MI Simulators | Online marine radar simulator</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<link rel="stylesheet" href="./css/default.css">
</head>
<body style="background-color: #FFFFFF;">
<table width="1024" height="768" table border="0" cellpadding="0" cellspacing="0">
<tr>
<td colspan="3">
<div id="header" style="text-align:center;font-size:30px;color:#263B42;">
Online radar simulator
</div>
</td>
</tr>
<tr bgcolor="#000000">
<td>
<div id="radarcanvasleft" title="Radar indicators">
<canvas id="canvasleft" width="125" height="768"></canvas>
</div>
</td>
<td>
<table width="100%" height="100%" table border="0" cellpadding="0" cellspacing="0">
<tr>
<td>
<div id="radarcanvastop" title="Radar indicators">
<canvas id="canvastop" width="668" height="86"></canvas>
</div>
</td>
</tr>
<tr>
<td>
<div id="PPIcanvas" title="Left mouse button to change cursor position">
<canvas id="canvasPPI" width="512" height="512"></canvas>
</div>
</td>
</tr>
<tr>
<td>
<div id="radarcanvasbottom" title="Radar indicators">
<canvas id="canvasbottom" width="668" height="170"></canvas>
</div>
</td>
</tr>
</table>
</td>
<td>
<div id="radarcanvasright" title="Radar controls">
<canvas id="canvasright" width="231" height="768"></canvas>
</div>
</td>
</tr>
<tr>
<td colspan="3">
<div class="footer">
Copyright 2015 MI Simulators
</div>
</td>
</tr>
</table>
<script id="shader-fs" type="x-shader/x-fragment">
precision highp float;
varying vec2 vTextureCoord;
varying vec4 vColor;
varying float vLightWeighting;
varying float dx;
varying float dy;
varying float vRange;
varying float vAngleCoef;
uniform int uFlag;
uniform sampler2D uSampler;
uniform vec3 uDirectionalColor;
uniform float uAngle0;
uniform float uAngle1;
uniform float uBrilliance;
uniform float uGain;
uniform float uTune;
uniform float uRain;
uniform float uFTC;
const float PI = 3.1415926;
float GetAngle(float dx, float dy)
{
float a = 0.0;
if (abs(dy) < 0.000001)
{
if (dx < 0.0) a = 180.0;
else a = 0.0;
} else
{
if (dy >= 0.0)
{
if (dx >= 0.0)
{
a = (atan(dx / dy) * 180.0 / PI);
} else
{
a = (atan(dx / dy) * 180.0 / PI) + 360.0;
}
} else
{
a = (atan(dx / dy) * 180.0 / PI) + 180.0;
}
}
return a;
}
void main(void) {
float gain = uGain * 2.0 * (1.0 - abs(uTune - 0.67) * 0.3);
float FTCcoef = 8.0 * (1.0 + uFTC * 4.0);
if (uFlag == 0)
{
float r = sqrt(dx * dx + dy * dy);
if (r > vRange)
{
discard;
} else
{
float a = GetAngle(dx,dy);
float coef = vAngleCoef;
//if (a < uAngle0 || a > uAngle1)
// coef = 0.75;
if (vLightWeighting <= (1.0 - gain) * 0.2 + 0.003)
{
discard;
} else
{
gl_FragColor = vec4(uDirectionalColor * vLightWeighting * coef * uBrilliance * gain * FTCcoef,1.0);
}
}
} else if (uFlag == 1)
{
float r = sqrt(dx * dx + dy * dy);
if (r > vRange)
{
discard;
} else
{
vec4 c = texture2D(uSampler,vTextureCoord);
if (c[0] == 0.0 && c[1] == 0.0 && c[2] == 0.0)
{
discard;
} else
{
gl_FragColor = c;
}
}
} else if (uFlag == 2)
{
float r = sqrt(dx * dx + dy * dy);
if (r > vRange)
{
discard;
} else
{
float a = GetAngle(dx,dy);
float coef = vAngleCoef;
//if (a < uAngle0 || a > uAngle1)
// coef = 0.75;
if (vLightWeighting <= 0.0)
{
discard;
} else
{
gl_FragColor = vec4(uDirectionalColor * vLightWeighting * gain * coef * uBrilliance * 16.0,1.0);
}
}
}
}
</script>
<script id="shader-vs" type="x-shader/x-vertex">
attribute vec3 aVertexPosition;
attribute vec3 aVertexNormal;
attribute vec2 aTextureCoord;
attribute vec4 aVertexColor;
uniform sampler2D uSampler;
uniform float uAntennaHeight;
uniform float uBeamHeight2;
uniform float uRange;
uniform float uWaveHeight;
uniform float uWindDirection;
uniform float uRotAngle;
uniform float uSea;
uniform float uAngle0;
uniform mat4 uMVMatrix;
uniform mat4 uPMatrix;
uniform mat3 uNMatrix;
uniform vec3 uLightPosition;
uniform int uFlag1;
varying vec2 vTextureCoord;
varying vec4 vColor;
varying float vLightWeighting;
varying float dx;
varying float dy;
varying float vRange;
varying float vAngleCoef;
const float PI = 3.14159265358979;
float rseed = 1558911735.0;
/*
float rand(float x, float y){
return fract(sin(x * 12.9898 + y * 78.233) * 43758.5453);
}
// from -1.0 to +1.0
float random()
{
rseed = rand(rseed,rseed / 13.0);
return (1.0 + rseed) * 0.5;
}
*/
float GetAngle(float dx, float dy)
{
float a = 0.0;
if (abs(dy) < 0.000000001)
{
if (dx < 0.0) a = 180.0;
else a = 0.0;
} else
{
if (dy >= 0.0)
{
if (dx >= 0.0)
{
a = (atan(dx / dy) * 180.0 / PI);
} else
{
a = (atan(dx / dy) * 180.0 / PI) + 360.0;
}
} else
{
a = (atan(dx / dy) * 180.0 / PI) + 180.0;
}
}
return a;
}
void main(void) {
dx = aVertexPosition[0] - uLightPosition[0];
dy = aVertexPosition[1] - uLightPosition[1];
vRange = uRange;
// normalise angle and lighting directions
float an = uAngle0 * PI / 180.0;
vec3 angleDirection = vec3(sin(an),cos(an),0.0);
// cross-product
vec3 lightDirection = normalize(vec3(dx,dy,0));
vec3 p = cross(angleDirection,lightDirection);
// angle b/w vectors
float s = dot(angleDirection,lightDirection);
float ang = acos(s) * 180.0 / PI;
// bring to 0..360
if (p[2] < 0.0) ang = 360.0 - ang;
// bring to 0..1
vAngleCoef = 0.5 + (1.0 - ang / 360.0) * 0.5;
if (uFlag1 == 0)
{
gl_Position = uPMatrix * uMVMatrix * vec4(aVertexPosition,1.0);
vec3 normal = normalize(aVertexNormal);
vLightWeighting = -dot(normal,lightDirection);
} else if (uFlag1 == 1)
{
gl_Position = uPMatrix * uMVMatrix * vec4(aVertexPosition,1.0);
vTextureCoord = aTextureCoord;
} else if (uFlag1 == 2)
{
gl_Position = uPMatrix * uMVMatrix * vec4(aVertexPosition,1.0);
vec3 normal = normalize(aVertexNormal);
// wave addition to vLightWeighting
float waveweighting = 0.0;
if (uWaveHeight > 0.0)
{
// approximate
float wavelen = uWaveHeight * 10.0;
// distance to centre
float rr = sqrt(dx * dx + dy * dy);
// random phase
//float r0 = wavelen * random();
// sine
//float s = sin((r0 + rr) * 2.0 * PI / wavelen);
// get beam angle with heading angle
float a = GetAngle(dy,dx) + uWindDirection;
// distance coef (fading from centre)
// r1 must be 4000.0 as well
float rcoef = 1.0 - rr / 4000.0;
if (rcoef < 0.0) rcoef = 0.0;
// min/max addition to dot product
float min = 0.01;
float max = 0.5 * uWaveHeight / 10.0;
waveweighting = (min + (1.0 + sin(a * PI / 180.0)) * 0.5 * max) * pow(rcoef,1.0 + uSea * 4.0);
}
vLightWeighting = -dot(normal,lightDirection) + waveweighting;
} else if (uFlag1 == 3)
{
gl_Position = uPMatrix * uMVMatrix * vec4(aVertexPosition,1.0);
float height = (uLightPosition[2] > 0.0) ? uLightPosition[2] : 10.0;
float coef = aVertexPosition[2] / height;
if (coef > 1.0) coef = 1.0;
// vec3 normal = normalize(aVertexNormal);
// vec3 lightingDirection = normalize(aVertexPosition - uLightPosition);
vLightWeighting = coef;
//gl_Position = uPMatrix * uMVMatrix * vec4(aVertexPosition,1.0);
//vec3 normal = normalize(aVertexNormal);
//vec3 lightingDirection = normalize(aVertexPosition - uLightPosition);
//vLightWeighting = 1.0;
}
}
</script>
<script type="text/javascript" src="./js/gl-matrix-min.js"></script>
<script type="text/javascript" src="./js/vectormatrix_0.js"></script>
<script type="text/javascript" src="./js/webgl-utils.js"></script>
<script type="text/javascript" src="./js/LoadVBO.js"></script>
<script type="text/javascript" src="./js/Math_1.js"></script>
<script type="text/javascript" src="./js/String_2.js"></script>
<script type="text/javascript" src="./js/PolarGrid.js"></script>
<script type="text/javascript" src="./js/Transform_1.js"></script>
<script type="text/javascript" src="./js/Geo_2.js"></script>
<script type="text/javascript" src="./js/Ship_5.js"></script>
<script type="text/javascript" src="./js/PPI_7.js"></script>
<script type="text/javascript" src="./js/CanvasObject_1.js"></script>
<script type="text/javascript">
var loadScene = (function ()
{
// important variables
var gl;
var terrainvboc = {};
var terrainvbom = {};
var wavesvbo = {};
// right panel contains buttons
var rightpanel = {};
// top panel contains indicators
var toppanel = {};
// left panel contains sliders
var leftpanel = {};
// bottom panel contains indicators
var bottompanel = {};
//===== 20-11-28
// full chart file name
var chartname = "S23W044001001";
// bitmap with whole chart
var chartfile = "./Areas/" + chartname + ".png";
// values to initialise standard chart
var latmin = -23.051659577;
var lonmin = -44.5686028633;
var latmax = -21.9442338424;
var lonmax = -42.4367334805;
// by default
var chartwidth = 800;
var chartheight = 600;
// chart with latmin,lonmin,latmax,lonmax
// and coordinate transformations
var chart = new Object();
// to redraw
var chartchanged = true;
// the same on instructor
var ichartchanged = true;
// bitmap to redraw
var chartbitmap;
// own ship
var ship = new Object();
// targets
var targets = new Array();
// chart cursor position
var cursorlat = 0.0;
var cursorlon = 0.0;
// PPI
var PPI = {};
var rangeindex = 3;
var targetselected = -1;
var key;
//===== 20-11-28
var wavestexture;
var screentexture;
var shaderProgram;
var offcanvas;
var offcontext;
// frame rate
var framespersec = 15;
var dt = 1.0 / framespersec;
// frame count
var framecount = 0;
// radar angle in degrees
var angle = 0.0;
// wind direction
var winddirection = 315.0;
// wave height in metres
var waveheight = 1.0;
// ship course and speed
var speedms = 12.0;
// lower left corner of area
var lat = 0.0;
var lon = 0.0;
// conversion from/to geodetic coordinates
var flatcoord = {};
// matrices
var mvMatrix = mat4.create();
var tempMatrix2 = mat4.create();
var tempMatrix = mat4.create();
var pMatrix = mat4.create();
var nMatrix = mat3.create();
var DRAGGING_NONE = -1;
// dragging EBL/VRM 1
var DRAGGING_EV1 = 0;
// dragging guard zone 1
var DRAGGING_GZ1 = 1;
// current dragging
var dragging = DRAGGING_NONE;
//===== this is ppi canvas =====================
mcanvas = document.getElementById('canvasPPI');
var MILE = 1852.0;
// ranges
var ranges = [0.5,1.0,2.0,4.0,8.0,16.0,32.0,64.0,128.0];
var numrings = [ 2, 4, 4, 4, 4, 4, 4, 4, 4];
//===== init ppi ==============================
if (PPI == undefined || PPI.transform == undefined)
{
PPIInit(PPI,mcanvas.width,mcanvas.height);
PPI.range = ranges[rangeindex] * MILE;
}
// radar angle increment
var dangle = PPI.beamwidth;
//===== right panel with buttons ===============
// mouse pressed?
var rmousepressed = false;
rightpanel.buttons = new Array();
rightpanel.buttons[0] = new Object();
CanvasObjectInit(rightpanel.buttons[0],OBJECT_BUTTON,"RANGE -",9,17,114,53);
rightpanel.buttons[0].onMouseDown = function(x,y)
{
if (rangeindex > 0)
{
rangeindex--;
PPI.range = ranges[rangeindex] * MILE;
SetTopIndicator(0,5,"RANGE " + ranges[rangeindex] + "nm");
if (PPI.rangerings)
{
SetTopIndicator(1,5,"RINGS " + ranges[rangeindex] / numrings[rangeindex] + "nm");
} else
{
SetTopIndicator(1,5,"");
}
if (PPI.EV1.EV > EBLVRM_OFF)
{
if (PPI.EV1.VRM == 0.0 || PPI.EV1.VRM >= PPI.range)
{
PPI.EV1.VRM = PPI.range * 0.3333333;
}
}
}
}
rightpanel.buttons[1] = new Object();
CanvasObjectInit(rightpanel.buttons[1],OBJECT_BUTTON,"RANGE +",117,17,221,53);
rightpanel.buttons[1].onMouseDown = function(x,y)
{
if (rangeindex < ranges.length - 1)
{
rangeindex++;
PPI.range = ranges[rangeindex] * MILE;
SetTopIndicator(0,5,"RANGE " + ranges[rangeindex] + "nm");
if (PPI.rangerings)
{
SetTopIndicator(1,5,"RINGS " + ranges[rangeindex] / numrings[rangeindex] + "nm");
} else
{
SetTopIndicator(1,5,"");
}
if (PPI.EV1.EV > EBLVRM_OFF)
{
if (PPI.EV1.VRM == 0.0 || PPI.EV1.VRM >= PPI.range)
{
PPI.EV1.VRM = PPI.range * 0.3333333;
}
}
}
}
rightpanel.buttons[2] = new Object();
CanvasObjectInit(rightpanel.buttons[2],OBJECT_BUTTON,"RINGS ON/OFF",9,189,114,226);
rightpanel.buttons[2].onMouseDown = function(x,y)
{
PPI.rangerings = (PPI.rangerings == RANGERINGS_ON) ? RANGERINGS_OFF : RANGERINGS_ON;
if (PPI.rangerings)
{
SetTopIndicator(1,5,"RINGS " + ranges[rangeindex] / numrings[rangeindex] + "nm");
} else
{
SetTopIndicator(1,5,"");
}
}
rightpanel.buttons[3] = new Object();
CanvasObjectInit(rightpanel.buttons[3],OBJECT_BUTTON,"SHIP SHM",117,189,221,226);
rightpanel.buttons[3].onMouseDown = function(x,y)
{
PPI.headingline = HEADINGLINE_OFF;
}
rightpanel.buttons[3].onMouseUp = function(x,y)
{
PPI.headingline = HEADINGLINE_ON;
}
rightpanel.buttons[3].onMouseLeave = function(x,y)
{
PPI.headingline = HEADINGLINE_ON;
}
rightpanel.buttons[4] = new Object();
CanvasObjectInit(rightpanel.buttons[4],OBJECT_BUTTON,"HEAD UP",9,75,78,112);
rightpanel.buttons[4].onMouseDown = function(x,y)
{
PPI.headingmode = HMODE_HUP;
SetTopIndicator(2,5,"HEAD UP");
}
rightpanel.buttons[5] = new Object();
CanvasObjectInit(rightpanel.buttons[5],OBJECT_BUTTON,"NORTH UP",81,75,149,112);
rightpanel.buttons[5].onMouseDown = function(x,y)
{
PPI.headingmode = HMODE_NUP;
SetTopIndicator(2,5,"NORTH UP");
}
rightpanel.buttons[6] = new Object();
CanvasObjectInit(rightpanel.buttons[6],OBJECT_BUTTON,"COURSE UP",152,75,221,112);
rightpanel.buttons[6].onMouseDown = function(x,y)
{
PPI.headingmode = HMODE_CUP;
SetTopIndicator(2,5,"COURSE UP");
}
rightpanel.buttons[7] = new Object();
CanvasObjectInit(rightpanel.buttons[7],OBJECT_BUTTON,"RELATIVE",9,132,114,168);
rightpanel.buttons[7].onMouseDown = function(x,y)
{
PPI.motion = MOTION_RELATIVE;
PPI.motionstartx = 0;
PPI.motionstarty = 0;
SetTopIndicator(3,5,"MOTION REL");
}
rightpanel.buttons[7].active = false;
rightpanel.buttons[8] = new Object();
CanvasObjectInit(rightpanel.buttons[8],OBJECT_BUTTON,"TRUE",117,132,221,168);
rightpanel.buttons[8].onMouseDown = function(x,y)
{
PPI.motion = MOTION_TRUE;
PPI.motionstartx = ship.x;
PPI.motionstarty = ship.y;
SetTopIndicator(3,5,"MOTION TRUE");
}
rightpanel.buttons[8].active = false;
rightpanel.buttons[9] = new Object();
CanvasObjectInit(rightpanel.buttons[9],OBJECT_BUTTON,"OFFSET",9,229,114,266);
rightpanel.buttons[9].onMouseDown = function(x,y)
{
SetTopIndicator(0,4,"OFFSET");
}
rightpanel.buttons[9].active = false;
rightpanel.buttons[10] = new Object();
CanvasObjectInit(rightpanel.buttons[10],OBJECT_BUTTON,"NO OFFSET",117,229,221,266);
rightpanel.buttons[10].onMouseDown = function(x,y)
{
SetTopIndicator(0,4,"");
}
rightpanel.buttons[10].active = false;
rightpanel.buttons[11] = new Object();
CanvasObjectInit(rightpanel.buttons[11],OBJECT_BUTTON,"SHOW/CHANGE",9,382,114,419);
rightpanel.buttons[11].onMouseDown = function(x,y)
{
if (PPI.EV1.EV == EBLVRM_OFF)
{
PPI.EV1.EV = EBLVRM_ACTIVE;
if (PPI.EV1.VRM == 0.0 || PPI.EV1.VRM >= PPI.range)
{
PPI.EV1.VRM = PPI.range * 0.3333333;
PPI.EV1.EBL = 45.0;
}
} else if (PPI.EV1.EV == EBLVRM_ACTIVE)
{
PPI.EV1.EV = EBLVRM_ON;
SetTopIndicator(1,4,"EBL/VRM");
}
}
rightpanel.buttons[12] = new Object();
CanvasObjectInit(rightpanel.buttons[12],OBJECT_BUTTON,"HIDE",117,382,221,419);
rightpanel.buttons[12].onMouseDown = function(x,y)
{
PPI.EV1.EV = EBLVRM_OFF;
StopEV1BearingRange();
SetTopIndicator(1,4,"");
}
rightpanel.buttons[13] = new Object();
CanvasObjectInit(rightpanel.buttons[13],OBJECT_BUTTON,"SHOW/CHANGE",9,439,114,475);
rightpanel.buttons[13].onMouseDown = function(x,y)
{
}
rightpanel.buttons[13].active = false;
rightpanel.buttons[14] = new Object();
CanvasObjectInit(rightpanel.buttons[14],OBJECT_BUTTON,"HIDE",117,439,221,475);
rightpanel.buttons[14].onMouseDown = function(x,y)
{
}
rightpanel.buttons[14].active = false;
rightpanel.buttons[15] = new Object();
CanvasObjectInit(rightpanel.buttons[15],OBJECT_BUTTON,"SHOW/CHANGE",9,495,114,531);
rightpanel.buttons[15].onMouseDown = function(x,y)
{
if (PPI.GZ1.GZ == GRD_OFF)
{
PPI.GZ1.GZ = GRD_ACTIVE;
if (PPI.GZ1.r2 == 0.0 || PPI.GZ1.r2 >= PPI.range)
{
PPI.GZ1.r2 = PPI.range * 0.3;
}
if (PPI.GZ1.angle == 0.0)
{
PPI.GZ1.angle = 90.0;
}
} else if (PPI.GZ1.GZ == GRD_ACTIVE)
{
PPI.GZ1.GZ = GRD_ON;
SetTopIndicator(2,4,"GRD ZONE");
}
}
rightpanel.buttons[16] = new Object();
CanvasObjectInit(rightpanel.buttons[16],OBJECT_BUTTON,"HIDE",117,495,221,531);
rightpanel.buttons[16].onMouseDown = function(x,y)
{
PPI.GZ1.GZ = GRD_OFF;
SetTopIndicator(2,4,"");
}
rightpanel.buttons[17] = new Object();
CanvasObjectInit(rightpanel.buttons[17],OBJECT_BUTTON,"EXPANSION",9,285,114,321);
rightpanel.buttons[17].onMouseDown = function(x,y)
{
if (PPI.targetexpansion == 1.0)
{
PPI.targetexpansion = 2.0;
SetTopIndicator(3,4,"TARGET EXP");
} else
{
PPI.targetexpansion = 1.0;
SetTopIndicator(3,4,"");
}
}
rightpanel.buttons[18] = new Object();
CanvasObjectInit(rightpanel.buttons[18],OBJECT_BUTTON,"INT REJ",117,285,221,321);
rightpanel.buttons[18].onMouseDown = function(x,y)
{
}
rightpanel.buttons[18].active = false;
rightpanel.buttons[19] = new Object();
CanvasObjectInit(rightpanel.buttons[19],OBJECT_BUTTON,"WAKES",9,325,114,362);
rightpanel.buttons[19].onMouseDown = function(x,y)
{
if (PPI.wakes)
{
SetTopIndicator(0,3,"");
PPI.wakes = false;
} else
{
SetTopIndicator(0,3,"WAKES");
PPI.wakes = true;
}
for (var i = 0; i < targets.length; i++)
{
TargetClearWakes(targets[i]);
}
}
rightpanel.buttons[19].active = true;
rightpanel.buttons[20] = new Object();
CanvasObjectInit(rightpanel.buttons[20],OBJECT_BUTTON,"CLEAR WAKES",117,325,221,362);
rightpanel.buttons[20].onMouseDown = function(x,y)
{
for (var i = 0; i < targets.length; i++)
{
TargetClearWakes(targets[i]);
}
}
rightpanel.buttons[20].active = true;
rightpanel.buttons[21] = new Object();
CanvasObjectInit(rightpanel.buttons[21],OBJECT_BUTTON,"ACQUIRE TARGET",9,552,114,588);
rightpanel.buttons[21].onMouseDown = function(x,y)
{
for (var i = 0; i < targets.length; i++)
{
var rect = GetPPIRect(PPI,targets[i]);
if (PPI.cursorx >= rect[0] && PPI.cursorx <= rect[2] && PPI.cursory >= rect[1] && PPI.cursory <= rect[3])
{
if (targets[i].radarstate == TARGET_FREE)
{
targets[i].radarstate = TARGET_ACQUIRE;
targets[i].acqureendtick = performance.now() + 10 * 1000;
} else if (targets[i].radarstate == TARGET_ACQUIRE)
{
targets[i].radarstate = TARGET_FREE;
targets[i].acqureendtick = -1;
}
}
}
}
rightpanel.buttons[22] = new Object();
CanvasObjectInit(rightpanel.buttons[22],OBJECT_BUTTON,"SELECT TARGET",117,552,221,588);
rightpanel.buttons[22].onMouseDown = function(x,y)
{
for (var i = 0; i < targets.length; i++)
{
var rect = GetPPIRect(PPI,targets[i]);
if (PPI.cursorx >= rect[0] && PPI.cursorx <= rect[2] && PPI.cursory >= rect[1] && PPI.cursory <= rect[3])
{
if (targets[i].radarstate == TARGET_SAFE || targets[i].radarstate == TARGET_DANGEROUS)
{
targetselected = i;
}
}
}
}
rightpanel.buttons[23] = new Object();
CanvasObjectInit(rightpanel.buttons[23],OBJECT_BUTTON,"CANCEL TARGET",9,593,114,628);
rightpanel.buttons[23].onMouseDown = function(x,y)
{
for (var i = 0; i < targets.length; i++)
{
var rect = GetPPIRect(PPI,targets[i]);
if (PPI.cursorx >= rect[0] && PPI.cursorx <= rect[2] && PPI.cursory >= rect[1] && PPI.cursory <= rect[3])
{
if (targets[i].radarstate == TARGET_ACQUIRE || targets[i].radarstate == TARGET_SAFE || targets[i].radarstate == TARGET_DANGEROUS)
{
if (targetselected == i) targetselected = -1;
targets[i].radarstate == TARGET_FREE;
}
}
}
}
rightpanel.buttons[24] = new Object();
CanvasObjectInit(rightpanel.buttons[24],OBJECT_BUTTON,"CANCEL ALL",117,593,221,628);
rightpanel.buttons[24].onMouseDown = function(x,y)
{
for (var i = 0; i < targets.length; i++)
{
targets[i].radarstate = TARGET_FREE;
}
targetselected = -1;
}
rightpanel.buttons[25] = new Object();
CanvasObjectInit(rightpanel.buttons[25],OBJECT_BUTTON,"AIS",9,649,114,685);
rightpanel.buttons[25].onMouseDown = function(x,y)
{
}
rightpanel.buttons[25].active = false;
//===== right panel ============================
// right panel onMouseDown event
rightpanel.onMouseDown = function(x,y)
{
for (var i = 0; i < rightpanel.buttons.length; i++)
{
if (x >= rightpanel.buttons[i].left &&
x <= rightpanel.buttons[i].right &&
y >= rightpanel.buttons[i].top &&
y <= rightpanel.buttons[i].bottom)
{
if (!(rightpanel.buttons[i].onMouseDown == undefined) && rightpanel.buttons[i].active)
{
rightpanel.buttons[i].onMouseDown(x,y);
break;
}
}
}
}
// right panel onMouseUp event
rightpanel.onMouseUp = function(x,y)
{
for (var i = 0; i < rightpanel.buttons.length; i++)
{
if (!(rightpanel.buttons[i].onMouseUp == undefined) && rightpanel.buttons[i].active)
{
rightpanel.buttons[i].onMouseUp(x,y);
break;
}
}
}
// right panel onMouseLeave event
rightpanel.onMouseLeave = function(x,y)
{
for (var i = 0; i < rightpanel.buttons.length; i++)
{
if (!(rightpanel.buttons[i].onMouseLeave == undefined) && rightpanel.buttons[i].active)
{
rightpanel.buttons[i].onMouseLeave(x,y);
break;
}
}
}
// mouse down handler for right panel (canvas)
function rcanvasmousedown(event)
{
var rcanvas = document.getElementById('canvasright');
var rect = rcanvas.getBoundingClientRect();
rightpanel.onMouseDown(event.clientX - rect.left,event.clientY - rect.top);
//rcanvas.setCapture(true);
rmousepressed = true;
}
// mouse up handler for right panel (canvas)
function rcanvasmouseup(event)
{
if (rmousepressed)
{
var rcanvas = document.getElementById('canvasright');
var rect = rcanvas.getBoundingClientRect();
rightpanel.onMouseUp(event.clientX - rect.left,event.clientY - rect.top);
}
rmousepressed = false;
}
// mouse leave handler for right panel (canvas)
function rcanvasmouseleave(event)
{
if (rmousepressed)
{
var rcanvas = document.getElementById('canvasright');
var rect = rcanvas.getBoundingClientRect();
rightpanel.onMouseLeave(event.clientX - rect.left,event.clientY - rect.top);
}
rmousepressed = false;
}
//===== left panel with controlled indicators
lmousepressed = false;
leftpanel.sliders = new Array();
leftpanel.sliders[0] = new Object();
CanvasObjectInit(leftpanel.sliders[0],OBJECT_HORSLIDER,"BRILLIANCE",22,33,100,45);
leftpanel.sliders[0].value = PPI.brilliance;
leftpanel.sliders[0].onMouseDown = function(x,y)
{
leftpanel.sliders[0].value = (x - leftpanel.sliders[0].left) / (leftpanel.sliders[0].right - leftpanel.sliders[0].left);
PPI.brilliance = leftpanel.sliders[0].value;
PPI.color = "#00" + byteToHex(PPI.brilliance * 255) + "00";
PPI.inactivecolor = "#00" + byteToHex(PPI.brilliance * 127) + "00";
var canvas = document.getElementById('canvasleft');
var ctx = canvas.getContext('2d');
DrawCanvasObject(leftpanel.sliders[0],ctx,"#00FF00",12);
lmousepressed = true;
}
leftpanel.sliders[0].onMouseMove = function(x,y)
{
if (lmousepressed)
{
leftpanel.sliders[0].value = (x - leftpanel.sliders[0].left) / (leftpanel.sliders[0].right - leftpanel.sliders[0].left);
PPI.brilliance = leftpanel.sliders[0].value;
PPI.color = "#00" + byteToHex(PPI.brilliance * 255) + "00";
PPI.inactivecolor = "#00" + byteToHex(PPI.brilliance * 127) + "00";
var canvas = document.getElementById('canvasleft');
var ctx = canvas.getContext('2d');
DrawCanvasObject(leftpanel.sliders[0],ctx,"#00FF00",12);
}
}
leftpanel.sliders[1] = new Object();
CanvasObjectInit(leftpanel.sliders[1],OBJECT_HORSLIDER,"GAIN",22,74,100,86);
leftpanel.sliders[1].value = PPI.gain;
leftpanel.sliders[1].onMouseDown = function(x,y)
{
leftpanel.sliders[1].value = (x - leftpanel.sliders[1].left) / (leftpanel.sliders[1].right - leftpanel.sliders[1].left);
PPI.gain = leftpanel.sliders[1].value;
var canvas = document.getElementById('canvasleft');
var ctx = canvas.getContext('2d');
DrawCanvasObject(leftpanel.sliders[1],ctx,"#00FF00",12);
lmousepressed = true;
}
leftpanel.sliders[1].onMouseMove = function(x,y)
{
if (lmousepressed)
{
leftpanel.sliders[1].value = (x - leftpanel.sliders[1].left) / (leftpanel.sliders[1].right - leftpanel.sliders[1].left);
PPI.gain = leftpanel.sliders[1].value;
var canvas = document.getElementById('canvasleft');
var ctx = canvas.getContext('2d');
DrawCanvasObject(leftpanel.sliders[1],ctx,"#00FF00",12);
}
}
leftpanel.sliders[2] = new Object();
CanvasObjectInit(leftpanel.sliders[2],OBJECT_HORSLIDER,"TUNE",22,114,100,126);
leftpanel.sliders[2].value = PPI.tune;
leftpanel.sliders[2].onMouseDown = function(x,y)
{
leftpanel.sliders[2].value = (x - leftpanel.sliders[2].left) / (leftpanel.sliders[2].right - leftpanel.sliders[2].left);
PPI.tune = leftpanel.sliders[2].value;
var canvas = document.getElementById('canvasleft');
var ctx = canvas.getContext('2d');
DrawCanvasObject(leftpanel.sliders[2],ctx,"#00FF00",12);
lmousepressed = true;
}
leftpanel.sliders[2].onMouseMove = function(x,y)
{
if (lmousepressed)
{
leftpanel.sliders[2].value = (x - leftpanel.sliders[2].left) / (leftpanel.sliders[2].right - leftpanel.sliders[2].left);
PPI.tune = leftpanel.sliders[2].value;
var canvas = document.getElementById('canvasleft');
var ctx = canvas.getContext('2d');
DrawCanvasObject(leftpanel.sliders[2],ctx,"#00FF00",12);
}
}
leftpanel.sliders[3] = new Object();
CanvasObjectInit(leftpanel.sliders[3],OBJECT_HORSLIDER,"SEA",22,155,100,167);
leftpanel.sliders[3].value = PPI.sea;
leftpanel.sliders[3].onMouseDown = function(x,y)
{
leftpanel.sliders[3].value = (x - leftpanel.sliders[3].left) / (leftpanel.sliders[3].right - leftpanel.sliders[3].left);
PPI.sea = leftpanel.sliders[3].value;
var canvas = document.getElementById('canvasleft');
var ctx = canvas.getContext('2d');
DrawCanvasObject(leftpanel.sliders[3],ctx,"#00FF00",12);
lmousepressed = true;
}
leftpanel.sliders[3].onMouseMove = function(x,y)
{
if (lmousepressed)
{