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index.html
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<html><head><meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>Simple JS Darts Demo</title>
<style>
#gameBox {
position: absolute;
top: 0;
left: 0;
width: 550;
height: 400;
background-image: url(media/beta-brd2.jpg);
white-space: nowrap;
overflow: hidden;
}
#dart {
position: absolute;
visibility:hidden;
background-image: url(media/dart-flight.gif);
left: 300;
width: 57px; height: 400px;
visible: hidden;
}
#scoreA {
position: absolute;
left: 29;
top: 135;
width: 68;
height: 155;
text-align: center;
font-size: 15;
color: rgb(255,255,255);
font-weight: bold;
overflow: hidden;
}
#power-back {
position: absolute;
visibility: hidden;
left:510;
top:130;
width: 36;
height: 150;
background-image: url(media/pbar.gif);
background-position: -36px 0px;
}
#power {
position: absolute;
visibility: hidden;
left:0;
top:0;
width: 36;
height: 150;
background-image: url(media/pbar.gif);
}
#debug {
width:300;
height:600;
overflow: auto;
}
#darts {
position: absolute;
top: 288;
left: 34;
width: 115;
height: 108;
background-image: url(media/darts.png);
}
#handCursor {
position: absolute;
top: 350;
left: 450;
width: 100;
height: 114;
background-image: url(media/hand-csr.gif);
}
#windIndicator {
position: absolute;
top: 11;
left: 481;
width: 58;
height: 58;
}
.windCell {
position: absolute;
width: 9;
height: 9;
background-image: url(media/wind.gif);
}
</style><script language="JavaScript">
var SHOW_PROGRESS_BAR = 1; // 1-zobrazuje se, 0- nezobrazuje se
var WIND_ACTIVE = 1; // 1-vitr je aktivni 0-bezvetri
var GAME_XRES = 550;
var GAME_YRES = 400;
var HAND_REF_X = 12;
var BOARD_CENTER_X = 363;
var BOARD_CENTER_Y = 201;
var BOARD_RADIUS = 154;
var OFFSET_POINT_X = 515;
var OFFSET_POINT_Y = 176;
var SEGMENT_COUNT = 20;
var SEGMENT_SIZE = Math.PI/10.0;
var SEGMENTS = [10, 21, 77, 90, 141, 154];
var SEGMENT_NAMES = ['50','25','value','tripple','value','double','out'];
var angleOffset = Math.round(-Math.atan2((BOARD_CENTER_Y-OFFSET_POINT_Y),(BOARD_CENTER_X-OFFSET_POINT_X)) * (180.0/Math.PI)+180.0);
var SCORE_VALUES = [6, 13, 4, 18, 1, 20, 5, 12, 9, 14, 11, 8, 16, 7, 19, 3, 17, 2, 15, 10, 6]; // obvodovy hodnoty
var targetAngle = 0;
var targetDelta = 0;
var targetDX = 0;
var targetDY = 0;
var segmentIndex = 0; // index vysece
var segmentType = 0; // typ policka
var segmentAngle = 0;
var segment = 0;
var totalScore = 0;
var DART_REF_X = 34;
var DART_REF_Y = 66;
var FLIGHT_ANIM_DELAY = 20;
var dartCount = 3;
var ligthOn = 0;
var CURSOR_LEFT = 193;
var CURSOR_RIGHT = 530;
var CURSOR_TOP = 350;
var CURSOR_BOTTOM = 380;
var CURSOR_HOR_STEP = 10;
var CURSOR_VER_STEP = 1;
var cursor_hor = CURSOR_HOR_STEP;
var cursor_ver = CURSOR_VER_STEP;
var CURSOR_TIMER = 50;
var hand_top = 350;
var hand_left = 450;
var cursorTimerId = 0;
var dartTimerId = 1;
var firing = 0;
var wind_angle = 0;
var wind_phase = 0;
var WIND_CELL_COUNT = 20;
var WIND_TIMER = 300;
var wind_cell_x = [WIND_CELL_COUNT];
var wind_cell_y = [WIND_CELL_COUNT];
var gameAngle = 0;
var windStrenght = 0; // <0-20>
// -----------------------------------------------------
var sprite_cellwidth = 57;
var sprite_cellheight = 400;
var sprite_cellnum = 21; // there are 14 cells in the sprite sheet
var animId;
// -----------------------------------------------------
function initWindIndicator(newAngle) {
var wi = document.getElementById('windIndicator');
for (i = 0; i < WIND_CELL_COUNT; i++) { // add cell divs to windIndicator div
var newShadow = document.createElement('div');
var divIdName = 'shadow'+i;
newShadow.setAttribute('id',divIdName);
newShadow.setAttribute('class','windCell');
wi.appendChild(newShadow);
}
for (i = 0; i < WIND_CELL_COUNT; i++) { // add cell divs to windIndicator div
var newCell = document.createElement('div');
var divIdName = 'cell'+i;
newCell.setAttribute('id',divIdName);
newCell.setAttribute('class','windCell');
wi.appendChild(newCell);
}
setWindAngle(newAngle); // prekresli wind indicator podle zvoleneho uhlu
startWindAnimation();
}
function setWindAngle(newAngle) {
wind_angle = newAngle;
var rad = newAngle * (Math.PI/180);
// rad -= Math.PI;
var rad2 = rad-Math.PI;
var radius = 23;
var cx = 29;
var cy = 29;
var sx = Math.cos(rad2)*radius + cx;
var sy = Math.sin(rad2)*radius + cy;
var step = (radius*2)/WIND_CELL_COUNT;
var stp = 0;
for (i = 0; i < WIND_CELL_COUNT; i++) {
var px = sx + Math.cos(rad)*stp;
var py = sy + Math.sin(rad)*stp;
var sh = document.getElementById('shadow' + i);
sh.style.top = Math.round(py)-4;
sh.style.left = Math.round(px)-4;
var cl = document.getElementById('cell' + i);
cl.style.top = Math.round(py)-4;
cl.style.left = Math.round(px)-4;
if ((WIND_CELL_COUNT-i) > windStrenght) {
cl.style.backgroundPosition = "-9px 0px";
} else {
cl.style.backgroundPosition = "-36px 0px";
}
stp += step;
}
}
function startWindAnimation() {
setInterval('doWindAnimation()',WIND_TIMER);
}
function doWindAnimation() {
wind_phase++;
if (wind_phase > 4) wind_phase = 0;
for (i = 0; i < windStrenght; i++) {
var state = (wind_phase + i) % 4;
var offset = -(9 + (state*9));
var cl = document.getElementById('cell' + ((WIND_CELL_COUNT-windStrenght)+i));
cl.style.backgroundPosition = offset + "px 0px";
}
}
function generateAngle() {
gameAngle = Math.round(360*Math.random());
//gameAngle = 180;
windStrenght = Math.round(15*Math.random())+5;
//windStrenght = 5;
setWindAngle(gameAngle);
}
function getWindXOffset() {
var a = gameAngle*(Math.PI/180)-Math.PI;
var xo = Math.cos(a)*windStrenght;
return Math.round(xo);
}
function getWindYOffset() {
var a = gameAngle*(Math.PI/180)-Math.PI;
var yo = Math.sin(a)*windStrenght;
return Math.round(yo);
}
function initPowerBar(xpos,ypos) {
var el = document.getElementById('power-back');
el.style.visibility = 'visible';
el.style.top = ypos;
el.style.left = xpos;
var el2 = document.getElementById('power');
el2.style.visibility = 'visible';
setPowerBarProgress(0);
}
// 0-130
function setPowerBarProgress(val) {
var el = document.getElementById('power');
// el.style.visible = 'visible';
el.style.backgroundPosition = "0px " + (-(139-val)) + "px";
el.style.top = 140-val;
el.style.height = 150 - (139-val);
}
function hidePowerBar() {
var el = document.getElementById('power-back');
el.style.visibility = 'hidden';
var el2 = document.getElementById('power');
el2.style.visibility = 'hidden';
}
function initCursor() {
hand_left = CURSOR_LEFT;
hand_top = CURSOR_TOP;
}
function moveCursor(newX,newY) {
hand_left = newX;
hand_top = newY;
var dart = document.getElementById('handCursor');
dart.style.left = hand_left;
dart.style.top = hand_top;
dart.style.visible = 'visible';
}
function doHorizontalCursorMovement() {
hand_left += cursor_hor;
if ((cursor_hor > 0) && (hand_left >= CURSOR_RIGHT)) {
// addMessage("right border hit");
hand_left = CURSOR_RIGHT;
cursor_hor *= -1;
// addMessage("cursor_hor = " + cursor_hor);
// addMessage("hand_left = " + hand_left);
}
if ((cursor_hor < 0) && (hand_left < CURSOR_LEFT)) {
// addMessage("left border hir");
hand_left = CURSOR_LEFT;
cursor_hor *= -1;
// addMessage("cursor_hor = " + cursor_hor);
// addMessage("hand_left = " + hand_left);
}
moveCursor(hand_left,hand_top);
}
function doVerticalCursorMovement() {
hand_top += cursor_ver;
if ((cursor_ver > 0) && (hand_top > CURSOR_BOTTOM)) {
hand_top = CURSOR_BOTTOM;
cursor_ver *= -1;
}
if ((cursor_ver < 0) && (hand_top < CURSOR_TOP)) {
hand_top = CURSOR_TOP;
cursor_ver *= -1;
}
if (SHOW_PROGRESS_BAR == 1) {
var prog = (hand_top - CURSOR_TOP) * (130 / (CURSOR_BOTTOM - CURSOR_TOP));
setPowerBarProgress(prog);
}
moveCursor(hand_left,hand_top);
}
function startHorizontalCursorMovement() {
initCursor();
var el = document.getElementById('handCursor');
var cx = 0;
var cy = 0;
el.style.backgroundPosition = cx + "px " + cy + "px";
cursorTimerId = setInterval('doHorizontalCursorMovement()',CURSOR_TIMER);
}
function stopHorizontalCursorMovement() {
clearInterval(cursorTimerId);
}
function startVerticalCursorMovement() {
if (firing == 0) {
stopHorizontalCursorMovement();
cursorTimerId = setInterval('doVerticalCursorMovement()',CURSOR_TIMER);
firing = 1;
if (SHOW_PROGRESS_BAR == 1) {
initPowerBar(510,130);
}
}
}
function stopVerticalCursorMovement() {
firing = 0;
clearInterval(cursorTimerId);
var fireY = 360 - (hand_top - CURSOR_TOP) * ((BOARD_RADIUS * 2 + 20)/ 30) - DART_REF_Y;
if (WIND_ACTIVE == 1) {
fireDart((hand_left - DART_REF_X + HAND_REF_X) + getWindXOffset()*4, fireY + getWindYOffset()*4);
} else {
fireDart(hand_left - DART_REF_X + HAND_REF_X, fireY);
}
// fire Dart
initCursor();
var el = document.getElementById('handCursor');
var cx = -100;
var cy = 0;
el.style.backgroundPosition = cx + "px " + cy + "px";
if (SHOW_PROGRESS_BAR == 1) {
hidePowerBar();
}
setTimeout('startHorizontalCursorMovement()',500);
}
function mouseHandler(evt ){
// create cross-browser event detector:
var node = (evt.target) ? evt.target : ((evt.srcElement)?evt.srcElement : null );
evt = (evt) ? evt : ((event) ? event : null);
// create mouse coordinates objects:
xpo = evt.clientX;
ypo = evt.clientY;
// post all coordinates to the status bar while the mouse is moving:
window.status= "X-coordinate is: " + (xpo-350) + " Y-coordinate is: " + (ypo-150) ;
var rx = xpo-350;
var ry = ypo-150;
computeHit(rx,ry);
var bonus = 'policko = ' + SEGMENT_NAMES[segmentType] + ' + hodnota = ' + SCORE_VALUES[segment];
var m = 'segment type: ' + segmentType + ', segment index: ' + segmentIndex + ', cnt: ' + segment;
generateScore();
var mmx = xpo-350;
var mmy = ypo-150;
//dartCount--;
//if (dartCount == 0) dartCount = 3;
//renderIndicator();
// fireDart(mmx - DART_REF_X, mmy - DART_REF_Y);
}
function fireDart(tarX, tarY) {
var dart = document.getElementById('dart');
dart.style.left = tarX;
dart.style.top = tarY;
dart.style.visibility = 'visible';
computeHit(tarX + DART_REF_X,tarY + DART_REF_Y);
var bonus = 'policko = ' + SEGMENT_NAMES[segmentType] + ' + hodnota = ' + SCORE_VALUES[segment];
var m = 'segment type: ' + segmentType + ', segment index: ' + segmentIndex + ', cnt: ' + segment;
generateScore();
addScoreA(totalScore);
dartCount--;
if (dartCount == 0) {
generateAngle();
dartCount = 3;
}
renderIndicator();
doFlightAnim(0);
}
function generateScore() {
if (SEGMENT_NAMES[segmentType] == 'out') {
totalScore = 0; // mimo herni pole
} else
if (SEGMENT_NAMES[segmentType] == '50') {
totalScore = 50; // cisty stred
} else {
if (SEGMENT_NAMES[segmentType] == '25') {
totalScore = 25; // sirsi stred
} else {
totalScore = SCORE_VALUES[segment];
if (SEGMENT_NAMES[segmentType] == 'double') totalScore *= 2; // vnejsi okraj - double
if (SEGMENT_NAMES[segmentType] == 'tripple') totalScore *= 3; // prostredni pole - tripple
}
}
}
function computeHit(xpos,ypos) {
var dx = BOARD_CENTER_X - xpos;
var dy = BOARD_CENTER_Y - ypos;
// var angle = Math.atan2(dx,dy)-angleOffset*2;
var angle = Math.atan2(dy,dx);
var delta = Math.sqrt(dx*dx+dy*dy);
var sg = 0;
for (i = 0; i < 6; i++) {
if (delta > SEGMENTS[i])
sg = i+1;
}
segmentType = sg;
segmentIndex = Math.round(-angle * (180.0/Math.PI)+180.0);
segment = Math.round((segmentIndex) / (360.0/SEGMENT_COUNT));
}
function addScoreA(msg) {
var ni = document.getElementById('scoreA');
var newpar = document.createElement('i');
newpar.innerHTML = '' + msg + '<br>';
ni.appendChild(newpar);
var objDiv = document.getElementById("scoreA");
objDiv.scrollTop = objDiv.scrollHeight;
}
function showcell(x, y, id) {
var el = document.getElementById(id);
// the cx and cy are negative because we are shifting the left top corner
var cx = -(x * sprite_cellwidth);
var cy = -(y * sprite_cellheight);
el.style.backgroundPosition = cx + "px " + cy + "px";
}
function doFlightAnim(step) {
// Stop the last animation
dartTimerId = clearTimeout(animId);
if (step <= 20) {
showcell(step, 0, 'dart');
dartTimerId = setTimeout('doFlightAnim(' + (step + 1) + ');', FLIGHT_ANIM_DELAY);
}
}
function startDartIndicator() {
setInterval('renderDartIndicator()', 150);
}
function renderDartIndicator() {
var width = dartCount * 35;
var width2 = (dartCount-1) * 35;
var drt = document.getElementById('darts');
if (ligthOn == 0) {
drt.style.width = width;
ligthOn = 1;
} else {
drt.style.width = width2;
ligthOn = 0;
}
}
function renderIndicator() {
var width = dartCount * 35;
var drt = document.getElementById('darts');
drt.style.width = width;
}
</script></head>
<body onmouseup="mouseHandler(event)" onload="startHorizontalCursorMovement();initPowerBar(10,10);hidePowerBar();initWindIndicator(45);generateAngle()" onkeydown="startVerticalCursorMovement()" onkeyup="stopVerticalCursorMovement()">
<div id="gameBox"><div id="windIndicator"><div id="shadow0" class="windCell" style="top: 16px; left: 46px;"></div><div id="shadow1" class="windCell" style="top: 17px; left: 44px;"></div><div id="shadow2" class="windCell" style="top: 18px; left: 42px;"></div><div id="shadow3" class="windCell" style="top: 19px; left: 40px;"></div><div id="shadow4" class="windCell" style="top: 20px; left: 38px;"></div><div id="shadow5" class="windCell" style="top: 21px; left: 36px;"></div><div id="shadow6" class="windCell" style="top: 21px; left: 33px;"></div><div id="shadow7" class="windCell" style="top: 22px; left: 31px;"></div><div id="shadow8" class="windCell" style="top: 23px; left: 29px;"></div><div id="shadow9" class="windCell" style="top: 24px; left: 27px;"></div><div id="shadow10" class="windCell" style="top: 25px; left: 25px;"></div><div id="shadow11" class="windCell" style="top: 26px; left: 23px;"></div><div id="shadow12" class="windCell" style="top: 27px; left: 21px;"></div><div id="shadow13" class="windCell" style="top: 28px; left: 19px;"></div><div id="shadow14" class="windCell" style="top: 29px; left: 17px;"></div><div id="shadow15" class="windCell" style="top: 29px; left: 14px;"></div><div id="shadow16" class="windCell" style="top: 30px; left: 12px;"></div><div id="shadow17" class="windCell" style="top: 31px; left: 10px;"></div><div id="shadow18" class="windCell" style="top: 32px; left: 8px;"></div><div id="shadow19" class="windCell" style="top: 33px; left: 6px;"></div><div id="cell0" class="windCell" style="top: 16px; left: 46px; background-position: -9px 0px;"></div><div id="cell1" class="windCell" style="top: 17px; left: 44px; background-position: -9px 0px;"></div><div id="cell2" class="windCell" style="top: 18px; left: 42px; background-position: -9px 0px;"></div><div id="cell3" class="windCell" style="top: 19px; left: 40px; background-position: -9px 0px;"></div><div id="cell4" class="windCell" style="top: 20px; left: 38px; background-position: -9px 0px;"></div><div id="cell5" class="windCell" style="top: 21px; left: 36px; background-position: -18px 0px;"></div><div id="cell6" class="windCell" style="top: 21px; left: 33px; background-position: -27px 0px;"></div><div id="cell7" class="windCell" style="top: 22px; left: 31px; background-position: -36px 0px;"></div><div id="cell8" class="windCell" style="top: 23px; left: 29px; background-position: -9px 0px;"></div><div id="cell9" class="windCell" style="top: 24px; left: 27px; background-position: -18px 0px;"></div><div id="cell10" class="windCell" style="top: 25px; left: 25px; background-position: -27px 0px;"></div><div id="cell11" class="windCell" style="top: 26px; left: 23px; background-position: -36px 0px;"></div><div id="cell12" class="windCell" style="top: 27px; left: 21px; background-position: -9px 0px;"></div><div id="cell13" class="windCell" style="top: 28px; left: 19px; background-position: -18px 0px;"></div><div id="cell14" class="windCell" style="top: 29px; left: 17px; background-position: -27px 0px;"></div><div id="cell15" class="windCell" style="top: 29px; left: 14px; background-position: -36px 0px;"></div><div id="cell16" class="windCell" style="top: 30px; left: 12px; background-position: -9px 0px;"></div><div id="cell17" class="windCell" style="top: 31px; left: 10px; background-position: -18px 0px;"></div><div id="cell18" class="windCell" style="top: 32px; left: 8px; background-position: -27px 0px;"></div><div id="cell19" class="windCell" style="top: 33px; left: 6px; background-position: -36px 0px;"></div></div><div id="darts"></div><div id="power-back" style="visibility: hidden; top: 10px; left: 10px;"><div id="power" style="visibility: hidden; background-position: 0px -139px; top: 140px; height: 11px;"></div></div><div id="handCursor" style="background-position: 0px 0px; left: 380px; top: 350px;"></div><div id="scoreA"></div><div id="dart"> </div></div>
</body></html>