Tetris: Difference between revisions
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Even Tetris can be implemented with JSXGraph. | Even Tetris can be implemented with JSXGraph. | ||
<html> | |||
<script type="text/javascript"> | |||
/* <![CDATA[ */ | |||
var started = false; | |||
var board = JXG.JSXGraph.initBoard('jxgbox', {originX: 0, originY: 500, unitX: 25, unitY: 25, showCopyright:false, showNavigation:false}); // Spielfeld 10x20 | |||
var board2 = JXG.JSXGraph.initBoard('jxgbox2', {originX: 0, originY: 125, unitX: 25, unitY: 25, showCopyright:false, showNavigation:false}); | |||
var usedPolys = new Array(10); | |||
var i,j; | |||
for(i=0;i<10;i++) { | |||
usedPolys[i] = new Array(20); | |||
for(j=0;j<20;j++) { | |||
usedPolys[i][j] = 0; | |||
} | |||
} | |||
var colors = ['none','#DC143C','#FF8C00','#87CEEB','#FFD700','#4B0082','#0000CD','#32CD32']; | |||
function drawPointsAndPolys(board,width,height,vorschau) { | |||
var i,j,pArr = {}; | |||
board.suspendUpdate(); | |||
for(i=0;i<=width;i++) { | |||
for(j=0; j<=height;j++) { | |||
pArr[i+''+j] = board.createElement('point',[i,j],{withLabel:false,face:'plus',draft:true}); | |||
} | |||
} | |||
for(i=0;i<width;i++) { | |||
for(j=0; j<height;j++) { | |||
var idpoly = 'poly_'+i+'_'+j; | |||
if(vorschau) { | |||
idpoly = 'poly_'+i+'_'+j+'_v'; | |||
} | |||
var poly = board.createElement('polygon', | |||
[pArr[i+''+j], pArr[(i+1)+''+j], pArr[(i+1)+''+(j+1)], pArr[i+''+(j+1)]], | |||
{fillColor:'white',visible:false,id:idpoly}); | |||
for(k=0;k<4;k++) { | |||
poly.borders[k].setProperty('strokeColor:#666666'); | |||
} | |||
} | |||
} | |||
board.unsuspendUpdate(); | |||
return pArr; | |||
} | |||
function shape(style) { | |||
if(style == 1) { // I | |||
return {face:[[1,1,1,1],[0,0,0,0],[0,0,0,0],[0,0,0,0]],size:4}; | |||
} | |||
else if(style == 2) { // T | |||
return {face:[[2,0,0],[2,2,0],[2,0,0]],size:3}; | |||
} | |||
else if(style == 3) { // O | |||
return {face:[[3,3],[3,3]],size:2}; | |||
} | |||
else if(style == 4) { // L | |||
return {face:[[4,4,4],[4,0,0],[0,0,0]],size:3}; | |||
} | |||
else if(style == 5) { // J | |||
return {face:[[5,0,0],[5,5,5],[0,0,0]],size:3}; | |||
} | |||
else if(style == 6) { // S | |||
return {face:[[6,0,0],[6,6,0],[0,6,0]],size:3}; | |||
} | |||
else if(style == 7) { // Z | |||
return {face:[[0,7,0],[7,7,0],[7,0,0]],size:3}; | |||
} | |||
} | |||
function compareWithAbsoluteShape(s,posX,posY) { | |||
for(i=0;i<s.size;i++) { | |||
for(j=0;j<s.size;j++) { | |||
if(s.face[i][j] != 0) { | |||
if(i+posX < 0 || i+posX > 9) { | |||
return false; | |||
} | |||
if(j+posY < 0 || j+posY > 19) { | |||
return false; | |||
} | |||
if(usedPolys[i+posX][j+posY] == 1) { | |||
return false; | |||
} | |||
} | |||
} | |||
} | |||
return true; | |||
} | |||
function drawShape(s,posX,posY) { | |||
board.suspendUpdate(); | |||
var i,j; | |||
for(i=0;i<s.size;i++) { | |||
for(j=0;j<s.size;j++) { | |||
if(s.face[i][j] != 0) { | |||
showCube(i+posX,j+posY,colors[s.face[i][j]]); | |||
usedPolys[i+posX][j+posY] = 1; | |||
} | |||
} | |||
} | |||
board.unsuspendUpdate(); | |||
return {shape:s,x:posX,y:posY}; | |||
} | |||
function removeShape(s,posX,posY) { | |||
board.suspendUpdate(); | |||
var i,j, shape = new Array(); | |||
for(i=0;i<s.size;i++) { | |||
for(j=0;j<s.size;j++) { | |||
if(s.face[i][j] != 0) { | |||
hideCube(i+posX,j+posY); | |||
usedPolys[i+posX][j+posY] = 0; | |||
} | |||
} | |||
} | |||
board.unsuspendUpdate(); | |||
return {shape:s,x:posX,y:posY}; | |||
} | |||
function drawVorschauShape(s,posX,posY) { | |||
board2.suspendUpdate(); | |||
var i,j; | |||
for(i=0;i<s.size;i++) { | |||
for(j=0;j<s.size;j++) { | |||
if(s.face[i][j] != 0) { | |||
showCubeV(i+posX,j+posY,colors[s.face[i][j]]); | |||
} | |||
} | |||
} | |||
board2.unsuspendUpdate(); | |||
} | |||
function clearVorschau() { | |||
for(i=0;i<5;i++) { | |||
for(j=0;j<5;j++) { | |||
hideCubeV(i,j); | |||
} | |||
} | |||
} | |||
function showCube(posX,posY,color) { | |||
board.objects['poly_'+posX+'_'+posY].setProperty('visible:true'); | |||
board.objects['poly_'+posX+'_'+posY].setProperty('fillColor:'+color); | |||
} | |||
function hideCube(posX,posY) { | |||
board.objects['poly_'+posX+'_'+posY].setProperty('visible:false'); | |||
} | |||
function showCubeV(posX,posY,color) { | |||
board2.objects['poly_'+posX+'_'+posY+'_v'].setProperty('visible:true'); | |||
board2.objects['poly_'+posX+'_'+posY+'_v'].setProperty('fillColor:'+color); | |||
} | |||
function hideCubeV(posX,posY) { | |||
board2.objects['poly_'+posX+'_'+posY+'_v'].setProperty('visible:false'); | |||
} | |||
function rotate(shape) { // gegen den Uhrzeigersinn drehen | |||
if(shape.size == 2) { | |||
shape.face = [[shape.face[0][1],shape.face[1][1]], | |||
[shape.face[0][0],shape.face[1][1]]]; | |||
} | |||
else if(shape.size == 3) { | |||
shape.face = [[shape.face[0][2],shape.face[1][2],shape.face[2][2]], | |||
[shape.face[0][1],shape.face[1][1],shape.face[2][1]], | |||
[shape.face[0][0],shape.face[1][0],shape.face[2][0]]]; | |||
} | |||
else if(shape.size == 4) { | |||
shape.face = [[shape.face[0][3],shape.face[1][3],shape.face[2][3],shape.face[3][3]], | |||
[shape.face[0][2],shape.face[1][2],shape.face[2][2],shape.face[3][2]], | |||
[shape.face[0][1],shape.face[1][1],shape.face[2][1],shape.face[3][1]], | |||
[shape.face[0][0],shape.face[1][0],shape.face[2][0],shape.face[3][0]]]; | |||
} | |||
return shape; | |||
} | |||
function getRandom() { | |||
return parseInt(1+Math.random()*7); | |||
} | |||
function testLine(i) { | |||
var j; | |||
for(j=0; j<10; j++) { | |||
if(usedPolys[j][i] == 0) { | |||
return false; | |||
} | |||
} | |||
return true; | |||
} | |||
function testLines() { | |||
var i, arr = new Array(); | |||
for(i=0; i<20; i++) { | |||
if(testLine(i)) { | |||
arr.push(i); | |||
} | |||
} | |||
return arr; | |||
} | |||
/* doesn't work properly */ | |||
function removeLines() { | |||
var arr = testLines(),i,j,k, line; | |||
if(arr.length > 0) { | |||
board.suspendUpdate(); | |||
if(arr.length == 1) { | |||
score += (level+1)*40; | |||
} | |||
else if(arr.length == 2) { | |||
score += (level+1)*100; | |||
} | |||
else if(arr.length == 3) { | |||
score += (level+1)*300; | |||
} | |||
else if(arr.length == 4) { | |||
score += (level+1)*1200; | |||
} | |||
scoreNode.innerHTML = score; | |||
for(i=0;i<arr.length;i++) { | |||
line = arr[i]; | |||
for(j=line+1-i;j<20;j++) { | |||
for(k=0;k<10;k++) { | |||
if(usedPolys[k][j] == 1) { | |||
showCube(k,j-1,board.objects['poly_'+k+'_'+j].visProp['fillColor']); | |||
usedPolys[k][j-1] = 1; | |||
hideCube(k,j); | |||
usedPolys[k][j] = 0; | |||
} | |||
else { | |||
hideCube(k,j-1); | |||
usedPolys[k][j-1] = 0; | |||
} | |||
} | |||
} | |||
} | |||
board.unsuspendUpdate(); | |||
} | |||
} | |||
function keyDown(Evt) { | |||
var code; | |||
if (!Evt) { | |||
Evt = window.event; | |||
} | |||
if (Evt.which) { | |||
code = Evt.which; | |||
} else if (Evt.keyCode) { | |||
code = Evt.keyCode; | |||
} | |||
// 37: left, 38: up, 39: right, 40: down | |||
if (code==38) { | |||
removeShape(curShape.shape,curShape.x,curShape.y); | |||
// echte Kopie anlegen... | |||
var s = {}; | |||
s.size = curShape.shape.size; | |||
s.face = (new Array()).concat(curShape.shape.face); | |||
if(compareWithAbsoluteShape(rotate(s),curShape.x,curShape.y)) { | |||
curShape = drawShape(rotate(curShape.shape),curShape.x,curShape.y); | |||
} | |||
else { | |||
curShape = drawShape(curShape.shape,curShape.x,curShape.y); | |||
} | |||
return false; | |||
} | |||
else if(code==39) { | |||
removeShape(curShape.shape,curShape.x,curShape.y); | |||
if(compareWithAbsoluteShape(curShape.shape,curShape.x+1,curShape.y)) { | |||
curShape = drawShape(curShape.shape,curShape.x+1,curShape.y); | |||
} | |||
else { | |||
curShape = drawShape(curShape.shape,curShape.x,curShape.y); | |||
} | |||
return false; | |||
} | |||
else if(code==37) { | |||
removeShape(curShape.shape,curShape.x,curShape.y); | |||
if(compareWithAbsoluteShape(curShape.shape,curShape.x-1,curShape.y)) { | |||
curShape = drawShape(curShape.shape,curShape.x-1,curShape.y); | |||
} | |||
else { | |||
curShape = drawShape(curShape.shape,curShape.x,curShape.y); | |||
} | |||
return false; | |||
} | |||
else if(code==40) { | |||
removeShape(curShape.shape,curShape.x,curShape.y); | |||
if(compareWithAbsoluteShape(curShape.shape,curShape.x,curShape.y-1)) { | |||
curShape = drawShape(curShape.shape,curShape.x,curShape.y-1); | |||
score += (level + 1); | |||
scoreNode.innerHTML = score; | |||
} | |||
else { | |||
curShape = drawShape(curShape.shape,curShape.x,curShape.y); | |||
} | |||
return false; | |||
} | |||
else if(code==32) { // Space | |||
if(curShape.y > 0) { | |||
removeShape(curShape.shape,curShape.x,curShape.y); | |||
var i=curShape.y-1; | |||
var min = curShape.y; | |||
while(i>=0) { | |||
if(compareWithAbsoluteShape(curShape.shape,curShape.x,i)) { | |||
min = i | |||
} | |||
else { | |||
i=0; | |||
} | |||
i--; | |||
} | |||
score += (level + 1)*(curShape.y-min); | |||
scoreNode.innerHTML = score; | |||
curShape = drawShape(curShape.shape,curShape.x,min); | |||
} | |||
} | |||
return true; | |||
} | |||
function gameOver() { | |||
for(i=0;i<10; i++) { | |||
if(usedPolys[i][18] == 1) { | |||
return true; | |||
} | |||
} | |||
return false; | |||
} | |||
function goDownByTime() { | |||
removeShape(curShape.shape,curShape.x,curShape.y); | |||
if(compareWithAbsoluteShape(curShape.shape,curShape.x,curShape.y-1)) { | |||
curShape = drawShape(curShape.shape,curShape.x,curShape.y-1); | |||
setTimeout(goDownByTime,timeOutTimes[level]); | |||
} | |||
else { | |||
curShape = drawShape(curShape.shape,curShape.x,curShape.y); | |||
document.getElementById('score').innerHTML | |||
if(!gameOver()) { | |||
removeLines(); | |||
if(compareWithAbsoluteShape(shape(next),4,16)) { | |||
curShape = drawShape(shape(next),4,16); | |||
next = getRandom(); | |||
clearVorschau(); | |||
drawVorschauShape(shape(next),1,1); | |||
setTimeout(goDownByTime,timeOutTimes[level]); | |||
} | |||
else { | |||
curShape = drawShape(shape(next),4,16); | |||
alert("Game Over!"); | |||
} | |||
} | |||
else { | |||
alert("Game Over!"); | |||
} | |||
} | |||
} | |||
function levelUp() { | |||
if(level < 15) { | |||
level += 1; | |||
document.getElementById('level').innerHTML = level; | |||
setTimeout(levelUp,1000*30); | |||
} | |||
} | |||
var pArray = drawPointsAndPolys(board,10,20,false); | |||
drawPointsAndPolys(board2,5,5,true); | |||
var score = 0; | |||
var scoreNode = document.getElementById('score'); | |||
var level = 1; | |||
var timeOutTimes = [2000,1000,900,800,700,600,500,400,350,300,250,200,150,100,50,25] | |||
var curShape; | |||
var next; | |||
function startTetris() { | |||
if(!started) { | |||
started = true; | |||
curShape = drawShape(shape(getRandom()),4,16); | |||
next = getRandom(); | |||
drawVorschauShape(shape(next),1,1); | |||
document.onkeydown = keyDown; | |||
setTimeout(goDownByTime,timeOutTimes[level]); | |||
setTimeout(levelUp,1000*30); | |||
} | |||
} | |||
/* ]]> */ | |||
</script> | |||
</html> |
Revision as of 12:39, 1 September 2010
Even Tetris can be implemented with JSXGraph.