Viewing Program

Program Data

Program thumbnail for "{props.program.title}"

Title	Neon Racer Pre-Release!
ID	4916275308593152
Created	8 years ago, 1504213072063
Updated	8 years ago, 1504394730068
Code	//First on the top list? WHAT?!? //This is only a pre-release! :) //Press the mouse to go forward / This is a pre-release, features for the full version are: 1. Lag Free game play (Less fancy graphics though) 2. Menu 3. Difficulty (?) 4. Other suggestions? Tell me in the T&T! / println("See here for full version!\nhttps://www.khanacademy.org/computer-programming/neon-racer-full-version/4689553405444096"); var GRAVITY = 0.1; var ELASTICITY = 0.1; var DAMPING = 0.99; var FRICTION = 0.94; var car; var score = 0; var highscore = 0; var trackClr = color(255, 0, 0, 50); var particles = []; var Particle = function(x, y, xvel, yvel, clr){ this.x = x; this.y = y; this.xvel = xvel; this.yvel = yvel; this.clr = clr; this.deleted = false; this.update = function(idx){ this.deleted=true; for(var i = idx+1; i < particles.length; i++){ var p = particles[i]; var d = 1+dist(p.x, p.y, this.x, this.y); if(d<50){ this.deleted = false; } } this.x+=this.xvel; this.y+=this.yvel; }; this.display = function(idx){ for(var i = idx+1; i < particles.length; i++){ var p = particles[i]; var d = 1+dist(p.x, p.y, this.x, this.y); if(d<50){ var c = lerpColor(this.clr, p.clr, 0.5); stroke(c); strokeWeight(10/d); line(this.x, this.y, p.x, p.y); } } }; }; particles.apply = function(){ for(var i = 0; i < this.length; i++){ this[i].display(i); this[i].update(i); if(this[i].deleted){ this.splice(i, 1); } } }; particles.clear = function(){ while(this.length>0){ this.splice(0, 1); } }; particles.add = function(x, y, xvel, yvel, clr){ this.push(new Particle(x, y, xvel, yvel, clr)); }; var objects = []; objects.apply = function(x){ for(var i = this.length-1; i >= 0; i--){ this[i].display(); this[i].update(); if(this[i].deleted\|\|!this[i].canView(x)){ this.splice(i, 1); } } }; objects.clear = function(){ while(this.length>0){ this.splice(0, 1); } }; var rotateCoords = function(x, y, cx, cy, angle){ x-=cx; y-=cy; var rotX = x * cos(angle) + y * sin(angle) + cx; var rotY = y * cos(angle) - x * sin(angle) + cy; return {x: rotX, y: rotY}; }; var Line = function(x1, y1, x2, y2){ this.x1 = x1; this.y1 = y1; this.x2 = x2; this.y2 = y2; this.x = (x1+x2)/2; this.y = (y1+y2)/2; this.angle = atan2(y2-y1, x2-x1); this.length = dist(x1, y1, x2, y2); this.canKill = true; this.canView = function(x){ return this.x1>x\|\|this.x2>x; }; this.isColliding = function(ball){ var pos = rotateCoords(ball.x, ball.y, this.x, this.y, this.angle); return {collide: pos.x+ball.radius/2>this.x-this.length/2 && pos.x-ball.radius/2<this.x+this.length/2 && pos.y > this.y-ball.radius && pos.y < this.y+ball.radius, pos: pos}; }; this.applyCollide = function(ball){ var col = this.isColliding(ball); if(col.collide){ ball.falling = false; ball.onLine = true; var pos = col.pos; var vel = rotateCoords(ball.xvel, ball.yvel, 0, 0, this.angle); vel.x=FRICTION; if(pos.y<this.y){ pos.y = this.y-ball.radius; vel.y=-abs(vel.y)ELASTICITY; }else{ pos.y = this.y+ball.radius; vel.y=abs(vel.y)ELASTICITY; } pos = rotateCoords(pos.x, pos.y, this.x, this.y, -this.angle); ball.x = pos.x; ball.y = pos.y; vel = rotateCoords(vel.x, vel.y, 0, 0, -this.angle); ball.xvel = vel.x; ball.yvel = vel.y; } }; this.update = function(){}; this.display = function(){ stroke(trackClr); for(var i = 0; i <= 1; i+=0.2){ strokeWeight(5i); line(this.x1, this.y1, this.x2, this.y2); } }; }; var Arc = function(x, y, radius, angle1, angle2){ this.x = x; this.y = y; this.radius = radius; this.diameter = radius2; this.angle1 = angle1; this.angle2 = angle2; this.canKill = true; this.canView = function(x){ return this.x+this.radius>x; }; this.isColliding = function(ball){ var d = dist(this.x, this.y, ball.x, ball.y); var a = atan2(ball.y-this.y, ball.x-this.x); if(this.angle1>=0){ while(a<0){ a+=360; } } if(this.angle2<=360){ a%=(360); } return {collide: (d < this.radius+ball.radius && d > this.radius-ball.radius && a > this.angle1-ball.radius/2 && a < this.angle2+ball.radius/2), d: d, a: a}; }; this.applyCollide = function(ball){ var col = this.isColliding(ball); if(col.collide){ ball.falling = false; var d = col.d; var a = col.a; var overlap = ((this.radius+ball.radius)-d)0.05; if(d<this.radius){ ball.x = this.x+cos(a)(this.radius-ball.radius); ball.y = this.y+sin(a)(this.radius-ball.radius); ball.xvel=FRICTION; ball.yvel=FRICTION; ball.xvel-=cos(a)overlap; ball.yvel-=sin(a)overlap; }else{ ball.x = this.x+cos(a)(this.radius+ball.radius); ball.y = this.y+sin(a)(this.radius+ball.radius); ball.xvel=FRICTION; ball.yvel=FRICTION; ball.xvel+=cos(a)overlap; ball.yvel+=sin(a)overlap; } } }; this.update = function(){}; this.display = function(){ stroke(trackClr); noFill(); for(var i = 0; i <= 1; i+=0.2){ strokeWeight(5i); arc(this.x, this.y, this.diameter, this.diameter, this.angle1, this.angle2); } }; }; var Coin = function(x, y){ this.x = x; this.y = y; this.radius = 10; this.deleted = false; this.canKill = false; this.canView = function(x){ return this.x+this.radius>x; }; this.applyCollide = function(ball){ if(dist(this.x, this.y, ball.x, ball.y)<this.radius+ball.radius){ this.deleted = true; for(var i = 0; i < 10; i++){ particles.add(this.x, this.y, random(-2, 2), random(-2, 2), color(255, 255, 0)); } if(!car.dead){ score++; } } }; this.update = function(){}; this.display = function(){ noStroke(); for(var i = 0; i <= 1; i+=0.1){ fill(255, 255, 0, 50); ellipse(this.x, this.y, this.radius2i, this.radius2i); } }; }; var Ball = function(x, y, radius){ this.x = x; this.y = y; this.radius = radius; this.diameter = radius2; this.xvel = 0; this.yvel = 0; this.falling = false; this.onLine = false; this.airTime = 0; this.display = function(){ ellipse(this.x, this.y, this.diameter, this.diameter); }; this.update = function(){ this.x+=this.xvel; this.y+=this.yvel; this.yvel+=GRAVITY; this.xvel=DAMPING; this.yvel=DAMPING; this.airTime++; }; this.collide = function(){ this.falling = true; this.onLine = false; for(var i = 0; i < objects.length; i++){ objects[i].applyCollide(this); } if(!this.falling){ this.airTime=0; } }; }; var Car = function(x, y, wheelR, wheelD){ this.x = x; this.y = y; this.wheelR = wheelR; this.wheelD = wheelD; this.wheelB = new Ball(x-wheelD/2, y, wheelR); this.wheelF = new Ball(x+wheelD/2, y, wheelR); this.dead = false; this.a = 0; this.head = {x: 0, y: 0, radius: 0}; this.display = function(){ stroke(0, 255, 0, 50); fill(0); for(var i = 0; i <= 1; i+=0.2){ strokeWeight(5i); if(!this.dead){ ellipse(this.head.x, this.head.y, this.head.radius2, this.head.radius2); line(this.wheelB.x, this.wheelB.y, this.wheelF.x, this.wheelF.y); } if(i>0){ noFill(); } this.wheelB.display(); this.wheelF.display(); } }; this.die = function(){ if(!this.dead){ this.dead = true; for(var i = 0; i < 50; i++){ particles.add(this.x, this.y, random(-2, 2), random(-2, 2), color(0, 255, 0)); } } }; this.update = function(){ this.wheelB.update(); this.wheelF.update(); var cx = (this.wheelB.x+this.wheelF.x)/2; var cy = (this.wheelB.y+this.wheelF.y)/2; this.x = cx; this.y = cy; var a = atan2(this.wheelF.y-this.wheelB.y, this.wheelF.x-this.wheelB.x); this.a = a; if(!this.dead){ var d = (dist(this.wheelB.x, this.wheelB.y, this.wheelF.x, this.wheelF.y)-this.wheelD)0.9; this.wheelB.xvel+=cos(a)d; this.wheelB.yvel+=sin(a)d; this.wheelF.xvel-=cos(a)d; this.wheelF.yvel-=sin(a)d; this.wheelB.x=cx-cos(a)this.wheelD/2; this.wheelB.y=cy-sin(a)this.wheelD/2; this.wheelF.x=cx+cos(a)this.wheelD/2; this.wheelF.y=cy+sin(a)this.wheelD/2; } this.wheelB.collide(); this.wheelF.collide(); if(!this.dead){ if(mouseIsPressed){ if(!this.wheelF.falling\|\|!this.wheelB.falling){ var offset = -20; this.wheelB.xvel+=cos(a); this.wheelB.yvel+=sin(a); this.wheelF.xvel+=cos(a+offset); this.wheelF.yvel+=sin(a+offset); }else if(this.wheelB.airTime>20&&this.wheelF.airTime>20){ var speed = 0.25; this.wheelB.xvel+=cos(a+90)speed; this.wheelB.yvel+=sin(a+90)speed; this.wheelF.xvel+=cos(a-90)speed; this.wheelF.yvel+=sin(a-90)speed; } } } if(this.y>550){ this.die(); } this.head = {x: this.x+cos(this.a-90)10, y: this.y+sin(this.a-90)10, radius: 7.5}; for(var i = 0; i < objects.length; i++){ if(objects[i].canKill){ if(objects[i].isColliding(this.head).collide){ this.die(); } } } }; }; var obstacles = [ function(x){ //start line objects.push(new Line(x, 550, x+100, 550)); //arc up objects.push(new Arc(x+100, 450, 100, 0, 90)); //arc around objects.push(new Arc(x+130, 300, 100, 80, 360)); //line out objects.push(new Line(x+200, 450, x+300, 450)); objects.push(new Line(x+500, 550, x+300, 450)); for(var i = 0; i < 360; i+=20){ objects.push(new Coin(x+130+cos(i)90, 300+sin(i)90)); } return 500; }, function(x){ //start line objects.push(new Line(x, 550, x+100, 550)); //ramp up objects.push(new Line(x+180, 450, x+100, 550)); //ramp down objects.push(new Line(x+180, 450, x+300, 550)); //finish line objects.push(new Line(x+400, 550, x+300, 550)); //start arc objects.push(new Arc(x+200, 320, 100, -180, 40)); //finish arc objects.push(new Arc(x+200, 320, 100, 120, 180)); for(var i = 0; i < 360; i+=20){ objects.push(new Coin(x+200+cos(i)90, 320+sin(i)90)); } return 400; }, ]; var x = 0; var obIdx = 0; var deadTime = 0; var initGame = function(){ objects.clear(); x = 0; obIdx = 0; highscore = max(highscore, score); score = 0; for(var i = 0; i < obstacles.length; i++){ x+=obstacles[i](x); } car = new Car(50, 530, 10, 40); }; initGame(); var draw = function() { background(0); pushMatrix(); translate(width/2-car.x, 0); objects.apply(car.x-width); particles.apply(); car.display(); car.update(); popMatrix(); fill(255); textSize(20); text("Score: "+score, 20, 20); text("High Score: "+highscore, 20, 40); if(car.x>x-width){ x+=obstacles[obIdx%obstacles.length](x); obIdx++; } if(car.dead){ deadTime++; if(deadTime>200){ deadTime = 0; initGame(); } } };
Folds	31,62,63,71,72,76,77,79,82,90,91,95,97,106,108,156,183,206,218,246,248,279,377,411,418,433
Fork	false
Key	ag5zfmtoYW4tYWNhZGVteXIXCxIKU2NyYXRjaHBhZBiAgIzbuOrdCAw
Votes	188
Spin-Offs	32
Type	PJS
Width	400
Height	600
User Flagged	false
Origin Scratchpad	null
Hidden From Hotlist	false
Restricted Posting	false
By Child	false
Author Nick	Mr. JPrograms
Author Name	jprograms
Author ID	kaid_868862302296985534725580
Author Profile Access	PUBLIC

Archive Data

Added	10 months ago, 1739371674696
Updated	10 months ago, 1739371674696
Source Deleted	unknown