File indexing completed on 2024-04-28 15:07:50

 /* GCompris - football.js
  *
  * SPDX-FileCopyrightText: 2014 Bruno Coudoin
  *
  * Authors:
  *   Bruno Coudoin <bruno.coudoin@gcompris.net> (GTK+ version)
  *   Bruno Coudoin <bruno.coudoin@gcompris.net> (Qt Quick port)
  *   Bharath M S <brat.197@gmail.com> (Qt Quick port)
  *
  *   SPDX-License-Identifier: GPL-3.0-or-later
  */
 .pragma library
 .import QtQuick 2.12 as Quick
 .import GCompris 1.0 as GCompris
 .import "qrc:/gcompris/src/core/core.js" as Core
 
 var url = "qrc:/gcompris/src/activities/football/resource/"
 
 var numberOfLevel = 8
 var items
 var flag = 0
 var friction = 0.995
 var velocityX
 var velocityY
 var tuxCollision
 
 function start(items_) {
     items = items_
     items.currentLevel = Core.getInitialLevel(numberOfLevel)
     initLevel()
 }
 
 function stop() {
     items.timer.stop();
 }
 
 function initLevel() {
     items.ball.x = items.border.width * 0.2
     items.ball.y = items.border.height / 2 - items.ball.height / 2
     velocityX = 0
     velocityY = 0
     tuxCollision = false
     /* Increase size of TUX for each level */
     items.tux.sourceSize.height = 10 * (5 + 2 * items.bar.level) * GCompris.ApplicationInfo.ratio
     moveTux(items.background.height)
 }
 
 function nextLevel() {
     items.currentLevel = Core.getNextLevel(items.currentLevel, numberOfLevel)
     initLevel();
 }
 
 function previousLevel() {
     items.currentLevel = Core.getPreviousLevel(items.currentLevel, numberOfLevel);
     initLevel();
 }
 
 function startMotion(x1, y1) {
     var velocity = Math.sqrt(Math.pow(x1, 2) +
                           Math.pow(y1, 2))
     velocity = Math.min(10, velocity * 0.5)
     /* Modify speed of ball here */
     velocityX = velocity * x1 * 0.01 * -1 / 5
     velocityY = velocity * y1 * 0.01 * -1 / 5
     tuxCollision = false
     items.timer.start()
 }
 
 /* Calculates the angle between the two points */
 function getAngle(sx1, sy1, sx2, sy2)
 {
         var dy, slope, angle;
         var dx = sx2 - sx1;
         if (dx === 0)
             return 0;
         dy = sy2 - sy1;
         slope = dy / dx;
         angle = Math.atan(slope) * 180 / Math.PI;
 
         if (dy < 0 && dx < 0){
             return angle;
         }
         else if (dy >= 0 && dx >= 0){
             return angle + 180;
         }
         else if (dy < 0 && dx >= 0){
             return angle + 180;
         }
         else if (dy >= 0 && dx < 0){
             return angle;
         }
         else
             return 0;
     }
 
 /* Draw a line dynamically to display the drag */
 function drawLine(x1, y1, x2, y2){
     items.line.height = 5
     items.line.rotation = getAngle(x1, y1, x2, y2);
     items.line.width = Math.sqrt(Math.pow((x1 - x2), 2) + Math.pow((y1- y2), 2));
     items.line.x = x2
     items.line.y = y2
 }
 
 /* Tux moves up and down, called in initlevel() */
 function moveTux(height){
     items.moveUp.to = 0
     items.moveDown.to = items.background.height * 0.75 - items.tux.height
     items.moveTux.restart()
 }
 
 
 function ballMotion() {
     items.ball.x += velocityX
     items.ball.y += velocityY
 
     if(items.ball.y > (items.border.height - items.ball.height)) { //bottom
         velocityY *= -1
         items.ball.y = items.border.height - items.ball.height
         tuxCollision = false
     } else if(items.ball.x > (items.border.width)) { //right ---- GOAL!
         velocityX *= 0
         velocityY *= 0
         items.ball.x = items.border.width// - items.ball.width
         items.bonus.good("smiley")
     } else if(items.ball.x < 0) { // left
         velocityX *= -1
         items.ball.x = 0
         tuxCollision = false
     } else if(items.ball.y < 0) { //top
         velocityY *= -1
         items.ball.y = 0
         tuxCollision = false
     }
     /* Collision with TUX */
     else if(items.ball.y > items.tux.y &&
             items.ball.y <= items.tux.y + items.tux.height/2 &&
             items.ball.x > items.tux.x &&
             items.ball.x <= items.tux.x + items.tux.width/2 &&
             !tuxCollision) {
         velocityY *= -2
         velocityX *= -2
         tuxCollision = true
         items.audioEffects.play("qrc:/gcompris/src/core/resource/sounds/brick.wav")
     }
 
     // Friction
     velocityX *= friction
     velocityY *= friction
 
     // Ball stop
     if(Math.abs(velocityX) < 0.2 && Math.abs(velocityY) < 0.2) {
         velocityX = 0
         velocityY = 0
         items.timer.stop()
     }
 }