/
Track.js
216 lines (192 loc) · 7.09 KB
/
Track.js
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const TRACK_W = 150;
const TRACK_H = 150;
const TRACK_GAP = 2;
const TRACK_COLS = 20;
const TRACK_ROWS = 15;
/*var levelOne = [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
6, 0, 0, 0, 10, 0, 0, 0, 0, 0, 0, 0, 0,10, 0, 0, 0, 7, 4, 6,
6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 8, 6,
6, 0, 0, 4, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 0, 0, 0, 7, 4, 6,
6, 0, 0, 4, 7, 4, 4, 4, 4, 4, 4, 4, 4, 5, 0, 0, 0, 5, 8, 6,
6, 0, 0, 5, 4, 5, 5, 4, 8, 4, 4, 4, 4, 5, 0, 0, 0, 4, 4, 6,
6, 0, 9, 5, 4, 4, 5, 4, 4, 4, 4, 5, 8, 5, 0, 0, 0, 4, 7, 6,
6, 0, 0, 5, 8, 4, 4, 5, 4, 4, 8, 7, 4, 5, 0, 9, 0, 8, 4, 6,
6, 0, 0, 5, 4, 4, 4, 4, 5, 5, 4, 4, 5, 5, 0, 0, 0, 8, 4, 6,
6, 0, 0, 5, 4, 4, 4, 4, 4, 4, 5, 5, 4, 5, 0, 0, 0, 4, 5, 6,
6, 2, 0, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 4, 4, 6,
6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 0, 0, 0, 7, 4, 6,
3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 8, 6,
3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 0, 0, 4, 7, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6];*/
// var levelOne = [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
// 6, 0, 10, 0, 0, 0, 0, 0, 10, 0, 0, 0, 0, 9, 0, 0, 0, 0, 8, 6,
// 6, 0, 0, 6, 6, 6, 6, 6, 6, 6, 6, 0, 0, 0, 0, 0, 0, 0, 7, 6,
// 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 6, 4, 7, 0, 0, 8, 6,
// 6, 0, 0, 4, 4, 8, 4, 7, 0, 0, 6, 8, 4, 6, 8, 4, 0, 0, 4, 6,
// 6, 6, 6, 5, 5, 5, 5, 5, 0, 0, 5, 4, 7, 6, 7, 0, 0, 6, 6, 6,
// 6, 0, 9, 0, 0, 0, 0, 0, 0, 0, 5, 5, 8, 6, 4, 0, 0, 10, 0, 6,
// 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 7, 4, 6, 4, 0, 0, 0, 0, 6,
// 6, 0, 0, 6, 6, 5, 5, 5, 5, 5, 5, 4, 8, 6, 6, 6, 6, 7, 0, 6,
// 6, 0, 10, 0, 4, 4, 7, 8, 5, 7, 5, 4, 4, 6, 0, 0, 0, 4, 0, 6,
// 6, 0, 0, 0, 4, 4, 4, 4, 5, 8, 4, 8, 4, 6, 0, 0, 0, 0, 0, 6,
// 6, 6, 6, 6, 6, 6, 0, 0, 6, 7, 7, 4, 4, 6, 0, 0, 6, 6, 6, 6,
// 3, 0, 0, 0, 0, 9, 0, 0, 0, 4, 4, 4, 8, 6, 0, 9, 0, 0, 0, 2,
// 3, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 7, 8, 6, 0, 10, 0, 0, 0, 0,
// 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6]; //this is level two
var trackGrid = [];
const TRACK_ROAD = 0;
const TRACK_WALL = 1;
const TRACK_PLAYERSTART = 2;
const TRACK_GOAL = 3;
const TRACK_DIRT = 4;
const TRACK_BOULDER = 5;
const TRACK_OBELISK = 6;
const TRACK_DIRT_VEGE = 7;
const TRACK_DIRT_MEAT = 8;
const TRACK_GROUND_VEGE = 9;
const TRACK_GROUND_MEAT = 10;
const passableTiles = [
TRACK_ROAD,
TRACK_DIRT,
TRACK_GOAL,
TRACK_DIRT_VEGE,
TRACK_DIRT_MEAT,
TRACK_GROUND_VEGE,
TRACK_GROUND_MEAT
];
var animTileOscillatorFrame = 0;
function trackTypeIsPassable(checkTrackType)
{
for (var i = 0; i < passableTiles.length; i++) {
if(checkTrackType == passableTiles[i]) {
return true;
}
} // check each passable tile
return false;
} // end trackTypeIsPassable
function returnTileTypeAtColRow(col, row) {
if(col >= 0 && col < TRACK_COLS &&
row >= 0 && row < TRACK_ROWS) {
var trackIndexUnderCoord = rowColToArrayIndex(col, row);
return trackGrid[trackIndexUnderCoord]
} else {
return TRACK_WALL;
}
}
function rowColToArrayIndex(col, row) {
return col + TRACK_COLS * row;
}
function drawTracks() {
animTileOscillatorFrame++;
var arrayIndex = 0;
var drawTileX = 0;
var drawTileY = 0;
for(var eachRow=0;eachRow<TRACK_ROWS;eachRow++) {
for(var eachCol=0;eachCol<TRACK_COLS;eachCol++) {
var tileKindHere = trackGrid[arrayIndex];
var useImg = trackPics[tileKindHere];
if (tileVisible(drawTileX,drawTileY)) {
if (!useImg)
console.log("Missing trackPics[" + tileKindHere + "] in drawTracks!");
else{
if(tileKindHere == TRACK_GROUND_MEAT || tileKindHere == TRACK_GROUND_VEGE ){
canvasContext.drawImage(trackPics[TRACK_ROAD],drawTileX,drawTileY);
canvasContext.drawImage(useImg, (Math.floor(animTileOscillatorFrame)%1 )*TRACK_W,0,TRACK_W,TRACK_H, drawTileX,drawTileY,TRACK_W,TRACK_H);
}
else if(tileKindHere == TRACK_DIRT_MEAT || tileKindHere == TRACK_DIRT_VEGE ){
canvasContext.drawImage(trackPics[TRACK_DIRT],drawTileX,drawTileY);
canvasContext.drawImage(useImg, (Math.floor(animTileOscillatorFrame )%1)*TRACK_W,0,TRACK_W,TRACK_H, drawTileX,drawTileY,TRACK_W,TRACK_H);
}
else{
canvasContext.drawImage(useImg,drawTileX,drawTileY);
}
}
}
drawTileX += TRACK_W;
arrayIndex++;
} // end of for each col
drawTileY += TRACK_H;
drawTileX = 0;
} // end of for each row
} // end of drawTracks func
function tileVisible(tx,ty) {
//console.log("tileVisible "+tx+","+ty+" must be inside " + camPanX+","+camPanY+" and "+camPanX+canvas.width+","+camPanY+canvas.height);
return (
(tx >= camPanX -TRACK_W) &&
(ty >= camPanY - TRACK_H) &&
(tx <= camPanX+canvas.width) &&
(ty <= camPanY+canvas.height));
}
function carTrackHandling(whichCar) {
var carTrackCol = Math.floor(whichCar.x / TRACK_W);
var carTrackRow = Math.floor(whichCar.y / TRACK_H);
var trackIndexUnderCar = rowColToArrayIndex(carTrackCol, carTrackRow);
if(carTrackCol >= 0 && carTrackCol < TRACK_COLS &&
carTrackRow >= 0 && carTrackRow < TRACK_ROWS) {
var tileHere = returnTileTypeAtColRow( carTrackCol,carTrackRow );
if(trackTypeIsPassable(tileHere)){
if(tileHere == TRACK_GOAL) {
level++;
if(level > levels.length - 1){
level = 0;
winState = true;
isDrivingMode = false;
isKitchenMode = false;
}
else {
loadTrack(levels[level]);
}
}
if(tileHere == TRACK_DIRT_MEAT) {
trackGrid[trackIndexUnderCar] = TRACK_DIRT;
var currentFrameIndex = meatAmountSprite.getFrameIndex();
if (currentFrameIndex == 11) {
return;
}
meatAmountSprite.setFrameIndex(currentFrameIndex + 1);
}
if(tileHere == TRACK_DIRT_VEGE) {
trackGrid[trackIndexUnderCar] = TRACK_DIRT;
var currentFrameIndex = vegAmountSprite.getFrameIndex();
if (currentFrameIndex == 11) {
return;
}
vegAmountSprite.setFrameIndex(currentFrameIndex + 1);
}
if(tileHere == TRACK_GROUND_MEAT) {
trackGrid[trackIndexUnderCar] = TRACK_ROAD;
var currentFrameIndex = meatAmountSprite.getFrameIndex();
if (currentFrameIndex == 11) {
return;
}
meatAmountSprite.setFrameIndex(currentFrameIndex + 1);
}
if(tileHere == TRACK_GROUND_VEGE) {
trackGrid[trackIndexUnderCar] = TRACK_ROAD;
var currentFrameIndex = vegAmountSprite.getFrameIndex();
if (currentFrameIndex == 11) {
return;
}
vegAmountSprite.setFrameIndex(currentFrameIndex + 1);
}
whichCar.friction = getFrictionForTileType(tileHere);
}
else{
// next two lines added to fix a bug, mentioned in video 9.6
// undoes the car movement which got it onto the wall
whichCar.x -= Math.cos(whichCar.ang) * whichCar.speed;
whichCar.y -= Math.sin(whichCar.ang) * whichCar.speed;
whichCar.speed *= -0.5;
} // end of track found
} // end of valid col and row
} // end of carTrackHandling func
function getFrictionForTileType(tileKindHere) {
switch(tileKindHere) {
case TRACK_DIRT:
case TRACK_DIRT_MEAT:
case TRACK_DIRT_VEGE:
return TRACK_FRICTION_DIRT;
default:
return TRACK_FRICTION_NORMAL;
}
}