From 03eb576e946ae4f28162da0c8c14beb9f6dbed1b Mon Sep 17 00:00:00 2001
From: zm343 <2639-zm343@users.noreply.gitlab.cci.drexel.edu>
Date: Sat, 17 Aug 2024 06:15:44 +0000
Subject: [PATCH] game.js update(addFood & moveOneStep)
---
src/game/game.js | 179 +++++++++++++++++++++++++++++++++++------------
1 file changed, 133 insertions(+), 46 deletions(-)
diff --git a/src/game/game.js b/src/game/game.js
index 85c3ea4..d33f57a 100644
--- a/src/game/game.js
+++ b/src/game/game.js
@@ -1,15 +1,52 @@
+const cellTypes = {
+ EMPTY: 0,
+ PLAYERHEAD: 1,
+ PLAYERBODY: 2,
+ FOOD: 3,
+};
+
+function createCell(x, y, type) {
+ return {
+ x: x,
+ y: y,
+ type: type,
+ pid: 0,
+ direction: 0,
+ next: null,
+ };
+}
+
+function getRandomInt(max) {
+ return Math.floor(Math.random() * max);
+}
+
+function addFood(gameBoard) {
+ //Find all the empty spaces on the grid
+ let emptySpaces = [];
+ for (let row of gameBoard) {
+ for (let cell of row) {
+ if (cell.type === cellTypes.EMPTY) {
+ emptySpaces.push(cell);
+ }
+ }
+ }
+
+ //Create food cells randomly
+ if (emptySpaces.length > 0) {
+ let randomCell = emptySpaces[getRandomInt(emptySpaces.length)];
+ randomCell.type = cellTypes.FOOD;
+ }
+
+ return gameBoard;
+}
+
module.exports = {
- cellTypes: {
- EMPTY: 0,
- PLAYERHEAD: 1,
- PLAYERBODY: 2,
- FOOD: 3,
- },
+ cellTypes,
createGameBoard: (width, height) => {
let gameBoard = [];
for (var i = 0; i < height; i++) {
- row = [];
+ let row = [];
for (var j = 0; j < width; j++) {
row.push(createCell(j, i, cellTypes.EMPTY));
}
@@ -18,58 +55,108 @@ module.exports = {
for (var i = 0; i < 10; i++) {
gameBoard = addFood(gameBoard);
}
- return gameBoard;
- },
-
- addFood: (gameBoard) => {
- // select a random cell that is empty
- // set the cell to FOOD
+ //console.log(gameBoard);
return gameBoard;
},
addPlayer: (gameBoard, pid) => {
- let x = getRandomInt(gameBoard[0].length);
- let y = getRandomInt(gameBoard.length);
-
- gameBoard[y][x].type = cellTypes.PLAYERHEAD;
- gameBoard[y][x].pid = pid;
- gameBoard[y][x].direction = 0;
+ let placedCell = false;
+ while (!placedCell) {
+ let x = getRandomInt(gameBoard[0].length);
+ let y = getRandomInt(gameBoard.length);
- let y2 = y - 1;
- gameBoard[y2][x].type = cellTypes.PLAYERBODY;
- gameBoard[y2][x].pid = pid;
- gameBoard[y2][x].direction = 0;
- gameBoard[y][x].next = gameBoard[y2][x];
+ if (gameBoard[y][x].type === cellTypes.EMPTY) {
+ gameBoard[y][x].type = cellTypes.PLAYERHEAD;
+ gameBoard[y][x].pid = pid;
+ gameBoard[y][x].direction = 0;
+ let y2 = y - 1;
+ if (y2 >= 0 && gameBoard[y2][x].type === cellTypes.EMPTY) {
+ gameBoard[y2][x].type = cellTypes.PLAYERBODY;
+ gameBoard[y2][x].pid = pid;
+ gameBoard[y2][x].direction = 0;
+ gameBoard[y][x].next = gameBoard[y2][x];
+ }
+ placedCell = true;
+ }
+ }
+ //console.log(gameBoard);
return gameBoard;
},
moveOneStep: (gameBoard) => {
- // Loop through board until we find a PLAYERHEAD
- // Move the head in the direction it is facing
- // if the head has a next, move the next to the head's old position
- // if the next has a next, move the next's next to the next's old position
- // and so on
- // return the new gameBoard
+ //Loop through board until we find a PLAYERHEAD
+ for (var i = 0; i < gameBoard.length; i++) {
+ for (var j = 0; j < gameBoard[i].length; j++) {
+ let cell = gameBoard[i][j];
+ if (cell.type === cellTypes.PLAYERHEAD) {
+ let oldX = cell.x;
+ let oldY = cell.y;
+ let newX = oldX;
+ let newY = oldY;
+
+ //New position based on direction
+ if (cell.direction === 0) { // Up
+ newY -= 1;
+ } else if (cell.direction === 1) { // Right
+ newX += 1;
+ } else if (cell.direction === 2) { // Down
+ newY += 1;
+ } else if (cell.direction === 3) { // Left
+ newX -= 1;
+ }
+
+ //Continue if within bounds
+ if (newX >= 0 && newX < gameBoard[0].length && newY >= 0 && newY < gameBoard.length) {
+
+ //Snake head to new position by updating cell object
+ gameBoard[newY][newX] = {
+ ...cell,
+ x: newX,
+ y: newY,
+ };
+
+ //Remove previous head position
+ gameBoard[oldY][oldX].type = cellTypes.EMPTY;
+ gameBoard[oldY][oldX].pid = 0;
+ gameBoard[oldY][oldX].direction = 0;
+ gameBoard[oldY][oldX].next = null;
+
+ //Snake body to previous locations
+ let currentBody = gameBoard[newY][newX].next;
+ while (currentBody) {
+ let bodyOldX = currentBody.x;
+ let bodyOldY = currentBody.y;
+ currentBody.x = oldX;
+ currentBody.y = oldY;
+
+ //Update cell body position
+ gameBoard[oldY][oldX] = {
+ ...currentBody,
+ type: cellTypes.PLAYERBODY,
+ };
+ oldX = bodyOldX;
+ oldY = bodyOldY;
+ currentBody = currentBody.next;
+ }
+
+ //Remove previous body position
+ gameBoard[oldY][oldX].type = cellTypes.EMPTY;
+ gameBoard[oldY][oldX].pid = 0;
+ gameBoard[oldY][oldX].direction = 0;
+ gameBoard[oldY][oldX].next = null;
+
+ //console.log(gameBoard);
+ return gameBoard;
+ }
+ }
+ }
+ }
+ return gameBoard;
},
- checkColissions: (gameBoard) => {
+ checkCollisions: (gameBoard) => {
// returns a list of players that have collided,
// and a new gameBoard with the players removed
},
};
-
-let createCell = (x, y, type) => {
- return {
- x: x,
- y: y,
- type: type,
- pid: 0,
- direction: 0,
- next: null,
- };
-};
-
-function getRandomInt(max) {
- return Math.floor(Math.random() * max);
-}
--
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