Creating a circle in my game seems to be more challenging than I anticipated. While there are numerous tutorials available, none seem to address my specific issue. The problem lies in where and how to draw the circle within my existing code:
function startGame() {
//circle needs to be called from here.
//this is how i draw a square
square = new component(40, 40, "blue", 10, 10);
myGameArea.start();
}
I need to specify the function that draws the circle from this point:
function component(width, height, color, x, y) {
this.width = width;
this.height = height;
this.speedX = 0;
this.speedY = 0;
this.x = x;
this.y = y;
//this is where it draws the stuff
this.update = function() {
var ctx = myGameArea.context;
ctx.fillStyle = color;
ctx.fillRect(this.x, this.y, this.width, this.height);
}
this.newPos = function() {
this.x += this.speedX;
this.y += this.speedY;
}
}
The current code only supports drawing squares, not circles. I need to modify it to accommodate circles instead. If I introduce a new function for circles, it must utilize the this.update function, which could potentially conflict with the existing setup. This function is crucial for updating game elements like exampleSquare.update().
var myGameArea = {
canvas : document.createElement("canvas"),
start : function() {
this.canvas.width = 480;
this.canvas.height = 270;
this.context = this.canvas.getContext("2d");
document.body.insertBefore(this.canvas, document.body.childNodes[0]);
this.frameNo = 0;
this.interval = setInterval(updateGameArea, 20);
},
clear : function() {
this.context.clearRect(0, 0, this.canvas.width, this.canvas.height);
}
}
This leads us to the
function updateGameArea() {
myGameArea.clear();
}
which currently serves no purpose but is included for simplicity's sake. To review the full code, please visit: . Keep in mind that the code is complex and may contain incomplete sections as this version has been simplified.