Devlog - Saya sedang mencipta enjin permainan!

class GameObject{
    constructor(game) { // Initialize the GameObject
        this.x = 0
        this.y = 0 
        this.sprite_img = {file: undefined, col: 1, row: 1, fw: 1, fh: 1, step: 0, anim_speed: 0, scale: 1}
        this.loaded = false
        this.game = game
        this.kill = false
        this.collision = new CollideBox()

        game.gObjects.push(this)

    };
    setSprite(img_path, row=1, col=1, speed=12, scale=1) {
        var img = new Image();
        img.onload = () => {
            console.log("image loaded")
            this.sprite_img = {file: img, col: col, row: row, fw: img.width / col, fh: img.height / row, step: 0, anim_speed: speed, scale: scale}
            this.onSpriteLoaded()
        };
        img.src = img_path


    }
    onSpriteLoaded() {}
    draw(context, frame) { // Draw function of game object
        if (this.sprite_img.file != undefined) {


            let column = this.sprite_img.step % this.sprite_img.col;
            let row = Math.floor(this.sprite_img.step / this.sprite_img.col);

           // context.clearRect(this.x, this.y, this.sprite_img.fw, this.sprite_img.fh);
            context.drawImage(
                this.sprite_img.file,
                this.sprite_img.fw * column,
                this.sprite_img.fh * row,
                this.sprite_img.fw,
                this.sprite_img.fh,
                this.x,
                this.y,
                this.sprite_img.fw * this.sprite_img.scale,
                this.sprite_img.fh * this.sprite_img.scale
            );

            if (frame % Math.floor(60 / this.sprite_img.anim_speed) === 0) {
                // Mise à jour de step seulement à 12 fps
                if (this.sprite_img.step < this.sprite_img.row * this.sprite_img.col - 1) {
                    this.sprite_img.step += 1;
                } else {
                    this.sprite_img.step = 0;
                }
            }
        }
    }
    distance_to(pos) {
        return Math.sqrt((pos.x - this.x) ** 2 + (pos.y - this.y) ** 2)
    }

    collide_with(box) {
        if (box instanceof GameObject) {
            box = box.collision
        }
        return (
            this.collision.x < box.x + box.w &&
            this.collision.x + this.collision.w > box.x &&
            this.collision.y < box.y + box.h &&
            this.collision.y + this.collision.h > box.y
          )
    }
    onStep()   {};
}   

class Game {
    constructor(width = 1400, height = 700) {
        this.gObjects = [];
        this.toLoad = [];
        this.timers = [];
        this.layers = [];
        this.canvas = document.getElementsByTagName("canvas")[0]

        this.canvas.width = width
        this.canvas.height = height
        this.context =  this.canvas.getContext("2d")
        this.context.globalCompositeOperation = 'source-over';
        this.inputs = {};
        this.mouse = {x: 0, y: 0}
        document.addEventListener('keydown', (e) => {
            this.inputs[e.key] = true;
        }, false);
        document.addEventListener('keyup', (e) => {
            this.inputs[e.key] = false;
        }, false);
        document.addEventListener('mousemove', (e) => {
            this.mouse.x = e.x;
            this.mouse.y = e.y;
        })
        document.addEventListener('mouseevent', (e) => {
            switch (e.button) {

            }
        })

    }
    draw(frame) {
        this.context.clearRect(0, 0, this.canvas.width, this.canvas.height);
        console.log( this.canvas.width, this.canvas.heigh)
        for(let i = 0; i < this.gObjects.length; i ++) {
            this.gObjects[i].draw(this.context, frame)
        }

    }
    gLoop() {
        let fps = Math.floor(1000 / 60)
        console.log(fps)
        let clock = 0
        setInterval(() => {
            clock += 1
            for(let i = 0; i < this.gObjects.length; i ++) {

                if (this.gObjects[i] != undefined) {
                    if (this.gObjects[i].kill) {
                        this.gObjects.splice(i, 1);
                        continue;
                    }
                    this.gObjects[i].onStep();
                }


            }
            this.draw(Math.floor(clock))
               // context.l();

           //     console.log(clock)

           if (fps <= clock) {
            clock = 0
           } 

        }, fps)
    }
    keyboard_check(key) {
        return this.inputs[key] == true
    }
}