craters.js - npm Package Compare versions

Comparing version 1.2.1 to 1.2.2

craters/craters.js

 // Craters.js micro game framework
 // This module contains the core craters.js framework fundamentals
 // it loads modules and exports them
-import * as Vector from './math/vector.js'
-import * as Maths from './math/math.js'
+import * as Maths from './maths/common.js'
+
 import {
@@ -39,3 +39,3 @@ Canvas,
     static version() {
-        return '1.2.0'
+        return '1.2.2'
     }
@@ -53,4 +53,3 @@ }
     Sound,
-    Maths,
-    Vector
+    Maths
 }

craters/entity.js

@@ -0,18 +1,11 @@
+import * as Maths from './maths/common.js'
+
+// Game
 class Game {
-    constructor(container, width, height, fps, debug) {
+    constructor() {
         this.entities = []
         this.state = {
-            container: container,
-            size: {
-                x: 512,
-                y: 512
-            },
-            gravity: {
-                x: 0,
-                y: 0
-            },
-            friction: {
-                x: 0,
-                y: 0
-            }
+            size: new Maths.Vector(1024, 512),
+            gravity: new Maths.Vector(0, 0),
+            friction: new Maths.Vector(0, 0)
         }
@@ -23,3 +16,3 @@ }
         // used for adding entities
-        this.entities.push(obj)
+        return this.entities.push(obj)
     }
@@ -29,9 +22,10 @@
         // used to remove entities
-        this.entities.splice(index, 1)
+        return this.entities.splice(index, 1)
     }
 
-    update() {
+    update(elapsed, fps) {
         // Loop through all bodies and update one at a time
         this.entities.forEach((body) => {
-            body.update()
+            body.state.loop = this.state.loop;
+
             switch (body.type) {
@@ -42,11 +36,11 @@ case 'dynamic':
                     body.state.vel.y += body.state.accel.y + (body.state.gravity.y + this.state.gravity.y)
-                    body.state.pos.x += body.state.vel.x
-                    body.state.pos.y += body.state.vel.y
+                    body.state.pos.x += (body.state.vel.x * (1 / ((body.state.loop.delta + body.state.loop.nframe) / 2)))
+                    body.state.pos.y += (body.state.vel.y * (1 / ((body.state.loop.delta + body.state.loop.nframe) / 2)))
 
-                    var fx = body.state.friction.x,
-                        nx = body.state.vel.x + fx,
-                        x = body.state.vel.x - fx,
-                        fy = body.state.friction.y,
-                        ny = body.state.vel.y + fy,
-                        y = body.state.vel.y - fy;
+                    var fx = body.state.friction.x
+                    var nx = body.state.vel.x + fx
+                    var x = body.state.vel.x - fx
+                    var fy = body.state.friction.y
+                    var ny = body.state.vel.y + fy
+                    var y = body.state.vel.y - fy
 
@@ -56,3 +50,3 @@ body.state.vel.x = (
                         (x > 0) ? x : 0
-                    );
+                    )
 
@@ -62,7 +56,7 @@ body.state.vel.y = (
                         (y > 0) ? y : 0
-                    );
+                    )
+                    break;
 
-                    break
-                case 'kinematic':
-                    // there's no force of gravity applied onto kinematic bodies
+                case 'static':
+                    // there's no force of gravity applied onto static bodies
                     body.state.vel.x += body.state.accel.x
@@ -77,2 +71,4 @@ body.state.vel.y += body.state.accel.y
             }
+
+            body.update()
         })
@@ -89,22 +85,11 @@ }
 
+// Entity
 class Entity extends Game {
     constructor() {
         super()
-        this.state.size = {
-            x: 10,
-            y: 10
-        }
-        this.state.pos = {
-            x: 0,
-            y: 0
-        }
-        this.state.vel = {
-            x: 0,
-            y: 0
-        }
-        this.state.accel = {
-            x: 0,
-            y: 0
-        }
-        this.state.radius = 10
+        this.state.size = new Maths.Vector(20, 20)
+        this.state.pos = new Maths.Vector(0, 0)
+        this.state.vel = new Maths.Vector(0, 0)
+        this.state.accel = new Maths.Vector(0, 0)
+        this.state.radius = 20
         this.state.angle = 0
@@ -115,2 +100,3 @@ this.type = 'dynamic'
 
+// Sprite
 class Sprite extends Entity {
@@ -121,14 +107,5 @@ constructor(scope, args) {
         this.scope = scope
-        this.state.pos = args.pos || {
-            x: 0,
-            y: 0
-        }
-        this.state.crop = {
-            x: 0,
-            y: 0
-        }
-        this.state.size = args.size || {
-            x: 0,
-            y: 0
-        }
+        this.state.pos = args.pos || new Maths.Vector(0, 0)
+        this.state.crop = new Maths.Vector(0, 0)
+        this.state.size = args.size || new Maths.Vector(0, 0)
 
@@ -135,0 +112,0 @@ this.state.frames = args.frames || []

craters/system.js

@@ -10,2 +10,3 @@ // Game Loop Module
             tframe: (1000 / tframe),
+            nframe: tframe,
             before: window.performance.now()
@@ -17,3 +18,3 @@ }
             loop.startLoop = window.requestAnimationFrame(loop.main)
-            loop.fps = Math.round(((1000 / (window.performance.now() - loop.before) * 100) / 100))
+            loop.delta = Math.round(((1000 / (window.performance.now() - loop.before) * 100) / 100))
 
@@ -27,7 +28,9 @@ if (window.performance.now() < loop.before + loop.tframe) return
             }
+            // update scope
+            scope.state.loop = loop;
 
             // Update the game state
-            scope.update(loop.elapsed, loop.fps)
+            scope.update(loop.elapsed, loop.delta)
             // Render the next frame
-            scope.render(loop.elapsed, loop.fps)
+            scope.render(loop.elapsed, loop.delta)
             loop.elapsed++
@@ -80,3 +83,4 @@ }
 
-        canvas.clear = (w, x, y, z) => {
+        canvas.clear = (v, w, x, y, z) => {
+            v = v || null
             w = w || 0
@@ -86,3 +90,12 @@ x = x || 0
             z = z || canvas.height
-            canvas.context.clearRect(w, x, y, z)
+
+            if (v) { // clear with color if true
+                canvas.context.save();
+                canvas.context.fillStyle = v;
+                canvas.context.fillRect(w, x, y, z)
+                canvas.context.fill();
+                canvas.context.restore();
+            } else {
+                canvas.context.clearRect(w, x, y, z)
+            };
         }
@@ -89,0 +102,0 @@

dist/craters.js

 var Craters = (function (exports) {
     'use strict';
 
+    const degToRad = function(angle) {
+        return angle * Math.PI / 180;
+    };
+
+    const radToDeg = function(angle) {
+        return angle * 180 / Math.PI;
+    };
+
+    const distance = function(x1, y1, x2, y2) {
+        return Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1));
+    };
+
+    const map = function(value, low1, high1, low2, high2) {
+        return low2 + (high2 - low2) * (value - low1) / (high1 - low1);
+    };
+
+    const boundary = function(value, min, max) {
+        return Math.min(Math.max(value, min), max)
+    };
+
+    /**
+     * Generic Vector class
+     *
+     *
+     * @example
+     * import vector, {Vector} from 'Vector';
+     *
+     * Instantiate new objects in the following ways
+     *  1. use vector convenience function like so: vector(x, y);
+     *  2. use Vector object directly like: new Vector(x, y);
+     *
+     * Methods on a newly created vector, such as .add or .subtract
+     * modify the x and y properties on that vector, changing them forever
+     * i.e.
+     *      let vec1 = vector(0, 0);
+     *      let vec2 = vector(10, 20);
+     *      vec1.add(vec2);
+     *
+     * Results in vec1.x = 10 and vec1.y = 20.  vec2 is unmodified
+     *
+     * To perform an operation on two vectors and return a new vector,
+     * without modifying the input vectors, use the methods on {Vector}
+     * i.e.
+     *      let vec1 = vector(0, 0);
+     *      let vec2 = vector(10, 20);
+     *      let vec3 = Vector.add(vec1, vec2);
+     *
+     * Results in vec1 and vec2 remining unmodified,
+     * and vec3.x = 10 and vec3.y = 20
+     *
+     */
+
+    // import {radToDeg} from './math';
+
+    /**
+     * Base Vector constructor
+     * @constructor
+     * @param {number} x - x coordinate
+     * @param {number} y - y coordinate
+     */
+    const Vector = function(x, y) {
+        this.x = x || 0;
+        this.y = y || 0;
+    };
+
+    /**
+     * Prototype object for all Vectors
+     */
+    Vector.prototype = {
+        /**
+         * Return a copy of a vector
+         * @method
+         * @return {Vector} a new vector object
+         */
+        clone: function() {
+            return new Vector(this.x, this.y);
+        },
+
+        /**
+         * Generic Setter
+         * @method
+         * @param {string} prop - property to set
+         * @param {*} val - value to set
+         * @return {This} for chaining
+         */
+        set: function(prop, val) {
+            if (prop === 'x') {
+                this.x = val;
+            } else if (prop === 'y') {
+                this.y = val;
+            }
+            return this;
+        },
+
+        /**
+         * Add another vector to this vector, modifying internal
+         * properties
+         * @method
+         * @param {Vector} vec - vector to add
+         * @return {This} for chaining
+         */
+        add: function() {
+            let args = arguments;
+            let x, y;
+            if (args.length === 1) {
+                let vec = args[0];
+                if (typeof vec === 'object') {
+                    x = vec.x;
+                    y = vec.y;
+                }
+            } else if (args.length === 2) {
+                if (typeof args[0] === 'number' && typeof args[1] === 'number') {
+                    x = args[0];
+                    y = args[1];
+                }
+            }
+
+            this.x += x;
+            this.y += y;
+
+            return this;
+        },
+
+        /**
+         * Subtract another vector from this vector
+         * @method
+         * @param {Vector} vec - vector to subtract
+         * @return {This} for chaining
+         */
+        subtract: function(vec) {
+            this.x -= vec.x;
+            this.y -= vec.y;
+            return this;
+        },
+
+        /**
+         * Multiply another vector by this vector or scalar
+         * modifies internal properties
+         * @param {Vector|number} vec - either Vector object or single scalar
+         * @return {This} for chaining
+         */
+        multiply: function(vec) {
+            if (typeof vec === 'object') {
+                this.x *= vec.x;
+                this.y *= vec.y;
+            } else if (typeof vec === 'number') {
+                this.x *= vec;
+                this.y *= vec;
+            }
+
+            return this;
+        },
+
+        /**
+         * Gives the magnitude (length, essentially) of the vector
+         * @method
+         * @return {number} magnitude of the vector
+         */
+        magnitude: function() {
+            return Math.sqrt(this.x * this.x + this.y * this.y);
+        },
+
+        /**
+         * Magnitude squared - useful when trying to save on computation
+         * @method
+         * @return {number} mag squared
+         */
+        magnitudeSq: function() {
+            return this.x * this.x + this.y * this.y;
+        },
+
+        /**
+         * Negate both x and y values (essentially rotate vector 180 degrees)
+         * @method
+         * @return {Vector} for method chaining
+         */
+        negate: function() {
+            this.x = -this.x;
+            this.y = -this.y;
+            return this;
+        },
+
+        /**
+         * Translate to specified x and y points
+         * @param {number} x - amount to move in the x
+         * @param {number} y - amount to move in the y
+         * @return {This} for chaining
+         */
+        // translate:
+        // function(x, y) {
+        //     this.x += x;
+        //     this.y += y;
+        //     return this;
+        // },
+
+        /**
+         * Rotate vector around specified point of rotation
+         * Note: Will rotate around origin
+         * @param {number} angle - amount of rotation in radians
+         * @return {This} for chaining
+         */
+        rotate: function(angle) {
+            let sin = Math.sin(angle);
+            let cos = Math.cos(angle);
+            let x = (this.x * cos) - (this.y * sin);
+            let y = (this.x * sin) + (this.y * cos);
+            this.x = x;
+            this.y = y;
+            return this;
+        },
+
+        /**
+         * Dot product between two vectors
+         * Does NOT modify internal state
+         * @param {Vector} vec - the vector to dot with
+         * @return {number} dot product
+         */
+        dot: function(vec) {
+            return this.x * vec.x + this.y * vec.y;
+        },
+
+        /**
+         * Cross product between two vectors
+         * Does NOT modify internal state
+         * @method
+         * @param {Vector} vec - the vec to cross with
+         * @return {number} cross product
+         */
+        cross: function(vec) {
+            return this.x * vec.y - this.y * vec.x;
+        },
+
+        /**
+         * Return angle between two vectors in radians
+         * @param {Vector} vec - vector to find angle to
+         * @return {number} theta - radians between two vectors
+         */
+        angleTo: function(vec) {
+            let a = this.magnitude();
+            let b = vec.magnitude();
+            let d = this.dot(vec);
+
+            let theta = Math.acos(d / (a * b));
+            return theta;
+        },
+
+        /**
+         * Return angle from 0 of this vector
+         * @method
+         * @param {string} [mode] - if mode = 'DEGREES', return value will be in
+         * degrees, otherwise radians
+         * @return {number} angle in degrees or radians (depending on mode)
+         *
+         */
+        getAngle: function(mode) {
+            if (mode === 'DEGREES') {
+                return radToDeg(Math.atan(this.y / this.x));
+            }
+            let a = Math.atan2(this.y, this.x);
+            //return a;
+            return a < 0 ? Math.PI * 2 + a : a;
+        },
+
+        /**
+         * Convert to a unit vector
+         * i.e. change length of vector to 1
+         * @method
+         * @return {This} for chaining
+         */
+        normalize: function() {
+            let mag = this.magnitude();
+            this.x /= mag;
+            this.y /= mag;
+            return this;
+        },
+
+        /**
+         * Create normal vector based on current vector
+         * Modifies internal state!
+         * @param {string} side - specify 'left' or 'right' normal
+         * @return {This} for chaining
+         */
+        perp: function(side) {
+            if (side === 'right') {
+                let tmp = this.x;
+                this.x = this.y;
+                this.y = -tmp;
+            } else {
+                let tmp = this.x;
+                this.x = -this.y;
+                this.y = tmp;
+            }
+            return this;
+        },
+
+        /**
+         * Calculate euclidian distance between two vectors
+         * @param {Vector} vec - vector to find distance to
+         * @return {number} euclidean distance
+         */
+        distanceTo: function(vec) {
+            return Math.sqrt((vec.x - this.x) * (vec.x - this.x) + (vec.y - this.y) * (vec.y - this.y));
+        },
+
+        /**
+         * Scalar Projection of A onto B assuming B is NOT a unit vector
+         * @param {Vector} vec - the vector to project onto
+         * @return {number} component of A on B
+         */
+        scalarProject: function(vec) {
+            return this.dot(vec) / vec.magnitude();
+        },
+
+        /**
+         * Calculate Scalar projection of A onto B assuming that B is a unit vector
+         * This is more efficient assuming we already have a unit vector
+         * @param {Vector} vec - the unit vector to project onto
+         * @return {number} component of A on B
+         */
+        scalarProjectUnit: function(vec) {
+            return this.dot(vec);
+        },
+
+        /**
+         * Vector Projection of A onto B assuming B is NOT a unit vector
+         * @param {Vector} vec - vector to project onto
+         * @return {This} for chaining
+         */
+        vectorProject: function(vec) {
+            let scalarComp = this.dot(vec) / vec.magnitudeSq();
+            this.x = vec.x * scalarComp;
+            this.y = vec.y * scalarComp;
+            return this;
+        },
+
+        /**
+         * Vector Projection of A onto B assuming B IS a unit vector
+         * @param {Vector} vec - vector to project onto
+         * @return {This} for chaining
+         */
+        vectorProjectUnit: function(vec) {
+            let scalarComp = this.dot(vec);
+            this.x = vec.x * scalarComp;
+            this.y = vec.y * scalarComp;
+            return this;
+        }
+    };
+
+    Vector.prototype.translate = Vector.prototype.add;
+
+    // ---------- Static Methods -----------//
+    /**
+     * @static
+     * @param {Vector} v1 - first Vector obj
+     * @param {Vector} v2 - second Vector obj
+     * @return {Vector}
+     *
+     * Adds two vectors, and returns a new one
+     */
+    Vector.add = function(v1, v2) {
+        return new Vector(v1.x + v2.x, v1.y + v2.y);
+    };
+    Vector.subtract = function(v1, v2) {
+        return new Vector(v1.x - v2.x, v1.y - v2.y);
+    };
+    Vector.multiply = function(v1, v2) {
+        if (typeof v1 === 'number' && typeof v2 === 'number') {
+            return v1 * v2;
+        }
+
+        if (typeof v1 === 'object' && typeof v2 === 'number') {
+            return new Vector(v1.x * v2, v1.y * v2);
+        }
+
+        if (typeof v2 === 'object' && typeof v1 === 'number') {
+            return new Vector(v1 * v2.x, v1 * v2.y);
+        }
+
+        return new Vector(v1.x * v2.x, v1.y * v2.y);
+    };
+    Vector.dot = function(v1, v2) {
+        return v1.x * v2.x + v1.y * v2.y;
+    };
+    Vector.angleBetween = function(v1, v2) {
+        let a = v1.magnitude();
+        let b = v2.magnitude();
+        let d = v1.dot(v2);
+
+        let theta = Math.acos(d / (a * b));
+        return theta;
+    };
+    Vector.perp = function(v1, side) {
+        switch (side) {
+            case 'right':
+                return new Vector(v1.y, -v1.x);
+            default:
+                return new Vector(-v1.y, v1.x);
+        }
+    };
+
+    Vector.negate = function(v) {
+        return new Vector(-v.x, -v.y);
+    };
+
+    var common = /*#__PURE__*/Object.freeze({
+        Vector: Vector,
+        boundary: boundary,
+        degToRad: degToRad,
+        radToDeg: radToDeg,
+        distance: distance,
+        map: map
+    });
+
     // Game Loop Module
@@ -13,2 +426,3 @@ // This module contains the game loop, which handles
                 tframe: (1000 / tframe),
+                nframe: tframe,
                 before: window.performance.now()
@@ -20,3 +434,3 @@ };
                 loop.startLoop = window.requestAnimationFrame(loop.main);
-                loop.fps = Math.round(((1000 / (window.performance.now() - loop.before) * 100) / 100));
+                loop.delta = Math.round(((1000 / (window.performance.now() - loop.before) * 100) / 100));
 
@@ -30,7 +444,9 @@ if (window.performance.now() < loop.before + loop.tframe) return
                 };
+                // update scope
+                scope.state.loop = loop;
 
                 // Update the game state
-                scope.update(loop.elapsed, loop.fps);
+                scope.update(loop.elapsed, loop.delta);
                 // Render the next frame
-                scope.render(loop.elapsed, loop.fps);
+                scope.render(loop.elapsed, loop.delta);
                 loop.elapsed++;
@@ -83,3 +499,4 @@ };
 
-            canvas.clear = (w, x, y, z) => {
+            canvas.clear = (v, w, x, y, z) => {
+                v = v || null;
                 w = w || 0;
@@ -89,5 +506,13 @@ x = x || 0;
                 z = z || canvas.height;
-                canvas.context.clearRect(w, x, y, z);
-            };
 
+                if (v) { // clear with color if true
+                    canvas.context.save();
+                    canvas.context.fillStyle = v;
+                    canvas.context.fillRect(w, x, y, z);
+                    canvas.context.fill();
+                    canvas.context.restore();
+                } else {
+                    canvas.context.clearRect(w, x, y, z);
+                }        };
+
             canvas.camera = (x, y) => {
@@ -102,15 +527,10 @@ canvas.context.setTransform(1, 0, 0, 1, 0, 0); // reset the transform matrix
 
+    // Game
     class Game {
-        constructor(container, width, height, fps, debug) {
+        constructor() {
             this.entities = [];
             this.state = {
-                container: container,
-                size: {
-                    x: 512,
-                    y: 512
-                },
-                gravity: {
-                    x: 0,
-                    y: 0
-                }
+                size: new Vector(1024, 512),
+                gravity: new Vector(0, 0),
+                friction: new Vector(0, 0)
             };
@@ -121,3 +541,3 @@ }
             // used for adding entities
-            this.entities.push(obj);
+            return this.entities.push(obj)
         }
@@ -127,9 +547,10 @@
             // used to remove entities
-            this.entities.splice(index, 1);
+            return this.entities.splice(index, 1)
         }
 
-        update() {
+        update(elapsed, fps) {
             // Loop through all bodies and update one at a time
             this.entities.forEach((body) => {
-                body.update();
+                body.state.loop = this.state.loop;
+
                 switch (body.type) {
@@ -140,8 +561,25 @@ case 'dynamic':
                         body.state.vel.y += body.state.accel.y + (body.state.gravity.y + this.state.gravity.y);
-                        body.state.pos.x += body.state.vel.x;
-                        body.state.pos.y += body.state.vel.y;
+                        body.state.pos.x += (body.state.vel.x * (1 / ((body.state.loop.delta + body.state.loop.nframe) / 2)));
+                        body.state.pos.y += (body.state.vel.y * (1 / ((body.state.loop.delta + body.state.loop.nframe) / 2)));
 
-                        break
-                    case 'kinematic':
-                        // there's no force of gravity applied onto kinematic bodies
+                        var fx = body.state.friction.x;
+                        var nx = body.state.vel.x + fx;
+                        var x = body.state.vel.x - fx;
+                        var fy = body.state.friction.y;
+                        var ny = body.state.vel.y + fy;
+                        var y = body.state.vel.y - fy;
+
+                        body.state.vel.x = (
+                            (nx < 0) ? nx :
+                            (x > 0) ? x : 0
+                        );
+
+                        body.state.vel.y = (
+                            (ny < 0) ? ny :
+                            (y > 0) ? y : 0
+                        );
+                        break;
+
+                    case 'static':
+                        // there's no force of gravity applied onto static bodies
                         body.state.vel.x += body.state.accel.x;
@@ -156,2 +594,4 @@ body.state.vel.y += body.state.accel.y;
                 }
+
+                body.update();
             });
@@ -168,22 +608,11 @@ }
 
+    // Entity
     class Entity extends Game {
         constructor() {
             super();
-            this.state.size = {
-                x: 10,
-                y: 10
-            };
-            this.state.pos = {
-                x: 0,
-                y: 0
-            };
-            this.state.vel = {
-                x: 0,
-                y: 0
-            };
-            this.state.accel = {
-                x: 0,
-                y: 0
-            };
-            this.state.radius = 10;
+            this.state.size = new Vector(20, 20);
+            this.state.pos = new Vector(0, 0);
+            this.state.vel = new Vector(0, 0);
+            this.state.accel = new Vector(0, 0);
+            this.state.radius = 20;
             this.state.angle = 0;
@@ -194,2 +623,3 @@ this.type = 'dynamic';
 
+    // Sprite
     class Sprite extends Entity {
@@ -200,14 +630,5 @@ constructor(scope, args) {
             this.scope = scope;
-            this.state.pos = args.pos || {
-                x: 0,
-                y: 0
-            };
-            this.state.crop = {
-                x: 0,
-                y: 0
-            };
-            this.state.size = args.size || {
-                x: 0,
-                y: 0
-            };
+            this.state.pos = args.pos || new Vector(0, 0);
+            this.state.crop = new Vector(0, 0);
+            this.state.size = args.size || new Vector(0, 0);
 
@@ -386,8 +807,2 @@ this.state.frames = args.frames || [];
 
-    const boundary = function numberboundary(min, max) {
-        return Math.min(Math.max(this, min), max)
-    };
-    // Expose methods
-    Number.prototype.boundary = boundary;
-
     if (typeof window === 'undefined' && global) {
@@ -410,3 +825,3 @@ global.window = {
         static version() {
-            return '1.2.0'
+            return '1.2.2'
         }
@@ -421,2 +836,3 @@ }
     exports.Loop = Loop;
+    exports.Maths = common;
     exports.Sound = Sound;
@@ -423,0 +839,0 @@ exports.Sprite = Sprite;

dist/craters.min.js

@@ -1,1 +0,1 @@
-!function(t){var e={};function n(s){if(e[s])return e[s].exports;var i=e[s]={i:s,l:!1,exports:{}};return t[s].call(i.exports,i,i.exports,n),i.l=!0,i.exports}n.m=t,n.c=e,n.d=function(t,e,s){n.o(t,e)||Object.defineProperty(t,e,{enumerable:!0,get:s})},n.r=function(t){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(t,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(t,"__esModule",{value:!0})},n.t=function(t,e){if(1&e&&(t=n(t)),8&e)return t;if(4&e&&"object"==typeof t&&t&&t.__esModule)return t;var s=Object.create(null);if(n.r(s),Object.defineProperty(s,"default",{enumerable:!0,value:t}),2&e&&"string"!=typeof t)for(var i in t)n.d(s,i,function(e){return t[e]}.bind(null,i));return s},n.n=function(t){var e=t&&t.__esModule?function(){return t.default}:function(){return t};return n.d(e,"a",e),e},n.o=function(t,e){return Object.prototype.hasOwnProperty.call(t,e)},n.p="",n(n.s=1)}([function(t,e){var n;n=function(){return this}();try{n=n||new Function("return this")()}catch(t){"object"==typeof window&&(n=window)}t.exports=n},function(t,e,n){(function(t,e){!function(n){"use strict";class s{constructor(t,e,n,s,i){this.entities=[],this.state={container:t,size:{x:512,y:512},gravity:{x:0,y:0}}}addObject(t){this.entities.push(t)}removeObject(t){this.entities.splice(t,1)}update(){this.entities.forEach(t=>{switch(t.update(),t.type){case"dynamic":t.state.vel.x+=t.state.accel.x+(t.state.gravity.x+this.state.gravity.x),t.state.vel.y+=t.state.accel.y+(t.state.gravity.y+this.state.gravity.y),t.state.pos.x+=t.state.vel.x,t.state.pos.y+=t.state.vel.y;break;case"kinematic":t.state.vel.x+=t.state.accel.x,t.state.vel.y+=t.state.accel.y,t.state.pos.x+=t.state.vel.x,t.state.pos.y+=t.state.vel.y}})}render(){this.entities.forEach(t=>{t.render()})}}class i extends s{constructor(){super(),this.state.size={x:10,y:10},this.state.pos={x:0,y:0},this.state.vel={x:0,y:0},this.state.accel={x:0,y:0},this.state.radius=10,this.state.angle=0,this.type="dynamic"}}Number.prototype.boundary=function(t,e){return Math.min(Math.max(this,t),e)},"undefined"==typeof window&&t&&(t.window={performance:{now:function(t){if(!t)return Date.now();var e=Date.now(t);return Math.round(1e3*e[0]+e[1]/1e6)}},requestAnimationFrame:function(t){e(()=>t(this.performance.now()))}});n.Canvas=class{constructor(t,e,n){n=document.querySelector(n||"body");var s=document.createElement("canvas"),i=s.getContext("2d"),r=window.devicePixelRatio/["webkitBackingStorePixelRatio","mozBackingStorePixelRatio","msBackingStorePixelRatio","oBackingStorePixelRatio","backingStorePixelRatio"].reduce(function(t,e){return Object.prototype.hasOwnProperty.call(i,e)?i[e]:1});return s.width=Math.round(t*r),s.height=Math.round(e*r),s.style.width=t+"px",s.style.height=e+"px",i.setTransform(r,0,0,r,0,0),n.insertBefore(s,n.firstChild),s.context=s.getContext("2d"),s.resize=(t,e)=>{s.style.width=e.x+"px",s.style.height=e.y+"px",s.width=Math.round(e.x*r),s.height=Math.round(e.y*r),i.setTransform(r,0,0,r,0,0),t.state.size.x=e.x,t.state.size.y=e.y},s.clear=(t,e,n,i)=>{t=t||0,e=e||0,n=n||s.width,i=i||s.height,s.context.clearRect(t,e,n,i)},s.camera=(t,e)=>{s.context.setTransform(1,0,0,1,0,0),s.context.translate(-t,-e)},s}},n.Craters=class{static version(){return"1.2.0"}},n.Entity=i,n.Game=s,n.Loader=class{constructor(){this.rescache={}}load(t,e){var n=this;t instanceof Array?t.forEach(function(t){n.rescache[t]=!1,n.fetch(t,e)}):(n.rescache[t]=!1,n.fetch(t,e))}fetch(t,e){var n=this;if(n.rescache[t])return n.rescache[t];var s=new Image;s.onload=function(){n.rescache[t]=s,n.ready(e)},s.src=t}ready(t){if("function"==typeof t){var e=!0;for(var n in this.rescache)Object.prototype.hasOwnProperty.call(this.rescache,n)&&!this.rescache[n]&&(e=!1);e&&t()}}},n.Loop=class{constructor(t,e){var n={elapsed:0,tframe:1e3/e,before:window.performance.now(),main:function(){n.startLoop=window.requestAnimationFrame(n.main),n.fps=Math.round(1e3/(window.performance.now()-n.before)*100/100),window.performance.now()<n.before+n.tframe||(n.before=window.performance.now(),n.stopLoop=()=>{window.cancelAnimationFrame(n.startLoop)},t.update(n.elapsed,n.fps),t.render(n.elapsed,n.fps),n.elapsed++)}};return n.main(),n}},n.Sound=class{constructor(){this.sounds={},this.instances=[],this.defaultVolume=1}load(t,e,n){if(this.sounds[t]=new Audio(e),"function"!=typeof n)return new Promise((e,n)=>{this.sounds[t].addEventListener("canplaythrough",e),this.sounds[t].addEventListener("error",n)});this.sounds[t].addEventListener("canplaythrough",n)}remove(t){void 0!==this.sounds&&delete this.sounds[t]}unlock(t,e,n,s){var i=this,r=["touchstart","touchend","mousedown","keydown"],o=function o(){r.forEach(function(t){document.body.removeEventListener(t,o)}),i.play(t,e,n,s)};r.forEach(function(t){document.body.addEventListener(t,o,!1)})}play(t,e,n,s){if(s=s||!1,void 0===this.sounds[t])return console.error("Can't find sound called '"+t+"'."),!1;var i=this.sounds[t].cloneNode(!0);return i.volume="number"==typeof n?n:this.defaultVolume,i.loop=s,i.play(),this.instances.push(i),i.addEventListener("ended",()=>{var t=this.instances.indexOf(i);-1!==t&&this.instances.splice(t,1)}),"function"==typeof e?(i.addEventListener("ended",e),!0):new Promise((t,e)=>i.addEventListener("ended",t))}stopAll(){var t=this.instances.slice();for(var e of t)e.pause(),e.dispatchEvent(new Event("ended"))}},n.Sprite=class extends i{constructor(t,e){super(),this.scope=t,this.state.pos=e.pos||{x:0,y:0},this.state.crop={x:0,y:0},this.state.size=e.size||{x:0,y:0},this.state.frames=e.frames||[],this.state.angle=e.angle||0,this.state.image=e.image||new Image,this.state.delay=e.delay||5,this.state.tick=e.tick||0,this.state.orientation=e.orientation||"horizontal"}update(){super.update(),this.state.tick<=0&&("vertical"===this.orientation?(this.state.crop.y=this.state.frames.shift(),this.state.frames.push(this.state.crop.y)):(this.state.crop.x=this.state.frames.shift(),this.state.frames.push(this.state.crop.x)),this.state.tick=this.state.delay),this.state.tick--}render(){super.render(),this.scope.context.save(),this.scope.context.translate(this.state.crop.x+this.state.size.x/2,this.state.crop.y+this.state.size.y/2),this.scope.context.rotate(this.state.angle*(Math.PI/180)),this.scope.context.translate(-(this.state.crop.x+this.state.size.x/2),-(this.state.crop.y+this.state.size.y/2)),this.scope.context.drawImage(this.state.image,this.state.crop.x*this.state.size.x,this.state.crop.y*this.state.size.y,this.state.size.x,this.state.size.y,this.state.pos.x,this.state.pos.y,this.state.size.x,this.state.size.y),this.scope.context.restore()}}}({})}).call(this,n(0),n(2).setImmediate)},function(t,e,n){(function(t){var 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package.json

 {
   "name": "craters.js",
-  "version": "1.2.1",
+  "version": "1.2.2",
   "description": "A Compact Game Engine that helps you build fast, modern HTML5 Games",
@@ -39,4 +39,5 @@ "main": "./index.js",
     "chai": "^4.2.0",
-    "esm": "^3.2.25"
+    "esm": "^3.2.25",
+    "sat-js": "^0.8.0"
   }
 }

README.md

@@ -14,3 +14,3 @@ # Craters.js
 #### Features ✨
-- The Changelog outlines more features [Read changelog](changelog.md)
+- The Changelog outlines more features [Read changelog](CHANGELOG.md)
 - ES modules
@@ -17,0 +17,0 @@ * reduces bundle size you only import what you need

New alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Fixed alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

724321

increased by551.76%

Number of package files

33

increased by83.33%

Lines of code

15754

increased by541.45%

Worsened metrics

Dev dependency count

3

increased by50%

No dependency changes