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Sandbox game
Developer User7437｜Date and time 23/10/14 5:49:33
Build time 35.881 sec｜Game capacity 2.465KB｜

Script

Sure! I will provide you with a simple example of a sandbox game implemented as a single HTML file. Please note that this is just a basic demonstration, and you can expand upon it to create a more complex game with different mechanics, graphics, and features.

This HTML file sets up a simple canvas where you can draw lines by clicking and dragging. The brush size and color are customizable through the `brushSize` and `brushColor` variables. You can expand upon this template by adding more features, such as different brushes, erase functionality, or interactive elements.

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```html
<!DOCTYPE html>
<html>
<head>
    <title>Sandbox Game</title>
    <style>
        canvas {
            border: 1px solid black;
        }
    </style>
</head>
<body>
    <canvas id="sandboxCanvas" width="400" height="400"></canvas>

// Set up initial state
            var mouseX = -1;
            var mouseY = -1;
            var isDrawing = false;
            var brushSize = 10;
            var brushColor = "#000000";

// Handle mouse events
            canvas.addEventListener("mousedown", function(event) {
                isDrawing = true;
                mouseX = event.clientX - canvas.getBoundingClientRect().left;
                mouseY = event.clientY - canvas.getBoundingClientRect().top;
            });

canvas.addEventListener("mousemove", function(event) {
                if (isDrawing) {
                    var prevX = mouseX;
                    var prevY = mouseY;
                    mouseX = event.clientX - canvas.getBoundingClientRect().left;
                    mouseY = event.clientY - canvas.getBoundingClientRect().top;
                    drawLine(prevX, prevY, mouseX, mouseY);
                }
            });

canvas.addEventListener("mouseup", function(event) {
                isDrawing = false;
            });

// Draw function
            function drawLine(startX, startY, endX, endY) {
                ctx.beginPath();
                ctx.moveTo(startX, startY);
                ctx.lineTo(endX, endY);
                ctx.lineWidth = brushSize;
                ctx.strokeStyle = brushColor;
                ctx.stroke();
                ctx.closePath();
            }
        };
    </script>
</body>
</html>
```