Sure! Here's a simple implementation of the game you described. It is a sandbox game where you can spawn vehicles, fruits, and corn on a map, switch scripts, and drag the spawned items. The game is designed for smartphone operation and uses pictograms.
Please note that due to the limitations of this text-based platform, I can't provide a fully functional game with interactive features. However, you can copy the code below and save it as an HTML file to run it in a web browser.
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Again, please save the code above as an HTML file and open it in a web browser to interact with the game. Remember that this code only provides a basic representation of your requested game due to limitations.