Indev 10

This is overdue! I finished Indev 10 back in January but the commit history was lengthy and intimidating to read so I avoided writing up the changelog as long as I could. However Indev 11 is about 50% finished at this point so I figured I should probably actually properly push out the previous version before I forget.

Key changes brought in this version are the introduction of multiple tower types and a new level. There are also some serious back-end changes (to some early prototype code that definitely needed refactoring) that have improved my workflow for adding content, so as the versions keep on coming so too shall the content.

Indev 11 is going to drastically improve player control over building and train structure, as well as expand on the (admittedly quite basic) enemy variety, so look out for that (coming soon™)!

[changelog]

• additional towers
• multiple projectile types
• menu-based build mode instead of overlay
• added second level and level-select screen
• train now collides with (and damages!) enemies
• refactored back-end level data and train structure
• removed quit delay from menus/title
• removed title screen tutorial, added in-game tutorial helper

[bugfixes]

• fixed train cable draw bug
• fixed level object draw layer bug
• fixed bug where some enemies were ignored when they leave the level
• fixed bug where sometimes enemies failed to spawn on final wave
• fixed some broken dev commands/cheats
• fixed bug where gold wasn't resetting on new level