Double Jump

[jb0gie]

Summary

• Implemented double jump functionality allowing players to perform a mid-air jump
• Added flip animation (Mode 7) that plays during double jump for visual feedback
• Integrated with existing coyote time and jump buffering for responsive controls

Implementation Details

• Added canDoubleJump flag to track double jump availability
• Added doubleJumpUsed flag to prevent multiple triggers while holding jump button
• Flip animation plays for 0.6 seconds during air jump
• Double jump resets when landing on ground
• Works seamlessly with existing jump mechanics (coyote time, jump buffering)

Test Plan

• Jump once, then press jump again in mid-air to perform double jump with flip animation
• Verify flip animation plays for 0.6 seconds then stops
• Confirm double jump can only be used once per air session
• Test that landing resets double jump ability for next jump
• Ensure normal walking/running animations work correctly when grounded
• Verify double jump is disabled in builder mode (only enables flying)

Changes

• Modified src/core/entities/PlayerLocal.js to add double jump mechanics
• Modified src/core/extras/playerEmotes.js to add &l=0 so the flip does not continuously play
• Added FLIP mode (Mode 7) to locomotion system
• Implemented proper state management for double jump and flip animation

[ashconnell]

i think i'll reimplement this because AI went nuts and added so much code.
we already have most of the double jump code in there, its just commented out.