Add multiplayer Player 2 controls (Play as Enermies)

[dhiegosilva]

Summary

This PR adds comprehensive Player 2 controls for multiplayer mode with single-step input handling to prevent action repetition when keys are held, matching Player 1's behavior.

Features Added

Player 2 Controls

• Attack Button: Player 2 can now draw sword when sheathed by pressing the attack button (X key by default)
• Block/Parry: Player 2 can parry/block attacks using the up key (W by default)
• Sheath Sword: Player 2 can sheath sword using the down key (S by default)
• Movement: Forward/backward movement with single-step mode (A/D keys by default)

Single-Step Input Mode

All Player 2 controls now use single-step mode, preventing continuous actions when keys are held:

• Attack: Triggers once per press, no continuous swinging
• Block/Parry: Triggers once per press, no continuous blocking
• Down/Sheath: Triggers once per press, no continuous sheathing
• Movement: Already implemented, now consistent across all controls

Technical Changes

Modified Files

• src/seg005.c:

  • Added Player 2 attack button support in control_standing() and control_guard_inactive()
  • Enhanced parry() to allow Player 2 parry regardless of opponent distance/frame
  • Added IGNORE state synchronization for control_shift2_p2, control_up_p2, and control_down_p2 in sword_strike(), draw_sword(), parry(), and sword sheathing logic

• src/seg006.c:

  • Implemented single-step logic for all Player 2 controls in read_user_control_p2()
  • Added IGNORE state preservation in user_control_p2() to prevent input repeat
  • Enhanced control state management to maintain IGNORE state across frames

New Files

• src/build_and_run.ps1: Fast incremental build script for development (only compiles changed files)

How It Works

1. Input Processing: read_user_control_p2() processes Player 2 input with single-step logic
2. State Management: IGNORE state is preserved across frames to prevent repeat actions
3. Control Mapping: user_control_p2() maps Player 2 controls to the game's control system
4. Action Execution: Game functions (sword_strike(), parry(), etc.) set IGNORE state to prevent repeat

Testing

• ✅ Player 2 can draw sword with attack button when sheathed
• ✅ Player 2 can parry/block with up key
• ✅ Player 2 can sheath sword with down key
• ✅ All controls trigger once per press, no repeat when held
• ✅ Works consistently with Player 1 controls

Compatibility

• Fully backward compatible
• Only activates when is_multiplayer_mode is enabled
• No changes to existing single-player gameplay

[salvadorc17]

Hey can you try something similar to my project
https://github.com/salvadorc17/Prince-Monogame