variables

• Halo: ReachYes
• Halo 4Yes
• Halo 2: AnniversaryYes

Custom variable declarations. The variables element opens a scope block:

variables global
	local number my_counter 0
end

variables team
	local number team_score 0
end

Scopes include global, team, player, and object. See Variable model for types, built-ins, and usage.

Bitfield booleans

Megalo has no dedicated boolean type — truthy values are numbers (0 = false, non-zero = true). When the variable quota is tight, some authors pack multiple on/off flags into one number variable using a bitfield: each bit stores one boolean. Use bitwise math operations (or to set a bit, not to clear one) and named constants for each mask.

constants
	number k_has_shield 1
	number k_has_speed  2
	number k_has_jump   4
end

variables player
	networked number powerup_flags 0
end

; one variable replaces three separate booleans
action set current_player.powerup_flags or k_has_shield
action set current_player.powerup_flags not k_has_speed

To read a bit in a condition, mask into a temporary and compare:

temporary number masked 0
action set masked set_to current_player.powerup_flags
action set masked and k_has_jump
condition if masked equal_to k_has_jump

Base-derived scripts

variables is full-script-only — it cannot be added in base-derived scripts.

See also

• Variable model
• constants