This function handles player movement, animation, and collision detection in a grid-based game. The move function updates the player's position based on directional input, while anim cycles through sprite frames to create an animation effect. The collide function checks if the player's new position intersects with any solid objects, reverting th…

file.lua

function move(o)
	local lx=o.x
	local ly=o.y
	
	if btn(⬅️) then
		o.x-=o.speed
	end
	if btn(➡️) then
		o.x+=o.speed
	end
	if btn(⬆️) then
		o.y-=o.speed
	end
	if btn(⬇️) then
		o.y+=o.speed
	end
	
	if collide(o) then
		o.x=lx
		o.y=ly
	end
end

function anim(o)
	if o.anim_timer<o.anim_speed then
		o.anim_timer+=1		
	else
		if o.sprite<o.last_sprite then
			o.sprite+=1
		else
			o.sprite=o.initial_sprite
		end
		o.anim_timer=0
	end
end

function collide(o)
	local x1=o.x/8
	local y1=o.y/8
	local x2=(o.x+7)/8
	local y2=(o.y+7)/8
	
	local a=fget(mget(x1,y1),0)
	local b=fget(mget(x1,y2),0)
	local c=fget(mget(x2,y2),0)
	local d=fget(mget(x2,y1),0)
	
	if a or b or c or d then
		return true
	end
	
	return false
end