So on Dragondarch's suggestion, I converted Interdpth's Fusion hitbox viewer lua script to work with Zero Mission.
It doesn't work in some rooms and I have no idea why. It's also kind of a frame slow (not much I can do about that), so hitboxes can look desynced sometimes, especially for fast-moving objects.
Twitch archive of Darch playing around with it: http://www.twitch.tv/dragondarchsda/b/484280694 (starts at around 6:10:00)
It doesn't work in some rooms and I have no idea why. It's also kind of a frame slow (not much I can do about that), so hitboxes can look desynced sometimes, especially for fast-moving objects.
Twitch archive of Darch playing around with it: http://www.twitch.tv/dragondarchsda/b/484280694 (starts at around 6:10:00)
Code:
DisplaySamusBox = 1
DisplayProjectileBoxes = 1
DisplayEnemyBoxes = 1
while true do
local cameraX, cameraY = memory.readshort(0x30013B4), memory.readshort(0x30013B6)
-- these are the co-ordinates of the top-left of the screen measured in quarter pixels
if DisplayEnemyBoxes ~= 0 then
-- This function displays the hitbox of all the enemies in the room
for i=0,23 do
local originAddress = 0x30001AC + i*56;
if memory.readshort(originAddress) ~= 0 then
local enemyX, enemyY = memory.readshort(originAddress+4), memory.readshort(originAddress + 2) --0x30001B0
local topleft = {(enemyX + memory.readshortsigned(originAddress + 14) - cameraX)/4, (enemyY + memory.readshortsigned(originAddress + 10) - cameraY)/4}
local bottomright = {(enemyX + memory.readshortsigned(originAddress + 16) - cameraX)/4, (enemyY + memory.readshortsigned(originAddress + 12) - cameraY)/4}
gui.box(topleft[1], topleft[2], bottomright[1], bottomright[2], "clear", "#808080")
-- draw enemy hitbox
end
end
end
if DisplaySamusBox ~= 0 then
local samusX, samusY = memory.readshort(0x3001600), memory.readshort(0x3001602)
local armcannonX, armcannonY = (memory.readshort(0x3000BEE) - cameraX - 2)/4, (memory.readshort(0x3000BEC)-cameraY - 2)/4
local topleft = {(samusX + memory.readshortsigned(0x30015F6)- cameraX - 2)/4, (samusY + memory.readshortsigned(0x30015F8)- cameraY - 2)/4}
local bottomright = {(samusX - memory.readshortsigned(0x30015F6) - cameraX - 2)/4, (samusY - cameraY - 2)/4}
gui.box(topleft[1], topleft[2], bottomright[1], bottomright[2], "clear", "#80FFFF")
-- draw Samus' hitbox
gui.box(armcannonX-1, armcannonY-1, armcannonX+1, armcannonY+1, "green")
-- draw arm cannon point
local cooldown = memory.readbyte(0x3001418)
if cooldown ~= 0 then
gui.text(armcannonX-1, armcannonY-9, cooldown, "green")
end
-- show current cooldown time
end
-- show projectile hitboxes
if DisplayProjectileBoxes ~= 0 then
for i=0,15 do
local originAddress = 0x3000A2C + i*28;
if memory.readshort(originAddress) ~= 0 then
local projectileX, projectileY = memory.readshort(originAddress + 10), memory.readshort(originAddress + 8)
topleft = {(projectileX + memory.readshortsigned(originAddress + 24) - cameraX - 2)/4, (projectileY + memory.readshortsigned(originAddress + 20) - cameraY - 2)/4}
local bottomright = {(projectileX + memory.readshortsigned(originAddress + 26) - cameraX - 2)/4, (projectileY + memory.readshortsigned(originAddress + 22) - cameraY - 2)/4}
gui.box(topleft[1], topleft[2], bottomright[1], bottomright[2], "clear", "#FFFF80")
-- draw projectile hitbox
end
end
end
vba.frameadvance()
end
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