implement function to trace drop (while moving right)

This commit is contained in:
2025-01-29 19:35:40 +00:00
parent 97a638b54d
commit 89abab31ab
2 changed files with 25 additions and 9 deletions

View File

@@ -244,14 +244,20 @@ struct
end
fun getMoveRightPatches (nextPlatform, enemy, platformTree, acc) =
if TraceJump.traceRightJump (enemy, #id nextPlatform, platformTree, nextPlatform) then
(* important to check for drop first because path of traceRightJump includes
* descent of jump/drop.
* So, if we check for jump first, we would always jump before dropping
* even if jumping is not necessary. *)
if TraceJump.traceRightDrop (enemy, #id nextPlatform, platformTree) then
EnemyPatch.W_Y_AXIS DROP_BELOW_PLATFORM ::
EnemyPatch.W_X_AXIS MOVE_RIGHT ::
acc
else if TraceJump.traceRightJump (enemy, #id nextPlatform, platformTree) then
if standingOnArea (enemy, platformTree) then
EnemyPatch.W_Y_AXIS (JUMPING 0) :: EnemyPatch.W_X_AXIS MOVE_RIGHT :: acc
else
EnemyPatch.W_X_AXIS MOVE_RIGHT :: acc
else
(* placeholder: should check if we can move to the next platform while
* dropping *)
EnemyPatch.W_X_AXIS MOVE_RIGHT :: acc
fun getMoveLeftPatches (nextPlatform, enemy, platformTree, acc) =

View File

@@ -27,7 +27,16 @@ struct
traceRightJumpDescent (nextX, nextY, nextPlatID, platTree)
end
fun traceRightJumpAscent (x, y, remainingJump, nextPlatID, platTree, nextPlatform) =
fun traceRightDrop (enemy, nextPlatID, platTree) =
let
open GameType
val {x, y, ...}: enemy = enemy
val x = x - Constants.enemySize
in
traceRightJumpDescent (x, y, nextPlatID, platTree)
end
fun traceRightJumpAscent (x, y, remainingJump, nextPlatID, platTree) =
if remainingJump >= Constants.jumpLimit then
traceRightJumpDescent (x, y, nextPlatID, platTree)
else
@@ -42,22 +51,23 @@ struct
val nextJump = remainingJump + Constants.moveEnemyBy
in
shouldJumpRight orelse
traceRightJumpAscent (nextX, nextY, nextJump, nextPlatID, platTree, nextPlatform)
traceRightJumpAscent (nextX, nextY, nextJump, nextPlatID, platTree)
end
fun traceRightJump (enemy, nextPlatID, platTree, nextPlat) =
fun traceRightJump (enemy, nextPlatID, platTree) =
let
open GameType
val {x, y, ...}: enemy = enemy
val x = x - Constants.enemySize
in
if EnemyPhysics.standingOnArea (x, y, platTree) then
traceRightJumpAscent (x, y, 0, nextPlatID, platTree, nextPlat)
traceRightJumpAscent (x, y, 0, nextPlatID, platTree)
else
case #yAxis enemy of
JUMPING amt =>
traceRightJumpAscent (x, y, amt, nextPlatID, platTree, nextPlat)
traceRightJumpAscent (x, y, amt, nextPlatID, platTree)
| ON_GROUND =>
traceRightJumpAscent (x, y, 0, nextPlatID, platTree, nextPlat)
traceRightJumpAscent (x, y, 0, nextPlatID, platTree)
| FALLING =>
traceRightJumpDescent (x, y, nextPlatID, platTree)
| DROP_BELOW_PLATFORM =>