; Compatibility of stage-1 fixes with newer weapon/modal/lighting systems.
.code
RunIntegrationChecks PROC
    call ResetCombatFixture
    mov isGamePaused, 1
    mov keyForward, 1
    mov playerAttackCooldown, 4
    call UpdatePlayer
    call UpdateEntities
    call UpdateCombat
    CHECK playerX, 160 ; pause freezes player movement through production procedure
    CHECK [spriteList].SpriteStruct.x, 288 ; pause freezes guard AI through production procedure
    CHECK playerAttackCooldown, 4 ; pause freezes weapon cooldowns
    CHECK playerAmmo, 50 ; pause preserves ammunition
    mov isGamePaused, 0
    mov keyForward, 0
    call UpdatePlayer
    mov gameDialogActive, 1
    call UpdateEntities
    call UpdateCombat
    CHECK [spriteList].SpriteStruct.x, 288 ; modal dialogue freezes guards
    CHECK playerAmmo, 50 ; modal dialogue cannot fire
    mov gameDialogActive, 0
    mov gameMode, GAME_MODE_ADVENTURE
    call UpdateCombat
    CHECK entityHealth, 100 ; peaceful adventure mode cannot damage targets
    call ResetCombatFixture
    mov isPlayerDead, 1
    mov transitionCount, 1
    mov [transitionList].LevelTransition.triggerCellX, 2
    mov [transitionList].LevelTransition.triggerCellY, 2
    mov [transitionList].LevelTransition.fadeEffect, 1
    mov portalLatchCell, -1
    call UpdatePlayer
    CHECK fadeState, 0 ; dead player cannot activate a room transition

    call ResetCombatFixture
    mov playerWeapon, WEAPON_KNIFE
    call UpdateCombat
    CHECK entityHealth, 100 ; knife cannot hit beyond its world range
    CHECK playerAmmo, 50 ; knife consumes no ammunition
    mov playerAttackCooldown, 0
    mov [spriteList].SpriteStruct.x, 208
    call UpdateCombat
    CHECK entityHealth, 70 ; knife retains its close-range damage after merge
    call ResetCombatFixture
    mov playerWeapon, WEAPON_SHOTGUN
    mov [spriteList].SpriteStruct.y, 184
    call UpdateCombat
    CHECK entityHealth, 30 ; shotgun retains wider world-space hitbox and damage
    CHECK playerAmmo, 48 ; shotgun consumes two rounds
    mov eax, [lightSources+14*sizeof LightSource].LightSource.flags
    and eax, LIGHT_FLAG_ACTIVE
    CHECK eax, 1 ; shotgun spawns muzzle light in reserved slot

    call ResetCombatFixture
    mov [spriteList].SpriteStruct.textureId, 11
    mov [spriteList].SpriteStruct.flags, 06026400h
    call InitEntities
    call UpdateCombat
    CHECK [spriteList].SpriteStruct.textureId, 11 ; explicit Prop with barrel texture cannot explode
    mov [spriteList].SpriteStruct.flags, 0
    call InitEntities
    CHECK entityType, ENTITY_TYPE_BARREL ; legacy barrel archetype matches editor fallback

    ; Real explosion with a nearby guard: CDQ must not destroy sprite pointer.
    call ResetCombatFixture
    mov [spriteList].SpriteStruct.textureId, 11
    mov [spriteList].SpriteStruct.flags, ENTITY_TYPE_BARREL
    mov spriteCount, 2
    mov esi, OFFSET spriteList+sizeof SpriteStruct
    mov [esi].SpriteStruct.x, 352
    mov [esi].SpriteStruct.y, 160
    mov [esi].SpriteStruct.textureId, 13
    mov [esi].SpriteStruct.scale, FIXED_ONE
    mov [esi].SpriteStruct.flags, 0
    call InitEntities
    call UpdateCombat
    CHECK [spriteList].SpriteStruct.textureId, 0 ; explicit barrel still explodes on hitscan
    CHECK entityHealth[4], 40 ; blast damages nearby guard without corrupting pointer
    mov eax, [lightSources+15*sizeof LightSource].LightSource.flags
    and eax, LIGHT_FLAG_ACTIVE
    CHECK eax, 1 ; explosion spawns light in reserved slot
    ret
RunIntegrationChecks ENDP