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TombEngine/TR5Main/Game/Lara/lara_tests.cpp
Sezz 02d7433405 Fix jump stutter on steps
2021-12-13 16:12:33 +11:00

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#include "framework.h"
#include "lara.h"
#include "lara_tests.h"
#include "input.h"
#include "level.h"
#include "animation.h"
#include "lara_climb.h"
#include "lara_helpers.h"
#include "lara_monkey.h"
#include "lara_collide.h"
#include "lara_flare.h"
#include "control/control.h"
#include "control/los.h"
#include "items.h"
#include "Renderer11.h"
#include "Scripting/GameFlowScript.h"
using namespace TEN::Renderer;
using namespace TEN::Floordata;
// -----------------------------
// TEST FUNCTIONS
// For State Control & Collision
// -----------------------------
// Test if a ledge in front of item is valid to climb.
bool TestValidLedge(ITEM_INFO* item, COLL_INFO* coll, bool ignoreHeadroom, bool heightLimit)
{
// Determine probe base point.
// We use 1/3 radius extents here for two purposes. First - we can't guarantee that
// shifts weren't already applied and misfire may occur. Second - it guarantees
// that Lara won't land on a very thin edge of diagonal geometry.
int xf = phd_sin(coll->NearestLedgeAngle) * (coll->Setup.Radius * 1.3f);
int zf = phd_cos(coll->NearestLedgeAngle) * (coll->Setup.Radius * 1.3f);
// Determine probe left/right points
int xl = xf + phd_sin(coll->NearestLedgeAngle - ANGLE(90)) * coll->Setup.Radius;
int zl = zf + phd_cos(coll->NearestLedgeAngle - ANGLE(90)) * coll->Setup.Radius;
int xr = xf + phd_sin(coll->NearestLedgeAngle + ANGLE(90)) * coll->Setup.Radius;
int zr = zf + phd_cos(coll->NearestLedgeAngle + ANGLE(90)) * coll->Setup.Radius;
// Determine probe top point
int y = item->pos.yPos - coll->Setup.Height;
// Get floor heights at both points
auto left = GetCollisionResult(item->pos.xPos + xl, y, item->pos.zPos + zl, GetRoom(item->location, item->pos.xPos, y, item->pos.zPos).roomNumber).Position.Floor;
auto right = GetCollisionResult(item->pos.xPos + xr, y, item->pos.zPos + zr, GetRoom(item->location, item->pos.xPos, y, item->pos.zPos).roomNumber).Position.Floor;
//g_Renderer.addDebugSphere(Vector3(item->pos.xPos + xl, left, item->pos.zPos + zl), 64, Vector4::One, RENDERER_DEBUG_PAGE::LOGIC_STATS);
//g_Renderer.addDebugSphere(Vector3(item->pos.xPos + xr, right, item->pos.zPos + zr), 64, Vector4::One, RENDERER_DEBUG_PAGE::LOGIC_STATS);
// Determine allowed slope difference for a given collision radius
auto slopeDelta = ((float)STEPUP_HEIGHT / (float)WALL_SIZE) * (coll->Setup.Radius * 2);
// If specified, limit vertical search zone only to nearest height
if (heightLimit && (abs(left - y) > CLICK(0.5f) || abs(right - y) > CLICK(0.5f)))
return false;
// Discard if there is a slope beyond tolerance delta
if (abs(left - right) >= slopeDelta)
return false;
// Discard if ledge is not within distance threshold
if (abs(coll->NearestLedgeDistance) > coll->Setup.Radius)
return false;
// Discard if ledge is not within angle threshold
if (!TestValidLedgeAngle(item, coll))
return false;
if (!ignoreHeadroom)
{
auto headroom = (coll->Front.Floor + coll->Setup.Height) - coll->Middle.Ceiling;
if (headroom < CLICK(1))
return false;
}
return (coll->CollisionType == CT_FRONT);
}
bool TestValidLedgeAngle(ITEM_INFO* item, COLL_INFO* coll)
{
return abs((short) (coll->NearestLedgeAngle - item->pos.yRot)) <= LARA_GRAB_THRESHOLD;
}
bool TestLaraVault(ITEM_INFO* item, COLL_INFO* coll)
{
LaraInfo*& info = item->data;
if (!(TrInput & IN_ACTION) || info->gunStatus != LG_HANDS_FREE)
return false;
if (TestLaraSwamp(item) && info->waterSurfaceDist < -CLICK(3))
return false;
if (TestValidLedge(item, coll))
{
bool success = false;
// Vault to crouch up one step.
if (coll->Front.Floor < 0 && // Lower floor bound.
coll->Front.Floor > -STEPUP_HEIGHT && // Upper floor bound.
g_GameFlow->Animations.CrawlExtended)
{
if (abs((coll->Front.Ceiling - coll->Setup.Height) - coll->Front.Floor) > LARA_HEIGHT_CRAWL) // Front clamp buffer. Presumably, nothing more is necessary, but tend to this in the future. @Sezz 2021.11.06
{
item->animNumber = LA_VAULT_TO_CROUCH_1CLICK;
item->currentAnimState = LS_GRABBING;
item->frameNumber = GetFrameNumber(item, 0);
item->goalAnimState = LS_CROUCH_IDLE;
item->pos.yPos += coll->Front.Floor + CLICK(1);
info->gunStatus = LG_HANDS_BUSY;
success = true;
}
}
// Vault up two steps.
else if (coll->Front.Floor <= -STEPUP_HEIGHT && // Lower floor bound.
coll->Front.Floor >= -CLICK(2.5f)) // Upper floor bound.
{
// Vault to stand up two steps.
if (abs((coll->Front.Ceiling - coll->Setup.Height) - coll->Front.Floor) > LARA_HEIGHT) // Front clamp buffer. BUG: Turned away from the ledge and toward a section with a low ceiling, stand-to-crawl vault will be performed instead. @Sezz 2021.11.06
{
item->animNumber = LA_VAULT_TO_STAND_2CLICK_START;
item->currentAnimState = LS_GRABBING;
item->frameNumber = GetFrameNumber(item, 0);
item->goalAnimState = LS_IDLE;
item->pos.yPos += coll->Front.Floor + CLICK(2);
info->gunStatus = LG_HANDS_BUSY;
success = true;
}
// Vault to crouch up two steps.
else if (abs((coll->Front.Ceiling - coll->Setup.Height) - coll->Front.Floor) > LARA_HEIGHT_CRAWL && // Front clamp buffer.
abs((coll->FrontLeft.Ceiling - coll->Setup.Height) - coll->FrontLeft.Floor) > LARA_HEIGHT_CRAWL && // Left clamp buffer.
abs((coll->FrontRight.Ceiling - coll->Setup.Height) - coll->FrontRight.Floor) > LARA_HEIGHT_CRAWL && // Right clamp buffer.
g_GameFlow->Animations.CrawlExtended)
{
item->animNumber = LA_VAULT_TO_CROUCH_2CLICK;
item->frameNumber = GetFrameNumber(item, 0);
item->currentAnimState = LS_GRABBING;
item->goalAnimState = LS_CROUCH_IDLE;
item->pos.yPos += coll->Front.Floor + CLICK(2);
info->gunStatus = LG_HANDS_BUSY;
success = true;
}
}
// Vault up three steps.
else if (coll->Front.Floor <= -CLICK(2.5f) && // Lower floor bound.
coll->Front.Floor >= -CLICK(3.5f)) // Upper floor bound.
{
// Vault to stand up three steps.
if (abs((coll->Front.Ceiling - coll->Setup.Height) - coll->Front.Floor) > LARA_HEIGHT) // Front clamp buffer. BUG: Turned away from the ledge and toward a section with a low ceiling, stand-to-crawl vault will be performed instead. @Sezz 2021.11.06
{
item->animNumber = LA_VAULT_TO_STAND_3CLICK;
item->currentAnimState = LS_GRABBING;
item->frameNumber = GetFrameNumber(item, 0);
item->goalAnimState = LS_IDLE;
item->pos.yPos += coll->Front.Floor + CLICK(3);
info->gunStatus = LG_HANDS_BUSY;
success = true;
}
// Vault to crouch up three steps.
else if (abs((coll->Front.Ceiling - coll->Setup.Height) - coll->Front.Floor) > LARA_HEIGHT_CRAWL && // Front clamp buffer.
abs((coll->FrontLeft.Ceiling - coll->Setup.Height) - coll->FrontLeft.Floor) > LARA_HEIGHT_CRAWL && // Left clamp buffer.
abs((coll->FrontRight.Ceiling - coll->Setup.Height) - coll->FrontRight.Floor) > LARA_HEIGHT_CRAWL && // Right clamp buffer.
g_GameFlow->Animations.CrawlExtended)
{
item->animNumber = LA_VAULT_TO_CROUCH_3CLICK;
item->frameNumber = GetFrameNumber(item, 0);
item->currentAnimState = LS_GRABBING;
item->goalAnimState = LS_CROUCH_IDLE;
item->pos.yPos += coll->Front.Floor + CLICK(3);
info->gunStatus = LG_HANDS_BUSY;
success = true;
}
}
// Auto jump.
else if (coll->Front.Floor >= -CLICK(7.5f) && // Upper floor bound.
coll->Front.Floor <= -CLICK(3.5f) && // Lower floor bound.
!TestLaraSwamp(item))
{
item->animNumber = LA_STAND_SOLID;
item->frameNumber = GetFrameNumber(item, 0);
item->goalAnimState = LS_JUMP_UP;
item->currentAnimState = LS_IDLE;
info->calcFallSpeed = -3 - sqrt(-9600 - 12 * coll->Front.Floor);
AnimateLara(item);
success = true;
}
if (success)
{
SnapItemToLedge(item, coll, 0.2f);
return true;
}
}
// Begin ladder climb.
if (info->climbStatus)
{
if (coll->Front.Floor > -CLICK(7.5f) || // Upper front floor bound.
coll->FrontLeft.Floor > -CLICK(7.5f) || // Upper left floor bound.
coll->FrontRight.Floor > -CLICK(2) || // Upper right floor bound.
coll->Middle.Ceiling > -CLICK(4.5f) + 6 || // Upper ceiling bound.
info->waterStatus == LW_WADE)
{
if ((coll->Front.Floor < -WALL_SIZE || coll->Front.Ceiling >= (CLICK(2) - 6)) &&
coll->Middle.Ceiling <= -(CLICK(2) + 6))
{
if (TestLaraClimbStance(item, coll))
{
item->animNumber = LA_STAND_SOLID;
item->frameNumber = GetFrameNumber(item, 0);
item->goalAnimState = LS_LADDER_IDLE;
item->currentAnimState = LS_IDLE;
info->gunStatus = LG_HANDS_BUSY;
info->turnRate = 0;
ShiftItem(item, coll);
SnapItemToGrid(item, coll); // HACK: until fragile ladder code is refactored, we must exactly snap to grid.
AnimateLara(item);
return true;
}
}
return false;
}
// Auto jump to ladder. TODO: Check swamps.
item->animNumber = LA_STAND_SOLID;
item->frameNumber = GetFrameNumber(item, 0);
item->goalAnimState = LS_JUMP_UP;
item->currentAnimState = LS_IDLE;
info->calcFallSpeed = -116;
info->turnRate = 0;
ShiftItem(item, coll);
SnapItemToGrid(item, coll); // HACK: until fragile ladder code is refactored, we must exactly snap to grid.
AnimateLara(item);
return true;
}
// Auto jump to monkey swing.
if (info->canMonkeySwing &&
!TestLaraSwamp(item) &&
Lara.canMonkeySwing && g_GameFlow->Animations.MonkeyAutoJump)
{
short roomNum = item->roomNumber;
int ceiling = (GetCeiling(GetFloor(item->pos.xPos, item->pos.yPos, item->pos.zPos, &roomNum),
item->pos.xPos, item->pos.yPos, item->pos.zPos))-(item->pos.yPos);
if (ceiling > CLICK(7) ||
ceiling < -CLICK(7) ||
abs(ceiling) == CLICK(3))
{
return false;
}
item->animNumber = LA_STAND_IDLE;
item->frameNumber = GetFrameNumber(item, 0);
item->goalAnimState = LS_JUMP_UP;
item->currentAnimState = LS_MONKEY_VAULT;
return true;
}
return false;
}
bool TestLaraKeepCrouched(ITEM_INFO* item, COLL_INFO* coll)
{
// TODO: Temporary. coll->Setup.Radius is currently only set to
// LARA_RAD_CRAWL in the collision function, then reset by LaraAboveWater().
// For tests called in control functions, then, it will store the wrong radius. @Sezz 2021.11.05
auto radius = (item->currentAnimState == LS_CROUCH_IDLE ||
item->currentAnimState == LS_CROUCH_TURN_LEFT ||
item->currentAnimState == LS_CROUCH_TURN_RIGHT)
? LARA_RAD : LARA_RAD_CRAWL;
auto y = item->pos.yPos;
auto probeBack = GetCollisionResult(item, item->pos.yRot + ANGLE(180.0f), radius, 0);
// TODO: Cannot use as a failsafe in standing states; bugged with slanted ceilings reaching the ground.
// In common setups, Lara may embed on such ceilings, resulting in inappropriate crouch state dispatches.
// A buffer might help, but improved collision handling would presumably eliminate this issue entirely. @Sezz 2021.10.15
if ((coll->Middle.Ceiling - LARA_HEIGHT_CRAWL) >= -LARA_HEIGHT || // Middle is not a clamp.
(coll->Front.Ceiling - LARA_HEIGHT_CRAWL) >= -LARA_HEIGHT || // Front is not a clamp.
(probeBack.Position.Ceiling - y) >= -LARA_HEIGHT) // Back is not a clamp.
{
return true;
}
return false;
}
bool TestLaraSlide(ITEM_INFO* item, COLL_INFO* coll)
{
LaraInfo*& info = item->data;
if (TestLaraSwamp(item))
return false;
static short oldAngle = 1;
if (abs(coll->TiltX) <= 2 && abs(coll->TiltZ) <= 2)
return false;
short angle = ANGLE(0.0f);
if (coll->TiltX > 2)
angle = -ANGLE(90.0f);
else if (coll->TiltX < -2)
angle = ANGLE(90.0f);
if (coll->TiltZ > 2 && coll->TiltZ > abs(coll->TiltX))
angle = ANGLE(180.0f);
else if (coll->TiltZ < -2 && -coll->TiltZ > abs(coll->TiltX))
angle = ANGLE(0.0f);
short delta = angle - item->pos.yRot;
ShiftItem(item, coll);
if (delta < -ANGLE(90.0f) || delta > ANGLE(90.0f))
{
if (item->currentAnimState == LS_SLIDE_BACK && oldAngle == angle)
return true;
SetAnimation(item, LA_SLIDE_BACK_START);
item->pos.yRot = angle + ANGLE(180.0f);
}
else
{
if (item->currentAnimState == LS_SLIDE_FORWARD && oldAngle == angle)
return true;
SetAnimation(item, LA_SLIDE_FORWARD);
item->pos.yRot = angle;
}
info->moveAngle = angle;
oldAngle = angle;
return true;
}
bool TestLaraSwamp(ITEM_INFO* item)
{
return (g_Level.Rooms[item->roomNumber].flags & ENV_FLAG_SWAMP);
}
bool TestLaraWater(ITEM_INFO* item)
{
return (g_Level.Rooms[item->roomNumber].flags & ENV_FLAG_WATER);
}
SPLAT_COLL TestLaraWall(ITEM_INFO* item, int front, int right, int down)
{
int x = item->pos.xPos;
int y = item->pos.yPos + down;
int z = item->pos.zPos;
short angle = GetQuadrant(item->pos.yRot);
short roomNum = item->roomNumber;
switch (angle)
{
case NORTH:
x -= right;
break;
case EAST:
z -= right;
break;
case SOUTH:
x += right;
break;
case WEST:
z += right;
break;
default:
break;
}
GetFloor(x, y, z, &roomNum);
switch (angle)
{
case NORTH:
z += front;
break;
case EAST:
x += front;
break;
case SOUTH:
z -= front;
break;
case WEST:
x -= front;
break;
default:
break;
}
auto floor = GetFloor(x, y, z, &roomNum);
auto floorHeight = GetFloorHeight(floor, x, y, z);
auto ceilHeight = GetCeiling(floor, x, y, z);
if (floorHeight == NO_HEIGHT)
return SPLAT_COLL::WALL;
if (y >= floorHeight || y <= ceilHeight)
return SPLAT_COLL::STEP;
return SPLAT_COLL::NONE;
}
bool TestLaraHangJumpUp(ITEM_INFO* item, COLL_INFO* coll)
{
LaraInfo*& info = item->data;
if (!(TrInput & IN_ACTION) || (info->gunStatus != LG_HANDS_FREE) || (coll->HitStatic))
return false;
if (info->canMonkeySwing && coll->CollisionType == CT_TOP)
{
SetAnimation(item, LA_JUMP_UP_TO_MONKEYSWING);
item->gravityStatus = false;
item->speed = 0;
item->fallspeed = 0;
info->gunStatus = LG_HANDS_BUSY;
MonkeySwingSnap(item, coll);
return true;
}
if ((coll->CollisionType != CT_FRONT) || (coll->Middle.Ceiling > -STEPUP_HEIGHT))
return false;
int edge;
auto edgeCatch = TestLaraEdgeCatch(item, coll, &edge);
if (!edgeCatch)
return false;
bool ladder = TestLaraHangOnClimbWall(item, coll);
if (!(ladder && edgeCatch) &&
!(TestValidLedge(item, coll, true, true) && edgeCatch > 0))
return false;
auto angle = item->pos.yRot;
if (TestHangSwingIn(item, angle))
{
SetAnimation(item, LA_JUMP_UP_TO_MONKEYSWING);
}
else
{
SetAnimation(item, LA_REACH_TO_HANG, 12);
}
auto bounds = GetBoundsAccurate(item);
if (edgeCatch <= 0)
item->pos.yPos = edge - bounds->Y1 + 4;
else
item->pos.yPos += coll->Front.Floor - bounds->Y1;
if (ladder)
SnapItemToGrid(item, coll); // HACK: until fragile ladder code is refactored, we must exactly snap to grid.
else
SnapItemToLedge(item, coll);
item->gravityStatus = false;
item->speed = 0;
item->fallspeed = 0;
info->gunStatus = LG_HANDS_BUSY;
info->torsoYrot = 0;
info->torsoXrot = 0;
return true;
}
bool TestLaraHangJump(ITEM_INFO* item, COLL_INFO* coll)
{
LaraInfo*& info = item->data;
if (!(TrInput & IN_ACTION) || (info->gunStatus != LG_HANDS_FREE) || (coll->HitStatic))
return false;
if (info->canMonkeySwing && coll->CollisionType == CT_TOP)
{
ResetLaraFlex(item);
info->gunStatus = LG_HANDS_BUSY;
SetAnimation(item, LA_REACH_TO_MONKEYSWING);
item->gravityStatus = false;
item->speed = 0;
item->fallspeed = 0;
return true;
}
if ((coll->Middle.Ceiling > -STEPUP_HEIGHT) ||
(coll->Middle.Floor < 200) ||
(coll->CollisionType != CT_FRONT))
return false;
int edge;
auto edgeCatch = TestLaraEdgeCatch(item, coll, &edge);
if (!edgeCatch)
return false;
bool ladder = TestLaraHangOnClimbWall(item, coll);
if (!(ladder && edgeCatch) &&
!(TestValidLedge(item, coll, true, true) && edgeCatch > 0))
return false;
auto angle = item->pos.yRot;
if (TestHangSwingIn(item, angle))
{
if (g_GameFlow->Animations.OscillateHang)
{
ResetLaraFlex(item);
SetAnimation(item, LA_REACH_TO_HANG_OSCILLATE);
}
else
{
ResetLaraFlex(item);
SetAnimation(item, LA_REACH_TO_MONKEYSWING);
}
}
else
SetAnimation(item, LA_REACH_TO_HANG);
auto bounds = GetBoundsAccurate(item);
if (edgeCatch <= 0)
{
item->pos.yPos = edge - bounds->Y1 - 20;
item->pos.yRot = coll->NearestLedgeAngle;
}
else
item->pos.yPos += coll->Front.Floor - bounds->Y1 - 20;
if (ladder)
SnapItemToGrid(item, coll); // HACK: until fragile ladder code is refactored, we must exactly snap to grid.
else
SnapItemToLedge(item, coll, 0.2f);
item->gravityStatus = true;
item->speed = 2;
item->fallspeed = 1;
info->gunStatus = LG_HANDS_BUSY;
return true;
}
bool TestLaraHang(ITEM_INFO* item, COLL_INFO* coll)
{
LaraInfo*& info = item->data;
auto angle = info->moveAngle;
auto climbShift = 0;
if (info->moveAngle == (short)(item->pos.yRot - ANGLE(90.0f)))
climbShift = -coll->Setup.Radius;
else if (info->moveAngle == (short)(item->pos.yRot + ANGLE(90.0f)))
climbShift = coll->Setup.Radius;
// Temporarily move item a bit closer to the wall to get more precise coll results
auto oldPos = item->pos;
item->pos.xPos += phd_sin(item->pos.yRot) * coll->Setup.Radius * 0.5f;
item->pos.zPos += phd_cos(item->pos.yRot) * coll->Setup.Radius * 0.5f;
// Get height difference with side spaces (left or right, depending on movement direction)
auto hdif = LaraFloorFront(item, info->moveAngle, coll->Setup.Radius * 1.5f);
// Set stopped flag, if floor height is above footspace which is step size
auto stopped = hdif < CLICK(0.5f);
// Set stopped flag, if ceiling height is below headspace which is step size
if (LaraCeilingFront(item, info->moveAngle, coll->Setup.Radius * 1.5f, 0) > -950)
stopped = true;
// Backup item pos to restore it after coll tests
item->pos = oldPos;
// Setup coll info
info->moveAngle = item->pos.yRot;
coll->Setup.BadHeightDown = NO_BAD_POS;
coll->Setup.BadHeightUp = -STEPUP_HEIGHT;
coll->Setup.BadCeilingHeight = 0;
coll->Setup.ForwardAngle = info->moveAngle;
// When Lara is about to move, use larger embed offset for stabilizing diagonal shimmying)
auto embedOffset = 4;
if (TrInput & (IN_LEFT | IN_RIGHT))
embedOffset = 16;
item->pos.xPos += phd_sin(item->pos.yRot) * embedOffset;
item->pos.zPos += phd_cos(item->pos.yRot) * embedOffset;
GetCollisionInfo(coll, item);
bool result = false;
if (info->climbStatus) // Ladder case
{
if (TrInput & IN_ACTION && item->hitPoints > 0)
{
info->moveAngle = angle;
if (!TestLaraHangOnClimbWall(item, coll))
{
if (item->animNumber != LA_LADDER_TO_HANG_RIGHT &&
item->animNumber != LA_LADDER_TO_HANG_LEFT)
{
LaraSnapToEdgeOfBlock(item, coll, GetQuadrant(item->pos.yRot));
item->pos.yPos = coll->Setup.OldPosition.y;
SetAnimation(item, LA_REACH_TO_HANG, 21);
}
result = true;
}
else
{
if (item->animNumber == LA_REACH_TO_HANG && item->frameNumber == GetFrameNumber(item, 21) &&
TestLaraClimbStance(item, coll))
{
item->goalAnimState = LS_LADDER_IDLE;
}
}
}
else // Death or action release
{
SetAnimation(item, LA_FALL_START);
item->pos.yPos += 256;
item->gravityStatus = true;
item->speed = 2;
item->fallspeed = 1;
info->gunStatus = LG_HANDS_FREE;
}
}
else // Normal case
{
if (TrInput & IN_ACTION && item->hitPoints > 0 && coll->Front.Floor <= 0)
{
if (stopped && hdif > 0 && climbShift != 0 && (climbShift > 0 == coll->MiddleLeft.Floor > coll->MiddleRight.Floor))
stopped = false;
auto verticalShift = coll->Front.Floor - GetBoundsAccurate(item)->Y1;
auto x = item->pos.xPos;
auto z = item->pos.zPos;
info->moveAngle = angle;
if (climbShift != 0)
{
auto s = phd_sin(info->moveAngle);
auto c = phd_cos(info->moveAngle);
auto testShift = Vector2(s * climbShift, c * climbShift);
x += testShift.x;
z += testShift.y;
}
if ((256 << GetQuadrant(item->pos.yRot)) & GetClimbFlags(x, item->pos.yPos, z, item->roomNumber))
{
if (!TestLaraHangOnClimbWall(item, coll))
verticalShift = 0; // Ignore vertical shift if ladder is encountered next block
}
else if (!TestValidLedge(item, coll, true))
{
if ((climbShift < 0 && coll->FrontLeft.Floor != coll->Front.Floor) ||
(climbShift > 0 && coll->FrontRight.Floor != coll->Front.Floor))
stopped = true;
}
if (!stopped &&
coll->Middle.Ceiling < 0 && coll->CollisionType == CT_FRONT && !coll->HitStatic &&
abs(verticalShift) < SLOPE_DIFFERENCE && TestValidLedgeAngle(item, coll))
{
if (item->speed != 0)
SnapItemToLedge(item, coll);
item->pos.yPos += verticalShift;
}
else
{
item->pos.xPos = coll->Setup.OldPosition.x;
item->pos.yPos = coll->Setup.OldPosition.y;
item->pos.zPos = coll->Setup.OldPosition.z;
if (item->currentAnimState == LS_SHIMMY_LEFT ||
item->currentAnimState == LS_SHIMMY_RIGHT)
{
SetAnimation(item, LA_REACH_TO_HANG, 21);
}
result = true;
}
}
else // Death, incorrect ledge or action release
{
SetAnimation(item, LA_JUMP_UP, 9);
item->pos.xPos += coll->Shift.x;
item->pos.yPos += GetBoundsAccurate(item)->Y2 * 2.4f;
item->pos.zPos += coll->Shift.z;
item->gravityStatus = true;
item->speed = 2;
item->fallspeed = 1;
info->gunStatus = LG_HANDS_FREE;
}
}
return result;
}
CORNER_RESULT TestLaraHangCorner(ITEM_INFO* item, COLL_INFO* coll, float testAngle)
{
LaraInfo*& info = item->data;
// Lara isn't in stop state yet, bypass test
if (item->animNumber != LA_REACH_TO_HANG)
return CORNER_RESULT::NONE;
// Static is in the way, bypass test
if (coll->HitStatic)
return CORNER_RESULT::NONE;
// INNER CORNER TESTS
// Backup old Lara position and frontal collision
auto oldPos = item->pos;
auto oldMoveAngle = Lara.moveAngle;
// Do further testing only if test angle is equal to resulting edge angle
if (SnapAndTestItemAtNextCornerPosition(item, coll, testAngle, false))
{
// Get bounding box height for further ledge height calculations
auto bounds = GetBoundsAccurate(item);
// Store next position
info->nextCornerPos.xPos = item->pos.xPos;
info->nextCornerPos.yPos = LaraCollisionAboveFront(item, item->pos.yRot, coll->Setup.Radius * 2, abs(bounds->Y1)).Position.Floor + abs(bounds->Y1);
info->nextCornerPos.zPos = item->pos.zPos;
info->nextCornerPos.yRot = item->pos.yRot;
info->moveAngle = item->pos.yRot;
auto result = TestLaraValidHangPos(item, coll);
// Restore original item positions
item->pos = oldPos;
info->moveAngle = oldMoveAngle;
if (result)
return CORNER_RESULT::INNER;
if (info->climbStatus)
{
auto& angleSet = testAngle > 0 ? LeftExtRightIntTab : LeftIntRightExtTab;
if (GetClimbFlags(Lara.nextCornerPos.xPos, item->pos.yPos, Lara.nextCornerPos.zPos, item->roomNumber) & (short)angleSet[GetQuadrant(item->pos.yRot)])
{
Lara.nextCornerPos.yPos = item->pos.yPos; // Restore original Y pos for ladder tests because we don't snap to ledge height in such case.
return CORNER_RESULT::INNER;
}
}
}
// Restore original item positions
item->pos = oldPos;
info->moveAngle = oldMoveAngle;
// OUTER CORNER TESTS
// Test if there's a material obstacles blocking outer corner pathway
if ((LaraFloorFront(item, item->pos.yRot + ANGLE(testAngle), coll->Setup.Radius + CLICK(1)) < 0) ||
(LaraCeilingFront(item, item->pos.yRot + ANGLE(testAngle), coll->Setup.Radius + CLICK(1), coll->Setup.Height) > 0))
return CORNER_RESULT::NONE;
// Last chance for possible diagonal vs. non-diagonal cases: ray test
if (!LaraPositionOnLOS(item, item->pos.yRot + ANGLE(testAngle), coll->Setup.Radius + CLICK(1)))
return CORNER_RESULT::NONE;
bool snappable = SnapAndTestItemAtNextCornerPosition(item, coll, testAngle, true);
// Additional test if there's a material obstacles blocking outer corner pathway
if ((LaraFloorFront(item, item->pos.yRot, 0) < 0) ||
(LaraCeilingFront(item, item->pos.yRot, 0, coll->Setup.Height) > 0))
snappable = false;
// Do further testing only if test angle is equal to resulting edge angle
if (snappable)
{
// Get bounding box height for further ledge height calculations
auto bounds = GetBoundsAccurate(item);
// Store next position
info->nextCornerPos.xPos = item->pos.xPos;
info->nextCornerPos.yPos = LaraCollisionAboveFront(item, item->pos.yRot, coll->Setup.Radius * 2, abs(bounds->Y1)).Position.Floor + abs(bounds->Y1);
info->nextCornerPos.zPos = item->pos.zPos;
info->nextCornerPos.yRot = item->pos.yRot;
info->moveAngle = item->pos.yRot;
auto result = TestLaraValidHangPos(item, coll);
// Restore original item positions
item->pos = oldPos;
info->moveAngle = oldMoveAngle;
if (result)
return CORNER_RESULT::OUTER;
if (info->climbStatus)
{
auto& angleSet = testAngle > 0 ? LeftIntRightExtTab : LeftExtRightIntTab;
if (GetClimbFlags(Lara.nextCornerPos.xPos, item->pos.yPos, Lara.nextCornerPos.zPos, item->roomNumber) & (short)angleSet[GetQuadrant(item->pos.yRot)])
{
Lara.nextCornerPos.yPos = item->pos.yPos; // Restore original Y pos for ladder tests because we don't snap to ledge height in such case.
return CORNER_RESULT::OUTER;
}
}
}
// Restore original item positions
item->pos = oldPos;
info->moveAngle = oldMoveAngle;
return CORNER_RESULT::NONE;
}
bool TestLaraValidHangPos(ITEM_INFO* item, COLL_INFO* coll)
{
LaraInfo*& info = item->data;
// Get incoming ledge height and own Lara's upper bound.
// First one will be negative while first one is positive.
// Difference between two indicates difference in height between ledges.
auto frontFloor = LaraCollisionAboveFront(item, info->moveAngle, coll->Setup.Radius + CLICK(0.5f), LARA_HEIGHT).Position.Floor;
auto laraUpperBound = item->pos.yPos - coll->Setup.Height;
// If difference is above 1/2 click, return false (ledge is out of reach).
if (abs(frontFloor - laraUpperBound) > CLICK(0.5f))
return false;
// Embed Lara into wall to make collision test succeed
item->pos.xPos += phd_sin(item->pos.yRot) * 8;
item->pos.zPos += phd_cos(item->pos.yRot) * 8;
// Setup new GCI call
info->moveAngle = item->pos.yRot;
coll->Setup.BadHeightDown = NO_BAD_POS;
coll->Setup.BadHeightUp = -CLICK(2);
coll->Setup.BadCeilingHeight = 0;
coll->Setup.Mode = COLL_PROBE_MODE::FREE_FLAT;
coll->Setup.ForwardAngle = info->moveAngle;
GetCollisionInfo(coll, item);
// Filter out narrow ceiling spaces, no collision cases and statics in front.
if (coll->Middle.Ceiling >= 0 || coll->CollisionType != CT_FRONT || coll->HitStatic)
return false;
// Finally, do ordinary ledge checks (slope difference etc.)
return TestValidLedge(item, coll);
}
bool TestLaraClimbStance(ITEM_INFO* item, COLL_INFO* coll)
{
int shift_r, shift_l;
if (LaraTestClimbPos(item, coll->Setup.Radius, coll->Setup.Radius + CLICK(0.5f), -700, CLICK(2), &shift_r) != 1)
return false;
if (LaraTestClimbPos(item, coll->Setup.Radius, -(coll->Setup.Radius + CLICK(0.5f)), -700, CLICK(2), &shift_l) != 1)
return false;
if (shift_r)
{
if (shift_l)
{
if (shift_r < 0 != shift_l < 0)
return false;
if ((shift_r < 0 && shift_l < shift_r) ||
(shift_r > 0 && shift_l > shift_r))
{
item->pos.yPos += shift_l;
return true;
}
}
item->pos.yPos += shift_r;
}
else if (shift_l)
{
item->pos.yPos += shift_l;
}
return true;
}
bool TestLaraHangOnClimbWall(ITEM_INFO* item, COLL_INFO* coll)
{
LaraInfo*& info = item->data;
int shift, result;
if (info->climbStatus == 0)
return false;
if (item->fallspeed < 0)
return false;
// HACK: Climb wall tests are highly fragile and depend on quadrant shifts.
// Until climb wall tests are fully refactored, we need to recalculate COLL_INFO.
auto coll2 = *coll;
coll2.Setup.Mode = COLL_PROBE_MODE::QUADRANTS;
GetCollisionInfo(&coll2, item);
switch (GetQuadrant(item->pos.yRot))
{
case NORTH:
case SOUTH:
item->pos.zPos += coll2.Shift.z;
break;
case EAST:
case WEST:
item->pos.xPos += coll2.Shift.x;
break;
default:
break;
}
auto bounds = GetBoundsAccurate(item);
if (info->moveAngle != item->pos.yRot)
{
short l = LaraCeilingFront(item, item->pos.yRot, 0, 0);
short r = LaraCeilingFront(item, info->moveAngle, CLICK(0.5f), 0);
if (abs(l - r) > SLOPE_DIFFERENCE)
return false;
}
if (LaraTestClimbPos(item, LARA_RAD, LARA_RAD, bounds->Y1, bounds->Y2 - bounds->Y1, &shift) &&
LaraTestClimbPos(item, LARA_RAD, -LARA_RAD, bounds->Y1, bounds->Y2 - bounds->Y1, &shift))
{
result = LaraTestClimbPos(item, LARA_RAD, 0, bounds->Y1, bounds->Y2 - bounds->Y1, &shift);
if (result)
{
if (result != 1)
item->pos.yPos += shift;
return true;
}
}
return false;
}
int TestLaraEdgeCatch(ITEM_INFO* item, COLL_INFO* coll, int* edge)
{
BOUNDING_BOX* bounds = GetBoundsAccurate(item);
int hdif = coll->Front.Floor - bounds->Y1;
if (hdif < 0 == hdif + item->fallspeed < 0)
{
hdif = item->pos.yPos + bounds->Y1;
if ((hdif + item->fallspeed & 0xFFFFFF00) != (hdif & 0xFFFFFF00))
{
if (item->fallspeed > 0)
*edge = (hdif + item->fallspeed) & 0xFFFFFF00;
else
*edge = hdif & 0xFFFFFF00;
return -1;
}
return 0;
}
if (!TestValidLedge(item, coll, true))
return 0;
return 1;
}
bool TestHangSwingIn(ITEM_INFO* item, short angle)
{
LaraInfo*& info = item->data;
int x = item->pos.xPos;
int y = item->pos.yPos;
int z = item->pos.zPos;
short roomNum = item->roomNumber;
FLOOR_INFO* floor;
int floorHeight, ceilingHeight;
z += phd_cos(angle) * CLICK(0.5f);
x += phd_sin(angle) * CLICK(0.5f);
floor = GetFloor(x, y, z, &roomNum);
floorHeight = GetFloorHeight(floor, x, y, z);
ceilingHeight = GetCeiling(floor, x, y, z);
if (floorHeight != NO_HEIGHT)
{
if (g_GameFlow->Animations.OscillateHang)
{
if (floorHeight - y > 0 && ceilingHeight - y < -400)
return true;
}
else
{
if (floorHeight - y > 0 && ceilingHeight - y < -400 && (y - 819 - ceilingHeight > -72))
return true;
}
}
return false;
}
bool TestLaraHangSideways(ITEM_INFO* item, COLL_INFO* coll, short angle)
{
LaraInfo*& info = item->data;
auto oldPos = item->pos;
static constexpr auto sidewayTestDistance = 16;
item->pos.xPos += phd_sin(info->moveAngle) * sidewayTestDistance;
item->pos.zPos += phd_cos(info->moveAngle) * sidewayTestDistance;
info->moveAngle = item->pos.yRot + angle;
coll->Setup.OldPosition.y = item->pos.yPos;
auto res = TestLaraHang(item, coll);
item->pos = oldPos;
info->moveAngle = item->pos.yRot + angle;
return !res;
}
bool TestLaraStandingJump(ITEM_INFO* item, COLL_INFO* coll, short angle)
{
auto y = item->pos.yPos;
auto probe = GetCollisionResult(item, angle, CLICK(1), coll->Setup.Height);
// TODO: Ceiling test interfered with bridges. For now, behaves as original.
if (!TestLaraFacingCorner(item, angle, CLICK(1)) &&
probe.Position.Floor + probe.Position.Bridge - y >= -STEPUP_HEIGHT && // Highest floor bound.
probe.Position.Floor != NO_HEIGHT)
{
return true;
}
return false;
}
bool TestLaraFacingCorner(ITEM_INFO* item, short angle, int dist)
{
auto angle1 = angle + ANGLE(15.0f);
auto angle2 = angle - ANGLE(15.0f);
auto vec1 = GAME_VECTOR(item->pos.xPos + dist * phd_sin(angle1),
item->pos.yPos - STEPUP_HEIGHT,
item->pos.zPos + dist * phd_cos(angle1),
item->roomNumber);
auto vec2 = GAME_VECTOR(item->pos.xPos + dist * phd_sin(angle2),
item->pos.yPos - STEPUP_HEIGHT,
item->pos.zPos + dist * phd_cos(angle2),
item->roomNumber);
auto pos = GAME_VECTOR(item->pos.xPos,
item->pos.yPos - STEPUP_HEIGHT,
item->pos.zPos,
item->roomNumber);
auto result1 = LOS(&pos, &vec1);
auto result2 = LOS(&pos, &vec2);
return ((result1 == 0) && (result2 == 0));
}
bool LaraPositionOnLOS(ITEM_INFO* item, short ang, int dist)
{
auto pos1 = GAME_VECTOR(item->pos.xPos,
item->pos.yPos - LARA_HEADROOM,
item->pos.zPos,
item->roomNumber);
auto pos2 = GAME_VECTOR(item->pos.xPos,
item->pos.yPos - LARA_HEIGHT + LARA_HEADROOM,
item->pos.zPos,
item->roomNumber);
auto vec1 = GAME_VECTOR(item->pos.xPos + dist * phd_sin(ang),
item->pos.yPos - LARA_HEADROOM,
item->pos.zPos + dist * phd_cos(ang),
item->roomNumber);
auto vec2 = GAME_VECTOR(item->pos.xPos + dist * phd_sin(ang),
item->pos.yPos - LARA_HEIGHT + LARA_HEADROOM,
item->pos.zPos + dist * phd_cos(ang),
item->roomNumber);
auto result1 = LOS(&pos1, &vec1);
auto result2 = LOS(&pos2, &vec2);
return (result1 != 0 && result2 != 0);
}
int LaraFloorFront(ITEM_INFO* item, short ang, int dist)
{
return LaraCollisionFront(item, ang, dist).Position.Floor;
}
COLL_RESULT LaraCollisionFront(ITEM_INFO* item, short ang, int dist)
{
auto probe = GetCollisionResult(item, ang, dist, -LARA_HEIGHT);
if (probe.Position.Floor != NO_HEIGHT)
probe.Position.Floor -= item->pos.yPos;
return probe;
}
COLL_RESULT LaraCollisionAboveFront(ITEM_INFO* item, short ang, int dist, int h)
{
int x = item->pos.xPos + dist * phd_sin(ang);
int y = item->pos.yPos - h;
int z = item->pos.zPos + dist * phd_cos(ang);
return GetCollisionResult(x, y, z, GetCollisionResult(item->pos.xPos, y, item->pos.zPos, item->roomNumber).RoomNumber);
}
int LaraCeilingFront(ITEM_INFO* item, short ang, int dist, int h)
{
return LaraCeilingCollisionFront(item, ang, dist, h).Position.Ceiling;
}
COLL_RESULT LaraCeilingCollisionFront(ITEM_INFO* item, short ang, int dist, int h)
{
auto probe = GetCollisionResult(item, ang, dist, -h);
if (probe.Position.Ceiling != NO_HEIGHT)
probe.Position.Ceiling += h - item->pos.yPos;
return probe;
}
bool TestLaraFall(ITEM_INFO* item, COLL_INFO* coll)
{
LaraInfo*& info = item->data;
if (coll->Middle.Floor <= STEPUP_HEIGHT ||
info->waterStatus == LW_WADE) // TODO: This causes a legacy floor snap bug when lara wades off a ledge into a dry room. @Sezz 2021.09.26
{
return false;
}
return true;
}
// TODO: Gradually replace calls.
bool LaraFallen(ITEM_INFO* item, COLL_INFO* coll)
{
LaraInfo*& info = item->data;
if (info->waterStatus == LW_WADE || coll->Middle.Floor <= STEPUP_HEIGHT)
return false;
SetAnimation(item, LA_FALL_START);
item->fallspeed = 0;
item->gravityStatus = true;
return true;
}
bool LaraLandedBad(ITEM_INFO* item, COLL_INFO* coll)
{
int landspeed = item->fallspeed - 140;
if (landspeed > 0)
{
if (landspeed <= 14)
{
item->hitPoints -= 1000 * SQUARE(landspeed) / 196;
return item->hitPoints <= 0;
}
else
{
item->hitPoints = -1;
return true;
}
}
return false;
}
bool TestLaraWaterStepOut(ITEM_INFO* item, COLL_INFO* coll)
{
LaraInfo*& info = item->data;
if (coll->CollisionType == CT_FRONT ||
coll->Middle.Slope ||
coll->Middle.Floor >= 0)
{
return false;
}
if (coll->Middle.Floor >= -CLICK(0.5f))
{
SetAnimation(item, LA_STAND_IDLE);
}
else
{
SetAnimation(item, LA_ONWATER_TO_WADE_1CLICK);
item->goalAnimState = LS_IDLE;
}
item->pos.yPos += coll->Middle.Floor + CLICK(2.75f) - 9;
UpdateItemRoom(item, -(STEPUP_HEIGHT - 3));
item->pos.zRot = 0;
item->pos.xRot = 0;
item->gravityStatus = false;
item->speed = 0;
item->fallspeed = 0;
info->waterStatus = LW_WADE;
return true;
}
bool TestLaraWaterClimbOut(ITEM_INFO* item, COLL_INFO* coll)
{
LaraInfo*& info = item->data;
if (coll->CollisionType != CT_FRONT || !(TrInput & IN_ACTION))
return false;
if (info->gunStatus &&
(info->gunStatus != LG_READY || info->gunType != WEAPON_FLARE))
{
return false;
}
if (coll->Middle.Ceiling > -STEPUP_HEIGHT)
return false;
int frontFloor = coll->Front.Floor + LARA_HEIGHT_SURFSWIM;
if (frontFloor <= -CLICK(2) ||
frontFloor > CLICK(1.25f) - 4)
{
return false;
}
if (!TestValidLedge(item, coll))
return false;
auto surface = LaraCollisionAboveFront(item, coll->Setup.ForwardAngle, CLICK(2), CLICK(1));
auto headroom = surface.Position.Floor - surface.Position.Ceiling;
if (frontFloor <= -CLICK(1))
{
if (headroom < LARA_HEIGHT)
{
if (g_GameFlow->Animations.CrawlExtended)
SetAnimation(item, LA_ONWATER_TO_CROUCH_1CLICK);
else
return false;
}
else
SetAnimation(item, LA_ONWATER_TO_STAND_1CLICK);
}
else if (frontFloor > CLICK(0.5f))
{
if (headroom < LARA_HEIGHT)
{
if (g_GameFlow->Animations.CrawlExtended)
SetAnimation(item, LA_ONWATER_TO_CROUCH_M1CLICK);
else
return false;
}
else
SetAnimation(item, LA_ONWATER_TO_STAND_M1CLICK);
}
else
{
if (headroom < LARA_HEIGHT)
{
if (g_GameFlow->Animations.CrawlExtended)
SetAnimation(item, LA_ONWATER_TO_CROUCH_0CLICK);
else
return false;
}
else
SetAnimation(item, LA_ONWATER_TO_STAND_0CLICK);
}
UpdateItemRoom(item, -LARA_HEIGHT / 2);
SnapItemToLedge(item, coll, 1.7f);
item->pos.yPos += frontFloor - 5;
item->currentAnimState = LS_ONWATER_EXIT;
item->gravityStatus = false;
item->speed = 0;
item->fallspeed = 0;
info->gunStatus = LG_HANDS_BUSY;
info->waterStatus = LW_ABOVE_WATER;
return true;
}
bool TestLaraLadderClimbOut(ITEM_INFO* item, COLL_INFO* coll) // NEW function for water to ladder move
{
LaraInfo*& info = item->data;
if (!(TrInput & IN_ACTION) ||
!info->climbStatus ||
coll->CollisionType != CT_FRONT)
{
return false;
}
if (info->gunStatus &&
(info->gunStatus != LG_READY || info->gunType != WEAPON_FLARE))
{
return false;
}
if (!TestLaraClimbStance(item, coll))
return false;
short rot = item->pos.yRot;
if (rot >= -ANGLE(35.0f) && rot <= ANGLE(35.0f))
rot = 0;
else if (rot >= ANGLE(55.0f) && rot <= ANGLE(125.0f))
rot = ANGLE(90.0f);
else if (rot >= ANGLE(145.0f) || rot <= -ANGLE(145.0f))
rot = ANGLE(180.0f);
else if (rot >= -ANGLE(125.0f) && rot <= -ANGLE(55.0f))
rot = -ANGLE(90.0f);
if (rot & 0x3FFF)
return false;
switch ((unsigned short)rot / ANGLE(90.0f))
{
case NORTH:
item->pos.zPos = (item->pos.zPos | (WALL_SIZE - 1)) - LARA_RAD - 1;
break;
case EAST:
item->pos.xPos = (item->pos.xPos | (WALL_SIZE - 1)) - LARA_RAD - 1;
break;
case SOUTH:
item->pos.zPos = (item->pos.zPos & -WALL_SIZE) + LARA_RAD + 1;
break;
case WEST:
item->pos.xPos = (item->pos.xPos & -WALL_SIZE) + LARA_RAD + 1;
break;
}
SetAnimation(item, LA_ONWATER_IDLE);
item->goalAnimState = LS_LADDER_IDLE;
AnimateLara(item);
item->pos.yRot = rot;
item->pos.yPos -= 10;//otherwise she falls back into the water
item->pos.zRot = 0;
item->pos.xRot = 0;
item->gravityStatus = false;
item->speed = 0;
item->fallspeed = 0;
info->gunStatus = LG_HANDS_BUSY;
info->waterStatus = LW_ABOVE_WATER;
return true;
}
void TestLaraWaterDepth(ITEM_INFO* item, COLL_INFO* coll)
{
LaraInfo*& info = item->data;
short roomNumber = item->roomNumber;
FLOOR_INFO* floor = GetFloor(item->pos.xPos, item->pos.yPos, item->pos.zPos, &roomNumber);
int waterDepth = GetWaterDepth(item->pos.xPos, item->pos.yPos, item->pos.zPos, roomNumber);
if (waterDepth == NO_HEIGHT)
{
item->fallspeed = 0;
item->pos.xPos = coll->Setup.OldPosition.x;
item->pos.yPos = coll->Setup.OldPosition.y;
item->pos.zPos = coll->Setup.OldPosition.z;
}
// Height check was at CLICK(2) before but changed to this
// because now Lara surfaces on a head level, not mid-body level.
else if (waterDepth <= LARA_HEIGHT - LARA_HEADROOM / 2)
{
SetAnimation(item, LA_UNDERWATER_TO_STAND);
item->goalAnimState = LS_IDLE;
item->pos.zRot = 0;
item->pos.xRot = 0;
item->speed = 0;
item->fallspeed = 0;
item->gravityStatus = false;
info->waterStatus = LW_WADE;
item->pos.yPos = GetFloorHeight(floor, item->pos.xPos, item->pos.yPos, item->pos.zPos);
}
}
#ifndef NEW_TIGHTROPE
void GetTighRopeFallOff(int regularity) {
if (LaraItem->hitPoints <= 0 || LaraItem->hitStatus)
SetAnimation(LaraItem, LA_TIGHTROPE_FALL_LEFT);
if (!info->tightRopeFall && !(GetRandomControl() & regularity))
info->tightRopeFall = 2 - ((GetRandomControl() & 0xF) != 0);
}
#endif
bool IsStandingWeapon(LARA_WEAPON_TYPE gunType)
{
if (gunType == LARA_WEAPON_TYPE::WEAPON_SHOTGUN ||
gunType == LARA_WEAPON_TYPE::WEAPON_HK ||
gunType == LARA_WEAPON_TYPE::WEAPON_CROSSBOW ||
gunType == LARA_WEAPON_TYPE::WEAPON_TORCH ||
gunType == LARA_WEAPON_TYPE::WEAPON_GRENADE_LAUNCHER ||
gunType == LARA_WEAPON_TYPE::WEAPON_HARPOON_GUN ||
gunType == LARA_WEAPON_TYPE::WEAPON_ROCKET_LAUNCHER ||
gunType == LARA_WEAPON_TYPE::WEAPON_SNOWMOBILE)
{
return true;
}
return false;
}
bool TestLaraPose(ITEM_INFO* item, COLL_INFO* coll)
{
LaraInfo*& info = item->data;
if (!TestLaraSwamp(item) &&
info->gunStatus == LG_HANDS_FREE && // Hands are free.
!(TrInput & (IN_FLARE | IN_DRAW)) && // Avoid unsightly concurrent actions.
(info->gunType != WEAPON_FLARE || info->flareAge > 0) && // Flare is not being handled. TODO: Will she pose with weapons drawn?
info->Vehicle == NO_ITEM) // Not in a vehicle.
{
return true;
}
return false;
}
bool TestLaraStep(COLL_INFO* coll)
{
if (abs(coll->Middle.Floor) > 0 &&
//coll->Middle.Floor <= STEPUP_HEIGHT && // Lower floor bound. BUG: Wading in water over a pit, Lara will not descend.
coll->Middle.Floor >= -STEPUP_HEIGHT && // Upper floor bound.
coll->Middle.Floor != NO_HEIGHT)
{
return true;
}
return false;
}
bool TestLaraStepUp(ITEM_INFO* item, COLL_INFO* coll)
{
if (coll->Middle.Floor < -CLICK(0.5f) && // Lower floor bound.
coll->Middle.Floor >= -STEPUP_HEIGHT && // Upper floor bound.
item->currentAnimState != LS_CRAWL_IDLE && // Crawl step up handled differently.
item->currentAnimState != LS_CRAWL_FORWARD)
{
return true;
}
return false;
}
bool TestLaraStepDown(ITEM_INFO* item, COLL_INFO* coll)
{
if (coll->Middle.Floor > CLICK(0.5f) && // Upper floor bound.
coll->Middle.Floor <= STEPUP_HEIGHT && // Lower floor bound.
item->currentAnimState != LS_CRAWL_IDLE && // Crawl step down handled differently.
item->currentAnimState != LS_CRAWL_FORWARD)
{
return true;
}
return false;
}
// TODO: This function and its clone below should become obsolete with more accurate and accessible collision detection in the future.
// For now, it supercedes old probes and is used alongside COLL_INFO. @Sezz 2021.10.24
bool TestLaraMove(ITEM_INFO* item, COLL_INFO* coll, short angle, int lowerBound, int upperBound, bool checkSlope, bool checkDeath)
{
auto y = item->pos.yPos;
auto probe = GetCollisionResult(item, angle, coll->Setup.Radius * sqrt(2) + 4, 0); // Offset required to account for gap between Lara and the wall. Results in slight overshoot, but avoids oscillation.
auto isSlope = checkSlope ? probe.Position.Slope : false;
auto isDeath = checkDeath ? probe.Block->Flags.Death : false;
if ((probe.Position.Floor - y) <= lowerBound && // Lower floor bound.
(probe.Position.Floor - y) >= upperBound && // Upper floor bound.
(probe.Position.Ceiling - y) < -coll->Setup.Height && // Lowest ceiling bound.
abs(probe.Position.Ceiling - probe.Position.Floor) > coll->Setup.Height && // Space is not a clamp.
!isSlope && !isDeath && // No slope or death sector (if applicable).
probe.Position.Floor != NO_HEIGHT)
{
return true;
}
return false;
}
// HACK: coll->Setup.Radius and coll->Setup.Height are only set
// in COLLISION functions, then reset by LaraAboveWater() to defaults.
// This means they will store the wrong values for tests called in crawl CONTROL functions.
// When states become objects, collision setup should occur at the beginning of each state, eliminating the need
// for this clone function. @Sezz 2021.12.05
bool TestLaraMoveCrawl(ITEM_INFO* item, COLL_INFO* coll, short angle, int lowerBound, int upperBound, bool checkSlope, bool checkDeath)
{
auto y = item->pos.yPos;
auto probe = GetCollisionResult(item, angle, LARA_RAD_CRAWL * sqrt(2) + 4, 0); // Offset required to account for gap between Lara and the wall. Results in slight overshoot, but avoids oscillation.
auto isSlope = checkSlope ? probe.Position.Slope : false;
auto isDeath = checkDeath ? probe.Block->Flags.Death : false;
if ((probe.Position.Floor - y) <= lowerBound && // Lower floor bound.
(probe.Position.Floor - y) >= upperBound && // Upper floor bound.
(probe.Position.Ceiling - y) < -LARA_HEIGHT_CRAWL && // Lowest ceiling bound.
abs(probe.Position.Ceiling - probe.Position.Floor) > LARA_HEIGHT_CRAWL && // Space is not a clamp.
!isSlope && !isDeath && // No slope or death sector (if applicable).
probe.Position.Floor != NO_HEIGHT)
{
return true;
}
return false;
}
bool TestLaraRunForward(ITEM_INFO* item, COLL_INFO* coll)
{
auto y = item->pos.yPos - coll->Setup.Height;
auto probe = GetCollisionResult(item, item->pos.yRot, coll->Setup.Radius * sqrt(2) + 4, 0);
// Hack to ensure Lara can run off diagonal ledges and stops on slanted ceilings. coll->Front.Floor often holds the wrong height because of quadrant-dependent wall pushing. @Sezz 2021.11.06
// BUG: This interferes with the one-step stand-to-crouch vault where the ceiling is lower than Lara's height.
if ((probe.Position.Ceiling - y) < 0)
return true;
return false;
// TODO: TestLaraMove() call not useful yet; it can block Lara from climbing. @Sezz 2021.10.28
//return TestLaraMove(item, coll, item->pos.yRot, STEPUP_HEIGHT, -STEPUP_HEIGHT, false); // Using BadHeightUp/Down defined in walk and run state collision functions.
}
bool TestLaraWalkForward(ITEM_INFO* item, COLL_INFO* coll)
{
if (coll->CollisionType != CT_FRONT &&
coll->CollisionType != CT_TOP_FRONT)
{
return true;
}
return false;
// TODO: Same issues as in TestLaraRunForward().
//return TestLaraMove(item, coll, item->pos.yRot, STEPUP_HEIGHT, -STEPUP_HEIGHT, true, true); // Using BadHeightUp/Down defined in walk and run state collision functions.
}
bool TestLaraWalkBack(ITEM_INFO* item, COLL_INFO* coll)
{
return TestLaraMove(item, coll, item->pos.yRot + ANGLE(180.0f), STEPUP_HEIGHT, -STEPUP_HEIGHT); // Using BadHeightUp/Down defined in walk back state collision function.
}
bool TestLaraHopBack(ITEM_INFO* item, COLL_INFO* coll)
{
return TestLaraMove(item, coll, item->pos.yRot + ANGLE(180.0f), NO_BAD_POS, -STEPUP_HEIGHT, false, false); // Using BadHeightUp/Down defined in hop back state collision function.
}
bool TestLaraStepLeft(ITEM_INFO* item, COLL_INFO* coll)
{
return TestLaraMove(item, coll, item->pos.yRot - ANGLE(90.0f), CLICK(0.5f), -CLICK(0.5f)); // Using BadHeightUp/Down defined in step left state collision function.
}
bool TestLaraStepRight(ITEM_INFO* item, COLL_INFO* coll)
{
return TestLaraMove(item, coll, item->pos.yRot + ANGLE(90.0f), CLICK(0.5f), -CLICK(0.5f)); // Using BadHeightUp/Down defined in step right state collision function.
}
bool TestLaraWalkBackSwamp(ITEM_INFO* item, COLL_INFO* coll)
{
return TestLaraMove(item, coll, item->pos.yRot + ANGLE(180.0f), NO_BAD_POS, -STEPUP_HEIGHT, false); // Using BadHeightUp defined in walk back state collision function.
}
bool TestLaraStepLeftSwamp(ITEM_INFO* item, COLL_INFO* coll)
{
return TestLaraMove(item, coll, item->pos.yRot - ANGLE(90.0f), NO_BAD_POS, -CLICK(0.5f), false); // Using BadHeightUp defined in step left state collision function.
}
bool TestLaraStepRightSwamp(ITEM_INFO* item, COLL_INFO* coll)
{
return TestLaraMove(item, coll, item->pos.yRot + ANGLE(90.0f), NO_BAD_POS, -CLICK(0.5f), false); // Using BadHeightUp defined in step right state collision function.
}
bool TestLaraCrawlForward(ITEM_INFO* item, COLL_INFO* coll)
{
return TestLaraMoveCrawl(item, coll, item->pos.yRot, CLICK(1) - 1, -(CLICK(1) - 1)); // Using BadHeightUp/Down defined in crawl state collision functions.
}
bool TestLaraCrawlBack(ITEM_INFO* item, COLL_INFO* coll)
{
return TestLaraMoveCrawl(item, coll, item->pos.yRot + ANGLE(180.0f), CLICK(1) - 1, -(CLICK(1) - 1)); // Using BadHeightUp/Down defined in crawl state collision functions.
}
bool TestLaraCrouchToCrawl(ITEM_INFO* item)
{
LaraInfo*& info = item->data;
if (info->gunStatus == LG_HANDS_FREE && // Hands are free.
!(TrInput & (IN_FLARE | IN_DRAW)) && // Avoid unsightly concurrent actions.
(info->gunType != WEAPON_FLARE || info->flareAge > 0)) // Not handling flare.
{
return true;
}
return false;
}
bool TestLaraCrouchRoll(ITEM_INFO* item, COLL_INFO* coll)
{
LaraInfo*& info = item->data;
auto y = item->pos.yPos;
auto probe = GetCollisionResult(item, item->pos.yRot, WALL_SIZE / 2, 0);
if ((probe.Position.Floor - y) <= (CLICK(1) - 1) && // Lower floor bound.
(probe.Position.Floor - y) >= -(CLICK(1) - 1) && // Upper floor bound.
(probe.Position.Ceiling - y) < -LARA_HEIGHT_CRAWL && // Lowest ceiling bound.
!probe.Position.Slope && // Not a slope.
info->waterSurfaceDist >= -CLICK(1) && // Water depth is optically feasible for action.
!(TrInput & (IN_FLARE | IN_DRAW)) && // Avoid unsightly concurrent actions.
(info->gunType != WEAPON_FLARE || info->flareAge > 0)) // Not handling flare.
{
return true;
}
return false;
}
bool TestLaraCrawlUpStep(ITEM_INFO* item, COLL_INFO* coll)
{
auto y = item->pos.yPos;
auto probeA = GetCollisionResult(item, item->pos.yRot, CLICK(1), 0); // Crossing.
auto probeB = GetCollisionResult(item, item->pos.yRot, CLICK(2), 0); // Approximate destination.
if ((probeA.Position.Floor - y) <= -CLICK(1) && // Lower floor bound. Synced with crawl states' BadHeightUp.
(probeA.Position.Floor - y) >= -STEPUP_HEIGHT && // Upper floor bound.
abs(probeA.Position.Floor - probeB.Position.Floor) <= (CLICK(1) - 1) && // Destination height is within idle threshold.
((coll->Front.Ceiling - LARA_HEIGHT_CRAWL) - (probeA.Position.Floor - y)) <= -(CLICK(0.5f) + CLICK(1) / 8) && // Gap is optically feasible for action.
abs(probeA.Position.Ceiling - probeA.Position.Floor) > LARA_HEIGHT_CRAWL && // Crossing is not a clamp.
abs(probeB.Position.Ceiling - probeB.Position.Floor) > LARA_HEIGHT_CRAWL && // Destination is not a clamp.
!probeA.Position.Slope && !probeB.Position.Slope && // No slopes.
probeA.Position.Floor != NO_HEIGHT && probeB.Position.Floor != NO_HEIGHT)
{
return true;
}
return false;
}
bool TestLaraCrawlDownStep(ITEM_INFO* item, COLL_INFO* coll)
{
auto y = item->pos.yPos;
auto probeA = GetCollisionResult(item, item->pos.yRot, CLICK(1), 0); // Crossing.
auto probeB = GetCollisionResult(item, item->pos.yRot, CLICK(2), 0); // Approximate destination.
if ((probeA.Position.Floor - y) <= STEPUP_HEIGHT && // Lower floor bound. Synced with crawl exit jump's highest floor bound.
(probeA.Position.Floor - y) >= CLICK(1) && // Upper floor bound. Synced with crawl states' BadHeightDown.
abs(probeA.Position.Floor - probeB.Position.Floor) <= (CLICK(1) - 1) && // Destination height is within idle threshold.
(probeA.Position.Ceiling - y) <= -CLICK(0.75f) && // Gap is optically feasible for action.
abs(probeA.Position.Ceiling - probeA.Position.Floor) > LARA_HEIGHT_CRAWL && // Crossing is not a clamp.
abs(probeB.Position.Ceiling - probeB.Position.Floor) > LARA_HEIGHT_CRAWL && // Destination is not a clamp.
!probeA.Position.Slope && !probeB.Position.Slope && // No slopes.
probeA.Position.Floor != NO_HEIGHT && probeB.Position.Floor != NO_HEIGHT)
{
return true;
}
return false;
}
bool TestLaraCrawlExitDownStep(ITEM_INFO* item, COLL_INFO* coll)
{
auto y = item->pos.yPos;
auto probeA = GetCollisionResult(item, item->pos.yRot, CLICK(1), 0); // Crossing.
auto probeB = GetCollisionResult(item, item->pos.yRot, CLICK(1.5f), 0); // Approximate destination.
if ((((probeA.Position.Floor - y) <= STEPUP_HEIGHT && // Lower floor bound. Synced with crawl exit jump's highest floor bound.
(probeA.Position.Floor - y) >= CLICK(1)) || // Upper floor bound. Synced with crawl states' BadHeightDown. OR
(probeA.Position.Slope && probeB.Position.Slope)) && // Slopes ahead.
(probeA.Position.Ceiling - y) <= -CLICK(1.25f) && // Gap is optically feasible for action.
abs(probeA.Position.Ceiling - probeA.Position.Floor) > LARA_HEIGHT && // Crossing is not a clamp.
abs(probeB.Position.Ceiling - probeB.Position.Floor) > LARA_HEIGHT && // Destination is not a clamp.
probeA.Position.Floor != NO_HEIGHT && probeB.Position.Floor != NO_HEIGHT)
{
return true;
}
return false;
}
bool TestLaraCrawlExitJump(ITEM_INFO* item, COLL_INFO* coll)
{
auto y = item->pos.yPos;
auto probeA = GetCollisionResult(item, item->pos.yRot, CLICK(1), 0); // Crossing.
auto probeB = GetCollisionResult(item, item->pos.yRot, CLICK(1.5f), 0); // Approximate destination.
if ((probeA.Position.Floor - y) > STEPUP_HEIGHT && // Highest floor bound. Synced with crawl down step and crawl exit down step's lower floor bounds.
(probeA.Position.Ceiling - y) <= -CLICK(1.25f) && // Gap is optically feasible for action.
abs(probeA.Position.Ceiling - probeA.Position.Floor) > LARA_HEIGHT && // Crossing is not a clamp.
abs(probeB.Position.Ceiling - probeB.Position.Floor) > LARA_HEIGHT && // Destination is not a clamp.
probeA.Position.Floor != NO_HEIGHT && probeB.Position.Floor != NO_HEIGHT)
{
return true;
}
return false;
}
bool TestLaraCrawlVault(ITEM_INFO* item, COLL_INFO* coll)
{
if (TestLaraCrawlExitJump(item, coll) ||
TestLaraCrawlExitDownStep(item, coll) ||
TestLaraCrawlUpStep(item, coll) ||
TestLaraCrawlDownStep(item, coll))
{
return true;
}
return false;
}
bool TestLaraCrawlToHang(ITEM_INFO* item, COLL_INFO* coll)
{
auto y = item->pos.yPos;
auto probe = GetCollisionResult(item, item->pos.yRot + ANGLE(180.0f), CLICK(1), 0);
auto objectCollided = TestLaraObjectCollision(item, item->pos.yRot + ANGLE(180.0f), CLICK(1), 0);
if (!objectCollided && // No obstruction.
(probe.Position.Floor - y) >= LARA_HEIGHT_STRETCH && // Highest floor bound.
(probe.Position.Ceiling - y) <= -CLICK(0.75f) && // Gap is optically feasible for action.
probe.Position.Floor != NO_HEIGHT)
{
return true;
}
return false;
}
bool TestLaraPoleCollision(ITEM_INFO* item, COLL_INFO* coll, bool up, float offset)
{
static constexpr auto poleProbeCollRadius = 16.0f;
bool atLeastOnePoleCollided = false;
if (GetCollidedObjects(item, WALL_SIZE, true, CollidedItems, nullptr, 0) && CollidedItems[0])
{
auto laraBox = TO_DX_BBOX(item->pos, GetBoundsAccurate(item));
// HACK: because Core implemented upward pole movement as SetPosition command, we can't precisely
// check her position. So we add a fixed height offset.
auto sphere = BoundingSphere(laraBox.Center + Vector3(0, (laraBox.Extents.y + poleProbeCollRadius + offset) * (up ? -1 : 1), 0), poleProbeCollRadius);
//g_Renderer.addDebugSphere(sphere.Center, 16.0f, Vector4(1, 0, 0, 1), RENDERER_DEBUG_PAGE::LOGIC_STATS);
int i = 0;
while (CollidedItems[i] != NULL)
{
auto& obj = CollidedItems[i];
i++;
if (obj->objectNumber != ID_POLEROPE)
continue;
auto poleBox = TO_DX_BBOX(obj->pos, GetBoundsAccurate(obj));
poleBox.Extents = poleBox.Extents + Vector3(coll->Setup.Radius, 0, coll->Setup.Radius);
//g_Renderer.addDebugBox(poleBox, Vector4(0, 0, 1, 1), RENDERER_DEBUG_PAGE::LOGIC_STATS);
if (poleBox.Intersects(sphere))
{
atLeastOnePoleCollided = true;
break;
}
}
}
return atLeastOnePoleCollided;
}
bool TestLaraPoleUp(ITEM_INFO* item, COLL_INFO* coll)
{
if (!TestLaraPoleCollision(item, coll, true, CLICK(1)))
return false;
// TODO: Accuracy.
return (coll->Middle.Ceiling < -CLICK(1));
}
bool TestLaraPoleDown(ITEM_INFO* item, COLL_INFO* coll)
{
if (!TestLaraPoleCollision(item, coll, false))
return false;
return (coll->Middle.Floor > 0);
}
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