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[Fix] Change calculation of absolute value to support floating point variables.

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This commit is contained in:
Rtch90 2012-02-20 21:34:50 +00:00
parent 2e50097502
commit 61f1f2b2a4
1 changed files with 68 additions and 68 deletions
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134
src/libUnuk/Engine/NPC.cpp
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@ -3,8 +3,8 @@
#include "../System/Vec2.h" #include "../System/Vec2.h"
NPC::NPC(LevelGen* mapArg) : Character(mapArg) { NPC::NPC(LevelGen* mapArg) : Character(mapArg) {
_walkInPath = false; _walkInPath = false;
_moving = false; _moving = false;
} }
NPC::~NPC(void) { NPC::~NPC(void) {
@ -12,8 +12,8 @@ NPC::~NPC(void) {
} }
void NPC::ForceMove(void) { void NPC::ForceMove(void) {
tileX = x / AStarTile::FAKE_SIZE; tileX = x / AStarTile::FAKE_SIZE;
tileY = y / AStarTile::FAKE_SIZE; tileY = y / AStarTile::FAKE_SIZE;
} }
void NPC::Update(void) { void NPC::Update(void) {
@ -31,83 +31,83 @@ void NPC::Update(void) {
} }
void NPC::Move(void) { void NPC::Move(void) {
Vec2 realPos(x, y); Vec2 realPos(x, y);
Vec2 tilePos(tileX, tileY); Vec2 tilePos(tileX, tileY);
if(realPos != tilePos) { if(realPos != tilePos) {
float targetX = (float)(tileX * AStarTile::FAKE_SIZE); float targetX = (float)(tileX * AStarTile::FAKE_SIZE);
float targetY = (float)(tileY * AStarTile::FAKE_SIZE); float targetY = (float)(tileY * AStarTile::FAKE_SIZE);
float dx = targetX - realPos.x; float dx = targetX - realPos.x;
float dy = targetY - realPos.y; float dy = targetY - realPos.y;
float distance = sqrtf(dx*dx + dy*dy); float distance = sqrtf(dx*dx + dy*dy);
if(fabs(distance) > CHARACTER_SPEED) { if(fabs(distance) > CHARACTER_SPEED) {
dx /= distance; dx /= distance;
dy /= distance; dy /= distance;
dx *= CHARACTER_SPEED; dx *= CHARACTER_SPEED;
dy *= CHARACTER_SPEED; dy *= CHARACTER_SPEED;
xVel = dx; xVel = dx;
yVel = dy; yVel = dy;
map->MoveIfPossible(this, xVel, yVel, false); map->MoveIfPossible(this, xVel, yVel, false);
Character::HealthBarScroll(); Character::HealthBarScroll();
_moving = true; _moving = true;
} else { } else {
xVel = 0.0f; xVel = 0.0f;
yVel = 0.0f; yVel = 0.0f;
_moving = false; _moving = false;
} }
} else { } else {
xVel = 0.0f; xVel = 0.0f;
yVel = 0.0f; yVel = 0.0f;
_moving = false; _moving = false;
} }
if(_walkInPath && !_moving) { if(_walkInPath && !_moving) {
Vec2 targetPos((float)_target->GetX(), (float)_target->GetY()); Vec2 targetPos((float)_target->GetX(), (float)_target->GetY());
if(abs(Vec2::Distance(targetPos, realPos)) <= CHARACTER_SPEED) { if(fabs(Vec2::Distance(targetPos, realPos)) <= CHARACTER_SPEED) {
_target = _astar.GetSolutionNext(); _target = _astar.GetSolutionNext();
if(_target == NULL || _target == _lastTarget) { if(_target == NULL || _target == _lastTarget) {
_walkInPath = false; _walkInPath = false;
} else { } else {
tileX = _target->GetX() / AStarTile::FAKE_SIZE; tileX = _target->GetX() / AStarTile::FAKE_SIZE;
tileY = _target->GetY() / AStarTile::FAKE_SIZE; tileY = _target->GetY() / AStarTile::FAKE_SIZE;
} }
} }
} }
} }
void NPC::OnPlayerMove(Player* player) { void NPC::OnPlayerMove(Player* player) {
AStarTile& start = map->GetAStarTile(x / AStarTile::FAKE_SIZE, y / AStarTile::FAKE_SIZE); AStarTile& start = map->GetAStarTile(x / AStarTile::FAKE_SIZE, y / AStarTile::FAKE_SIZE);
AStarTile& goal = map->GetAStarTile(player->GetX() / AStarTile::FAKE_SIZE, player->GetY() / AStarTile::FAKE_SIZE); AStarTile& goal = map->GetAStarTile(player->GetX() / AStarTile::FAKE_SIZE, player->GetY() / AStarTile::FAKE_SIZE);
_astar.SetStartAndGoalStates(start, goal); _astar.SetStartAndGoalStates(start, goal);
_walkInPath = false; _walkInPath = false;
// Dirty loop to calculate the path // Dirty loop to calculate the path
while(true) { while(true) {
unsigned int state = _astar.SearchStep(); unsigned int state = _astar.SearchStep();
if(state == AStarSearch<AStarTile>::SEARCH_STATE_SUCCEEDED) { if(state == AStarSearch<AStarTile>::SEARCH_STATE_SUCCEEDED) {
_walkInPath = true; _walkInPath = true;
break; break;
} else if(state != AStarSearch<AStarTile>::SEARCH_STATE_SEARCHING) { } else if(state != AStarSearch<AStarTile>::SEARCH_STATE_SEARCHING) {
break; break;
} }
} }
_lastTarget = _astar.GetSolutionEnd(); _lastTarget = _astar.GetSolutionEnd();
_target = _astar.GetSolutionStart(); _target = _astar.GetSolutionStart();
_target = _astar.GetSolutionNext(); _target = _astar.GetSolutionNext();
if(!_target) { if(!_target) {
_walkInPath = false; _walkInPath = false;
} else { } else {
tileX = _target->GetX() / AStarTile::FAKE_SIZE; tileX = _target->GetX() / AStarTile::FAKE_SIZE;
tileY = _target->GetY() / AStarTile::FAKE_SIZE; tileY = _target->GetY() / AStarTile::FAKE_SIZE;
} }
} }