//判断碰撞类型
CollisionType Hero::checkCollision(Point heroPosition)
{
//cocos2d-x坐标转换为Tilemap坐标
targetTileCoord = sGlobal->gameMap->tileCoordForPosition(heroPosition);
//如果勇士坐标超过地图边界，返回kWall类型，阻止其移动
if (heroPosition.x < 0 || targetTileCoord.x > sGlobal->gameMap->getMapSize().width - 1 || targetTileCoord.y < 0 || targetTileCoord.y > sGlobal->gameMap->getMapSize().height - 1)
return kWall;
//获取墙壁层对应坐标的图块ID
int targetTileGID = sGlobal->gameMap->getWallLayer()->tileGIDAt(targetTileCoord);
//如果图块ID不为0，表示有墙
if (targetTileGID) {
return kWall;
}
//获取怪物层对应坐标的图块ID
targetTileGID = sGlobal->gameMap->getEnemyLayer()->tileGIDAt(targetTileCoord);
//如果图块ID不为0，表示有怪物
if (targetTileGID) {
//开始战斗
fight();
return kEnemy;
}
//获取物品层对应坐标的图块ID
targetTileGID = sGlobal->gameMap->getItemLayer()->tileGIDAt(targetTileCoord);
//如果图块ID不为0，表示有物品
if (targetTileGID) {
//拾取物品
pickUpItem();
return kItem;
}
//获取门层对应坐标的图块ID
targetTileGID = sGlobal->gameMap->getDoorLayer()->tileGIDAt(targetTileCoord);
//如果图块ID不为0，表示有门
if (targetTileGID) {
//打开门
openDoor(targetTileGID);
return kDoor;
}
//从npc字典中查询
int index = targetTileCoord.x + targetTileCoord.y * sGlobal->gameMap->getMapSize().width;
NPC *npc = sGlobal->gameMap->npcDict.at(index);
if (npc != NULL)
{
actWithNPC();
return kNPC;
}
//从Teleport字典中查询
Teleport *teleport = sGlobal->gameMap->teleportDict.at(index);
if (teleport != NULL)
{
doTeleport(teleport);
return kTeleport;
}
//可以通行
return kNone;
}
void doEntities()
{
int i;
EntityList *el;
/* Loop through the entities and perform their action */
for (el=entities->next;el!=NULL;el=el->next)
{
self = el->entity;
if (self->inUse == TRUE)
{
self->flags &= ~(HELPLESS|INVULNERABLE|FLASH|ATTRACTED);
for (i=0;i<MAX_CUSTOM_ACTIONS;i++)
{
if (self->customAction[i].thinkTime > 0)
{
doCustomAction(&self->customAction[i]);
}
}
if (!(self->flags & TELEPORTING))
{
if (!(self->flags & (FLY|GRABBED)))
{
switch (self->environment)
{
case WATER:
case SLIME:
self->dirY += GRAVITY_SPEED * 0.25 * self->weight;
if (self->flags & FLOATS)
{
if (self->dirX != 0)
{
self->endY++;
self->dirY = cos(DEG_TO_RAD(self->endY)) / 20;
}
}
if (self->dirY >= MAX_WATER_SPEED)
{
self->dirY = MAX_WATER_SPEED;
}
break;
default:
self->dirY += GRAVITY_SPEED * self->weight;
if (self->dirY >= MAX_AIR_SPEED)
{
self->dirY = MAX_AIR_SPEED;
}
else if (self->dirY > 0 && self->dirY < 1)
{
self->dirY = 1;
}
break;
}
}
if (self->flags & GRABBED)
{
self->dirY = 0;
}
if (self->standingOn != NULL)
{
if (self->standingOn->dirX != 0)
{
self->dirX = self->standingOn->dirX;
}
if (self->standingOn->dirY > 0)
{
self->dirY = self->standingOn->dirY + 1;
}
}
if (!(self->flags & HELPLESS))
{
if (self->action == NULL)
{
showErrorAndExit("%s has no action function", self->name);
}
self->action();
}
else
{
checkToMap(self);
}
if (self->standingOn != NULL)
{
self->flags |= WAS_STANDING_ON;
}
else
{
self->flags &= ~WAS_STANDING_ON;
}
self->standingOn = NULL;
if (self->flags & SPAWNED_IN)
{
self->spawnTime--;
}
if (self->inUse == TRUE)
{
addToGrid(self);
}
}
else
{
doTeleport();
}
addToDrawLayer(self, self->layer);
}
}
}
