public List <Grid> getGrids(GeomBase geom, List <Grid> grids = null)
{
if (null == grids)
{
this.helpGrids.Clear();
grids = this.helpGrids;
}
if (geom.radius <= 0)
{
return(grids);
}
if (geom.applyEntity)
{
geom.position.copy(geom.entity.position);
geom.angle = geom.entity.angle;
}
geom.updatePoints();
Vector2D positon = geom.position;
int radius = geom.radius;
int startX = (int)((positon.x - radius) / this.size);
int endX = (int)((positon.x + radius) / this.size);
int startY = (int)Math.Max(0, (positon.y - radius) / this.size);
int endY = (int)Math.Min((positon.y + radius) / this.size, this.rowNum - 1);
for (int i = startX; i <= endX; i++)
{
for (int j = startY; j <= endY; j++)
{
Grid grid = this.getGrid(i, j);
grids.Add(grid);
}
}
return(grids);
}
public static CollisionInfo checkCollision(GeomBase geom1, GeomBase geom2, MapData mapData)
{
//把大的放在前面！
if (geom1.type > geom2.type)
{
GeomBase temp = geom1;
geom1 = geom2;
geom2 = temp;
}
if (geom1.applyEntity)
{
geom1.position.copy(geom1.entity.position);
geom1.angle = geom1.entity.angle;
}
if (geom2.applyEntity)
{
geom2.position.copy(geom2.entity.position);
geom2.angle = geom2.entity.angle;
}
CollisionInfo result = realPosition(geom1.position, geom2.position, mapData);
geom1.position.copy(result.pos1);
geom2.position.copy(result.pos2);
geom1.updatePoints();
geom2.updatePoints();
int type = geom1.type | geom2.type;
result = handlerMap[1](geom1, geom2);
//非圆形 就再判断一次！
if (result.isHit && type != 1)
{
result = handlerMap[type](geom1, geom2);
}
return(result);
}
