private Vector set_velocity()
{
Vector velocity = new Vector();
switch (CHARAKTER.direction)
{
case 0:
velocity = new Vector(-CHARAKTER.speed.X, 0);
break;
case 1: velocity = new Vector(0, CHARAKTER.speed.Y);
break;
case 2: velocity = new Vector(0, -CHARAKTER.speed.Y);
break;
case 3: velocity = new Vector(CHARAKTER.speed.X, 0);
break;
case 4: velocity = new Vector(-CHARAKTER.speed.X, CHARAKTER.speed.Y);
break;
case 5:
velocity = new Vector(CHARAKTER.speed.X, CHARAKTER.speed.Y);
break;
case 6:
velocity = new Vector(-CHARAKTER.speed.X, -CHARAKTER.speed.Y);
break;
case 7:
velocity = new Vector(CHARAKTER.speed.X, -CHARAKTER.speed.Y);
break;
}
return velocity;
}
private void charakter_collision(ref Vector playerTranslation)
{
PolygonCollisionResult result;
Objcount = 0;
int DmodPosY = (int)CHARAKTER.sp.Y+1;
int DmodPosX = (int)CHARAKTER.sp.X - 1;
int maxX = 3; int maxY = 3;
if (DmodPosX >= RESOURCES.detailmapsize - 1) maxX = 0;
if (DmodPosY >= RESOURCES.detailmapsize - 1) maxY = 0;
int DmaxPosX = DmodPosX + maxX;
int DmaxPosY = DmodPosY + maxY;
if (DmodPosY < 0) DmodPosY = 0;
if (DmodPosX < 0) DmodPosX = 0;
int collisionsCount = 0;
for (int y = DmodPosY; y < DmaxPosY; y++)
{
for (int x = DmodPosX; x < DmaxPosX; x++)
{
if (RESOURCES.detailmap[y, x].detailmap != -1 && RESOURCES.detailmap[y, x].detailmap != -2)
{
RESOURCES.detailmap[y, x].destinationRect.X = PositionX + 128 * x;
RESOURCES.detailmap[y, x].destinationRect.Y = (PositionY + 97 * y) - RESOURCES.detailmap[y, x].destinationRect.Height;
if (CHARAKTER.Destbox.IntersectsWith(RESOURCES.detailmap[y, x].destinationRect) == true)
{
Objcount++;
RESOURCES.detailmap[y, x].THITBOX(RESOURCES.detailmap[y, x].destinationRect.X + playerTranslation.X, RESOURCES.detailmap[y, x].destinationRect.Y + playerTranslation.Y);
if (RESOURCES.detailmap[y, x].HitBox.Points[0].Y != RESOURCES.detailmap[y, x].HitBox.Points[1].Y) //KEINE NORMALE BOUNDING BOX
{
result = ENGINE.MATHENGINE.PolygonCollision(CHARAKTER.HitBox, RESOURCES.detailmap[y, x].DESTHitBox, playerTranslation);
if (ENGINE.MATHENGINE.behind(new PointF(CHARAKTER.HitBox.Points[0].X, CHARAKTER.HitBox.Points[0].Y), new PointF(RESOURCES.detailmap[y, x].DESTHitBox.Points[0].X, RESOURCES.detailmap[y, x].DESTHitBox.Points[0].Y), new PointF(RESOURCES.detailmap[y, x].DESTHitBox.Points[1].X, RESOURCES.detailmap[y, x].DESTHitBox.Points[1].Y)) == true)
{
CHARAKTER.Zebene = RESOURCES.detailmap[y, x].zebene - 0.001f;
RESOURCES.detailmap[y, x].color = Color.FromArgb(200, 255, 255, 255);
}
else
{
CHARAKTER.Zebene = (CHARAKTER.HitBox.Points[0].Y + 100) / 1000f;
RESOURCES.detailmap[y, x].color = Color.White;
}
if (result.WillIntersect)
{
collisionsCount++;
if (collisionsCount <= 1)
{
playerTranslation = -result.MinimumTranslationVector + playerTranslation;
CHARAKTER.caminar = false;
}
else
{
playerTranslation = new Vector(0, 0);
CHARAKTER.caminar = false;
}
}
}
else //BEI NORMALER BOUNDING BOX !!!
{
///////////////////////////////////////////////
if (CHARAKTER.HitBox.Points[0].Y < RESOURCES.detailmap[y, x].DESTHitBox.Points[0].Y)
{
//dahinter
//RESOURCES.detailmap[y, x].zebene = CHARAKTER.Zebene + (RESOURCES.detailmap[y, x].DESTHitBox.Points[0].Y+100) / 100f;
RESOURCES.detailmap[y, x].color = Color.FromArgb(200, 255, 255, 255);
}
else
{
//davor
//RESOURCES.detailmap[y, x].zebene = CHARAKTER.Zebene - Objcount / 20f;
RESOURCES.detailmap[y, x].color = Color.White;
}
////////////////////////////////////////////////
if (CHARAKTER.HitBox.intersect(RESOURCES.detailmap[y, x].DESTHitBox.Points) == true)
{
playerTranslation = new Vector(0, 0);
CHARAKTER.caminar = false;
}
}
if (DEBUG)
{
line.draw_line(new PointF(RESOURCES.detailmap[y, x].DESTHitBox.Points[0].X, RESOURCES.detailmap[y, x].DESTHitBox.Points[0].Y), new PointF(RESOURCES.detailmap[y, x].DESTHitBox.Points[1].X, RESOURCES.detailmap[y, x].DESTHitBox.Points[1].Y));
line.draw_line(new PointF(RESOURCES.detailmap[y, x].DESTHitBox.Points[1].X, RESOURCES.detailmap[y, x].DESTHitBox.Points[1].Y), new PointF(RESOURCES.detailmap[y, x].DESTHitBox.Points[2].X, RESOURCES.detailmap[y, x].DESTHitBox.Points[2].Y));
line.draw_line(new PointF(RESOURCES.detailmap[y, x].DESTHitBox.Points[2].X, RESOURCES.detailmap[y, x].DESTHitBox.Points[2].Y), new PointF(RESOURCES.detailmap[y, x].DESTHitBox.Points[3].X, RESOURCES.detailmap[y, x].DESTHitBox.Points[3].Y));
line.draw_line(new PointF(RESOURCES.detailmap[y, x].DESTHitBox.Points[3].X, RESOURCES.detailmap[y, x].DESTHitBox.Points[3].Y), new PointF(RESOURCES.detailmap[y, x].DESTHitBox.Points[0].X, RESOURCES.detailmap[y, x].DESTHitBox.Points[0].Y));
}
}
else
{
CHARAKTER.Zebene = (CHARAKTER.HitBox.Points[0].Y + 100) / 1000f;
RESOURCES.detailmap[y, x].color = Color.White;
}
}
}
}
}
public void Offset(Vector v)
{
Offset(v.X, v.Y);
}
public void Offset(float x, float y)
{
for (int i = 0; i < points.Count; i++)
{
Vector p = points[i];
points[i] = new Vector(p.X + x, p.Y + y);
}
}
// Calculate the projection of a polygon on an axis and returns it as a [min, max] interval
public void ProjectPolygon(Vector axis, Polygon polygon, ref float min, ref float max)
{
// To project a point on an axis use the dot product
float d = axis.DotProduct(polygon.Points[0]);
min = d;
max = d;
for (int i = 0; i < polygon.Points.Count; i++)
{
d = polygon.Points[i].DotProduct(axis);
if (d < min)
{
min = d;
}
else
{
if (d > max)
{
max = d;
}
}
}
}
// Check if polygon A is going to collide with polygon B for the given velocity
public PolygonCollisionResult PolygonCollision(Polygon polygonA, Polygon polygonB, Vector velocity)
{
PolygonCollisionResult result = new PolygonCollisionResult();
result.Intersect = false;
result.WillIntersect = true;
int edgeCountA = polygonA.Edges.Count;
int edgeCountB = polygonB.Edges.Count;
float minIntervalDistance = float.PositiveInfinity;
Vector translationAxis = new Vector();
Vector edge;
// Loop through all the edges of both polygons
for (int edgeIndex = 0; edgeIndex < edgeCountA + edgeCountB; edgeIndex++)
{
if (edgeIndex < edgeCountA)
{
edge = polygonA.Edges[edgeIndex];
}
else
{
edge = polygonB.Edges[edgeIndex - edgeCountA];
}
// ===== 1. Find if the polygons are currently intersecting =====
// Find the axis perpendicular to the current edge
Vector axis = new Vector(-edge.Y, edge.X);
axis.Normalize();
// Find the projection of the polygon on the current axis
float minA = 0; float minB = 0; float maxA = 0; float maxB = 0;
ProjectPolygon(axis, polygonA, ref minA, ref maxA);
ProjectPolygon(axis, polygonB, ref minB, ref maxB);
// Check if the polygon projections are currentlty intersecting
//if (IntervalDistance(minA, maxA, minB, maxB) > 0) result.Intersect = false;
// ===== 2. Now find if the polygons *will* intersect =====
// Project the velocity on the current axis
float velocityProjection = axis.DotProduct(velocity);
// Get the projection of polygon A during the movement
if (velocityProjection < 0)
{
minA += velocityProjection;
}
else
{
maxA += velocityProjection;
}
// Do the same test as above for the new projection
float intervalDistance = IntervalDistance(minA, maxA, minB, maxB);
if (intervalDistance > 0) result.WillIntersect = false;
// If the polygons are not intersecting and won't intersect, exit the loop
if (!result.Intersect && !result.WillIntersect) break;
// Check if the current interval distance is the minimum one. If so store
// the interval distance and the current distance.
// This will be used to calculate the minimum translation vector
intervalDistance = Math.Abs(intervalDistance);
if (intervalDistance < minIntervalDistance)
{
minIntervalDistance = intervalDistance;
translationAxis = axis;
Vector d = polygonA.Center - polygonB.Center;
if (d.DotProduct(translationAxis) < 0) translationAxis = -translationAxis;
}
}
// The minimum translation vector can be used to push the polygons appart.
// First moves the polygons by their velocity
// then move polygonA by MinimumTranslationVector.
if (result.WillIntersect) result.MinimumTranslationVector = translationAxis * minIntervalDistance;
return result;
}
public bool Equals(Vector v)
{
return X == v.X && Y == v.Y;
}
public float DotProduct(Vector vector)
{
return this.X * vector.X + this.Y * vector.Y;
}
public float DistanceTo(Vector vector)
{
return (float)Math.Sqrt(Math.Pow(vector.X - this.X, 2) + Math.Pow(vector.Y - this.Y, 2));
}
