public void floor(Camera cam) {
for (int i = 0; i < width * height; i++) {
zBufferWall[i] = 0;
}
// System.out.println("X:"+(int)cam.getPosition().getX()/16+"
// Y:"+(int)cam.getPosition().getY()/16+" Z:"+(int)cam.getPosition().getZ()/16);
cosine = Math.cos(cam.getRotation().getX());
sine = Math.sin(cam.getRotation().getX());
for (int y = 0; y < height; y++) {
double ceiling = (y - height / 2.0) / height;
double z = (floorPosition - cam.getPosition().getY()) / ceiling;
if (ceiling < 0) {
z = (ceilingPosition + cam.getPosition().getY()) / -ceiling;
}
for (int x = 0; x < width; x++) {
double depth = (x - width / 2.0) / height;
depth *= z;
double xx = depth * cosine + z * sine - 1;
double yy = z * cosine - depth * sine;
int xPix = (int) (xx + (cam.getPosition().getX()));
int yPix = (int) (yy + (cam.getPosition().getZ()));
zBuffer[x + y * width] = z;
// pixels[x + y * width] = ((xPix & 15) * 16) | ((yPix & 15) * 16) << 8;
pixels[x + y * width] = Texture.getPixelsAt(Texture.ruins_floor, xPix, yPix);
// pixels[x + y * width] = (Texture.floor.pixels[(xPix & 7) + (yPix & 7) *
// 8]* -1 << 1) & 128;
// System.out.println(Texture.floor.pixels[(xPix & 31) + (yPix & 31) * 32]);
if (z > cam.renderDistance) {
pixels[x + y * width] = 0;
}
}
}
}
public void drawWallFacesCamera(int x, int y, int z, Camera cam) {
RigidBody body = new RigidBody(new Point[] {new Point2D(-0.5f, 0), new Point2D(0.5f, 0)});
RigidUtils.RotateZOnlyPoints(body, -cam.getRotation().getX());
this.drawWall(
body.points[0].getX() + x,
body.points[1].getX() + x,
body.points[0].getY() + z,
body.points[1].getY() + z,
0.0 + y,
cam);
}
public void drawWallFacesCamera(int x, int y, int z, Camera cam, Render texture) {
RigidBody body = new RigidBody(new Point[] {new Point2D(-0.5f, 0), new Point2D(0.5f, 0)});
RigidUtils.RotateZOnlyPoints(body, -cam.getRotation().getX());
body.Translate(0.5f, 1.5f, 0.0f);
this.drawWall(
body.points[0].getX() + body.x + x,
body.points[1].getX() + body.x + x,
body.points[0].getY() + body.y + z,
body.points[1].getY() + body.y + z,
0.0 + y,
cam,
texture);
}
