I will pay 1 person $20 if they can convert this 2 page Java 3D Code to MonoGame in C#
Here is what this engine should look like -
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
/**
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Comanche-like simple voxel space engine Test
-
@author leonardo
*/
public class View extends JPanel {private double px = 800, py = 500, pd = 1.7; // view position = (px, py) / view direction = pd (angle in rad)
private BufferedImage offscreen, heightMap, textureMap;
private final Color skyColor = new Color(150, 170, 170);public View() {
offscreen = new BufferedImage(400, 300, BufferedImage.TYPE_INT_RGB);
try {
heightMap = ImageIO.read(getClass().getResourceAsStream(“mountains.jpg”));
textureMap = ImageIO.read(getClass().getResourceAsStream(“mountains3.jpg”));
} catch (IOException ex) {
Logger.getLogger(View.class.getName()).log(Level.SEVERE, null, ex);
}
}@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
draw(offscreen.createGraphics());
g.drawImage(offscreen, 0, 0, 800, 600, 0, 0, 400, 300, null);
// animation / move view position
px += 2 * Math.cos(pd);
py += 2 * Math.sin(pd);
pd += 0.01;
repaint();
}private void draw(Graphics2D g) {
g.setBackground(skyColor);
g.clearRect(0, 0, getWidth(), getHeight());
// cast rays
int sx = 0;
for (double angle = -0.5; angle < 1; angle += 0.0035) {
int maxScreenHeight = getHeight();
double s = Math.cos(pd + angle);
double c = Math.sin(pd + angle);
for (int depth = 10; depth < 600; depth += 1) {
int hmx = (int) (px + depth * s);
int hmy = (int) (py + depth * c);
if (hmx < 0 || hmy < 0 || hmx > heightMap.getWidth() - 1 || hmy > heightMap.getHeight() - 1) {
continue;
}
int height = heightMap.getRGB(hmx, hmy) & 255;
int color = addFog(textureMap.getRGB(hmx, hmy), depth);// draw 3D vertical terrain line / circular projection double sy = 120 * (300 - height) / depth; if (sy > maxScreenHeight) { continue; } for (int y = (int) sy; y <= maxScreenHeight; y++) { if (y < 0 || sx > offscreen.getWidth() - 1 || y > offscreen.getHeight() - 1) { continue; } offscreen.setRGB(sx, y, color); } maxScreenHeight = (int) sy; } sx++; }}
private int addFog(int color, int depth) {
int r = (color >> 16) & 255;
int g = (color >> 8) & 255;
int b = color & 255;
double p = depth > 100 ? (depth - 100) / 500.0 : 0;
r = (int) (r + (skyColor.getRed() - r) * p);
g = (int) (g + (skyColor.getGreen() - g) * p);
b = (int) (b + (skyColor.getBlue() - b) * p);
return (r << 16) + (g << 8) + b;
}public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
JFrame frame = new JFrame();
frame.setTitle(“Java Simple Voxel Space Engine Test”);
frame.getContentPane().add(new View());
frame.setSize(800, 600);
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setResizable(false);
frame.setVisible(true);
}
});
}
}
