Java Slick2d - How to translate mouse coordinates to world coordinates
- by Corey
I am translating in my main class render. How do I get the mouse position where my mouse actually is after I scroll the screen
public void render(GameContainer gc, Graphics g) throws SlickException
{
float centerX = 800/2;
float centerY = 600/2;
g.translate(centerX, centerY);
g.translate(-player.playerX, -player.playerY);
gen.render(g);
player.render(g);
}
playerX = 800 /2 - sprite.getWidth();
playerY = 600 /2 - sprite.getHeight();
Image to help with explanation
I tried implementing a camera but it seems no matter what I can't get the mouse position.
I was told to do this worldX = mouseX + camX; but it didn't work the mouse was still off.
Here is my Camera class if that helps:
public class Camera {
public float camX;
public float camY;
Player player;
public void init() {
player = new Player();
}
public void update(GameContainer gc, int delta) {
Input input = gc.getInput();
if(input.isKeyDown(Input.KEY_W)) {
camY -= player.speed * delta;
}
if(input.isKeyDown(Input.KEY_S)) {
camY += player.speed * delta;
}
if(input.isKeyDown(Input.KEY_A)) {
camX -= player.speed * delta;
}
if(input.isKeyDown(Input.KEY_D)) {
camX += player.speed * delta;
}
}
Code used to convert mouse
worldX = (int) (mouseX + cam.camX);
worldY = (int) (mouseY + cam.camY);
