Co-authored-by: r3cp3ct <45179536+r3cp3ct@users.noreply.github.com> Co-authored-by: sigonasr2 <sigonasr2@gmail.com>main
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package sig.objects.actor; |
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import sig.RabiClone; |
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import sig.engine.AnimatedSprite; |
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import sig.engine.Panel; |
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import sig.engine.Rectangle; |
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import sig.engine.Transform; |
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import sig.engine.objects.AnimatedObject; |
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import sig.engine.objects.CollisionEntity; |
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import sig.map.Tile; |
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public abstract class PhysicsObject extends AnimatedObject implements CollisionEntity,PhysicsObjectRequirements{ |
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final public static double GRAVITY = 1300; |
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final public static double NORMAL_FRICTION = 6400; |
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final public static double NORMAL_JUMP_VELOCITY = -300; |
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final public static double WALKING_SPEED_LIMIT = 164; |
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State state = State.IDLE; |
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double x_velocity,y_velocity; |
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double x_acceleration,y_acceleration; |
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double x_velocity_limit,y_velocity_limit; |
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boolean groundCollision; |
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byte maxJumpCount=2; |
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byte jumpCount=0; |
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double horizontal_air_friction,horizontal_air_drag; |
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double horizontal_friction,horizontal_drag; |
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protected PhysicsObject(AnimatedSprite spr, double animationSpd, Panel panel) { |
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super(spr, animationSpd, panel); |
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} |
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@Override |
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public void update(double updateMult) { |
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super.update(updateMult); |
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handleMovementPhysics(updateMult); |
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} |
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protected void handleMovementPhysics(double updateMult) { |
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int right = rightKeyHeld()?1:0; |
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int left = leftKeyHeld()?1:0; |
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if(state==State.SLIDE){ |
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right=0; |
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left=0; |
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} |
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x_velocity = |
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Math.abs(x_velocity+x_acceleration*updateMult)>x_velocity_limit |
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?Math.signum(x_velocity+x_acceleration*updateMult)*x_velocity_limit |
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:x_velocity+x_acceleration*updateMult; |
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y_velocity = |
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Math.abs(y_velocity+y_acceleration*updateMult)>y_velocity_limit |
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?Math.signum(y_velocity+y_acceleration*updateMult)*y_velocity_limit |
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:y_velocity+y_acceleration*updateMult; |
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double displacement_y = y_velocity*updateMult; |
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double displacement_x = x_velocity*updateMult; |
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boolean sideCollision = false; |
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boolean hitAbove=false; |
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if (y_velocity==0) { |
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if (!(checkCollision(getX()-getSprite().getWidth()/2+getCollisionBox().getX2(),getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()+2)|| |
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checkCollision(getX()-getSprite().getWidth()/2+getCollisionBox().getX(),getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()+2))) { |
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groundCollision=false; |
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} else { |
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groundCollision=true; |
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jumpCount=maxJumpCount; |
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} |
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} else { |
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double startingY=getY(); |
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groundCollision=false; |
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if (displacement_y>0) { |
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for (int y=(int)getY();y<startingY+displacement_y;y++) { |
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if (y==getY()) { |
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continue; |
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} |
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if (checkCollision(getX()-getSprite().getWidth()/2+getCollisionBox().getX2()-1,y+getCollisionBox().getY2()-getSprite().getHeight()/2)|| |
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checkCollision(getX()-getSprite().getWidth()/2+getCollisionBox().getX()+1,y+getCollisionBox().getY2()-getSprite().getHeight()/2)) { |
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setY(y-0.1); |
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//System.out.println("Running"+System.currentTimeMillis());
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y_acceleration = 0; |
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y_velocity = 0; |
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groundCollision = true; |
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if (state != State.SLIDE) { |
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state = State.IDLE; |
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} |
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break; |
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} |
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} |
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} else { |
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for (int y=(int)getY();y>startingY+displacement_y;y--) { |
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if (y==getY()) { |
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continue; |
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} |
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if (checkCollision(getX()-getSprite().getWidth()/2+getCollisionBox().getX2()-1,y+getCollisionBox().getY()-getSprite().getHeight()/2)|| |
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checkCollision(getX()-getSprite().getWidth()/2+getCollisionBox().getX()+1,y+getCollisionBox().getY()-getSprite().getHeight()/2)) { |
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setY(y+1); |
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hitAbove=true; |
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state=State.FALLING; |
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y_acceleration = 0; |
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y_velocity = 0; |
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displacement_y=0; |
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//groundCollision = true;
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break; |
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} |
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} |
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} |
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} |
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double startingX=getX(); |
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if (displacement_x>0.00001) { |
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for (int x=(int)getX();x<startingX+displacement_x;x++) { |
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if (x==getX()) { |
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continue; |
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} |
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if (checkCollision(x+getCollisionBox().getX2()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()))|| |
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checkCollision(x+getCollisionBox().getX2()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY()))) { |
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if (!(checkCollision(x+getCollisionBox().getX2()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()-2))|| |
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checkCollision(x+getCollisionBox().getX2()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY()-2)))) { |
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setY(getY()-1); |
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} else { |
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x_acceleration = 0; |
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x_velocity = 0.000001; |
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sideCollision=true; |
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setX(x-0.1); |
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break; |
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} |
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} else { |
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if (!hitAbove&&!checkCollision(x+getCollisionBox().getX()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()+1))&& |
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checkCollision(x+getCollisionBox().getX()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()+2))) { |
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//System.out.println("Performs check."+System.currentTimeMillis());
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setY(getY()+1); |
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//x_velocity = ;
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} |
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} |
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} |
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} else |
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if (displacement_x<-0.00001) { |
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for (int x=(int)getX();x>startingX+displacement_x;x--) { |
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if (x==getX()) { |
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continue; |
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} |
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if (checkCollision((x+getCollisionBox().getX()-getSprite().getWidth()/2),getY()-getSprite().getHeight()/2+getCollisionBounds().getY2())|| |
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checkCollision((x+getCollisionBox().getX()-getSprite().getWidth()/2),getY()-getSprite().getHeight()/2+getCollisionBounds().getY())) { |
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if (!(checkCollision(x+getCollisionBox().getX()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()-2))|| |
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checkCollision(x+getCollisionBox().getX()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY()-2)))) { |
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setY(getY()-1); |
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} else { |
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x_acceleration = 0; |
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x_velocity = -0.000001; |
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sideCollision=true; |
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setX(x+0.1); |
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break; |
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} |
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} else { |
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if (!hitAbove&&!checkCollision(x+getCollisionBox().getX2()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()+1))&& |
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checkCollision(x+getCollisionBox().getX2()-getSprite().getWidth()/2,(getY()-getSprite().getHeight()/2+getCollisionBounds().getY2()+2))) { |
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//System.out.println("Performs check."+System.currentTimeMillis());
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setY(getY()+1); |
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//x_velocity = ;
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} |
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} |
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} |
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} |
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if (!groundCollision){ |
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this.setY(this.getY()+displacement_y); |
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y_acceleration = GRAVITY; |
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if(y_velocity>0 && state!=State.SLIDE){ |
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state = State.FALLING; |
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} |
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if (!sideCollision) { |
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handleKeyboardMovement(updateMult, right-left, horizontal_air_friction, horizontal_air_drag); |
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this.setX(this.getX()+displacement_x); |
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} |
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} else { |
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if (!sideCollision) { |
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handleKeyboardMovement(updateMult, right-left, horizontal_friction, horizontal_drag); |
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this.setX(this.getX()+displacement_x); |
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} |
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} |
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} |
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protected boolean checkCollision(double x,double y) { |
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int index = (int)y*RabiClone.BASE_WIDTH*Tile.TILE_WIDTH+(int)x; |
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if (index>=0&&index<RabiClone.COLLISION.length) { |
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return RabiClone.COLLISION[index]; |
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} else { |
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return false; |
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} |
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} |
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private void handleKeyboardMovement(double updateMult, int movement, double friction, double drag) { |
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if (movement != 0 && Math.abs(x_velocity) < WALKING_SPEED_LIMIT) { |
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x_acceleration = drag * (movement); |
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} else { |
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if (x_velocity != 0) { |
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x_velocity = x_velocity > 0 |
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? x_velocity - friction * updateMult > 0 |
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? x_velocity - friction * updateMult |
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: 0 |
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: x_velocity + friction * updateMult < 0 |
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? x_velocity + friction * updateMult |
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: 0; |
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} |
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x_acceleration = 0; |
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} |
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} |
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@Override |
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public void draw(byte[] p) {} |
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@Override |
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public Transform getSpriteTransform() { |
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return null; |
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} |
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@Override |
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public Rectangle getCollisionBounds() { |
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return null; |
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} |
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@Override |
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public void setCollisionBounds(Rectangle bounds){} |
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} |
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@ -0,0 +1,6 @@ |
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package sig.objects.actor; |
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public interface PhysicsObjectRequirements { |
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boolean rightKeyHeld(); |
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boolean leftKeyHeld(); |
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} |
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@ -1,5 +1,4 @@ |
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package sig.objects.actor; |
package sig.objects.actor; |
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public interface RenderedObject { |
public interface RenderedObject { |
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} |
} |
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