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better rotation mechanics

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This commit is contained in:
nora 2020-12-11 22:33:18 +01:00
parent 3bf79290bb
commit 35c47c50b8
10 changed files with 98 additions and 8 deletions
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20
src/main/java/objects/ships/Turret.java
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@ -1,5 +1,6 @@
package objects.ships;
import core.ExMath;
import core.Master;
import core.Vector2D;
import objects.GameObject;
@ -11,18 +12,21 @@ import java.awt.*;
*/
public class Turret extends GameObject {
private static final double ROTATION_SPEED = 2;
private static final double ROTATION_SPEED = 0.05;
private static final int SHOT_EFFECT_TIME = 300;
private static final int SHELL_SPEED = 10;
BattleShip battleShip;
private int barrelAmount = 3;
private double rotation;
private Color mainColor;
private long lastShot = 0;
private static int SHOT_EFFECT_TIME = 300;
private static int SHELL_SPEED = 10;
private double rotation;
//private double rotation;
public Turret(BattleShip battleShip, double x, double y, double size, int barrelAmount) {
super(x, y, size, size);
@ -58,6 +62,7 @@ public class Turret extends GameObject {
g2d.setPaint(Color.BLACK);
int barrelSpacing = sizeAbs / (barrelAmount + 1);
g2d.rotate(rotation, xCenterAbs, yCenterAbs);
for (int i = 0; i < barrelAmount; i++) {
int barrelX = xAbs + (i + 1) * barrelSpacing;
int frontPosY = yAbs - sizeAbs / 2;
@ -82,7 +87,10 @@ public class Turret extends GameObject {
int yCenterAbs = yAbs + sizeAbs / 2;
Point msLoc = master.getMouseLocation();
rotation = -Math.atan2(xCenterAbs - msLoc.x, yCenterAbs - msLoc.y);
double targetRotation = -Math.atan2(xCenterAbs - msLoc.x, yCenterAbs - msLoc.y);
rotation = ExMath.angleLerp(rotation, targetRotation, ROTATION_SPEED);
int barrelSpacing = sizeAbs / (barrelAmount + 1);
@ -93,7 +101,7 @@ public class Turret extends GameObject {
if (master.isMousePressed()) {
lastShot = System.currentTimeMillis();
Vector2D shellVel = new Vector2D(xCenterAbs - msLoc.x, yCenterAbs - msLoc.y).normalized().negative().multiply(SHELL_SPEED);
Vector2D shellVel = Vector2D.getUnitVector(rotation).negative().multiply(SHELL_SPEED);
Vector2D pos = Vector2D.rotateAround(new Vector2D(xCenterAbs, yCenterAbs), new Vector2D(barrelX, frontPosY), rotation, Vector2D.COUNTERCLOCKWISE);
master.create(new Shell(pos, new Vector2D(10, 10), shellVel));