75 lines
2.7 KiB
Java
75 lines
2.7 KiB
Java
package com.replaymod.replay.camera;
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import net.minecraft.client.Minecraft;
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import net.minecraft.client.settings.GameSettings;
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import net.minecraft.client.settings.KeyBinding;
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import org.lwjgl.util.vector.Vector3f;
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/**
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* Camera controller performing vanilla creative-like camera movements.
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*/
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public class VanillaCameraController implements CameraController {
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private static final int MAX_SPEED = 1000;
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private static final int MIN_SPEED = -1000;
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private static final Vector3f[] DIRECTIONS = new Vector3f[]{
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new Vector3f(0, 0, 1), new Vector3f(0, 0, -1), new Vector3f(1, 0, 0), new Vector3f(-1, 0, 0),
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new Vector3f(0, 1, 0), new Vector3f(0, -1, 0),
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};
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private final KeyBinding[] bindings = new KeyBinding[6];
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private final CameraEntity camera;
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private int speed;
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public VanillaCameraController(Minecraft mc, CameraEntity camera) {
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this.camera = camera;
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GameSettings gameSettings = mc.gameSettings;
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this.bindings[0] = gameSettings.keyBindForward;
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this.bindings[1] = gameSettings.keyBindBack;
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this.bindings[2] = gameSettings.keyBindLeft;
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this.bindings[3] = gameSettings.keyBindRight;
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this.bindings[4] = gameSettings.keyBindJump;
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this.bindings[5] = gameSettings.keyBindSneak;
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}
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@Override
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public void update(float partialTicksPassed) {
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if (partialTicksPassed == 0) return;
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Vector3f direction = new Vector3f(0, 0, 0);
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for (int i = 0; i < 6; i++) { // First, get movement direction depending on keys pressed
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if (bindings[i].getIsKeyPressed()) {
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Vector3f.add(direction, DIRECTIONS[i], direction);
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}
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}
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if (direction.length() == 0) return;
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direction.normalise(direction); // Normalize, so we don't move quicker if we hold down multiple keys
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double yawRadians = Math.toRadians(camera.rotationYaw);
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float yawSin = (float) Math.sin(yawRadians), yawCos = (float) Math.cos(yawRadians);
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// Rotate by yaw
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direction.set(
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direction.x * yawCos - direction.z * yawSin,
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direction.y,
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direction.x * yawSin + direction.z * yawCos
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);
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// Adjust for current speed
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// We transform speed to blocks per second: x->2^(x/300+1)
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direction.scale((float) Math.pow(2, speed / 300d + 1));
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// Adjust for time passed
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direction.scale(partialTicksPassed / 20);
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// Actually move
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camera.moveCamera(direction.x, direction.y, direction.z);
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}
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@Override
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public void increaseSpeed() {
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speed = Math.min(MAX_SPEED, speed + 1);
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}
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@Override
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public void decreaseSpeed() {
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speed = Math.max(MIN_SPEED, speed - 1);
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}
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}
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