Add classic camera controller
This commit is contained in:
CrushedPixel
@@ -1,116 +1,183 @@
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package com.replaymod.replay.camera;
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import net.minecraft.client.Minecraft;
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import net.minecraft.client.settings.KeyBinding;
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import net.minecraft.util.MathHelper;
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import net.minecraft.util.Vec3;
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import org.lwjgl.Sys;
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// TODO: Marius is responsible for this. Please, someone clean it up.
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public class ClassicCameraController implements CameraController {
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private static final double SPEED_CHANGE = 0.5;
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private static final double LOWER_SPEED = 2;
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private static final double UPPER_SPEED = 20;
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private final CameraEntity camera;
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private double MAX_SPEED = 10;
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private double THRESHOLD = MAX_SPEED / 20;
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private double DECAY = MAX_SPEED/3;
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private Vec3 direction;
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private Vec3 dirBefore;
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private double motion;
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private long lastCall = Sys.getTime();
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private boolean speedup = false;
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public ClassicCameraController(CameraEntity camera) {
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this.camera = camera;
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}
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@Override
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public void update(float partialTicksPassed) {
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// TODO
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boolean forward = false, backward = false, left = false, right = false, up = false, down = false;
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speedup = false;
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for(KeyBinding kb : Minecraft.getMinecraft().gameSettings.keyBindings) {
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if(!kb.isKeyDown()) continue;
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if(kb.getKeyDescription().equals("key.forward")) {
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forward = true;
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speedup = true;
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}
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if(kb.getKeyDescription().equals("key.back")) {
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backward = true;
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speedup = true;
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}
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if(kb.getKeyDescription().equals("key.jump")) {
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up = true;
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speedup = true;
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}
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if(kb.getKeyDescription().equals("key.left")) {
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left = true;
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speedup = true;
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}
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if(kb.getKeyDescription().equals("key.right")) {
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right = true;
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speedup = true;
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}
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if(kb.getKeyDescription().equals("key.sneak")) {
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down = true;
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speedup = true;
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}
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}
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forwardCameraMovement(forward, backward, left, right, up, down);
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updateMovement();
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}
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@Override
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public void increaseSpeed() {
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setCameraMaximumSpeed(MAX_SPEED + SPEED_CHANGE);
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}
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@Override
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public void decreaseSpeed() {
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setCameraMaximumSpeed(MAX_SPEED - SPEED_CHANGE);
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}
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private void setCameraMaximumSpeed(double maxSpeed) {
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if(maxSpeed < LOWER_SPEED || maxSpeed > UPPER_SPEED) return;
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MAX_SPEED = maxSpeed;
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THRESHOLD = MAX_SPEED / 20;
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DECAY = 5;
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}
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// public static final double SPEED_CHANGE = 0.5;
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// public static final double LOWER_SPEED = 2;
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// public static final double UPPER_SPEED = 20;
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//
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// private static double MAX_SPEED = 10;
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// private static double THRESHOLD = MAX_SPEED / 20;
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// private static double DECAY = MAX_SPEED/3;
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//
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// public static void modifyCameraSpeed(boolean increase) {
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// setCameraMaximumSpeed(getCameraMaximumSpeed() + (increase ? 1 : -1) * SPEED_CHANGE);
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// }
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//
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// public static void setCameraMaximumSpeed(double maxSpeed) {
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// if(maxSpeed < LOWER_SPEED || maxSpeed > UPPER_SPEED) return;
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// MAX_SPEED = maxSpeed;
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// THRESHOLD = MAX_SPEED / 20;
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// DECAY = 5;
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// }
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//
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// public static double getCameraMaximumSpeed() {
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// return MAX_SPEED;
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// }
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//
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// private Vec3 direction;
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// private Vec3 dirBefore;
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// private double motion;
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// private long lastCall = 0;
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//
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// private boolean speedup = false;
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//
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// //frac = time since last tick
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// public void updateMovement() {
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//
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// long frac = Sys.getTime() - lastCall;
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//
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// if(frac == 0) return;
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//
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// double decFac = Math.max(0, 1 - (DECAY * (frac / 1000D)));
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//
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// if(speedup) {
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// if(motion < THRESHOLD) motion = THRESHOLD;
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// motion /= decFac;
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// } else {
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// motion *= decFac;
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// }
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//
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// motion = Math.min(motion, MAX_SPEED);
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//
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// lastCall = Sys.getTime();
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//
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// if(direction == null || motion < THRESHOLD) {
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// return;
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// }
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//
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// Vec3 movement = direction.normalize();
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// double factor = motion * (frac / 1000D);
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//
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// moveCamera(movement.xCoord * factor, movement.yCoord * factor, movement.zCoord * factor);
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// }
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//
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// public void setMovement(MoveDirection dir) {
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// switch(dir) {
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// case BACKWARD:
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// direction = this.getVectorForRotation(-rotationPitch, rotationYaw - 180);
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// break;
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// case DOWN:
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// direction = this.getVectorForRotation(90, 0);
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// break;
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// case FORWARD:
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// direction = this.getVectorForRotation(rotationPitch, rotationYaw);
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// break;
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// case LEFT:
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// direction = this.getVectorForRotation(0, rotationYaw - 90);
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// break;
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// case RIGHT:
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// direction = this.getVectorForRotation(0, rotationYaw + 90);
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// break;
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// case UP:
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// direction = this.getVectorForRotation(-90, 0);
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// break;
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// }
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//
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// Vec3 dbf = direction;
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//
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// if(dirBefore != null) {
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// direction = dirBefore.normalize().add(direction);
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// }
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//
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// dirBefore = dbf;
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//
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// updateMovement();
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// }
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//
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// public enum MoveDirection {
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// UP, DOWN, LEFT, RIGHT, FORWARD, BACKWARD
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// }
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private void forwardCameraMovement(boolean forward, boolean backward, boolean left, boolean right, boolean up, boolean down) {
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if(forward && !backward) {
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setMovement(MoveDirection.FORWARD);
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} else if(backward && !forward) {
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setMovement(MoveDirection.BACKWARD);
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}
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if(left && !right) {
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setMovement(MoveDirection.LEFT);
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} else if(right && !left) {
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setMovement(MoveDirection.RIGHT);
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}
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if(up && !down) {
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setMovement(MoveDirection.UP);
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} else if(down && !up) {
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setMovement(MoveDirection.DOWN);
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}
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}
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private void updateMovement() {
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long frac = Sys.getTime() - lastCall;
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if(frac == 0) return;
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double decFac = Math.max(0, 1 - (DECAY * (frac / 1000D)));
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if(speedup) {
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if(motion < THRESHOLD) motion = THRESHOLD;
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motion /= decFac;
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} else {
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motion *= decFac;
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}
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motion = Math.min(motion, MAX_SPEED);
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lastCall = Sys.getTime();
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if(direction == null || motion < THRESHOLD) {
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return;
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}
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Vec3 movement = direction.normalize();
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double factor = motion * (frac / 1000D);
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camera.moveCamera(movement.xCoord * factor, movement.yCoord * factor, movement.zCoord * factor);
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}
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private void setMovement(MoveDirection dir) {
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float rotationPitch = camera.rotationPitch, rotationYaw = camera.rotationYaw;
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switch(dir) {
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case BACKWARD:
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direction = this.getVectorForRotation(-rotationPitch, rotationYaw - 180);
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break;
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case DOWN:
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direction = this.getVectorForRotation(90, 0);
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break;
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case FORWARD:
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direction = this.getVectorForRotation(rotationPitch, rotationYaw);
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break;
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case LEFT:
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direction = this.getVectorForRotation(0, rotationYaw - 90);
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break;
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case RIGHT:
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direction = this.getVectorForRotation(0, rotationYaw + 90);
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break;
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case UP:
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direction = this.getVectorForRotation(-90, 0);
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break;
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}
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Vec3 dbf = direction;
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if(dirBefore != null) {
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direction = dirBefore.normalize().add(direction);
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}
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dirBefore = dbf;
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updateMovement();
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}
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private Vec3 getVectorForRotation(float pitch, float yaw) {
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float f2 = MathHelper.cos(-yaw * 0.017453292F - (float) Math.PI);
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float f3 = MathHelper.sin(-yaw * 0.017453292F - (float)Math.PI);
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float f4 = -MathHelper.cos(-pitch * 0.017453292F);
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float f5 = MathHelper.sin(-pitch * 0.017453292F);
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return new Vec3((double)(f3 * f4), (double)f5, (double)(f2 * f4));
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}
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public enum MoveDirection {
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UP, DOWN, LEFT, RIGHT, FORWARD, BACKWARD
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}
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}
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