Drag UI
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Patrick
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package de.fullrisk.citrusDev.UIHelper;
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import de.fullrisk.citrusDev.Config;
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import de.fullrisk.citrusDev.UI.Module_Coords;
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import de.fullrisk.citrusDev.UI.Module_FPS;
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import de.fullrisk.citrusDev.UI.Module_KeyStrokes;
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import io.wispforest.owo.ui.container.FlowLayout;
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import io.wispforest.owo.ui.core.Positioning;
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import net.minecraft.client.Minecraft;
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import org.lwjgl.BufferUtils;
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import org.lwjgl.glfw.GLFW;
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import java.nio.DoubleBuffer;
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import java.util.function.BooleanSupplier;
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import java.util.function.IntConsumer;
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import java.util.function.IntSupplier;
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import java.util.function.Supplier;
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public class DraggableHud {
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private static boolean editMode = false;
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private static boolean dragging = false;
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private static FlowLayout dragTarget = null;
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private static double dragStartMouseX, dragStartMouseY;
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private static int dragModuleStartX, dragModuleStartY;
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private static ModuleDragConfig currentConfig;
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private static boolean wasLeftDown = false;
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private static boolean cursorEnabled = false;
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private static final DoubleBuffer cursorXBuf = BufferUtils.createDoubleBuffer(1);
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private static final DoubleBuffer cursorYBuf = BufferUtils.createDoubleBuffer(1);
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public static boolean isEditMode() {
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return editMode;
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}
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public static void setEditMode(boolean enabled) {
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editMode = enabled;
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if (!enabled) {
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wasLeftDown = false;
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}
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}
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public static void tick() {
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Minecraft mc = Minecraft.getInstance();
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if (mc.getWindow() == null) return;
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long window = mc.getWindow().handle();
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if (mc.screen != null) {
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if (dragging) endDrag();
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if (editMode) {
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editMode = false;
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disableCursor(window);
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}
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wasLeftDown = false;
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return;
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}
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if (editMode && GLFW.glfwGetKey(window, GLFW.GLFW_KEY_ESCAPE) == GLFW.GLFW_PRESS) {
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editMode = false;
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disableCursor(window);
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wasLeftDown = false;
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return;
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}
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boolean leftDown = GLFW.glfwGetMouseButton(window, GLFW.GLFW_MOUSE_BUTTON_LEFT) == GLFW.GLFW_PRESS;
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if (editMode && !cursorEnabled) {
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int ww = mc.getWindow().getWidth();
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int wh = mc.getWindow().getHeight();
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GLFW.glfwSetCursorPos(window, ww / 2.0, wh / 2.0);
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GLFW.glfwSetInputMode(window, GLFW.GLFW_CURSOR, GLFW.GLFW_CURSOR_NORMAL);
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cursorEnabled = true;
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} else if (!editMode && cursorEnabled) {
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disableCursor(window);
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wasLeftDown = leftDown;
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return;
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}
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if (cursorEnabled) {
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cursorXBuf.clear();
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cursorYBuf.clear();
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GLFW.glfwGetCursorPos(window, cursorXBuf, cursorYBuf);
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double mouseX = cursorXBuf.get(0);
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double mouseY = cursorYBuf.get(0);
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if (leftDown && !wasLeftDown) {
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tryStartDrag(mouseX, mouseY);
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} else if (dragging && leftDown) {
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updateDrag(mouseX, mouseY);
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} else if (dragging && !leftDown) {
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endDrag();
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}
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}
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wasLeftDown = leftDown;
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}
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private static void disableCursor(long window) {
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if (cursorEnabled) {
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GLFW.glfwSetInputMode(window, GLFW.GLFW_CURSOR, GLFW.GLFW_CURSOR_DISABLED);
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cursorEnabled = false;
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}
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}
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private static void tryStartDrag(double mouseX, double mouseY) {
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Minecraft mc = Minecraft.getInstance();
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var win = mc.getWindow();
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int sw = win.getWidth();
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int sh = win.getHeight();
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int gw = win.getGuiScaledWidth();
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int gh = win.getGuiScaledHeight();
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double guiMouseX = mouseX * gw / sw;
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double guiMouseY = mouseY * gh / sh;
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for (ModuleDragConfig mod : getModules()) {
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FlowLayout container = mod.containerGetter.get();
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if (container == null || !mod.isVisible.getAsBoolean()) continue;
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int modX = mod.getX.getAsInt();
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int modY = mod.getY.getAsInt();
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int left = (int) ((gw - mod.hitW) * modX / 100.0);
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int top = (int) ((gh - mod.hitH) * modY / 100.0);
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if (guiMouseX >= left && guiMouseX <= left + mod.hitW
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&& guiMouseY >= top && guiMouseY <= top + mod.hitH) {
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dragging = true;
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dragTarget = container;
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dragStartMouseX = mouseX;
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dragStartMouseY = mouseY;
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dragModuleStartX = modX;
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dragModuleStartY = modY;
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currentConfig = mod;
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return;
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}
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}
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}
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private static void updateDrag(double mouseX, double mouseY) {
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if (!dragging || dragTarget == null || currentConfig == null) return;
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Minecraft mc = Minecraft.getInstance();
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var win = mc.getWindow();
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int sw = win.getWidth();
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int sh = win.getHeight();
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int gw = win.getGuiScaledWidth();
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int gh = win.getGuiScaledHeight();
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double deltaX = mouseX - dragStartMouseX;
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double deltaY = mouseY - dragStartMouseY;
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double guiDeltaX = deltaX * gw / sw;
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double guiDeltaY = deltaY * gh / sh;
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int newX = dragModuleStartX + (int) (guiDeltaX / (gw - currentConfig.hitW) * 100);
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int newY = dragModuleStartY + (int) (guiDeltaY / (gh - currentConfig.hitH) * 100);
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newX = Math.max(0, Math.min(100, newX));
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newY = Math.max(0, Math.min(100, newY));
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dragTarget.positioning(Positioning.relative(newX, newY));
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currentConfig.setX.accept(newX);
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currentConfig.setY.accept(newY);
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}
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private static void endDrag() {
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if (currentConfig != null) {
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Config.get().save();
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}
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dragging = false;
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dragTarget = null;
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currentConfig = null;
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}
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private static ModuleDragConfig[] getModules() {
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Config c = Config.get();
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return new ModuleDragConfig[]{
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new ModuleDragConfig(
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Module_Coords::getCoordinates, 120, 50,
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() -> c.coordsX, v -> c.coordsX = v,
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() -> c.coordsY, v -> c.coordsY = v,
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Module_Coords::isEnabled
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),
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new ModuleDragConfig(
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Module_KeyStrokes::getKeyContainer,
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c.keySize * 3 + 20, c.keySize * 2 + 20,
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() -> c.keyX, v -> c.keyX = v,
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() -> c.keyY, v -> c.keyY = v,
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Module_KeyStrokes::isEnabled
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),
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new ModuleDragConfig(
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Module_FPS::getFpsContainer, 100, 30,
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() -> c.fpsX, v -> c.fpsX = v,
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() -> c.fpsY, v -> c.fpsY = v,
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Module_FPS::isEnabled
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)
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};
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}
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private static class ModuleDragConfig {
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Supplier<FlowLayout> containerGetter;
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int hitW, hitH;
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IntSupplier getX;
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IntConsumer setX;
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IntSupplier getY;
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IntConsumer setY;
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BooleanSupplier isVisible;
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ModuleDragConfig(Supplier<FlowLayout> containerGetter, int hitW, int hitH,
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IntSupplier getX, IntConsumer setX,
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IntSupplier getY, IntConsumer setY,
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BooleanSupplier isVisible) {
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this.containerGetter = containerGetter;
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this.hitW = hitW;
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this.hitH = hitH;
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this.getX = getX;
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this.setX = setX;
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this.getY = getY;
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this.setY = setY;
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this.isVisible = isVisible;
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}
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}
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}
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