1 files changed, 57 insertions, 0 deletions
diff --git a/src/main/java/eu/olli/cowmoonication/Utils.java b/src/main/java/eu/olli/cowmoonication/Utils.java
new file mode 100644
index 0000000..ac3167c
--- /dev/null
+++ b/src/main/java/eu/olli/cowmoonication/Utils.java
@@ -0,0 +1,57 @@
+package eu.olli.cowmoonication;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.util.ChatComponentText;
+import net.minecraft.util.IChatComponent;
+import net.minecraftforge.client.event.ClientChatReceivedEvent;
+import net.minecraftforge.common.MinecraftForge;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class Utils {
+    public static final Pattern VALID_USERNAME = Pattern.compile("^[\\w]{1,16}$");
+    private static final Pattern USELESS_JSON_CONTENT_PATTERN = Pattern.compile("\"[A-Za-z]+\":false,?");
+    private final Cowmoonication main;
+    private String[] aboveChatMessage;
+    private long aboveChatMessageExpiration;
+
+    public Utils(Cowmoonication main) {
+        this.main = main;
+    }
+
+    public void sendMessage(String text) {
+        sendMessage(new ChatComponentText(text));
+    }
+
+    public void sendMessage(IChatComponent chatComponent) {
+        ClientChatReceivedEvent event = new ClientChatReceivedEvent((byte) 1, chatComponent);
+        MinecraftForge.EVENT_BUS.post(event);
+        if (!event.isCanceled()) {
+            Minecraft.getMinecraft().thePlayer.addChatMessage(event.message);
+        }
+    }
+
+    public void sendAboveChatMessage(String... text) {
+        aboveChatMessage = text;
+        aboveChatMessageExpiration = Minecraft.getSystemTime() + 5000;
+    }
+
+    public String[] getAboveChatMessage() {
+        if (aboveChatMessageExpiration < Minecraft.getSystemTime()) {
+            // message expired
+            aboveChatMessage = null;
+        }
+        return aboveChatMessage;
+    }
+
+    public boolean isValidMcName(String username) {
+        return VALID_USERNAME.matcher(username).matches();
+    }
+
+    public String cleanChatComponent(IChatComponent chatComponent) {
+        String component = IChatComponent.Serializer.componentToJson(chatComponent);
+        Matcher jsonMatcher = USELESS_JSON_CONTENT_PATTERN.matcher(component);
+        return jsonMatcher.replaceAll("");
+    }
+}