interpolation, better alpha blending

src/main/java/com/lumijiez/lumiscope/handlers/RadarPacketHandler.java

@@ -26,7 +26,7 @@ public class RadarPacketHandler {
         for (EntityPlayerMP otherPlayer : player.getServerWorld().getMinecraftServer().getPlayerList().getPlayers()) {
             if (!otherPlayer.equals(player) && player.getDistance(otherPlayer) <= 100) {
                 double direction = getPlayerDirection(player, otherPlayer);
-                playerInfos.add(new RadarPacket.PlayerInfo(otherPlayer.getName(), direction));
+                playerInfos.add(new RadarPacket.PlayerInfo(otherPlayer.getName(), direction, player.getDistance(otherPlayer)));
             }
         }
         INSTANCE.sendTo(new RadarPacket(playerInfos), player);

src/main/java/com/lumijiez/lumiscope/network/RadarPacket.java

@@ -14,12 +14,13 @@ public class RadarPacket implements IMessage {
     public static class PlayerInfo {
         public String name;
         public double direction;
+        public double distance;
 
-        public PlayerInfo(String name, double direction) {
+        public PlayerInfo(String name, double direction, double distance) {
             this.name = name;
             this.direction = direction;
+            this.distance = distance;
         }
-
     }
 
     private List<PlayerInfo> playerInfos;
@@ -40,6 +41,7 @@ public class RadarPacket implements IMessage {
             buf.writeInt(nameBytes.length);
             buf.writeBytes(nameBytes);
             buf.writeDouble(info.direction);
+            buf.writeDouble(info.distance);
         }
     }
 
@@ -53,7 +55,8 @@ public class RadarPacket implements IMessage {
             buf.readBytes(nameBytes);
             String name = new String(nameBytes);
             double direction = buf.readDouble();
-            playerInfos.add(new PlayerInfo(name, direction));
+            double distance = buf.readDouble();
+            playerInfos.add(new PlayerInfo(name, direction, distance));
         }
     }
 

src/main/java/com/lumijiez/lumiscope/render/ShortRadarRenderer.java

@@ -15,6 +15,7 @@ import net.minecraftforge.fml.relauncher.SideOnly;
 import net.minecraftforge.items.wrapper.PlayerOffhandInvWrapper;
 import org.lwjgl.opengl.GL11;
 
+import java.awt.*;
 import java.util.List;
 
 @SideOnly(Side.CLIENT)
@@ -58,7 +59,7 @@ public class ShortRadarRenderer {
 
     private void renderRadar(float partialTicks) {
         GlStateManager.pushMatrix();
-        GlStateManager.translate(0, 0, 0);
+        GlStateManager.translate(0, 0.01, 0);
 
         mc.getTextureManager().bindTexture(radarTexture);
 
@@ -66,13 +67,22 @@ public class ShortRadarRenderer {
         GlStateManager.disableLighting();
         GlStateManager.disableCull();
 
+        GlStateManager.enableBlend();
+        GlStateManager.blendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
+        GlStateManager.color(1.0f, 1.0f, 1.0f, 0.5f);
+
         drawTexturedCircle(1.4f);
 
         for (RadarPacket.PlayerInfo info : playerInfos) {
             double angle = info.direction - Math.toRadians(90);
             drawTexturedLine(1.4f, angle);
         }
+        GlStateManager.color(1.0f, 1.0f, 1.0f, 1.0f);
+        GlStateManager.disableBlend();
 
+        RenderHelper.disableStandardItemLighting();
+        GlStateManager.enableTexture2D();
+        GlStateManager.enableCull();
         for (RadarPacket.PlayerInfo info : playerInfos) {
             double angle = info.direction - Math.toRadians(90);
             GlStateManager.pushMatrix();
@@ -82,13 +92,14 @@ public class ShortRadarRenderer {
             GlStateManager.rotate((float) Math.toDegrees(angle), 0, 0, 1);
             GlStateManager.scale(0.01, 0.01, 0.01);
 
-            RenderHelper.disableStandardItemLighting();
+            mc.fontRenderer.drawStringWithShadow(info.name, -mc.fontRenderer.getStringWidth(info.name) - 50 , -4, 0x808080);
-            GlStateManager.enableTexture2D();
+            mc.fontRenderer.drawStringWithShadow("(" + (int) info.distance +"m)", -mc.fontRenderer.getStringWidth(info.name) + 5 , -4, interpolateColor(100, 0, (int) info.distance));
-            mc.fontRenderer.drawStringWithShadow(info.name, -mc.fontRenderer.getStringWidth(info.name) - 50 , -4, 0xAAFF00);
+
-            GlStateManager.disableTexture2D();
-            RenderHelper.enableStandardItemLighting();
             GlStateManager.popMatrix();
         }
+        GlStateManager.disableCull();
+        GlStateManager.disableTexture2D();
+        RenderHelper.enableStandardItemLighting();
 
         GlStateManager.enableDepth();
         GlStateManager.enableLighting();
@@ -152,4 +163,15 @@ public class ShortRadarRenderer {
 
         GlStateManager.disableTexture2D();
     }
+
+    private int interpolateColor(int maxDistance, int minDistance, int currentDistance) {
+        int clampedDistance = Math.max(minDistance, Math.min(maxDistance, currentDistance));
+        float ratio = (float) (maxDistance - clampedDistance) / (maxDistance - minDistance);
+
+        int r = (int) (ratio * 255);
+        int g = (int) ((1 - ratio) * 255);
+        int b = 0;
+
+        return new Color(r, g, b).getRGB();
+    }
 }