package pneumaticCraft.client.render.pneumaticArmor;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.pathfinding.PathEntity;
import net.minecraft.pathfinding.PathPoint;
import net.minecraft.world.World;
import org.lwjgl.opengl.GL11;
import cpw.mods.fml.client.FMLClientHandler;
public class RenderNavigator{
private final int targetX;
private final int targetY;
private final int targetZ;
private final World worldObj;
private PathEntity path;
private boolean increaseAlpha;
private double alphaValue = 0.2D;
public RenderNavigator(World world, int targetX, int targetY, int targetZ){
this.targetX = targetX;
this.targetY = targetY;
this.targetZ = targetZ;
worldObj = world;
updatePath();
}
public void updatePath(){
EntityPlayer player = FMLClientHandler.instance().getClient().thePlayer;
path = worldObj.getEntityPathToXYZ(player, targetX, targetY, targetZ, 300, true, true, false, true);
}
public void render(boolean wirePath, boolean xRayEnabled, float partialTicks){
if(path == null) return;
GL11.glDepthMask(false);
if(xRayEnabled) GL11.glDisable(GL11.GL_DEPTH_TEST);
GL11.glDisable(GL11.GL_CULL_FACE);
GL11.glEnable(GL11.GL_BLEND);
GL11.glClear(GL11.GL_DEPTH_BUFFER_BIT);
GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
GL11.glDisable(GL11.GL_TEXTURE_2D);
GL11.glLineWidth(5.0F);
boolean noDestinationPath = !tracedToDestination();
Tessellator tess = Tessellator.instance;
GL11.glPushMatrix();
GL11.glTranslated(0, 0.01D, 0);
//Draws just wires
if(wirePath) {
if(noDestinationPath) {
GL11.glEnable(GL11.GL_LINE_STIPPLE);
GL11.glLineStipple(4, (short)0x00FF);
}
for(int i = 1; i < path.getCurrentPathLength(); i++) {
double red = 1;
if(path.getCurrentPathLength() - i < 200) {
red = (path.getCurrentPathLength() - i) * 0.005D;
}
GL11.glColor4d(red, 1 - red, 0, 0.5D);
PathPoint lastPoint = path.getPathPointFromIndex(i - 1);
PathPoint pathPoint = path.getPathPointFromIndex(i);
tess.startDrawing(GL11.GL_LINE_STRIP);
tess.addVertex(lastPoint.xCoord + 0.5D, lastPoint.yCoord, lastPoint.zCoord + 0.5D);
tess.addVertex((lastPoint.xCoord + pathPoint.xCoord) / 2D + 0.5D, Math.max(lastPoint.yCoord, pathPoint.yCoord), (lastPoint.zCoord + pathPoint.zCoord) / 2D + 0.5D);
tess.addVertex(pathPoint.xCoord + 0.5D, pathPoint.yCoord, pathPoint.zCoord + 0.5D);
tess.draw();
}
} else {
if(noDestinationPath) {
if(increaseAlpha) {
alphaValue += 0.005D;
if(alphaValue > 0.3D) increaseAlpha = false;
} else {
alphaValue -= 0.005D;
if(alphaValue < 0.2D) increaseAlpha = true;
}
} else {
if(alphaValue > 0.2D) alphaValue -= 0.005D;
}
for(int i = 0; i < path.getCurrentPathLength(); i++) {
double red = 1;
if(path.getCurrentPathLength() - i < 200) {
red = (path.getCurrentPathLength() - i) * 0.005D;
}
GL11.glColor4d(red, 1 - red, 0, alphaValue);
PathPoint pathPoint = path.getPathPointFromIndex(i);
tess.startDrawingQuads();
tess.addVertex(pathPoint.xCoord, pathPoint.yCoord, pathPoint.zCoord);
tess.addVertex(pathPoint.xCoord, pathPoint.yCoord, pathPoint.zCoord + 1);
tess.addVertex(pathPoint.xCoord + 1, pathPoint.yCoord, pathPoint.zCoord + 1);
tess.addVertex(pathPoint.xCoord + 1, pathPoint.yCoord, pathPoint.zCoord);
tess.draw();
}
}
GL11.glPopMatrix();
GL11.glEnable(GL11.GL_CULL_FACE);
GL11.glEnable(GL11.GL_DEPTH_TEST);
GL11.glDisable(GL11.GL_BLEND);
GL11.glDisable(GL11.GL_LINE_STIPPLE);
GL11.glDepthMask(true);
GL11.glEnable(GL11.GL_TEXTURE_2D);
}
public boolean tracedToDestination(){
if(path == null) return false;
PathPoint finalPoint = path.getFinalPathPoint();
return finalPoint.xCoord == targetX && finalPoint.yCoord == targetY && finalPoint.zCoord == targetZ;
}
}