package net.encode.wurmesp.feature;

import com.wurmonline.client.game.PlayerPosition;
import net.encode.wurmesp.WurmEspMod;
import net.encode.wurmesp.util.RenderUtils;
import net.encode.wurmesp.util.TerrainUtils;

public class FeatureTilesCloseBy
extends Feature {
    @Override
    public void refresh() {
        WurmEspMod._closeByTerrain.clear();
        WurmEspMod._terrainBuffer = this.world.getNearTerrainBuffer();
        PlayerPosition pos = this.world.getPlayer().getPos();
        int px = pos.getTileX();
        int py = pos.getTileY();
        int size = 6;
        int sx = px - size / 2;
        int sy = py - size / 2;
        float ox = this.world.getRenderOriginX();
        float oy = this.world.getRenderOriginY();
        for (int x = 0; x < size + 1; ++x) {
            for (int y = 0; y < size + 1; ++y) {
                float tileX = x + sx;
                float tileY = y + sy;
                float curX = tileX * 4.0f - ox;
                float curY = tileY * 4.0f - oy;
                float nextX = (tileX + 1.0f) * 4.0f - ox;
                float nextY = (tileY + 1.0f) * 4.0f - oy;
                float x0 = curX + 0.1f;
                float y0 = curY + 0.1f;
                float x1 = nextX - 0.1f;
                float y1 = nextY - 0.1f;
                float z0 = WurmEspMod._terrainBuffer.getHeight((int)tileX, (int)tileY);
                float z1 = WurmEspMod._terrainBuffer.getHeight((int)tileX + 1, (int)tileY);
                float z2 = WurmEspMod._terrainBuffer.getHeight((int)tileX, (int)tileY + 1);
                float z3 = WurmEspMod._terrainBuffer.getHeight((int)tileX + 1, (int)tileY + 1);
                WurmEspMod._closeByTerrain.add(new float[]{x0, z0, y0, x1, z1, y0, x0, z2, y1, x1, z3, y1});
            }
        }
    }

    @Override
    public void queue() {
        if (WurmEspMod._closeByTerrain == null) {
            return;
        }
        WurmEspMod._closeByTerrain.forEach(t -> {
            float[] color = TerrainUtils.isFlat(t) ? new float[]{0.0f, 1.0f, 0.0f, 0.5f} : new float[]{1.0f, 1.0f, 0.0f, 0.5f};
            int[] indexdata = new int[]{1, 0, 0, 2, 2, 3, 3, 1};
            RenderUtils.renderPrimitiveLines(4, t, indexdata, this.queuePick, color);
        });
    }
}