Terrarum/src/net/torvald/terrarum/UIFakeGradOverlay.kt

package net.torvald.terrarum

import com.badlogic.gdx.graphics.Camera
import com.badlogic.gdx.graphics.Color
import com.badlogic.gdx.graphics.OrthographicCamera
import com.badlogic.gdx.graphics.g2d.SpriteBatch
import net.torvald.terrarum.ui.Toolkit
import net.torvald.terrarum.ui.UICanvas

/**
 * Created by minjaesong on 2021-09-09.
 */
class UIFakeGradOverlay : UICanvas() {

    override var width: Int
        get() = App.scr.width
        set(value) {}

    override var height: Int
        get() = App.scr.height
        set(value) {}

    override var openCloseTime: Second = 0f

    private val tex = CommonResourcePool.getAsTexture("title_halfgrad")

    init {
        setAsAlwaysVisible()
    }

    override fun updateUI(delta: Float) {}
    override fun renderUI(batch: SpriteBatch, camera: Camera) {
        blendMul(batch)
        batch.draw(tex, 0f, 0f, App.scr.halfwf * 1.5f, App.scr.hf)

        blendNormal(batch)
    }

    override fun doOpening(delta: Float) {}
    override fun doClosing(delta: Float) {}
    override fun endOpening(delta: Float) {}
    override fun endClosing(delta: Float) {}
    override fun dispose() {}
}

class UIFakeBlurOverlay(val blurRadius: Float, val nodarken: Boolean) : UICanvas() {

    override var width: Int
        get() = App.scr.width
        set(value) {}

    override var height: Int
        get() = App.scr.height
        set(value) {}

    override var openCloseTime: Second = 0f

    private val shaderBlur = App.loadShaderFromFile("assets/blur.vert", "assets/blur.frag")

    private val darken = Color(0.5f, 0.5f, 0.5f, 1f)

    override fun updateUI(delta: Float) {}
    override fun renderUI(batch: SpriteBatch, camera: Camera) {
        if (App.getConfigBoolean("fx_backgroundblur")) {
            Toolkit.blurEntireScreen(batch, camera as OrthographicCamera, blurRadius, 0, 0, width, height)
        }

        if (!nodarken) {
            blendMul(batch)
            batch.color = darken
            batch.fillRect(0f, 0f, width.toFloat(), height.toFloat())

            blendNormal(batch)
        }
    }

    override fun doOpening(delta: Float) {}
    override fun doClosing(delta: Float) {}
    override fun endOpening(delta: Float) {}
    override fun endClosing(delta: Float) {}
    override fun dispose() {
        shaderBlur.dispose()
    }
}