MainComponent in kotlin

[cavedroid.git] / core / src / ru / deadsoftware / cavedroid / misc / utils / RenderingUtils.kt

diff --git a/core/src/ru/deadsoftware/cavedroid/misc/utils/RenderingUtils.kt b/core/src/ru/deadsoftware/cavedroid/misc/utils/RenderingUtils.kt
index 5849f03c79f02356a2e14a3f3c58df7102421f0a..917f69b591933ee9a6bfc83354e5f012c0894363 100644 (file)
--- a/core/src/ru/deadsoftware/cavedroid/misc/utils/RenderingUtils.kt
+++ b/core/src/ru/deadsoftware/cavedroid/misc/utils/RenderingUtils.kt
@@ -1,9 +1,12 @@
 package ru.deadsoftware.cavedroid.misc.utils
 
+import com.badlogic.gdx.Gdx
 import com.badlogic.gdx.graphics.Color
+import com.badlogic.gdx.graphics.GL20
 import com.badlogic.gdx.graphics.g2d.GlyphLayout
 import com.badlogic.gdx.graphics.g2d.SpriteBatch
 import com.badlogic.gdx.math.Rectangle
+import ru.deadsoftware.cavedroid.MainConfig
 import ru.deadsoftware.cavedroid.misc.Assets
 
 private fun Rectangle.shifted(shift: Float) = Rectangle(x + shift, y, width, height)
@@ -31,12 +34,12 @@ fun Rectangle.cycledInsideWorld(
 
 fun forEachBlockInArea(
     area: Rectangle,
-    func: (x: Int, y: Int) -> Unit
+    func: (x: Int, y: Int) -> Unit,
 ) {
     val startMapX = area.x.bl
-    val endMapX = startMapX + area.width.bl + 1
+    val endMapX = (area.x + area.width - 1f).bl
     val startMapY = area.y.bl
-    val endMapY = startMapY + area.height.bl + 1
+    val endMapY = (area.y + area.height - 1f).bl
 
     for (x in startMapX..endMapX) {
         for (y in startMapY..endMapY) {
@@ -50,3 +53,46 @@ fun SpriteBatch.drawString(str: String, x: Float, y: Float, color: Color = Color
     Assets.minecraftFont.color = color
     return Assets.minecraftFont.draw(this, str, x, y)
 }
+
+/**
+ * Parses hex color string into [Color]
+ * Format is strictly #FFFFFF
+ */
+fun colorFromHexString(hex: String): Color {
+    if (hex[0] != '#' || hex.length != 7) {
+        return Color.WHITE
+    }
+
+    var rgba = try {
+        hex.substring(1).toInt(16)
+    } catch (e: NumberFormatException) {
+        0xffffff
+    }
+
+    rgba = (rgba shl 8) or 0xFF
+    return Color(rgba)
+}
+
+fun SpriteBatch.withScissors(
+    mainConfig: MainConfig,
+    x: Float,
+    y: Float,
+    width: Float,
+    height: Float,
+    block: () -> Unit
+) {
+    val scaleX = Gdx.graphics.width / mainConfig.width
+    val scaleY = Gdx.graphics.height / mainConfig.height
+
+    flush()
+    Gdx.gl.glEnable(GL20.GL_SCISSOR_TEST)
+    Gdx.gl.glScissor(
+        /* x = */ (x * scaleX).toInt(),
+        /* y = */ ((mainConfig.height - y - height) * scaleY).toInt(),
+        /* width = */ (width * scaleX).toInt(),
+        /* height = */ (height * scaleY).toInt()
+    )
+    block.invoke()
+    flush()
+    Gdx.gl.glDisable(GL20.GL_SCISSOR_TEST)
+}