Add WBar

1 files changed, 69 insertions, 0 deletions

diff --git a/src/main/kotlin/moe/nea/firmament/gui/WBar.kt b/src/main/kotlin/moe/nea/firmament/gui/WBar.kt
new file mode 100644
index 0000000..879805d
--- /dev/null
+++ b/src/main/kotlin/moe/nea/firmament/gui/WBar.kt
@@ -0,0 +1,69 @@
+package moe.nea.firmament.gui
+
+import io.github.cottonmc.cotton.gui.client.ScreenDrawing
+import io.github.cottonmc.cotton.gui.widget.WWidget
+import io.github.cottonmc.cotton.gui.widget.data.Texture
+import me.shedaniel.math.Color
+import net.minecraft.client.util.math.MatrixStack
+import moe.nea.firmament.Firmament
+
+data class WBar(
+    var progress: Double,
+    val total: Double,
+    val fillColor: Color,
+    val emptyColor: Color,
+) : WWidget() {
+    val resource = Firmament.identifier("textures/gui/bar.png")
+    val left = Texture(resource, 0 / 64F, 0 / 64F, 4 / 64F, 8 / 64F)
+    val middle = Texture(resource, 4 / 64F, 0 / 64F, 4 / 64F, 8 / 64F)
+    val right = Texture(resource, 8 / 64F, 0 / 64F, 4 / 64F, 8 / 64F)
+    val segmentOverlay = Texture(resource, 12 / 64F, 0 / 64F, 15 / 64F, 8 / 64F)
+
+    override fun canResize(): Boolean {
+        return true
+    }
+
+    private fun drawSection(
+        matrices: MatrixStack,
+        texture: Texture,
+        x: Int,
+        y: Int,
+        width: Int,
+        sectionStart: Double,
+        sectionEnd: Double
+    ) {
+        if (sectionEnd < progress && width == 4) {
+            ScreenDrawing.texturedRect(matrices, x, y, 4, 8, texture, fillColor.color)
+            return
+        }
+        if (sectionStart > progress && width == 4) {
+            ScreenDrawing.texturedRect(matrices, x, y, 4, 8, texture, emptyColor.color)
+            return
+        }
+        val increasePerPixel = (sectionEnd - sectionStart / 4)
+        var valueAtPixel = sectionStart
+        for (i in (0 until width)) {
+            ScreenDrawing.texturedRect(
+                matrices, x + i, y, 1, 8,
+                texture.image, texture.u1 + i / 64F, texture.v1, texture.u1 + (i + 1) / 64F, texture.v2,
+                if (valueAtPixel < progress) fillColor.color else emptyColor.color
+            )
+            valueAtPixel += increasePerPixel
+        }
+    }
+
+    override fun paint(matrices: MatrixStack, x: Int, y: Int, mouseX: Int, mouseY: Int) {
+        var i = 0
+        while (i < width - 4) {
+            drawSection(
+                matrices,
+                if (i == 0) left else middle,
+                x + i, y,
+                (width - (i + 4)).coerceAtMost(4),
+                i * total / width, (i + 4) * total / width
+            )
+            i += 4
+        }
+        drawSection(matrices, right, x + width - 4, y, 4, (width - 4) * total / width, total)
+    }
+}