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package moe.nea.firmament.util.render
import com.mojang.blaze3d.systems.RenderSystem
import me.shedaniel.math.Color
import org.joml.Vector3f
import util.render.CustomRenderLayers
import kotlin.math.abs
import net.minecraft.client.gl.RenderPipelines
import net.minecraft.client.gui.DrawContext
import net.minecraft.client.gui.ScreenRect
import net.minecraft.client.render.VertexConsumerProvider
import net.minecraft.client.util.math.MatrixStack
import net.minecraft.util.Identifier
import moe.nea.firmament.util.MC
fun DrawContext.isUntranslatedGuiDrawContext(): Boolean {
return matrices.m00 == 1F && matrices.m11 == 1f && matrices.m01 == 0F && matrices.m10 == 0F && matrices.m20 == 0F && matrices.m21 == 0F
}
@Deprecated("Use the other drawGuiTexture")
fun DrawContext.drawGuiTexture(
x: Int, y: Int, z: Int, width: Int, height: Int, sprite: Identifier
) = this.drawGuiTexture(RenderPipelines.GUI_TEXTURED, sprite, x, y, width, height)
fun DrawContext.drawGuiTexture(
sprite: Identifier,
x: Int, y: Int, width: Int, height: Int
) = this.drawGuiTexture(RenderPipelines.GUI_TEXTURED, sprite, x, y, width, height)
fun DrawContext.drawTexture(
sprite: Identifier,
x: Int,
y: Int,
u: Float,
v: Float,
width: Int,
height: Int,
textureWidth: Int,
textureHeight: Int
) {
this.drawTexture(
RenderPipelines.GUI_TEXTURED,
sprite,
x,
y,
u,
v,
width,
height,
width,
height,
textureWidth,
textureHeight
)
}
data class LineRenderState(
override val x1: Int,
override val x2: Int,
override val y1: Int,
override val y2: Int,
override val scale: Float,
override val bounds: ScreenRect,
val lineWidth: Float,
val w: Int,
val h: Int,
val color: Int,
val direction: LineDirection,
) : MultiSpecialGuiRenderState() {
enum class LineDirection {
TOP_LEFT_TO_BOTTOM_RIGHT,
BOTTOM_LEFT_TO_TOP_RIGHT,
}
override fun createRenderer(vertexConsumers: VertexConsumerProvider.Immediate): MultiSpecialGuiRenderer<out MultiSpecialGuiRenderState> {
return LineRenderer(vertexConsumers)
}
override val scissorArea = null
}
class LineRenderer(vertexConsumers: VertexConsumerProvider.Immediate) :
MultiSpecialGuiRenderer<LineRenderState>(vertexConsumers) {
override fun getElementClass(): Class<LineRenderState> {
return LineRenderState::class.java
}
override fun getYOffset(height: Int, windowScaleFactor: Int): Float {
return height / 2F
}
override fun render(
state: LineRenderState,
matrices: MatrixStack
) {
val gr = MC.instance.gameRenderer
val client = MC.instance
gr.globalSettings
.set(
state.bounds.width,
state.bounds.height,
client.options.glintStrength.getValue(),
client.world?.time ?: 0L,
client.renderTickCounter,
client.options.menuBackgroundBlurrinessValue
)
RenderSystem.lineWidth(state.lineWidth)
val buf = vertexConsumers.getBuffer(CustomRenderLayers.LINES)
val matrix = matrices.peek()
val wh = state.w / 2F
val hh = state.h / 2F
val lowX = -wh
val lowY = if (state.direction == LineRenderState.LineDirection.BOTTOM_LEFT_TO_TOP_RIGHT) hh else -hh
val highX = wh
val highY = -lowY
val norm = Vector3f(highX - lowX, highY - lowY, 0F).normalize()
buf.vertex(matrix, lowX, lowY, 0F).color(state.color)
.normal(matrix, norm)
buf.vertex(matrix, highX, highY, 0F).color(state.color)
.normal(matrix, norm)
vertexConsumers.draw()
gr.globalSettings
.set(
client.window.framebufferWidth,
client.window.framebufferHeight,
client.options.glintStrength.getValue(),
client.world?.getTime() ?: 0L,
client.renderTickCounter,
client.options.menuBackgroundBlurrinessValue
)
}
override fun getName(): String? {
return "Firmament Line Renderer"
}
}
fun DrawContext.drawLine(fromX: Int, fromY: Int, toX: Int, toY: Int, color: Color, lineWidth: Float = 1F) {
if (toY < fromY) {
drawLine(toX, toY, fromX, fromY, color)
return
}
val originalRect = ScreenRect(
minOf(fromX, toX), minOf(toY, fromY),
abs(toX - fromX), abs(toY - fromY)
).transform(matrices)
val expansionFactor = 3
val rect = ScreenRect(
originalRect.left - expansionFactor,
originalRect.top - expansionFactor,
originalRect.width + expansionFactor * 2,
originalRect.height + expansionFactor * 2
)
// TODO: expand the bounds so that the thickness of the line can be used
// TODO: fix this up to work with scissorarea
state.addSpecialElement(
LineRenderState(
rect.left, rect.right, rect.top, rect.bottom, 1F, rect, lineWidth,
originalRect.width, originalRect.height, color.color,
if (fromX < toX) LineRenderState.LineDirection.TOP_LEFT_TO_BOTTOM_RIGHT else LineRenderState.LineDirection.BOTTOM_LEFT_TO_TOP_RIGHT
)
)
}
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