Replace references to NEU with Firmament

1 files changed, 105 insertions, 0 deletions

diff --git a/src/main/kotlin/moe/nea/firmament/util/render/block.kt b/src/main/kotlin/moe/nea/firmament/util/render/block.kt
new file mode 100644
index 0000000..1fd1393
--- /dev/null
+++ b/src/main/kotlin/moe/nea/firmament/util/render/block.kt
@@ -0,0 +1,105 @@
+package moe.nea.firmament.util.render
+
+import com.mojang.blaze3d.systems.RenderSystem
+import org.joml.Matrix4f
+import net.minecraft.client.gl.VertexBuffer
+import net.minecraft.client.render.BufferBuilder
+import net.minecraft.client.render.Camera
+import net.minecraft.client.render.GameRenderer
+import net.minecraft.client.render.Tessellator
+import net.minecraft.client.render.VertexFormat
+import net.minecraft.client.render.VertexFormats
+import net.minecraft.client.util.math.MatrixStack
+import net.minecraft.util.math.BlockPos
+import net.minecraft.util.math.Vec3d
+
+class RenderBlockContext private constructor(private val tesselator: Tessellator, private val matrixStack: MatrixStack) {
+    private val buffer = tesselator.buffer
+    fun color(red: Float, green: Float, blue: Float, alpha: Float) {
+        RenderSystem.setShaderColor(red, green, blue, alpha)
+    }
+
+    fun block(blockPos: BlockPos) {
+        matrixStack.push()
+        matrixStack.translate(blockPos.x.toFloat(), blockPos.y.toFloat(), blockPos.z.toFloat())
+        buildCube(matrixStack.peek().positionMatrix, buffer)
+        tesselator.draw()
+        matrixStack.pop()
+    }
+
+    fun tinyBlock(vec3d: Vec3d, size: Float) {
+        matrixStack.push()
+        matrixStack.translate(vec3d.x, vec3d.y, vec3d.z)
+        matrixStack.scale(size, size, size)
+        matrixStack.translate(-.5, -.5, -.5)
+        buildCube(matrixStack.peek().positionMatrix, buffer)
+        tesselator.draw()
+        matrixStack.pop()
+    }
+
+    companion object {
+        private fun buildCube(matrix: Matrix4f, buf: BufferBuilder) {
+            buf.begin(VertexFormat.DrawMode.TRIANGLES, VertexFormats.POSITION_COLOR)
+            buf.fixedColor(255, 255, 255, 255)
+            buf.vertex(matrix, 0.0F, 0.0F, 0.0F).next()
+            buf.vertex(matrix, 0.0F, 0.0F, 1.0F).next()
+            buf.vertex(matrix, 0.0F, 1.0F, 1.0F).next()
+            buf.vertex(matrix, 1.0F, 1.0F, 0.0F).next()
+            buf.vertex(matrix, 0.0F, 0.0F, 0.0F).next()
+            buf.vertex(matrix, 0.0F, 1.0F, 0.0F).next()
+            buf.vertex(matrix, 1.0F, 0.0F, 1.0F).next()
+            buf.vertex(matrix, 0.0F, 0.0F, 0.0F).next()
+            buf.vertex(matrix, 1.0F, 0.0F, 0.0F).next()
+            buf.vertex(matrix, 1.0F, 1.0F, 0.0F).next()
+            buf.vertex(matrix, 1.0F, 0.0F, 0.0F).next()
+            buf.vertex(matrix, 0.0F, 0.0F, 0.0F).next()
+            buf.vertex(matrix, 0.0F, 0.0F, 0.0F).next()
+            buf.vertex(matrix, 0.0F, 1.0F, 1.0F).next()
+            buf.vertex(matrix, 0.0F, 1.0F, 0.0F).next()
+            buf.vertex(matrix, 1.0F, 0.0F, 1.0F).next()
+            buf.vertex(matrix, 0.0F, 0.0F, 1.0F).next()
+            buf.vertex(matrix, 0.0F, 0.0F, 0.0F).next()
+            buf.vertex(matrix, 0.0F, 1.0F, 1.0F).next()
+            buf.vertex(matrix, 0.0F, 0.0F, 1.0F).next()
+            buf.vertex(matrix, 1.0F, 0.0F, 1.0F).next()
+            buf.vertex(matrix, 1.0F, 1.0F, 1.0F).next()
+            buf.vertex(matrix, 1.0F, 0.0F, 0.0F).next()
+            buf.vertex(matrix, 1.0F, 1.0F, 0.0F).next()
+            buf.vertex(matrix, 1.0F, 0.0F, 0.0F).next()
+            buf.vertex(matrix, 1.0F, 1.0F, 1.0F).next()
+            buf.vertex(matrix, 1.0F, 0.0F, 1.0F).next()
+            buf.vertex(matrix, 1.0F, 1.0F, 1.0F).next()
+            buf.vertex(matrix, 1.0F, 1.0F, 0.0F).next()
+            buf.vertex(matrix, 0.0F, 1.0F, 0.0F).next()
+            buf.vertex(matrix, 1.0F, 1.0F, 1.0F).next()
+            buf.vertex(matrix, 0.0F, 1.0F, 0.0F).next()
+            buf.vertex(matrix, 0.0F, 1.0F, 1.0F).next()
+            buf.vertex(matrix, 1.0F, 1.0F, 1.0F).next()
+            buf.vertex(matrix, 0.0F, 1.0F, 1.0F).next()
+            buf.vertex(matrix, 1.0F, 0.0F, 1.0F).next()
+            buf.unfixColor()
+        }
+
+        fun renderBlocks(matrices: MatrixStack, camera: Camera, block: RenderBlockContext. () -> Unit) {
+            RenderSystem.disableDepthTest()
+            RenderSystem.enableBlend()
+            RenderSystem.defaultBlendFunc()
+            RenderSystem.setShader(GameRenderer::getPositionColorProgram)
+
+            matrices.push()
+            matrices.translate(-camera.pos.x, -camera.pos.y, -camera.pos.z)
+
+            val ctx = RenderBlockContext(Tessellator.getInstance(), matrices)
+            block(ctx)
+
+            matrices.pop()
+
+            RenderSystem.setShaderColor(1F,1F,1F,1F)
+            VertexBuffer.unbind()
+            RenderSystem.enableDepthTest()
+            RenderSystem.disableBlend()
+        }
+    }
+}
+
+