TechReborn/src/main/java/techreborn/partSystem/client/PartPlacementRenderer.java

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2015-04-20 22:02:25 +02:00
package techreborn.partSystem.client;
import cpw.mods.fml.common.eventhandler.SubscribeEvent;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.ScaledResolution;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.client.shader.Framebuffer;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.util.MovingObjectPosition;
import net.minecraft.util.Vec3;
import net.minecraftforge.client.event.RenderWorldLastEvent;
import net.minecraftforge.common.util.ForgeDirection;
import org.lwjgl.opengl.GL11;
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import techreborn.lib.Location;
import techreborn.lib.vecmath.Vecs3d;
import techreborn.partSystem.IModPart;
import techreborn.partSystem.ModPartItem;
/**
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* This is based of
* https://github.com/Qmunity/QmunityLib/blob/master/src%2Fmain%
* 2Fjava%2Fuk%2Fco%2Fqmunity%2Flib%2Fclient%2Frender%2FRenderPartPlacement.java
* <p/>
* You should go check them out!
*/
@SideOnly(Side.CLIENT)
public class PartPlacementRenderer {
private Framebuffer fb = null;
private int width = 0, height = 0;
@SubscribeEvent
public void onRenderTick(RenderWorldLastEvent event) {
EntityPlayer player = Minecraft.getMinecraft().thePlayer;
ItemStack item = player.getCurrentEquippedItem();
if (item == null)
return;
if (!(item.getItem() instanceof ModPartItem))
return;
if (Minecraft.getMinecraft().gameSettings.hideGUI
&& Minecraft.getMinecraft().currentScreen == null)
return;
MovingObjectPosition mop = player.rayTrace(
player.capabilities.isCreativeMode ? 5 : 4, 0);
if (mop == null
|| mop.typeOfHit != MovingObjectPosition.MovingObjectType.BLOCK)
return;
IModPart part = ((ModPartItem) item.getItem()).getModPart();
if (part == null)
return;
ForgeDirection faceHit = ForgeDirection.getOrientation(mop.sideHit);
Location location = new Location(mop.blockX, mop.blockY, mop.blockZ);
if (fb == null || width != Minecraft.getMinecraft().displayWidth
|| height != Minecraft.getMinecraft().displayHeight) {
width = Minecraft.getMinecraft().displayWidth;
height = Minecraft.getMinecraft().displayHeight;
fb = new Framebuffer(width, height, true);
}
GL11.glPushMatrix();
{
Minecraft.getMinecraft().getFramebuffer().unbindFramebuffer();
GL11.glPushMatrix();
{
GL11.glLoadIdentity();
fb.bindFramebuffer(true);
GL11.glClear(GL11.GL_STENCIL_BUFFER_BIT
| GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
GL11.glMatrixMode(GL11.GL_MODELVIEW);
GL11.glLoadIdentity();
GL11.glClearColor(0, 0, 0, 0);
net.minecraft.client.renderer.RenderHelper
.enableStandardItemLighting();
GL11.glPushMatrix();
{
Vec3 playerPos = player.getPosition(event.partialTicks);
double x = location.getX() - playerPos.xCoord
+ faceHit.offsetX;
double y = location.getY() - playerPos.yCoord
+ faceHit.offsetY;
double z = location.getZ() - playerPos.zCoord
+ faceHit.offsetZ;
GL11.glRotated(player.rotationPitch, 1, 0, 0);
GL11.glRotated(player.rotationYaw - 180, 0, 1, 0);
GL11.glTranslated(x, y, z);
part.renderDynamic(new Vecs3d(0, 0, 0), event.partialTicks);
}
GL11.glPopMatrix();
net.minecraft.client.renderer.RenderHelper
.disableStandardItemLighting();
fb.unbindFramebuffer();
}
GL11.glPopMatrix();
Minecraft.getMinecraft().getFramebuffer().bindFramebuffer(true);
GL11.glPushMatrix();
{
Minecraft mc = Minecraft.getMinecraft();
ScaledResolution scaledresolution = new ScaledResolution(mc,
mc.displayWidth, mc.displayHeight);
GL11.glClear(GL11.GL_DEPTH_BUFFER_BIT);
GL11.glMatrixMode(GL11.GL_PROJECTION);
GL11.glLoadIdentity();
GL11.glOrtho(0, scaledresolution.getScaledWidth_double(),
scaledresolution.getScaledHeight_double(), 0, 0.1,
10000D);
GL11.glMatrixMode(GL11.GL_MODELVIEW);
GL11.glLoadIdentity();
GL11.glTranslatef(0.0F, 0.0F, -2000.0F);
fb.bindFramebufferTexture();
{
GL11.glDisable(GL11.GL_LIGHTING);
GL11.glEnable(GL11.GL_BLEND);
GL11.glBlendFunc(GL11.GL_SRC_ALPHA,
GL11.GL_ONE_MINUS_SRC_ALPHA);
Tessellator tessellator = Tessellator.instance;
int w = scaledresolution.getScaledWidth();
int h = scaledresolution.getScaledHeight();
tessellator.startDrawingQuads();
tessellator.setColorRGBA_F(1, 1, 1, 0.5F);
tessellator.addVertexWithUV(w, h, 0.0D, 1.0D, 0.0D);
tessellator.addVertexWithUV(w, 0, 0.0D, 1.0D, 1.0D);
tessellator.addVertexWithUV(0, 0, 0.0D, 0.0D, 1.0D);
tessellator.addVertexWithUV(0, h, 0.0D, 0.0D, 0.0D);
tessellator.draw();
GL11.glDisable(GL11.GL_BLEND);
GL11.glEnable(GL11.GL_LIGHTING);
}
fb.unbindFramebufferTexture();
GL11.glDisable(GL11.GL_BLEND);
}
GL11.glPopMatrix();
fb.framebufferClear();
Minecraft.getMinecraft().getFramebuffer().bindFramebuffer(true);
}
GL11.glPopMatrix();
}
}