vazkii.priscemagica.client.core.helper.RenderHelper.java Source code

Introduction

Here is the source code for vazkii.priscemagica.client.core.helper.RenderHelper.java

Source

/**
 * This class was created by <Vazkii>. It's distributed as
 * part of the PrisceMagica Mod.
 *
 * PrisceMagica is Open Source and distributed under a
 * Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License
 * (http://creativecommons.org/licenses/by-nc-sa/3.0/deed.en_GB)
 *
 * File Created @ [9 Aug 2013, 22:07:48 (GMT)]
 */
package vazkii.priscemagica.client.core.helper;

import java.util.List;

import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.FontRenderer;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.client.renderer.entity.RenderItem;
import net.minecraft.client.renderer.texture.TextureMap;
import net.minecraft.util.Icon;

import org.lwjgl.opengl.GL11;
import org.lwjgl.opengl.GL12;

import vazkii.priscemagica.api.ISpell;

public class RenderHelper {

    private static final RenderItem itemRenderer = new RenderItem();

    public static void renderSpell(int x, int y, ISpell spell) {
        Minecraft.getMinecraft().renderEngine.func_110577_a(TextureMap.field_110576_c);
        boolean lightingEnabled = GL11.glGetBoolean(GL11.GL_LIGHTING);

        if (lightingEnabled)
            net.minecraft.client.renderer.RenderHelper.disableStandardItemLighting();

        for (int i = 0; i < spell.getRequiredRenderPasses(); i++)
            renderIcon(x, y, spell.getIcon(i), spell.getColorForRenderPass(i));

        if (lightingEnabled)
            net.minecraft.client.renderer.RenderHelper.enableStandardItemLighting();
    }

    public static void renderIcon(int x, int y, Icon icon, int color) {
        GL11.glColor3ub((byte) ((color >> 16) & 255), (byte) ((color >> 8) & 255), (byte) (color & 255));
        itemRenderer.renderIcon(x, y, icon, 16, 16);
        GL11.glColor3f(1F, 1F, 1F);
    }

    public static void renderTooltip(int x, int y, List<String> tooltipData) {
        int color = 0x505000ff;
        int color2 = 0xf0100010;

        GL11.glDisable(GL12.GL_RESCALE_NORMAL);
        net.minecraft.client.renderer.RenderHelper.disableStandardItemLighting();
        GL11.glDisable(GL11.GL_LIGHTING);
        GL11.glDisable(GL11.GL_DEPTH_TEST);

        if (!tooltipData.isEmpty()) {
            int var5 = 0;
            int var6;
            int var7;
            FontRenderer fontRenderer = Minecraft.getMinecraft().fontRenderer;
            for (var6 = 0; var6 < tooltipData.size(); ++var6) {
                var7 = fontRenderer.getStringWidth(tooltipData.get(var6));
                if (var7 > var5)
                    var5 = var7;
            }
            var6 = x + 12;
            var7 = y - 12;
            int var9 = 8;
            if (tooltipData.size() > 1)
                var9 += 2 + (tooltipData.size() - 1) * 10;
            float z = 300.0F;
            drawGradientRect(var6 - 3, var7 - 4, z, var6 + var5 + 3, var7 - 3, color2, color2);
            drawGradientRect(var6 - 3, var7 + var9 + 3, z, var6 + var5 + 3, var7 + var9 + 4, color2, color2);
            drawGradientRect(var6 - 3, var7 - 3, z, var6 + var5 + 3, var7 + var9 + 3, color2, color2);
            drawGradientRect(var6 - 4, var7 - 3, z, var6 - 3, var7 + var9 + 3, color2, color2);
            drawGradientRect(var6 + var5 + 3, var7 - 3, z, var6 + var5 + 4, var7 + var9 + 3, color2, color2);
            int var12 = (color & 0xFFFFFF) >> 1 | color & -16777216;
            drawGradientRect(var6 - 3, var7 - 3 + 1, z, var6 - 3 + 1, var7 + var9 + 3 - 1, color, var12);
            drawGradientRect(var6 + var5 + 2, var7 - 3 + 1, z, var6 + var5 + 3, var7 + var9 + 3 - 1, color, var12);
            drawGradientRect(var6 - 3, var7 - 3, z, var6 + var5 + 3, var7 - 3 + 1, color, color);
            drawGradientRect(var6 - 3, var7 + var9 + 2, z, var6 + var5 + 3, var7 + var9 + 3, var12, var12);
            for (int var13 = 0; var13 < tooltipData.size(); ++var13) {
                String var14 = tooltipData.get(var13);
                fontRenderer.drawStringWithShadow(var14, var6, var7, -1);
                if (var13 == 0)
                    var7 += 2;
                var7 += 10;
            }
        }
    }

    public static void drawGradientRect(int par1, int par2, float z, int par3, int par4, int par5, int par6) {
        float var7 = (par5 >> 24 & 255) / 255.0F;
        float var8 = (par5 >> 16 & 255) / 255.0F;
        float var9 = (par5 >> 8 & 255) / 255.0F;
        float var10 = (par5 & 255) / 255.0F;
        float var11 = (par6 >> 24 & 255) / 255.0F;
        float var12 = (par6 >> 16 & 255) / 255.0F;
        float var13 = (par6 >> 8 & 255) / 255.0F;
        float var14 = (par6 & 255) / 255.0F;
        GL11.glDisable(GL11.GL_TEXTURE_2D);
        GL11.glEnable(GL11.GL_BLEND);
        GL11.glDisable(GL11.GL_ALPHA_TEST);
        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
        GL11.glShadeModel(GL11.GL_SMOOTH);
        Tessellator var15 = Tessellator.instance;
        var15.startDrawingQuads();
        var15.setColorRGBA_F(var8, var9, var10, var7);
        var15.addVertex(par3, par2, z);
        var15.addVertex(par1, par2, z);
        var15.setColorRGBA_F(var12, var13, var14, var11);
        var15.addVertex(par1, par4, z);
        var15.addVertex(par3, par4, z);
        var15.draw();
        GL11.glShadeModel(GL11.GL_FLAT);
        GL11.glDisable(GL11.GL_BLEND);
        GL11.glEnable(GL11.GL_ALPHA_TEST);
        GL11.glEnable(GL11.GL_TEXTURE_2D);
    }

}