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TinkersConstruct/src/main/java/tconstruct/client/FlexibleToolRenderer.java
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package tconstruct.client;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.entity.Entity;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.util.IIcon;
import net.minecraftforge.client.IItemRenderer;
import org.lwjgl.opengl.GL11;
import org.lwjgl.opengl.GL12;
import tconstruct.TConstruct;
import tconstruct.library.tools.ToolCore;
public class FlexibleToolRenderer implements IItemRenderer {
public float depth = 1 / 32f;
public void setDepth(float d) {
depth = d;
}
@Override
public boolean handleRenderType(ItemStack item, ItemRenderType type) {
if (!item.hasTagCompound()) return false;
switch (type) {
case ENTITY:
// GL11.glTranslatef(-0.0625F, -0.0625F, 0F);
return true;
case EQUIPPED:
// GL11.glTranslatef(0.03f, 0F, -0.09375F);
case EQUIPPED_FIRST_PERSON:
return true;
case INVENTORY:
return true;
default:
TConstruct.logger.warn("[TCon] Unhandled render case!");
case FIRST_PERSON_MAP:
return false;
}
}
@Override
public boolean shouldUseRenderHelper(ItemRenderType type, ItemStack item, ItemRendererHelper helper) {
return handleRenderType(item, type) & helper.ordinal() < ItemRendererHelper.EQUIPPED_BLOCK.ordinal();
}
private static final int toolIcons = 10;
protected void specialAnimation(ItemRenderType type, ItemStack item) {}
@Override
public void renderItem(ItemRenderType type, ItemStack item, Object... data) {
if (item == null || item.getItem() == null || !(item.getItem() instanceof ToolCore)) return;
Entity ent = null;
if (data.length > 1) ent = (Entity) data[1];
IIcon[] parts = new IIcon[toolIcons];
int iconParts = getIcons(item, type, ent, parts);
// drawing the inventory is a simple procedure
if (type == ItemRenderType.INVENTORY) {
renderInventory(iconParts, parts, item);
return;
}
Tessellator tess = Tessellator.instance;
float[] xMax = new float[iconParts];
float[] yMin = new float[iconParts];
float[] xMin = new float[iconParts];
float[] yMax = new float[iconParts];
float[] width = new float[iconParts];
float[] height = new float[iconParts];
float[] xDiff = new float[iconParts];
float[] yDiff = new float[iconParts];
float[] xSub = new float[iconParts];
float[] ySub = new float[iconParts];
for (int i = 0; i < iconParts; ++i) {
IIcon icon = parts[i];
xMin[i] = icon.getMinU();
xMax[i] = icon.getMaxU();
yMin[i] = icon.getMinV();
yMax[i] = icon.getMaxV();
width[i] = icon.getIconWidth();
height[i] = icon.getIconHeight();
xDiff[i] = xMin[i] - xMax[i];
yDiff[i] = yMin[i] - yMax[i];
xSub[i] = 0.5f * (xMax[i] - xMin[i]) / width[i];
ySub[i] = 0.5f * (yMax[i] - yMin[i]) / height[i];
}
GL11.glPushMatrix();
GL11.glEnable(GL12.GL_RESCALE_NORMAL);
if (type != ItemRenderType.ENTITY) {
specialAnimation(type, item);
} else GL11.glTranslatef(-0.5f, -0.25f, 0); // why? because.. minecraft.
// prepare colors
int[] color = new int[iconParts];
for (int i = 0; i < iconParts; i++) color[i] = item.getItem().getColorFromItemStack(item, i);
// one side
tess.startDrawingQuads();
tess.setNormal(0, 0, 1);
for (int i = 0; i < iconParts; ++i) {
tess.setColorOpaque_I(color[i]);
tess.addVertexWithUV(0, 0, +depth, xMax[i], yMax[i]);
tess.addVertexWithUV(1, 0, +depth, xMin[i], yMax[i]);
tess.addVertexWithUV(1, 1, +depth, xMin[i], yMin[i]);
tess.addVertexWithUV(0, 1, +depth, xMax[i], yMin[i]);
}
tess.draw();
// other side
tess.startDrawingQuads();
tess.setNormal(0, 0, -1);
for (int i = 0; i < iconParts; ++i) {
tess.setColorOpaque_I(color[i]);
tess.addVertexWithUV(0, 1, -depth, xMax[i], yMin[i]);
tess.addVertexWithUV(1, 1, -depth, xMin[i], yMin[i]);
tess.addVertexWithUV(1, 0, -depth, xMin[i], yMax[i]);
tess.addVertexWithUV(0, 0, -depth, xMax[i], yMax[i]);
}
tess.draw();
// make it have "depth"
tess.startDrawingQuads();
tess.setNormal(-1, 0, 0);
float pos;
float iconPos;
for (int i = 0; i < iconParts; ++i) {
tess.setColorOpaque_I(color[i]);
float w = width[i], m = xMax[i], d = xDiff[i], s = xSub[i];
for (int k = 0, e = (int) w; k < e; ++k) {
pos = k / w;
iconPos = m + d * pos - s;
tess.addVertexWithUV(pos, 0, -depth, iconPos, yMax[i]);
tess.addVertexWithUV(pos, 0, +depth, iconPos, yMax[i]);
tess.addVertexWithUV(pos, 1, +depth, iconPos, yMin[i]);
tess.addVertexWithUV(pos, 1, -depth, iconPos, yMin[i]);
}
}
tess.draw();
tess.startDrawingQuads();
tess.setNormal(1, 0, 0);
float posEnd;
for (int i = 0; i < iconParts; ++i) {
tess.setColorOpaque_I(color[i]);
float w = width[i], m = xMax[i], d = xDiff[i], s = xSub[i];
float d2 = 1f / w;
for (int k = 0, e = (int) w; k < e; ++k) {
pos = k / w;
iconPos = m + d * pos - s;
posEnd = pos + d2;
tess.addVertexWithUV(posEnd, 1, -depth, iconPos, yMin[i]);
tess.addVertexWithUV(posEnd, 1, +depth, iconPos, yMin[i]);
tess.addVertexWithUV(posEnd, 0, +depth, iconPos, yMax[i]);
tess.addVertexWithUV(posEnd, 0, -depth, iconPos, yMax[i]);
}
}
tess.draw();
tess.startDrawingQuads();
tess.setNormal(0, 1, 0);
for (int i = 0; i < iconParts; ++i) {
tess.setColorOpaque_I(color[i]);
float h = height[i], m = yMax[i], d = yDiff[i], s = ySub[i];
float d2 = 1f / h;
for (int k = 0, e = (int) h; k < e; ++k) {
pos = k / h;
iconPos = m + d * pos - s;
posEnd = pos + d2;
tess.addVertexWithUV(0, posEnd, +depth, xMax[i], iconPos);
tess.addVertexWithUV(1, posEnd, +depth, xMin[i], iconPos);
tess.addVertexWithUV(1, posEnd, -depth, xMin[i], iconPos);
tess.addVertexWithUV(0, posEnd, -depth, xMax[i], iconPos);
}
}
tess.draw();
tess.startDrawingQuads();
tess.setNormal(0, -1, 0);
for (int i = 0; i < iconParts; ++i) {
tess.setColorOpaque_I(color[i]);
float h = height[i], m = yMax[i], d = yDiff[i], s = ySub[i];
for (int k = 0, e = (int) h; k < e; ++k) {
pos = k / h;
iconPos = m + d * pos - s;
tess.addVertexWithUV(1, pos, +depth, xMin[i], iconPos);
tess.addVertexWithUV(0, pos, +depth, xMax[i], iconPos);
tess.addVertexWithUV(0, pos, -depth, xMax[i], iconPos);
tess.addVertexWithUV(1, pos, -depth, xMin[i], iconPos);
}
}
tess.draw();
GL11.glDisable(GL12.GL_RESCALE_NORMAL);
GL11.glPopMatrix();
}
public void renderInventory(int count, IIcon[] icons, ItemStack item) {
Tessellator tess = Tessellator.instance;
GL11.glPushMatrix();
GL11.glDisable(GL11.GL_LIGHTING);
GL11.glEnable(GL11.GL_ALPHA_TEST);
GL11.glAlphaFunc(GL11.GL_GREATER, 0.5F);
// GL11.glDisable(GL11.GL_BLEND);
tess.startDrawingQuads();
// draw a simple rectangle for the inventory icon
for (int i = 0; i < count; ++i) {
tess.setColorOpaque_I(item.getItem().getColorFromItemStack(item, i));
final IIcon icon = icons[i];
final float xmin = icon.getMinU();
final float xmax = icon.getMaxU();
final float ymin = icon.getMinV();
final float ymax = icon.getMaxV();
tess.addVertexWithUV(0, 16, 0, xmin, ymax);
tess.addVertexWithUV(16, 16, 0, xmax, ymax);
tess.addVertexWithUV(16, 0, 0, xmax, ymin);
tess.addVertexWithUV(0, 0, 0, xmin, ymin);
}
tess.draw();
// GL11.glEnable(GL11.GL_BLEND);
GL11.glDisable(GL11.GL_ALPHA_TEST);
GL11.glAlphaFunc(GL11.GL_GREATER, 0.1F);
GL11.glEnable(GL11.GL_LIGHTING);
GL11.glPopMatrix();
}
public int getIcons(ItemStack item, ItemRenderType type, Entity ent, IIcon[] parts) {
int iconParts = toolIcons; // tool.getRenderPasses(item.getItemDamage());
// TODO: have the tools define how many render passes they have
// (requires more logic rewrite than it sounds like)
boolean isInventory = type == ItemRenderType.INVENTORY;
ToolCore tool = (ToolCore) item.getItem();
IIcon[] tempParts = new IIcon[iconParts];
label: {
if (!isInventory && ent instanceof EntityPlayer) {
EntityPlayer player = (EntityPlayer) ent;
ItemStack itemInUse = player.getItemInUse();
if (itemInUse != null) {
int useCount = player.getItemInUseCount();
for (int i = iconParts; i-- > 0;) tempParts[i] = tool.getIcon(item, i, player, itemInUse, useCount);
break label;
}
}
for (int i = iconParts; i-- > 0;) tempParts[i] = tool.getIcon(item, i);
}
int count = 0;
for (int i = 0; i < iconParts; ++i) {
IIcon part = tempParts[i];
if (part == null || part == ToolCore.blankSprite || part == ToolCore.emptyIcon) ++count;
else parts[i - count] = part;
}
iconParts -= count;
if (iconParts <= 0) {
iconParts = 1;
parts[0] = ToolCore.blankSprite;
}
return iconParts;
}
}
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