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https://github.com/4jcraft/4jcraft.git
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109 lines
3.7 KiB
C++
109 lines
3.7 KiB
C++
#include "../../Platform/stdafx.h"
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#include "ArrowRenderer.h"
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#include "../../../Minecraft.World/Headers/net.minecraft.world.entity.projectile.h"
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#include "../../../Minecraft.World/Util/Mth.h"
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ResourceLocation ArrowRenderer::ARROW_LOCATION =
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ResourceLocation(TN_ITEM_ARROWS);
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void ArrowRenderer::render(std::shared_ptr<Entity> _arrow, double x, double y,
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double z, float rot, float a) {
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// 4J - original version used generics and thus had an input parameter of
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// type Arrow rather than shared_ptr<Entity> we have here - do some casting
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// around instead
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std::shared_ptr<Arrow> arrow = std::dynamic_pointer_cast<Arrow>(_arrow);
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bindTexture(_arrow); // 4J - was L"/item/arrows.png"
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glPushMatrix();
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float yRot = arrow->yRot;
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float xRot = arrow->xRot;
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float yRotO = arrow->yRotO;
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float xRotO = arrow->xRotO;
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if ((yRot - yRotO) > 180.0f)
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yRot -= 360.0f;
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else if ((yRot - yRotO) < -180.0f)
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yRot += 360.0f;
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if ((xRot - xRotO) > 180.0f)
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xRot -= 360.0f;
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else if ((xRot - xRotO) < -180.0f)
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xRot += 360.0f;
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glTranslatef((float)x, (float)y, (float)z);
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glRotatef(yRotO + (yRot - yRotO) * a - 90, 0, 1, 0);
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glRotatef(xRotO + (xRot - xRotO) * a, 0, 0, 1);
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Tesselator* t = Tesselator::getInstance();
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int type = 0;
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float u0 = 0 / 32.0f;
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float u1 = 16 / 32.0f;
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float v0 = (0 + type * 10) / 32.0f;
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float v1 = (5 + type * 10) / 32.0f;
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float u02 = 0 / 32.0f;
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float u12 = 5 / 32.0f;
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float v02 = (5 + type * 10) / 32.0f;
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float v12 = (10 + type * 10) / 32.0f;
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float ss = 0.9f / 16.0f;
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glEnable(GL_RESCALE_NORMAL);
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float shake = arrow->shakeTime - a;
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if (shake > 0) {
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float pow = -Mth::sin(shake * 3) * shake;
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glRotatef(pow, 0, 0, 1);
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}
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glRotatef(45, 1, 0, 0);
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glScalef(ss, ss, ss);
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glTranslatef(-4, 0, 0);
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// glNormal3f(ss, 0, 0); // 4J - changed to use tesselator
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t->begin();
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t->normal(1, 0, 0);
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t->vertexUV((float)(-7), (float)(-2), (float)(-2), (float)(u02),
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(float)(v02));
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t->vertexUV((float)(-7), (float)(-2), (float)(+2), (float)(u12),
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(float)(v02));
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t->vertexUV((float)(-7), (float)(+2), (float)(+2), (float)(u12),
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(float)(v12));
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t->vertexUV((float)(-7), (float)(+2), (float)(-2), (float)(u02),
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(float)(v12));
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t->end();
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// glNormal3f(-ss, 0, 0); // 4J - changed to use tesselator
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t->begin();
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t->normal(-1, 0, 0);
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t->vertexUV((float)(-7), (float)(+2), (float)(-2), (float)(u02),
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(float)(v02));
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t->vertexUV((float)(-7), (float)(+2), (float)(+2), (float)(u12),
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(float)(v02));
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t->vertexUV((float)(-7), (float)(-2), (float)(+2), (float)(u12),
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(float)(v12));
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t->vertexUV((float)(-7), (float)(-2), (float)(-2), (float)(u02),
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(float)(v12));
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t->end();
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for (int i = 0; i < 4; i++) {
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glRotatef(90, 1, 0, 0);
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// glNormal3f(0, 0, ss); // 4J - changed to use
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// tesselator
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t->begin();
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t->normal(0, 0, 1);
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t->vertexUV((float)(-8), (float)(-2), (float)(0), (float)(u0),
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(float)(v0));
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t->vertexUV((float)(+8), (float)(-2), (float)(0), (float)(u1),
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(float)(v0));
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t->vertexUV((float)(+8), (float)(+2), (float)(0), (float)(u1),
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(float)(v1));
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t->vertexUV((float)(-8), (float)(+2), (float)(0), (float)(u0),
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(float)(v1));
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t->end();
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}
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glDisable(GL_RESCALE_NORMAL);
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glPopMatrix();
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}
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ResourceLocation* ArrowRenderer::getTextureLocation(
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std::shared_ptr<Entity> mob) {
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return &ARROW_LOCATION;
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} |