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First commit (very unfinished)

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milkwx3
2026-06-13 22:02:49 +03:00
commit c60f598661
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src/helpers/utils.cpp
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#include "raylib.h"
#include "math.h"
#include "raymath.h"
#include <stdint.h>
#include <stdbool.h>
#include "common.hpp"
#include <rlgl.h>
#include <iostream>
const char* Pathify(const char* src) {
static std::string s;
s = std::string(PATH_APPEND) + src;
return s.c_str();
}
const char* PathifyUser(const char* src) {
static std::string s;
s = std::string(PATH_APPEND_USER) + src;
return s.c_str();
}
#ifndef SERVER
void DrawCubeTexture(Texture2D texture, Vector3 position, float width, float height, float length, Color color, int offsetX, int offsetY, int sizeX, int sizeY)
{
float x = position.x;
float y = position.y;
float z = position.z;
float sidesModX = length / width;
float topBottomModY = height / width;
UVCorners front = GetUVTexFlipX(texture.width, texture.height, offsetX, offsetY, sizeX, sizeY * topBottomModY);
UVCorners back = GetUVTexFlipX(texture.width, texture.height, offsetX+sizeX+sizeX*sidesModX, offsetY, sizeX, sizeY * topBottomModY);
UVCorners top = GetUVTexFlipX(texture.width, texture.height, offsetX, offsetY-sizeY, sizeX, sizeY);
UVCorners bottom = GetUVTexFlipX(texture.width, texture.height, offsetX+sizeX, offsetY-sizeY, sizeX, sizeY);
UVCorners left = GetUVTexFlipX(texture.width, texture.height, offsetX-sizeX * sidesModX, offsetY, sizeX * sidesModX, sizeY * topBottomModY);
UVCorners right = GetUVTexFlipX(texture.width, texture.height, offsetX+sizeX * sidesModX, offsetY, sizeX * sidesModX, sizeY * topBottomModY);
// Set desired texture to be enabled while drawing following vertex data
rlSetTexture(texture.id);
// Vertex data transformation can be defined with the commented lines,
// but in this example we calculate the transformed vertex data directly when calling rlVertex3f()
//rlPushMatrix();
// NOTE: Transformation is applied in inverse order (scale -> rotate -> translate)
//rlTranslatef(2.0f, 0.0f, 0.0f);
//rlRotatef(45, 0, 1, 0);
//rlScalef(2.0f, 2.0f, 2.0f);
rlBegin(RL_QUADS);
rlColor4ub(color.r, color.g, color.b, color.a);
// Front Face
rlNormal3f(0.0f, 0.0f, 1.0f); // Normal Pointing Towards Viewer
rlTexCoord2f(front.corner0.x, front.corner0.y); rlVertex3f(x - width/2, y - height/2, z + length/2); // Bottom Left Of The Texture and Quad
rlTexCoord2f(front.corner1.x, front.corner1.y); rlVertex3f(x + width/2, y - height/2, z + length/2); // Bottom Right Of The Texture and Quad
rlTexCoord2f(front.corner2.x, front.corner2.y); rlVertex3f(x + width/2, y + height/2, z + length/2); // Top Right Of The Texture and Quad
rlTexCoord2f(front.corner3.x, front.corner3.y); rlVertex3f(x - width/2, y + height/2, z + length/2); // Top Left Of The Texture and Quad
// Back Face
rlNormal3f(0.0f, 0.0f, - 1.0f); // Normal Pointing Away From Viewer
rlTexCoord2f(back.corner1.x, back.corner1.y); rlVertex3f(x - width/2, y - height/2, z - length/2); // Bottom Right Of The Texture and Quad
rlTexCoord2f(back.corner2.x, back.corner2.y); rlVertex3f(x - width/2, y + height/2, z - length/2); // Top Right Of The Texture and Quad
rlTexCoord2f(back.corner3.x, back.corner3.y); rlVertex3f(x + width/2, y + height/2, z - length/2); // Top Left Of The Texture and Quad
rlTexCoord2f(back.corner0.x, back.corner0.y); rlVertex3f(x + width/2, y - height/2, z - length/2); // Bottom Left Of The Texture and Quad
// Top Face
rlNormal3f(0.0f, 1.0f, 0.0f); // Normal Pointing Up
rlTexCoord2f(top.corner3.x, top.corner3.y); rlVertex3f(x - width/2, y + height/2, z - length/2); // Top Left Of The Texture and Quad
rlTexCoord2f(top.corner0.x, top.corner0.y); rlVertex3f(x - width/2, y + height/2, z + length/2); // Bottom Left Of The Texture and Quad
rlTexCoord2f(top.corner1.x, top.corner1.y); rlVertex3f(x + width/2, y + height/2, z + length/2); // Bottom Right Of The Texture and Quad
rlTexCoord2f(top.corner2.x, top.corner2.y); rlVertex3f(x + width/2, y + height/2, z - length/2); // Top Right Of The Texture and Quad
// Bottom Face
rlNormal3f(0.0f, - 1.0f, 0.0f); // Normal Pointing Down
rlTexCoord2f(bottom.corner2.x, bottom.corner2.y); rlVertex3f(x - width/2, y - height/2, z - length/2); // Top Right Of The Texture and Quad
rlTexCoord2f(bottom.corner3.x, bottom.corner3.y); rlVertex3f(x + width/2, y - height/2, z - length/2); // Top Left Of The Texture and Quad
rlTexCoord2f(bottom.corner0.x, bottom.corner0.y); rlVertex3f(x + width/2, y - height/2, z + length/2); // Bottom Left Of The Texture and Quad
rlTexCoord2f(bottom.corner1.x, bottom.corner1.y); rlVertex3f(x - width/2, y - height/2, z + length/2); // Bottom Right Of The Texture and Quad
// Right face
rlNormal3f(1.0f, 0.0f, 0.0f); // Normal Pointing Right
rlTexCoord2f(right.corner1.x, right.corner1.y); rlVertex3f(x + width/2, y - height/2, z - length/2); // Bottom Right Of The Texture and Quad
rlTexCoord2f(right.corner2.x, right.corner2.y); rlVertex3f(x + width/2, y + height/2, z - length/2); // Top Right Of The Texture and Quad
rlTexCoord2f(right.corner3.x, right.corner3.y); rlVertex3f(x + width/2, y + height/2, z + length/2); // Top Left Of The Texture and Quad
rlTexCoord2f(right.corner0.x, right.corner0.y); rlVertex3f(x + width/2, y - height/2, z + length/2); // Bottom Left Of The Texture and Quad
// Left Face
rlNormal3f( - 1.0f, 0.0f, 0.0f); // Normal Pointing Left
rlTexCoord2f(left.corner0.x, left.corner0.y); rlVertex3f(x - width/2, y - height/2, z - length/2); // Bottom Left Of The Texture and Quad
rlTexCoord2f(left.corner1.x, left.corner1.y); rlVertex3f(x - width/2, y - height/2, z + length/2); // Bottom Right Of The Texture and Quad
rlTexCoord2f(left.corner2.x, left.corner2.y); rlVertex3f(x - width/2, y + height/2, z + length/2); // Top Right Of The Texture and Quad
rlTexCoord2f(left.corner3.x, left.corner3.y); rlVertex3f(x - width/2, y + height/2, z - length/2); // Top Left Of The Texture and Quad
rlEnd();
//rlPopMatrix();
rlSetTexture(0);
}
void DrawCubeBlock(Texture2D texture, Vector3 position, float width, float height, float length, BlockDef def)
{
float x = position.x;
float y = position.y;
float z = position.z;
float sidesModX = length / width;
float topBottomModY = height / width;
UVCorners front = GetUVTex(def.textureSide);
UVCorners back = GetUVTex(def.textureSide);
UVCorners top = GetUVTex(def.textureTop);
UVCorners bottom = GetUVTex(def.textureBottom);
UVCorners left = GetUVTex(def.textureSide);
UVCorners right = GetUVTex(def.textureSide);
rlSetTexture(texture.id);
rlBegin(RL_QUADS);
rlColor4ub(255, 255, 255, 255);
// Front Face
rlNormal3f(0.0f, 0.0f, 1.0f); // Normal Pointing Towards Viewer
rlTexCoord2f(front.corner0.x, front.corner0.y); rlVertex3f(x - width/2, y - height/2, z + length/2); // Bottom Left Of The Texture and Quad
rlTexCoord2f(front.corner1.x, front.corner1.y); rlVertex3f(x + width/2, y - height/2, z + length/2); // Bottom Right Of The Texture and Quad
rlTexCoord2f(front.corner2.x, front.corner2.y); rlVertex3f(x + width/2, y + height/2, z + length/2); // Top Right Of The Texture and Quad
rlTexCoord2f(front.corner3.x, front.corner3.y); rlVertex3f(x - width/2, y + height/2, z + length/2); // Top Left Of The Texture and Quad
// Back Face
rlNormal3f(0.0f, 0.0f, - 1.0f); // Normal Pointing Away From Viewer
rlTexCoord2f(back.corner1.x, back.corner1.y); rlVertex3f(x - width/2, y - height/2, z - length/2); // Bottom Right Of The Texture and Quad
rlTexCoord2f(back.corner2.x, back.corner2.y); rlVertex3f(x - width/2, y + height/2, z - length/2); // Top Right Of The Texture and Quad
rlTexCoord2f(back.corner3.x, back.corner3.y); rlVertex3f(x + width/2, y + height/2, z - length/2); // Top Left Of The Texture and Quad
rlTexCoord2f(back.corner0.x, back.corner0.y); rlVertex3f(x + width/2, y - height/2, z - length/2); // Bottom Left Of The Texture and Quad
// Top Face
rlNormal3f(0.0f, 1.0f, 0.0f); // Normal Pointing Up
rlTexCoord2f(top.corner3.x, top.corner3.y); rlVertex3f(x - width/2, y + height/2, z - length/2); // Top Left Of The Texture and Quad
rlTexCoord2f(top.corner0.x, top.corner0.y); rlVertex3f(x - width/2, y + height/2, z + length/2); // Bottom Left Of The Texture and Quad
rlTexCoord2f(top.corner1.x, top.corner1.y); rlVertex3f(x + width/2, y + height/2, z + length/2); // Bottom Right Of The Texture and Quad
rlTexCoord2f(top.corner2.x, top.corner2.y); rlVertex3f(x + width/2, y + height/2, z - length/2); // Top Right Of The Texture and Quad
// Bottom Face
rlNormal3f(0.0f, - 1.0f, 0.0f); // Normal Pointing Down
rlTexCoord2f(bottom.corner2.x, bottom.corner2.y); rlVertex3f(x - width/2, y - height/2, z - length/2); // Top Right Of The Texture and Quad
rlTexCoord2f(bottom.corner3.x, bottom.corner3.y); rlVertex3f(x + width/2, y - height/2, z - length/2); // Top Left Of The Texture and Quad
rlTexCoord2f(bottom.corner0.x, bottom.corner0.y); rlVertex3f(x + width/2, y - height/2, z + length/2); // Bottom Left Of The Texture and Quad
rlTexCoord2f(bottom.corner1.x, bottom.corner1.y); rlVertex3f(x - width/2, y - height/2, z + length/2); // Bottom Right Of The Texture and Quad
// Right face
rlNormal3f(1.0f, 0.0f, 0.0f); // Normal Pointing Right
rlTexCoord2f(right.corner1.x, right.corner1.y); rlVertex3f(x + width/2, y - height/2, z - length/2); // Bottom Right Of The Texture and Quad
rlTexCoord2f(right.corner2.x, right.corner2.y); rlVertex3f(x + width/2, y + height/2, z - length/2); // Top Right Of The Texture and Quad
rlTexCoord2f(right.corner3.x, right.corner3.y); rlVertex3f(x + width/2, y + height/2, z + length/2); // Top Left Of The Texture and Quad
rlTexCoord2f(right.corner0.x, right.corner0.y); rlVertex3f(x + width/2, y - height/2, z + length/2); // Bottom Left Of The Texture and Quad
// Left Face
rlNormal3f( - 1.0f, 0.0f, 0.0f); // Normal Pointing Left
rlTexCoord2f(left.corner0.x, left.corner0.y); rlVertex3f(x - width/2, y - height/2, z - length/2); // Bottom Left Of The Texture and Quad
rlTexCoord2f(left.corner1.x, left.corner1.y); rlVertex3f(x - width/2, y - height/2, z + length/2); // Bottom Right Of The Texture and Quad
rlTexCoord2f(left.corner2.x, left.corner2.y); rlVertex3f(x - width/2, y + height/2, z + length/2); // Top Right Of The Texture and Quad
rlTexCoord2f(left.corner3.x, left.corner3.y); rlVertex3f(x - width/2, y + height/2, z - length/2); // Top Left Of The Texture and Quad
rlEnd();
rlSetTexture(0);
}
#endif
#ifndef SERVER
void DrawTextCodepoint3D(Font font, int codepoint, Vector3 position, float fontSize, bool backface, Color tint)
{
// Character index position in sprite font
// NOTE: In case a codepoint is not available in the font, index returned points to '?'
int index = GetGlyphIndex(font, codepoint);
float scale = fontSize/(float)font.baseSize;
// Character destination rectangle on screen
// NOTE: We consider charsPadding on drawing
position.x += (float)(font.glyphs[index].offsetX - font.glyphPadding)*scale;
position.z += (float)(font.glyphs[index].offsetY - font.glyphPadding)*scale;
// Character source rectangle from font texture atlas
// NOTE: We consider chars padding when drawing, it could be required for outline/glow shader effects
Rectangle srcRec = { font.recs[index].x - (float)font.glyphPadding, font.recs[index].y - (float)font.glyphPadding,
font.recs[index].width + 2.0f*font.glyphPadding, font.recs[index].height + 2.0f*font.glyphPadding };
float width = (float)(font.recs[index].width + 2.0f*font.glyphPadding)*scale;
float height = (float)(font.recs[index].height + 2.0f*font.glyphPadding)*scale;
if (font.texture.id > 0)
{
const float x = 0.0f;
const float y = 0.0f;
const float z = 0.0f;
// normalized texture coordinates of the glyph inside the font texture (0.0f -> 1.0f)
const float tx = srcRec.x/font.texture.width;
const float ty = srcRec.y/font.texture.height;
const float tw = (srcRec.x+srcRec.width)/font.texture.width;
const float th = (srcRec.y+srcRec.height)/font.texture.height;
rlCheckRenderBatchLimit(4 + 4*backface);
rlSetTexture(font.texture.id);
rlPushMatrix();
rlTranslatef(position.x, position.y, position.z);
rlBegin(RL_QUADS);
rlColor4ub(tint.r, tint.g, tint.b, tint.a);
// Front Face
rlNormal3f(0.0f, 1.0f, 0.0f); // Normal Pointing Up
rlTexCoord2f(tx, ty); rlVertex3f(x, y, z); // Top Left Of The Texture and Quad
rlTexCoord2f(tx, th); rlVertex3f(x, y, z + height); // Bottom Left Of The Texture and Quad
rlTexCoord2f(tw, th); rlVertex3f(x + width, y, z + height); // Bottom Right Of The Texture and Quad
rlTexCoord2f(tw, ty); rlVertex3f(x + width, y, z); // Top Right Of The Texture and Quad
if (backface)
{
// Back Face
rlNormal3f(0.0f, -1.0f, 0.0f); // Normal Pointing Down
rlTexCoord2f(tx, ty); rlVertex3f(x, y, z); // Top Right Of The Texture and Quad
rlTexCoord2f(tw, ty); rlVertex3f(x + width, y, z); // Top Left Of The Texture and Quad
rlTexCoord2f(tw, th); rlVertex3f(x + width, y, z + height); // Bottom Left Of The Texture and Quad
rlTexCoord2f(tx, th); rlVertex3f(x, y, z + height); // Bottom Right Of The Texture and Quad
}
rlEnd();
rlPopMatrix();
rlSetTexture(0);
}
}
// Draw a 2D text in 3D space
void DrawText3D(Font font, const char *text, Vector3 position, float fontSize, float fontSpacing, float lineSpacing, bool backface, Color tint)
{
int length = TextLength(text); // Total length in bytes of the text, scanned by codepoints in loop
float textOffsetY = 0.0f; // Offset between lines (on line break '\n')
float textOffsetX = 0.0f; // Offset X to next character to draw
float scale = fontSize/(float)font.baseSize;
for (int i = 0; i < length;)
{
// Get next codepoint from byte string and glyph index in font
int codepointByteCount = 0;
int codepoint = GetCodepoint(&text[i], &codepointByteCount);
int index = GetGlyphIndex(font, codepoint);
// NOTE: Normally we exit the decoding sequence as soon as a bad byte is found (and return 0x3f)
// but we need to draw all of the bad bytes using the '?' symbol moving one byte
if (codepoint == 0x3f) codepointByteCount = 1;
if (codepoint == '\n')
{
// NOTE: Fixed line spacing of 1.5 line-height
// TODO: Support custom line spacing defined by user
textOffsetY += fontSize + lineSpacing;
textOffsetX = 0.0f;
}
else
{
if ((codepoint != ' ') && (codepoint != '\t'))
{
DrawTextCodepoint3D(font, codepoint, (Vector3){ position.x + textOffsetX, position.y, position.z + textOffsetY }, fontSize, backface, tint);
}
if (font.glyphs[index].advanceX == 0) textOffsetX += (float)font.recs[index].width*scale + fontSpacing;
else textOffsetX += (float)font.glyphs[index].advanceX*scale + fontSpacing;
}
i += codepointByteCount; // Move text bytes counter to next codepoint
}
}
#endif