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3d: small tweaks

isolation_bkp/dynres
Dominik Madarász 2021-08-11 21:02:03 +02:00
parent 3bdaa7a921
commit 49cd83fd6a
3 changed files with 180 additions and 3 deletions
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2
code/game/src/platform_raylib.c
View File

@ -18,7 +18,7 @@ static uint16_t screenHeight = 900;
static float target_zoom = 1.5f;
static bool request_shutdown;
#include "renderer_v0.c"
#include "renderer_3d.c"
void platform_init() {
InitWindow(screenWidth, screenHeight, "eco2d");

3
code/game/src/renderer_3d.c
View File

@ -88,7 +88,7 @@ void DEBUG_draw_entities_low(uint64_t key, entity_view * data) {
void renderer_draw(void) {
cam_zoom = zpl_lerp(cam_zoom, target_zoom, 0.18);
cam_zoom = zpl_min(zpl_lerp(cam_zoom, target_zoom, 0.18), 9.98f);
camera_update();
camera game_camera = camera_get();
@ -99,7 +99,6 @@ void renderer_draw(void) {
UpdateCamera(&render_camera);
#endif
ClearBackground(GetColor(0x222034));
BeginMode3D(render_camera);
game_world_view_active_entity_map(DEBUG_draw_ground);

178
code/game/src/utils/raylib_helpers.h
View File

@ -4,6 +4,7 @@
#include "world/blocks.h"
#include "assets.h"
#define RAYLIB_NEW_RLGL
#include "rlgl.h"
static inline
@ -150,3 +151,180 @@ void EcoDrawCube(Vector3 position, float width, float height, float length, floa
rlEnd();
rlPopMatrix();
}
// Draw codepoint at specified position in 3D space
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.chars[index].offsetX - font.charsPadding)/(float)font.baseSize*scale;
position.z += (float)(font.chars[index].offsetY - font.charsPadding)/(float)font.baseSize*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.charsPadding, font.recs[index].y - (float)font.charsPadding,
font.recs[index].width + 2.0f*font.charsPadding, font.recs[index].height + 2.0f*font.charsPadding };
float width = (float)(font.recs[index].width + 2.0f*font.charsPadding)/(float)font.baseSize*scale;
float height = (float)(font.recs[index].height + 2.0f*font.charsPadding)/(float)font.baseSize*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;
{
#if defined(RAYLIB_NEW_RLGL)
}
rlCheckRenderBatchLimit(4 + 4*backface);
rlSetTexture(font.texture.id);
#else
if (rlCheckBufferLimit(4 + 4*backface)) rlglDraw();
rlEnableTexture(font.texture.id);
#endif
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();
#if defined(RAYLIB_NEW_RLGL)
rlSetTexture(0);
#else
rlDisableTexture();
#endif
}
}
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 += scale + lineSpacing/(float)font.baseSize*scale;
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.chars[index].advanceX == 0) textOffsetX += (float)(font.recs[index].width + fontSpacing)/(float)font.baseSize*scale;
else textOffsetX += (float)(font.chars[index].advanceX + fontSpacing)/(float)font.baseSize*scale;
}
i += codepointByteCount; // Move text bytes counter to next codepoint
}
}
Vector3 MeasureText3D(Font font, const char* text, float fontSize, float fontSpacing, float lineSpacing) {
int len = TextLength(text);
int tempLen = 0; // Used to count longer text line num chars
int lenCounter = 0;
float tempTextWidth = 0.0f; // Used to count longer text line width
float scale = fontSize/(float)font.baseSize;
float textHeight = scale;
float textWidth = 0.0f;
int letter = 0; // Current character
int index = 0; // Index position in sprite font
for (int i = 0; i < len; i++)
{
lenCounter++;
int next = 0;
letter = GetCodepoint(&text[i], &next);
index = GetGlyphIndex(font, letter);
// 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 so to not skip any we set next = 1
if (letter == 0x3f) next = 1;
i += next - 1;
if (letter != '\n')
{
if (font.chars[index].advanceX != 0) textWidth += (font.chars[index].advanceX+fontSpacing)/(float)font.baseSize*scale;
else textWidth += (font.recs[index].width + font.chars[index].offsetX)/(float)font.baseSize*scale;
}
else
{
if (tempTextWidth < textWidth) tempTextWidth = textWidth;
lenCounter = 0;
textWidth = 0.0f;
textHeight += scale + lineSpacing/(float)font.baseSize*scale;
}
if (tempLen < lenCounter) tempLen = lenCounter;
}
if (tempTextWidth < textWidth) tempTextWidth = textWidth;
Vector3 vec = { 0 };
vec.x = tempTextWidth + (float)((tempLen - 1)*fontSpacing/(float)font.baseSize*scale); // Adds chars spacing to measure
vec.y = 0.25f;
vec.z = textHeight;
return vec;
}
Color GenerateRandomColor(float s, float v) {
const float Phi = 0.618033988749895f; // Golden ratio conjugate
float h = GetRandomValue(0, 360);
h = fmodf((h + h*Phi), 360.0f);
return ColorFromHSV(h, s, v);
}