nishi/nishbox
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NishiOwO 2025-03-31 01:39:51 +09:00
parent c15e22d63d
commit 9dd8d426bd
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5 changed files with 44 additions and 8 deletions
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2
engine/Makefile
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@ -1,5 +1,5 @@
TARGET = libnishbox.a
OBJS = version.o core.o draw.o log.o $(BACKEND)_draw.o font.o stb_image.o
OBJS = version.o core.o draw.o log.o $(BACKEND)_draw.o font.o stb_image.o math.o
include ../common.mk

16
engine/draw.c
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@ -15,6 +15,7 @@
#include "nb_log.h"
#include "nb_draw_platform.h"
#include "nb_font.h"
#include "nb_math.h"
/* Standard */
#include <stdlib.h>
@ -56,19 +57,20 @@ void nb_draw_init_opengl(nb_draw_t* draw) {
glEnable(GL_COLOR_MATERIAL);
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glCullFace(GL_BACK);
glLightfv(GL_LIGHT0, GL_AMBIENT, lightdim);
glLightfv(GL_LIGHT0, GL_DIFFUSE, lightwht);
glLightfv(GL_LIGHT0, GL_SPECULAR, lightblk);
glShadeModel(GL_FLAT);
glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE);
glLoadIdentity();
glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, lightwht);
glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 0.1f);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBlendFunc(GL_ONE, GL_ONE);
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
for(i = 0; i < sizeof(nb_font) / sizeof(nb_font[0]); i++) {
unsigned char* font = malloc(8 * 8 * 4);
@ -147,7 +149,7 @@ void nb_draw_end_2d(nb_draw_t* draw) {
double i = 0;
#define NEAREST_POW2(x) pow((2), log((int)(x) + 1) / log(2))
#define NEAREST_POW2(x) pow((2), nb_log2((int)(x) + 1))
void nb_draw_frame(nb_draw_t* draw) {
double size = 10;
@ -155,7 +157,7 @@ void nb_draw_frame(nb_draw_t* draw) {
glLoadIdentity();
gluLookAt(draw->camera[0], draw->camera[1], draw->camera[2], draw->lookat[0], draw->lookat[1], draw->lookat[2], 0, 1, 0);
glRotatef(i, 0, 1, 0);
glLightfv(GL_LIGHT0, GL_POSITION, draw->light);
glPushMatrix();
glEnable(GL_TEXTURE_2D);

13
engine/math.c Normal file
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@ -0,0 +1,13 @@
#include "nb_pre.h"
/* External library */
/* Interface */
#include "nb_math.h"
/* NishBox */
/* Standard */
#include <math.h>
float nb_log2(float x) { return log(x) / log(2); }

6
engine/nb_draw.h
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@ -15,10 +15,16 @@
/* Standard */
#ifdef NB_EXPORT_DRAW
typedef struct nb_shape {
int points;
GLfloat points[4][3];
} nb_shape_t;
typedef struct nb_mesh {
nb_shape_t* shapes;
} nb_mesh_t;
#else
typedef void nb_mesh_t;
typedef void nb_shape_t;
#endif
nb_draw_t* nb_draw_create(void);

15
engine/nb_math.h Normal file
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@ -0,0 +1,15 @@
#ifndef __NB_MATH_H__
#define __NB_MATH_H__
#include <nb_pre.h>
#include <nb_macro.h>
/* External library */
/* NishBox */
/* Standard */
float nb_log2(float x);
#endif