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main_linux_randomtypes.c
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main_linux_randomtypes.c
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/*
James William Fletcher (github.com/mrbid)
December 2021
Info:
Space Miner, a simple 3D space mining game.
Keyboard:
F = FPS to console
P = Player stats to console
N = New Game
Q = Break Asteroid
E = Stop all nearby Asteroids
R = Repel all nearby Asteroids
W = Thrust Forward
A = Turn Left
S = Thrust Backward
D = Turn Right
Shift = Thrust Down
Space = Thrust Up
Mouse:
Left Click = Break Asteroid
Right Click = Repel Asteroid
Mouse 4 Click = Stop all Asteroids nearby
Scroll = Zoom in/out
Notes:
Frustum Culling:
In a game like this by introducing frustum culling all you are doing is introducing
frame rate instability, the fewer asteroids on-screen with frustum culling the more frames
per second the game will get, and vice-versa. But in a game like this, you could get all
asteroids in the frame at once, or even just very varied amounts. Frame rate instability is
always worse than having a stable, but lower, frame rate.
I've never been a great fan of frustum culling, mainly because it only makes sense in a
very niche avenue of 3D games, albeit the most popular niche, FPS games.
The popularity of First-Person can hamper creativity, other 3D camera systems are rarely
ever explored and partly this is due to there only being four main 3D camera systems;
Fixed Camera, Ghost/Chase Camera, Orbit Camera, and First Person Camera.
*/
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <sys/time.h>
// sRandFloat()
#include <unistd.h>
#include <fcntl.h>
#define uint GLushort
#define sint GLshort
#define f32 GLfloat
#include "gl.h"
#define GLFW_INCLUDE_NONE
#include "glfw3.h"
#ifndef __x86_64__
#define NOSSE
#endif
// RandomType: sRandFloat esRandFloat fRandFloat
// sRandFloat - Slow & Cryptographically secure randoms.
// esRandFloat - regular stdlib rand() function
// fRandFloat - fast random from vec.h (SEIR RAND / MMX RAND)
#define uRandFloat esRandFloat
// uncommenting this define will enable the MMX random when using fRandFloat (it's a marginally slower)
#define SEIR_RAND
#include "esAux2.h"
#include "res.h"
#include "assets/rock1.h"
#include "assets/rock2.h"
#include "assets/rock3.h"
#include "assets/rock4.h"
#include "assets/rock5.h"
#include "assets/rock6.h"
#include "assets/rock7.h"
#include "assets/rock8.h"
#include "assets/rock9.h"
#include "assets/face.h"
#include "assets/body.h"
#include "assets/arms.h"
#include "assets/left_flame.h"
#include "assets/right_flame.h"
#include "assets/legs.h"
#include "assets/fuel.h"
#include "assets/shield.h"
#include "assets/pbreak.h"
#include "assets/pshield.h"
#include "assets/pslow.h"
#include "assets/prepel.h"
//*************************************
// globals
//*************************************
GLFWwindow* window;
uint winw = 1024;
uint winh = 768;
double t = 0; // time
double dt = 0; // delta time
double fc = 0; // frame count
double lfct = 0;// last frame count time
f32 aspect;
double x,y,lx,ly;
double rww, ww, rwh, wh, ww2, wh2;
double uw, uh, uw2, uh2; // normalised pixel dpi
// render state id's
GLint projection_id;
GLint modelview_id;
GLint position_id;
GLint lightpos_id;
GLint solidcolor_id;
GLint color_id;
GLint opacity_id;
GLint normal_id;
// render state matrices
mat projection;
mat view;
mat model;
mat modelview;
// render state inputs
vec lightpos = {0.f, 0.f, 0.f};
// models
sint bindstate = -1;
sint bindstate2 = -1;
uint keystate[6] = {0};
ESModel mdlRock[9];
ESModel mdlFace;
ESModel mdlBody;
ESModel mdlArms;
ESModel mdlLeftFlame;
ESModel mdlRightFlame;
ESModel mdlLegs;
ESModel mdlFuel;
ESModel mdlShield;
ESModel mdlPbreak;
ESModel mdlPshield;
ESModel mdlPslow;
ESModel mdlPrepel;
// game vars
#define NEWGAME_SEED 1337
#define THRUST_POWER 0.03f
#define NECK_ANGLE 0.6f
#define ROCK_DARKNESS 0.412f
#define MAX_ROCK_SCALE 12.f
const f32 RECIP_MAX_ROCK_SCALE = 1.f/(MAX_ROCK_SCALE+10.f);
#define FUEL_DRAIN_RATE 0.01f
#define SHIELD_DRAIN_RATE 0.06f
#define REFINARY_YEILD 0.13f
#ifdef __arm__
#define ARRAY_MAX 2048 // 8 Megabytes of Asteroids
const f32 FAR_DISTANCE = (float)ARRAY_MAX / 4.f;
#else
#define ARRAY_MAX 16384 // 64 Megabytes of Asteroids
f32 FAR_DISTANCE = (float)ARRAY_MAX / 8.f;
#endif
typedef struct
{
// since we have the room
int free; // fast free checking
int nores;// no mineral resources
// rock vars
f32 scale;
vec pos;
vec vel;
// +6 bytes
uint rnd;
f32 rndf;
// rock colour array
f32 colors[720];
// mineral amounts
f32 qshield;
f32 qbreak;
f32 qslow;
f32 qrepel;
f32 qfuel;
} gi; // 4+4+4+16+16+2+4+2880+4+4+4+4+4 = 2950 bytes = 4096 padded (4 kilobyte)
gi array_rocks[ARRAY_MAX] = {0};
// gets a free/unused rock
/*
// the original idea was to dynamically pop out ores when rocks are mined
// which then you need to manually float to and collect but, I went off the idea.
sint freeRock()
{
for(sint i = 0; i < ARRAY_MAX; i++)
if(array_rocks[i].free == 1)
return i;
return -1;
}
*/
// camera vars
uint focus_cursor = 1;
double sens = 0.001f;
f32 xrot = 0.f;
f32 yrot = 0.f;
f32 zoom = -25.f;
// player vars
f32 so; // shield on (closest distance)
uint ct;// thrust signal
f32 pr; // rotation
vec pp; // position
vec pv; // velocity
vec pd; // thust direction
f32 lgr = 0.f; // last good head rotation
vec pld;// look direction
vec pfd;// face direction
f32 pf; // fuel
f32 pb; // break
f32 ps; // shield
f32 psp;// speed
f32 psl;// slow
f32 pre;// repel
uint lf;// last fuel
uint pm;// mined asteroid count
double st=0; // start time
char tts[32];// time taken string
//*************************************
// utility functions
//*************************************
void timestamp(char* ts)
{
const time_t tt = time(0);
strftime(ts, 16, "%H:%M:%S", localtime(&tt));
}
uint64_t microtime()
{
struct timeval tv;
struct timezone tz;
memset(&tz, 0, sizeof(struct timezone));
gettimeofday(&tv, &tz);
return 1000000 * tv.tv_sec + tv.tv_usec;
}
float sRandFloat(const float min, const float max)
{
int f = open("/dev/urandom", O_RDONLY | O_CLOEXEC);
uint64_t s = 0;
ssize_t result = read(f, &s, sizeof(uint64_t));
close(f);
return ( ( (((float)s)+1e-7f) / (float)UINT64_MAX ) * (max-min) ) + min;
}
static inline float fRandFloat(const float min, const float max)
{
return min + randf() * (max-min);
}
static inline f32 fzero(f32 f)
{
if(f < 0.f){f = 0.f;}
return f;
}
static inline f32 fone(f32 f)
{
if(f > 1.f){f = 1.f;}
return f;
}
static inline f32 fsat(f32 f)
{
if(f < 0.f){f = 0.f;}
if(f > 1.f){f = 1.f;}
return f;
}
void timeTaken(uint ss)
{
if(ss == 1)
{
const double tt = t-st;
if(tt < 60.0)
sprintf(tts, "%.2f Sec", tt);
else if(tt < 3600.0)
sprintf(tts, "%.2f Min", tt * 0.016666667);
else if(tt < 216000.0)
sprintf(tts, "%.2f Hr", tt * 0.000277778);
else if(tt < 12960000.0)
sprintf(tts, "%.2f Days", tt * 0.00000463);
}
else
{
const double tt = t-st;
if(tt < 60.0)
sprintf(tts, "%.2f Seconds", tt);
else if(tt < 3600.0)
sprintf(tts, "%.2f Minutes", tt * 0.016666667);
else if(tt < 216000.0)
sprintf(tts, "%.2f Hours", tt * 0.000277778);
else if(tt < 12960000.0)
sprintf(tts, "%.2f Days", tt * 0.00000463);
}
}
//*************************************
// render functions
//*************************************
void rRock(uint i, f32 dist)
{
static const uint rcs = ARRAY_MAX / 9;
static const f32 rrcs = 1.f / (f32)rcs;
mIdent(&model);
mTranslate(&model, array_rocks[i].pos.x, array_rocks[i].pos.y, array_rocks[i].pos.z);
if(array_rocks[i].rnd < 500)
{
f32 mag = vMag(array_rocks[i].vel)*array_rocks[i].rndf*t;
if(array_rocks[i].rnd < 100)
mRotY(&model, mag);
if(array_rocks[i].rnd < 200)
mRotZ(&model, mag);
if(array_rocks[i].rnd < 300)
mRotX(&model, mag);
}
if(array_rocks[i].free == 2)
{
array_rocks[i].scale -= 32.f*dt;
if(array_rocks[i].scale <= 0.f)
array_rocks[i].free = 1;
mScale(&model, array_rocks[i].scale, array_rocks[i].scale, array_rocks[i].scale);
}
else
mScale(&model, array_rocks[i].scale, array_rocks[i].scale, array_rocks[i].scale);
mMul(&modelview, &model, &view);
glUniformMatrix4fv(modelview_id, 1, GL_FALSE, (f32*) &modelview.m[0][0]);
glUniform1f(opacity_id, 1.0f);
// unique colour arrays for each rock within visible distance
if(array_rocks[i].nores == 0 && dist < 333.f)
{
esRebind(GL_ARRAY_BUFFER, &mdlRock[0].cid, array_rocks[i].colors, sizeof(rock1_colors), GL_STATIC_DRAW);
glVertexAttribPointer(color_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(color_id);
bindstate2 = 0;
}
else
{
if(bindstate2 != 1)
{
glBindBuffer(GL_ARRAY_BUFFER, mdlRock[1].cid);
glVertexAttribPointer(color_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(color_id);
bindstate2 = 1;
}
}
// this is a super efficient way to render 9 different types of asteroid
uint nbs = i * rrcs;
if(nbs > 8){nbs = 8;}
if(nbs != bindstate)
{
glBindBuffer(GL_ARRAY_BUFFER, mdlRock[nbs].vid);
glVertexAttribPointer(position_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(position_id);
glBindBuffer(GL_ARRAY_BUFFER, mdlRock[nbs].nid);
glVertexAttribPointer(normal_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(normal_id);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mdlRock[nbs].iid);
bindstate = nbs;
}
glDrawElements(GL_TRIANGLES, rock1_numind, GL_UNSIGNED_SHORT, 0);
}
void rLegs(f32 x, f32 y, f32 z, f32 rx)
{
bindstate = -1;
mIdent(&model);
mTranslate(&model, x, y, z);
mRotX(&model, -rx);
f32 mag = psp*32.f;
if(mag > 0.4f)
mag = 0.4f;
mRotY(&model, mag);
mMul(&modelview, &model, &view);
glUniformMatrix4fv(modelview_id, 1, GL_FALSE, (f32*) &modelview.m[0][0]);
glUniform1f(opacity_id, 1.0f);
glUniform3f(color_id, 1.f, 1.f, 1.f);
glBindBuffer(GL_ARRAY_BUFFER, mdlLegs.vid);
glVertexAttribPointer(position_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(position_id);
glBindBuffer(GL_ARRAY_BUFFER, mdlLegs.nid);
glVertexAttribPointer(normal_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(normal_id);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mdlLegs.iid);
glDrawElements(GL_TRIANGLES, legs_numind, GL_UNSIGNED_SHORT, 0);
}
void rBody(f32 x, f32 y, f32 z, f32 rx)
{
bindstate = -1;
mIdent(&model);
mTranslate(&model, x, y, z);
mRotX(&model, -rx);
// returns new player direction
mGetDirZ(&pld, model);
vInv(&pld);
if(ct > 0)
{
mGetDirZ(&pd, model);
vInv(&pd);
ct = 0;
}
mMul(&modelview, &model, &view);
glUniformMatrix4fv(modelview_id, 1, GL_FALSE, (f32*) &modelview.m[0][0]);
glUniform1f(opacity_id, 1.0f);
glUniform3f(color_id, 1.f, 1.f, 1.f);
glBindBuffer(GL_ARRAY_BUFFER, mdlBody.vid);
glVertexAttribPointer(position_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(position_id);
glBindBuffer(GL_ARRAY_BUFFER, mdlBody.nid);
glVertexAttribPointer(normal_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(normal_id);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mdlBody.iid);
glDrawElements(GL_TRIANGLES, body_numind, GL_UNSIGNED_SHORT, 0);
}
void rFuel(f32 x, f32 y, f32 z, f32 rx)
{
bindstate = -1;
mIdent(&model);
mTranslate(&model, x, y, z);
mRotX(&model, -rx);
mMul(&modelview, &model, &view);
glUniformMatrix4fv(modelview_id, 1, GL_FALSE, (f32*) &modelview.m[0][0]);
glUniform1f(opacity_id, 1.0f);
glUniform3f(color_id, fone(0.062f+(1.f-pf)), fone(1.f+(1.f-pf)), fone(0.873f+(1.f-pf)));
glBindBuffer(GL_ARRAY_BUFFER, mdlFuel.vid);
glVertexAttribPointer(position_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(position_id);
glBindBuffer(GL_ARRAY_BUFFER, mdlFuel.nid);
glVertexAttribPointer(normal_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(normal_id);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mdlFuel.iid);
glDrawElements(GL_TRIANGLES, fuel_numind, GL_UNSIGNED_SHORT, 0);
}
void rArms(f32 x, f32 y, f32 z, f32 rx)
{
bindstate = -1;
mIdent(&model);
mTranslate(&model, x, y, z);
mRotX(&model, -rx);
f32 mag = psp*32.f;
if(mag > 0.4f)
mag = 0.4f;
mRotY(&model, mag);
mMul(&modelview, &model, &view);
glUniformMatrix4fv(modelview_id, 1, GL_FALSE, (f32*) &modelview.m[0][0]);
glUniform1f(opacity_id, 1.0f);
glUniform3f(color_id, 1.f, 1.f, 1.f);
glBindBuffer(GL_ARRAY_BUFFER, mdlArms.vid);
glVertexAttribPointer(position_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(position_id);
glBindBuffer(GL_ARRAY_BUFFER, mdlArms.nid);
glVertexAttribPointer(normal_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(normal_id);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mdlArms.iid);
glDrawElements(GL_TRIANGLES, arms_numind, GL_UNSIGNED_SHORT, 0);
}
void rLeftFlame(f32 x, f32 y, f32 z, f32 rx)
{
bindstate = -1;
mIdent(&model);
mTranslate(&model, x, y, z);
mRotX(&model, -rx);
f32 mag = psp*32.f;
if(mag > 0.4f)
mag = 0.4f;
mRotY(&model, mag);
mMul(&modelview, &model, &view);
glUniformMatrix4fv(modelview_id, 1, GL_FALSE, (f32*) &modelview.m[0][0]);
glUniform1f(opacity_id, 1.0f);
//glUniform3f(color_id, 1.f, 0.f, 0.f);
glUniform3f(color_id, 0.062f, 1.f, 0.873f);
glBindBuffer(GL_ARRAY_BUFFER, mdlLeftFlame.vid);
glVertexAttribPointer(position_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(position_id);
glBindBuffer(GL_ARRAY_BUFFER, mdlLeftFlame.nid);
glVertexAttribPointer(normal_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(normal_id);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mdlLeftFlame.iid);
glDrawElements(GL_TRIANGLES, left_flame_numind, GL_UNSIGNED_SHORT, 0);
}
void rRightFlame(f32 x, f32 y, f32 z, f32 rx)
{
bindstate = -1;
mIdent(&model);
mTranslate(&model, x, y, z);
mRotX(&model, -rx);
f32 mag = psp*32.f;
if(mag > 0.4f)
mag = 0.4f;
mRotY(&model, mag);
mMul(&modelview, &model, &view);
glUniformMatrix4fv(modelview_id, 1, GL_FALSE, (f32*) &modelview.m[0][0]);
glUniform1f(opacity_id, 1.0f);
glUniform3f(color_id, 0.062f, 1.f, 0.873f);
glBindBuffer(GL_ARRAY_BUFFER, mdlRightFlame.vid);
glVertexAttribPointer(position_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(position_id);
glBindBuffer(GL_ARRAY_BUFFER, mdlRightFlame.nid);
glVertexAttribPointer(normal_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(normal_id);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mdlRightFlame.iid);
glDrawElements(GL_TRIANGLES, right_flame_numind, GL_UNSIGNED_SHORT, 0);
}
void rFace(f32 x, f32 y, f32 z, f32 rx)
{
bindstate = -1;
mIdent(&model);
mTranslate(&model, x, y, z);
mRotX(&model, -xrot);
mGetDirZ(&pfd, model);
vInv(&pfd);
const f32 dot = vDot(pfd, pld);
if(dot < NECK_ANGLE)
{
mIdent(&model);
mTranslate(&model, x, y, z);
mRotX(&model, -lgr);
}
else
{
lgr = xrot;
}
mMul(&modelview, &model, &view);
glUniformMatrix4fv(modelview_id, 1, GL_FALSE, (f32*) &modelview.m[0][0]);
glUniform1f(opacity_id, 1.0f);
glUniform3f(color_id, 1.f, 1.f, 1.f);
glBindBuffer(GL_ARRAY_BUFFER, mdlFace.vid);
glVertexAttribPointer(position_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(position_id);
glBindBuffer(GL_ARRAY_BUFFER, mdlFace.nid);
glVertexAttribPointer(normal_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(normal_id);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mdlFace.iid);
glDrawElements(GL_TRIANGLES, face_numind, GL_UNSIGNED_SHORT, 0);
}
void rBreak(f32 x, f32 y, f32 z, f32 rx)
{
bindstate = -1;
mIdent(&model);
mTranslate(&model, x, y, z);
mRotX(&model, -xrot);
vec dir;
mGetDirZ(&dir, model);
vInv(&dir);
const f32 dot = vDot(dir, pld);
if(dot < NECK_ANGLE)
{
mIdent(&model);
mTranslate(&model, x, y, z);
mRotX(&model, -lgr);
}
else
{
lgr = xrot;
}
mMul(&modelview, &model, &view);
glUniformMatrix4fv(modelview_id, 1, GL_FALSE, (f32*) &modelview.m[0][0]);
glUniform1f(opacity_id, 1.0f);
glUniform3f(color_id, fone(0.644f+(1.f-pb)), fone(0.209f+(1.f-pb)), fone(0.f+(1.f-pb)));
glBindBuffer(GL_ARRAY_BUFFER, mdlPbreak.vid);
glVertexAttribPointer(position_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(position_id);
glBindBuffer(GL_ARRAY_BUFFER, mdlPbreak.nid);
glVertexAttribPointer(normal_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(normal_id);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mdlPbreak.iid);
glDrawElements(GL_TRIANGLES, pbreak_numind, GL_UNSIGNED_SHORT, 0);
}
void rShield(f32 x, f32 y, f32 z, f32 rx)
{
bindstate = -1;
mIdent(&model);
mTranslate(&model, x, y, z);
mRotX(&model, -xrot);
vec dir;
mGetDirZ(&dir, model);
vInv(&dir);
const f32 dot = vDot(dir, pld);
if(dot < NECK_ANGLE)
{
mIdent(&model);
mTranslate(&model, x, y, z);
mRotX(&model, -lgr);
}
else
{
lgr = xrot;
}
mMul(&modelview, &model, &view);
glUniformMatrix4fv(modelview_id, 1, GL_FALSE, (f32*) &modelview.m[0][0]);
glUniform1f(opacity_id, 1.0f);
glUniform3f(color_id, fone(0.f+(1.f-ps)), fone(0.8f+(1.f-ps)), fone(0.28f+(1.f-ps)));
glBindBuffer(GL_ARRAY_BUFFER, mdlPshield.vid);
glVertexAttribPointer(position_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(position_id);
glBindBuffer(GL_ARRAY_BUFFER, mdlPshield.nid);
glVertexAttribPointer(normal_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(normal_id);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mdlPshield.iid);
glDrawElements(GL_TRIANGLES, pshield_numind, GL_UNSIGNED_SHORT, 0);
}
void rSlow(f32 x, f32 y, f32 z, f32 rx)
{
bindstate = -1;
mIdent(&model);
mTranslate(&model, x, y, z);
mRotX(&model, -xrot);
vec dir;
mGetDirZ(&dir, model);
vInv(&dir);
const f32 dot = vDot(dir, pld);
if(dot < NECK_ANGLE)
{
mIdent(&model);
mTranslate(&model, x, y, z);
mRotX(&model, -lgr);
}
else
{
lgr = xrot;
}
mMul(&modelview, &model, &view);
glUniformMatrix4fv(modelview_id, 1, GL_FALSE, (f32*) &modelview.m[0][0]);
glUniform1f(opacity_id, 1.0f);
glUniform3f(color_id, fone(0.429f+(1.f-psl)), fone(0.f+(1.f-psl)), fone(0.8f+(1.f-psl)));
glBindBuffer(GL_ARRAY_BUFFER, mdlPslow.vid);
glVertexAttribPointer(position_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(position_id);
glBindBuffer(GL_ARRAY_BUFFER, mdlPslow.nid);
glVertexAttribPointer(normal_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(normal_id);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mdlPslow.iid);
glDrawElements(GL_TRIANGLES, pslow_numind, GL_UNSIGNED_SHORT, 0);
}
void rRepel(f32 x, f32 y, f32 z, f32 rx)
{
bindstate = -1;
mIdent(&model);
mTranslate(&model, x, y, z);
mRotX(&model, -xrot);
vec dir;
mGetDirZ(&dir, model);
vInv(&dir);
const f32 dot = vDot(dir, pld);
if(dot < NECK_ANGLE)
{
mIdent(&model);
mTranslate(&model, x, y, z);
mRotX(&model, -lgr);
}
else
{
lgr = xrot;
}
mMul(&modelview, &model, &view);
glUniformMatrix4fv(modelview_id, 1, GL_FALSE, (f32*) &modelview.m[0][0]);
glUniform1f(opacity_id, 1.0f);
glUniform3f(color_id, fone(0.095f+(1.f-pre)), fone(0.069f+(1.f-pre)), fone(0.041f+(1.f-pre)));
glBindBuffer(GL_ARRAY_BUFFER, mdlPrepel.vid);
glVertexAttribPointer(position_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(position_id);
glBindBuffer(GL_ARRAY_BUFFER, mdlPrepel.nid);
glVertexAttribPointer(normal_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(normal_id);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mdlPrepel.iid);
glDrawElements(GL_TRIANGLES, prepel_numind, GL_UNSIGNED_SHORT, 0);
}
void rShieldElipse(f32 x, f32 y, f32 z, f32 rx, f32 opacity)
{
bindstate = -1;
mIdent(&model);
mTranslate(&model, x, y, z);
mRotX(&model, -rx);
mMul(&modelview, &model, &view);
glUniformMatrix4fv(modelview_id, 1, GL_FALSE, (f32*) &modelview.m[0][0]);
glUniform1f(opacity_id, opacity);
glUniform3f(color_id, 0.f, 0.717, 0.8f);
glBindBuffer(GL_ARRAY_BUFFER, mdlShield.vid);
glVertexAttribPointer(position_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(position_id);
glBindBuffer(GL_ARRAY_BUFFER, mdlShield.nid);
glVertexAttribPointer(normal_id, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(normal_id);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mdlShield.iid);
glEnable(GL_BLEND);
glDrawElements(GL_TRIANGLES, shield_numind, GL_UNSIGNED_SHORT, 0);
glDisable(GL_BLEND);
}
void rPlayer(f32 x, f32 y, f32 z, f32 rx)
{
psp = vMag(pv);
rLegs(x, y, z, rx);
rBody(x, y, z, rx);
rFuel(x, y, z, rx);
rArms(x, y+2.6f, z, rx);
uint lf=0, rf=0;
if(keystate[0] == 1)
rf = 1;
if(keystate[1] == 1)
lf = 1;
if(keystate[2] == 1)
rf = 1, lf = 1;
if(keystate[3] == 1)
rf = 1, lf = 1;
if(keystate[4] == 1)
rf = 1, lf = 1;
if(keystate[5] == 1)
rf = 1, lf = 1;
if(lf == 1)
rLeftFlame(x, y+2.6f, z, rx);
if(rf == 1)
rRightFlame(x, y+2.6f, z, rx);
rFace(x, y+3.4f, z, rx);
rBreak(x, y+3.4f, z, rx);
rShield(x, y+3.4f, z, rx);
rSlow(x, y+3.4f, z, rx);
rRepel(x, y+3.4f, z, rx);
if(so > 0.f)
{
const f32 ss = 1.f-(so*RECIP_MAX_ROCK_SCALE);
if(ps == 0.f)
{
pf -= FUEL_DRAIN_RATE * ss * dt;
pf = fzero(pf);
}
else
{
ps -= SHIELD_DRAIN_RATE * ss * dt;
ps = fzero(ps);
rShieldElipse(x, y+1.f, z, rx, fsat(ss));
}
//printf("s: %g\n", ps);
}
}
//*************************************
// game functions
//*************************************
void newGame(unsigned int seed)
{
const uint64_t nst = microtime();
srand(seed);
srandf(seed);
char strts[16];
timestamp(&strts[0]);
printf("\n[%s] Game Start [%u].\n", strts, seed);
glfwSetWindowTitle(window, "Space Miner");
#ifndef __arm__
const f32 scalar = uRandFloat(8.f, 12.f);
FAR_DISTANCE = (float)ARRAY_MAX / scalar;
printf("Far Distance Divisor: %g\n", scalar);
#endif
pp = (vec){0.f, 0.f, 0.f};
pv = (vec){0.f, 0.f, 0.f};
pd = (vec){0.f, 0.f, 0.f};
pld = (vec){0.f, 0.f, 0.f};
st = 0;
lf = 100;
ct = 0;
pm = 0;
so = 0.f;
pr = 0.f;
lgr = 0.f;
pf = 1.f;
pb = 1.f;
ps = 1.f;
psl = 0.f;
pre = 0.f;
psp = 0.f;
for(uint i = 0; i < ARRAY_MAX; i++)
{
printf("Loaded: %u / %u\n", i, ARRAY_MAX);
array_rocks[i].free = 0;
array_rocks[i].scale = uRandFloat(0.1f, MAX_ROCK_SCALE);
array_rocks[i].pos.x = uRandFloat(-FAR_DISTANCE, FAR_DISTANCE);
array_rocks[i].pos.y = uRandFloat(-FAR_DISTANCE, FAR_DISTANCE);
array_rocks[i].pos.z = uRandFloat(-FAR_DISTANCE, FAR_DISTANCE);
array_rocks[i].rnd = (uint)uRandFloat(0.f, 1000.f);
array_rocks[i].rndf = uRandFloat(0.05f, 0.3f);
if(esRand(0, 1000) < 500)
{
array_rocks[i].qshield = uRandFloat(0.f, 1.f);
array_rocks[i].qbreak = uRandFloat(0.f, 1.f);
array_rocks[i].qslow = uRandFloat(0.f, 1.f);
array_rocks[i].qrepel = uRandFloat(0.f, 1.f);
array_rocks[i].qfuel = uRandFloat(0.f, 1.f);
}
else
{
array_rocks[i].qshield = 0.f;
array_rocks[i].qbreak = 0.f;
array_rocks[i].qslow = 0.f;
array_rocks[i].qrepel = 0.f;
array_rocks[i].qfuel = 0.f;
array_rocks[i].nores = 1;
}
for(uint j = 0; j < 720; j += 3)
{
uint set = 0;
#define CLR_CHANCE 0.01f
// break
if(uRandFloat(0.f, 1.f) < array_rocks[i].qbreak*CLR_CHANCE)
{
array_rocks[i].colors[j] = 0.644f;
array_rocks[i].colors[j+1] = 0.209f;
array_rocks[i].colors[j+2] = 0.f;
set = 1;
}
// shield
if(set == 0 && uRandFloat(0.f, 1.f) < array_rocks[i].qshield*CLR_CHANCE)
{
array_rocks[i].colors[j] = 0.f;
array_rocks[i].colors[j+1] = 0.8f;
array_rocks[i].colors[j+2] = 0.28f;
set = 1;
}
// slow
if(set == 0 && uRandFloat(0.f, 1.f) < array_rocks[i].qslow*CLR_CHANCE)
{
array_rocks[i].colors[j] = 0.429f;
array_rocks[i].colors[j+1] = 0.f;
array_rocks[i].colors[j+2] = 0.8f;
set = 1;
}
// repel
if(set == 0 && uRandFloat(0.f, 1.f) < array_rocks[i].qrepel*CLR_CHANCE)
{
array_rocks[i].colors[j] = 0.095f;
array_rocks[i].colors[j+1] = 0.069f;
array_rocks[i].colors[j+2] = 0.041f;