Refactorisation

CMakeLists.txt

@@ -19,10 +19,11 @@ set(SOURCES
   src/main.c
   src/moteur.c
   src/map.c
-#  src/opti.S
+  src/sprites.c
 )
 
 set(ASSETS
+  assets-fx/sprite.png
   assets-fx/textures/briques0.png
   assets-fx/textures/buisson1.png
 )
@@ -30,8 +31,7 @@ set(ASSETS
 fxconv_declare_assets(${ASSETS} WITH_METADATA)
 
 add_executable(Copy3DEngine ${SOURCES} ${ASSETS})
-#the -I is an ugly hack because lephe won't let us use render-fx.h >:(
-target_compile_options(Copy3DEngine PRIVATE -flto -Wall -Wextra -O2 -I "$ENV{HOME}/.local/share/giteapc/Lephenixnoir/gint/src/render-fx/")
+target_compile_options(Copy3DEngine PRIVATE -Wall -Wextra -Ofast)
 target_compile_definitions(Copy3DEngine PRIVATE NAMEOFGAME="${NAMEOFGAME}" AUTHOR="${AUTHOR}")
 target_link_libraries(Copy3DEngine Gint::Gint)
 target_link_libraries(Copy3DEngine LibProf::LibProf)

assets-fx/fxconv-metadata.txt

@@ -0,0 +1,3 @@
+sprite.png:
+  type: bopti-image
+  name: sprite_tst

src/config.h

@@ -0,0 +1,16 @@
+#pragma once
+
+//param. graphiques
+#define screen_w 128
+#define screen_h 64
+#define viewport_w 128
+#define viewport_h 64
+#define max_dist fix(32)
+
+#define TSIZE 32
+
+#define TINDEX_S 16
+
+#define debug 1 //pour afficher les infos de debug
+
+#define asm_opti 0

src/fixed.h

@@ -4,8 +4,11 @@
 //vient de https://gitea.planet-casio.com/Slyvtt/OutRun/src/branch/master/src
 //
 #pragma once
+
 #include <stdint.h>
 
+#include "config.h"
+
 typedef int32_t fixed_t;
 /* Standard arithmetic. */
 
@@ -69,11 +72,6 @@ static inline double f2double(fixed_t f)
     return (double)f / 65536;
 }
 
-static inline double f2int(fixed_t f)
-{
-    return (int)f / 65536;
-}
-
 static inline fixed_t feasein(fixed_t x)
 {
     return fmul(x, x);
@@ -90,6 +88,10 @@ static inline fixed_t fease(fixed_t x)
     }
 }
 
+static inline fixed_t fixabs(fixed_t x){
+    return x & 0x80000000;
+}
+
 static inline fixed_t fV2d_dotp(V2d u, V2d v){
     return fmul(u.x,v.x) + fmul(u.y,v.y);
 }

src/game.h

@@ -0,0 +1,25 @@
+// Voir README.md pour license précise, par Fcalva 2023-2024 et est sous GPLv3
+
+#ifndef game__h
+#define game__h
+
+#include "utils.h"
+#include "map.h"
+
+typedef struct {
+
+  V2d pos;
+  V2d dir;
+  V2d plane;
+
+} RcActor;
+
+typedef struct {
+
+  RcActor player;
+
+  uint8_t *current_map;
+
+} RcGame;
+
+#endif

src/main.c

@@ -13,9 +13,12 @@
 
 #include "fixed.h"
 
+//#include "utils.h"
+#include "game.h"
 #include "gint/display-fx.h"
 #include "moteur.h"
 #include "map.h"
+#include "config.h"
 
 //====== Copy3DEngine =====
 // Git du moteur : https://gitea.planet-casio.com/Fcalva/Copy3DEngine
@@ -35,25 +38,28 @@ extern uint8_t map_test[map_w][map_h];
 
 extern bopti_image_t briques0;
 extern bopti_image_t buisson0;
+extern bopti_image_t sprite_tst;
 
 char exit_game = 0;
 char disp_frame_time = 0;
 char first_frame = 0;
 int frame_time_timer = 1;
 
-fixed_t posX;
-fixed_t posY;
-fixed_t dirX;
-fixed_t dirY;
-fixed_t planeX;
-fixed_t planeY;
+RcGame game = {
+  .player = {
+    .pos = {fix(3.1), fix(3.1)},
+    .dir = {fix(0), fix(1)},
+    .plane = {fix(0.66), fix(0)}
+  },
+  .current_map = (void*)&map_test
+};
 
 int frame_time = 1;
 
 void keys_get(){
   pollevent();
 
-  move();
+  move(&game);
 
   if (keydown(KEY_F1) && frame_time_timer <= 0) {
     if (disp_frame_time == 0) {
@@ -94,8 +100,8 @@ int main(){
 
   //Vos textures générées procéduralement
 
-  tex_index[0] = &briques0;//bopti_make(64,64,1);
-  tex_index[3] = &briques0;//bopti_make(64, 64,0);
+  tex_index[0] = &briques0;
+  tex_index[3] = &briques0;
 
   prof_init();
 
@@ -107,6 +113,7 @@ int main(){
 
   #if debug
   EngineTimers timers;
+  //gdb_start_on_exception();
   #endif
 
   while (!exit_game) {
@@ -123,21 +130,22 @@ int main(){
 
     draw_walls(
     #if debug
-      &timers
+      &timers,
     #endif
+      &game
     );
 
     if (disp_frame_time == 1) dprint( 0, 0, C_BLACK, "%d ms", frame_time);
 
     #if debug
-    dprint( 1, 9, C_BLACK, "plX %d", planeX);
+    /*dprint( 1, 9, C_BLACK, "plX %d", planeX);
     dprint( 1, 18, C_BLACK, "plY %d", planeY);
     dprint( 1, 27, C_BLACK, "dX %d", dirX);
     dprint( 1, 36, C_BLACK, "dY %d", dirY);
     dprint( 1, 45, C_BLACK, "pX %d", posX);
-    dprint( 1, 54, C_BLACK, "pY %d", posY);
-    dprint( 1, 63, C_BLACK, "Rct %d", prof_time(timers.raycast_time));
-    dprint( 1, 72, C_BLACK, "Dt %d", prof_time(timers.draw_time));
+    dprint( 1, 54, C_BLACK, "pY %d", posY);*/
+    dprint( 1, 9, C_BLACK, "Rct %d", prof_time(timers.raycast_time));
+    dprint( 1, 18, C_BLACK, "Dt %d", prof_time(timers.draw_time));
     timers.raycast_time = prof_make();
     timers.draw_time = prof_make();
     #endif
@@ -147,6 +155,7 @@ int main(){
     frame_time = (int)prof_time(frame)/1000;
     first_frame = 0;
   }
+
 c3d_abort:
 
   dgray(DGRAY_OFF);

src/map.h

@@ -1,12 +1,16 @@
 // Voir README.md pour license précise, par Fcalva 2023-2024 et est sous GPLv3
 
 #include "fixed.h"
-#ifndef map_test_M
-#define map_test_M
+#ifndef map__h
+#define map__h
+
+typedef struct {
+
+} RcMap;
 
 //! Attention à avoir *exactement* la même taille entre ces valeurs et la carte dans map.c !
 
 #define map_w 64
 #define map_h 128
 
-#endif /* map_test.h */
+#endif /* map__h */

src/moteur.c

@@ -8,7 +8,6 @@
 
 #include <gint/display.h>
 #include <gint/keyboard.h>
-#include "render-fx.h"
 #include <gint/gray.h>
 #include <libprof.h>
 
@@ -18,26 +17,25 @@
 #include "gint/display-fx.h"
 #include "moteur.h"
 #include "map.h"
+#include "game.h"
+#include "config.h"
 
 // moteur.c :
 // ici se trouvent tout ce qui concerne les graphismes, mouvement et collisions
 //
 //
 
-void move() {
+void move(RcGame *game) {
   extern int frame_time;
   fixed_t moveSpeed = fmul(fix(frame_time), 0x148); //frame_time * fix(carrés/seconde/1000) là carrés/seconde = 5
   fixed_t rotSpeed = fmul(fix(frame_time), 0x83); //frame_time * fix(radians/seconde/1000) là radians/seconde = 2
   fixed_t c_rotSpeed = fix(cos(f2float(rotSpeed)));
   fixed_t s_rotSpeed = fix(sin(f2float(rotSpeed)));
 
-  extern uint8_t map_test[map_w][map_h];
-  extern fixed_t planeX;
-  extern fixed_t planeY;
-  extern fixed_t dirX;
-  extern fixed_t dirY;
-  extern fixed_t posX;
-  extern fixed_t posY;
+  uint8_t *map_test = game->current_map;
+  V2d *plane = &game->player.plane;
+  V2d *dir = &game->player.dir;
+  V2d *pos = &game->player.pos;
 
   fixed_t oldDirX;
   fixed_t oldPlaneX;
@@ -47,132 +45,62 @@ void move() {
   int ytemp2;
 
   if (keydown(KEY_UP)) {
-    xtemp1 = f2int(posX + fmul(dirX, moveSpeed) - 0xF);
-    ytemp1 = f2int(posY);
-    xtemp2 = f2int(posX);
-    ytemp2 = f2int(posY + fmul(dirY, moveSpeed) - 0xF);
+    xtemp1 = ffloor(pos->x + fmul(dir->x, moveSpeed));
+    ytemp1 = ffloor(pos->y);
+    xtemp2 = ffloor(pos->x);
+    ytemp2 = ffloor(pos->y + fmul(dir->y, moveSpeed));
 
-    if(map_test[xtemp1][ytemp1] == 0) posX += fmul(dirX, moveSpeed);
-    if(map_test[xtemp2][ytemp2] == 0) posY += fmul(dirY, moveSpeed);
+    if(!map_test[xtemp1*map_w+ytemp1])
+      pos->x += fmul(dir->x, moveSpeed);
+    if(!map_test[xtemp2*map_w+ytemp2])
+      pos->y += fmul(dir->y, moveSpeed);
   }
   //move backwards if no wall behind you
   if (keydown(KEY_DOWN)) {
-    xtemp1 = f2int(posX - fmul(dirX, moveSpeed) + 0xF);
-    ytemp1 = f2int(posY);
-    xtemp2 = f2int(posX);
-    ytemp2 = f2int(posY - fmul(dirY, moveSpeed) + 0xF);
+    xtemp1 = ffloor(pos->x - fmul(dir->x, moveSpeed));
+    ytemp1 = ffloor(pos->y);
+    xtemp2 = ffloor(pos->x);
+    ytemp2 = ffloor(pos->y - fmul(dir->y, moveSpeed));
 
-    if(map_test[xtemp1][ytemp1] == 0) posX -= fmul(dirX, moveSpeed);
-    if(map_test[xtemp2][ytemp2] == 0) posY -= fmul(dirY, moveSpeed);
+    if(!map_test[xtemp1*map_w+ytemp1])
+      pos->x -= fmul(dir->x, moveSpeed);
+    if(!map_test[xtemp2*map_w+ytemp2])
+      pos->y -= fmul(dir->y, moveSpeed);
   }
-  //rotate to the rightdouble sin_rotspeed;
+  //rotate to the right
   if (keydown(KEY_RIGHT)) {
     //both camera direction and camera plane must be rotated
-    oldDirX = dirX;
-    dirX = (fmul(dirX, c_rotSpeed)+1) - (fmul(dirY, -s_rotSpeed)+1); 
-     dirY = (fmul(oldDirX, -s_rotSpeed)+1) + (fmul(dirY, c_rotSpeed)+1);
-     oldPlaneX = planeX;
-     planeX = (fmul(planeX, c_rotSpeed)+1) - (fmul(planeY, -s_rotSpeed)+1);
-    planeY = (fmul(oldPlaneX, -s_rotSpeed)+1) + (fmul(planeY, c_rotSpeed)+1);
+    oldDirX = dir->x;
+    dir->x = (fmul(dir->x, c_rotSpeed)+1) - (fmul(dir->y, -s_rotSpeed)+1);
+    dir->y = (fmul(oldDirX, -s_rotSpeed)+1) + (fmul(dir->y, c_rotSpeed)+1);
+    oldPlaneX = plane->x;
+    plane->x = (fmul(plane->x, c_rotSpeed)+1) - (fmul(plane->y, -s_rotSpeed)+1);
+    plane->y = (fmul(oldPlaneX, -s_rotSpeed)+1) + (fmul(plane->y, c_rotSpeed)+1);
   }
   //rotate to the left
   if (keydown(KEY_LEFT)) {
     //both camera direction and camera plane must be rotated
-    oldDirX = dirX;
-    dirX = (fmul(dirX, c_rotSpeed)-1) - (fmul(dirY, s_rotSpeed)-1);
-    dirY = (fmul(oldDirX, s_rotSpeed)+1) + (fmul(dirY, c_rotSpeed)+1);
-    oldPlaneX = planeX;
-    planeX = (fmul(planeX, c_rotSpeed)-1) - (fmul(planeY, s_rotSpeed) - 1);
-    planeY = (fmul(oldPlaneX, s_rotSpeed)+1) + (fmul(planeY, c_rotSpeed) + 1);
+    oldDirX = dir->x;
+    dir->x = (fmul(dir->x, c_rotSpeed)-1) - (fmul(dir->y, s_rotSpeed)-1);
+    dir->y = (fmul(oldDirX, s_rotSpeed)+1) + (fmul(dir->y, c_rotSpeed)+1);
+    oldPlaneX = plane->x;
+    plane->x = (fmul(plane->x, c_rotSpeed)-1) - (fmul(plane->y, s_rotSpeed) - 1);
+    plane->y = (fmul(oldPlaneX, s_rotSpeed)+1) + (fmul(plane->y, c_rotSpeed) + 1);
   }
 
-  if (dirX > 0xFFFF) dirX = 0xFFFF;
-  if (dirY > 0xFFFF) dirY = 0xFFFF;
-  if (dirX < -0xFFFF) dirX = -0xFFFF;
-  if (dirY < -0xFFFF) dirY = -0xFFFF;
-}
-
-void spawn_gen(){
-  extern fixed_t posX;
-  extern fixed_t posY;
-  extern fixed_t dirX;
-  extern fixed_t dirY;
-  extern fixed_t planeX;
-  extern fixed_t planeY;
-  extern uint8_t map_test[map_w][map_h];
-  
-  int seed, seed_x, seed_y;
-  int SeedSeed;
-
-  time_t timeN; 
-  time(&timeN);
-  SeedSeed = timeN;
-
-  srand(SeedSeed);
-
-  while(1){
-    seed = rand() * 0.5 + rand() * 0.5;
-    seed_x = seed & 0b1111111;
-    seed_y = (seed >> 8) & 0b111111;
-    if (seed_x < map_w && seed_y < map_h && (seed_x < 111 && seed_y > 15)){
-      if(map_test[seed_x][seed_y] == 0){
-        break;
-      }
-    }
-  }
-  fixed_t start_dirX, start_dirY;
-
-  int dirSeed = (seed >> 9) & 0b11 ;
-  switch(dirSeed){
-    case 0: {
-      start_dirX = 0x0;
-      start_dirY = 0xFFFF;
-      planeX = fix(0.66);
-      planeY = 0;
-      break;
-    }
-    case 1: {
-      start_dirX = 0xFFFF;
-      start_dirY = 0x0;
-      planeX = 0;
-      planeY = fix(-0.66);
-      break;
-    }
-    case 2: {
-      start_dirX = -0xFFFF;
-      start_dirY = 0x0;
-      planeX = 0;
-      planeY = fix(0.66);
-      break;
-    }
-    case 3: {
-      start_dirX = 0x0;
-      start_dirY = -0xFFFF;
-      planeX = fix(-0.66);
-      planeY = 0;
-      break;
-    }
-    default : {
-      start_dirX = 0xFFFF;
-      start_dirY = 0x0;
-      planeX = 0;
-      planeY = fix(-0.66);
-      break;
-    }
-  }
-
-  posX = fix(seed_x) + 0x7FFF;
-  posY = fix(seed_y) + 0x7FFF;  //x and y start position
-  dirX = start_dirX;
-  dirY = start_dirY; //initial direction vector
+  if (dir->x > 0xFFFF) dir->x = 0xFFFF;
+  if (dir->y > 0xFFFF) dir->y = 0xFFFF;
+  if (dir->x < -0xFFFF) dir->x = -0xFFFF;
+  if (dir->y < -0xFFFF) dir->y = -0xFFFF;
 }
 
 void load_map(){
-  spawn_gen();
+
 }
 
 #if asm_opti
 #else
+#endif
 //Fonction fournie par le grand Lephé :D
 inline int __attribute__((always_inline))
   get_pixel(bopti_image_t const *img, int u, int v)
@@ -190,6 +118,23 @@ inline int __attribute__((always_inline))
   return (dark << 1) + light;
 }
 
+inline int __attribute__((always_inline))
+  get_pixel_alpha(bopti_image_t const *img, int u, int v)
+{
+  int layers = image_layer_count(img->profile);
+  int columns = (img->width + 31) >> 5;
+
+  uint32_t const *layer_ptr = (void *)img->data;
+  layer_ptr += (v * columns + (u >> 5)) * layers;
+
+  uint32_t mask = 0x80000000u >> (u & 31);
+
+  int light = (layer_ptr[0] & mask) != 0;
+  int dark  = (layer_ptr[1] & mask) != 0;
+  int alpha = (layer_ptr[2] & mask) != 0;
+  return (alpha << 2) + (dark << 1) + light;
+}
+
 uint32_t *light, *dark;
 
 //Version simplifiée de gpixel dans gint/src/gray/gpixel.c
@@ -244,7 +189,7 @@ void dscale_bopti(bopti_image_t *tex, fixed_t scale_x, fixed_t scale_y, int x, i
         if(screen_x < 0 || screen_x+scale_x > viewport_w)
           return;
         do{
-          cust_dpixel(ffloor(oldx), ffloor(oldy), tpix);
+          dpixel(ffloor(oldx), ffloor(oldy), tpix);
           oldx += 0xFFFF;
         } while(oldx < screen_x+scale_x);
         screen_x += scale_x;
@@ -274,21 +219,21 @@ inline void __attribute__((always_inline))
       screenPos += texSize;
     }
 }
-#endif
 
 void draw_walls(
 #if debug
-  EngineTimers *timers
+  EngineTimers *timers,
 #endif
+  RcGame *game
 ){
-    extern fixed_t posX;
-    extern fixed_t posY;
-    extern fixed_t dirX;
-    extern fixed_t dirY;
-    extern fixed_t planeX;
-    extern fixed_t planeY;
+    fixed_t posX = game->player.pos.x;
+    fixed_t posY = game->player.pos.y;
+    fixed_t dirX = game->player.dir.x;
+    fixed_t dirY = game->player.dir.y;
+    fixed_t planeX = game->player.plane.x;
+    fixed_t planeY = game->player.plane.y;
     extern bopti_image_t *tex_index[TINDEX_S];
-    extern uint8_t map_test[map_w][map_h];
+    uint8_t *map_test = game->current_map;
 
     fixed_t cameraX;
     fixed_t rayDirX;
@@ -331,8 +276,8 @@ void draw_walls(
       
 
       //which box of the map we're in
-      mapX = f2int(posX);
-      mapY = f2int(posY);
+      mapX = ffloor(posX);
+      mapY = ffloor(posY);
 
       // length of ray from one x or y-side to next x or y-side
       // these are derived as:
@@ -378,11 +323,11 @@ void draw_walls(
       //perform DDA
       while(true) {
         //Check if the ray is out of range/bounds
-        if (sideDistX >= max_dist || sideDistY >= max_dist || mapX < 0 || mapY < 0 || mapX >= map_w || mapY >= map_h) {
+        if (sideDistX >= max_dist || sideDistY >= max_dist || mapX < 0 || mapY < 0 || mapY >= map_w || mapX >= map_h) {
           break;
         }
         //Otherwise check if ray has hit a wall
-        if (map_test[mapX][mapY] > 0) {
+        if (map_test[mapX*map_w+mapY] > 0) {
           break;
         }
         //jump to next map square, either in x-direction, or in y-direction
@@ -418,7 +363,7 @@ void draw_walls(
       fixed_t wallX; //where exactly the wall was hit
       if (side == 0) wallX = posY + fmul(perpWallDist, rayDirY); 
       else  wallX = posX + fmul(perpWallDist, rayDirX);     
-      wallX -= fix(floor(f2int(wallX)));
+      wallX -= fix(ffloor(wallX));
 
       //x coordinate on the texture
       texX = fmul(wallX, TSIZE);
@@ -427,7 +372,7 @@ void draw_walls(
       if(side == 0 && rayDirX > 0) texX = 64 - texX - 1;
       if(side == 1 && rayDirY < 0) texX = 64 - texX - 1;
 
-      lineHeight = f2int(fdiv(fix(viewport_h), perpWallDist)); //Taille en px de la ligne
+      lineHeight = ffloor(fdiv(fix(viewport_h), perpWallDist)); //Taille en px de la ligne
       if (lineHeight < 1) lineHeight = 1;
       //if (lineHeight > viewport_h) lineHeight = viewport_h - 1;
 
@@ -444,7 +389,7 @@ void draw_walls(
 
       int linePos = viewport_h/2 - lineHeight/2;
 
-      bopti_image_t *tex = tex_index[map_test[mapX][mapY]];
+      bopti_image_t *tex = tex_index[map_test[mapX*map_w+mapY]];
 
       draw_stripe(tex, texSampleY, linePos,
                     texSize, texX, x);

src/moteur.h

@@ -6,21 +6,8 @@
 #include <libprof.h>
 #include <gint/display.h>
 #include "fixed.h"
-
-//param. graphiques
-#define screen_w 128
-#define screen_h 64
-#define viewport_w 128
-#define viewport_h 64
-#define max_dist fix(32)
-
-#define TSIZE 32
-
-#define TINDEX_S 16
-
-#define debug 0 //pour afficher les infos de debug
-
-#define asm_opti 0
+#include "game.h"
+#include "config.h"
 
 typedef struct {
 
@@ -36,12 +23,12 @@ void draw_stripe(bopti_image_t *tex, int texSampleY, int linePos,
                   fixed_t texSize, int texX, int x);
 
 void load_map();
-void end_screen();
 void draw_walls(
 #if debug
-  EngineTimers *timers
+  EngineTimers *timers,
 #endif
+  RcGame *game
 );
-void move();
+void move(RcGame *game);
 
 #endif /* moteur */

src/sprites.c

@@ -0,0 +1 @@
+// Voir README.md pour license précise, par Fcalva 2023-2024 et est sous GPLv3

src/sprites.h

@@ -0,0 +1,12 @@
+// Voir README.md pour license précise, par Fcalva 2023-2024 et est sous GPLv3
+
+#ifndef sprites__h
+#define sprites__h
+
+#include "utils.h"
+
+#include <gint/display.h>
+
+//void project_sprite(bopti_image_t *tex, V2d pos, )
+
+#endif

src/utils.h

@@ -0,0 +1,9 @@
+// Voir README.md pour license précise, par Fcalva 2023-2024 et est sous GPLv3
+
+#ifndef utils__h
+#define utils__h
+
+#include <stdint.h>
+
+
+#endif