The map displaying is now SUPER fast

src/main.c

@@ -89,14 +89,12 @@ static void get_inputs( void  )
 #endif
 
 
-void GameLogic( void )
-{
+void GameLogic(void) {
 
 }
 
 
-int main(void)
-{
+int main(void) {
 
     #if USB_FEATURE==1
         usb_interface_t const *interfaces[] = {&usb_ff_bulk, NULL};

src/map.c

@@ -2,83 +2,80 @@
 
 #include <gint/display.h>
 
-#define T_HEIGHT 8
-#define T_WIDTH  8
-
 void RenderMap(Player *player, Map *map_level) {
     /* for all Layer (2 in the current configuration: Background is layer 0 and
      * foreground is layer 1 ) */
-    for (int u = 0; u < map_level->nblayers; u++){
-        /* Draws a layer of the map on screen. */
-        /* x and y will contain the position in the loop. */
-        int x, y;
-        /* The positions where we start drawing the tiles will be in tx and
-         * ty. */
-        int tx, ty;
-        /* mx and my will contain how many pixels will be hidden on x and on
-         * y. */
-        int mx, my;
-        /* dw and dh contain the amount of tiles that will be drawn on x and on
-         * y. */
-        int dw = DWIDTH/T_WIDTH+1, dh = DHEIGHT/T_HEIGHT+1;
-        /* mw and mh will contain the height and the width of the map. */
-        int mw = map_level->w*T_WIDTH, mh = map_level->h*T_HEIGHT;
-        /* tile contains the tile to draw. */
-        short int tile;
-        /* The position where I start drawing */
-        int sx, sy;
-        /* Fix sx. */
-        if(player->x<DWIDTH/2){
-            /* If I can't center the player because I'm near the left border of
-             * the map. */
-            player->px = player->x;
-            sx = 0;
-        }else if(player->x+DWIDTH/2>mw){
-            /* If I can't center the player because I'm near the right border of
-             * the map. */
-            sx = mw-DWIDTH;
-            player->px = player->x-sx;
-        }else{
-            /* I can center the player. */
-            player->px = DWIDTH/2;
-            sx = player->x-player->px;
-        }
-        /* Fix sy. */
-        if(player->y<DHEIGHT/2){
-            /* If I can't center the player because I'm near the top border of
-             * the map. */
-            player->py = player->y;
-            sy = 0;
-        }else if(player->y+DHEIGHT/2>mh){
-            /* If I can't center the player because I'm near the bottom border
-             * of the map. */
-            sy = mh-DHEIGHT;
-            player->py = player->y-sy;
-        }else{
-            /* I can center the player. */
-            player->py = DHEIGHT/2;
-            sy = player->y-player->py;
-        }
-        tx = sx/T_WIDTH;
-        ty = sy/T_HEIGHT;
-        mx = sx-tx*T_WIDTH;
-        my = sy-ty*T_HEIGHT;
+    /* x and y will contain the position in the loop. */
+    unsigned char x, y;
+    /* The positions where we start drawing the tiles will be in tx and
+     * ty. */
+    unsigned short int tx, ty;
+    /* mx and my will contain how many pixels will be hidden on x and on
+     * y. */
+    unsigned char mx, my;
+    /* dw and dh contain the amount of tiles that will be drawn on x and on
+     * y. */
+    unsigned char dw = DWIDTH/T_WIDTH+1, dh = DHEIGHT/T_HEIGHT+1;
+    /* mw and mh will contain the height and the width of the map. */
+    unsigned short int mw = map_level->w*T_WIDTH, mh = map_level->h*T_HEIGHT;
+    /* tile contains the tile to draw. */
+    short int tile;
+    /* The position where I start drawing */
+    unsigned short int sx, sy;
+    /* The position of the tile in the tileset. */
+    unsigned short int xtile, ytile;
+    /* The layer we're drawing */
+    unsigned char l;
+    /* Fix sx. */
+    if(player->x<DWIDTH/2){
+        /* If I can't center the player because I'm near the left border of
+         * the map. */
+        player->px = player->x;
+        sx = 0;
+    }else if(player->x+DWIDTH/2>mw){
+        /* If I can't center the player because I'm near the right border of
+         * the map. */
+        sx = mw-DWIDTH;
+        player->px = player->x-sx;
+    }else{
+        /* I can center the player. */
+        player->px = DWIDTH/2;
+        sx = player->x-player->px;
+    }
+    /* Fix sy. */
+    if(player->y<DHEIGHT/2){
+        /* If I can't center the player because I'm near the top border of
+         * the map. */
+        player->py = player->y;
+        sy = 0;
+    }else if(player->y+DHEIGHT/2>mh){
+        /* If I can't center the player because I'm near the bottom border
+         * of the map. */
+        sy = mh-DHEIGHT;
+        player->py = player->y-sy;
+    }else{
+        /* I can center the player. */
+        player->py = DHEIGHT/2;
+        sy = player->y-player->py;
+    }
+    tx = sx/T_WIDTH;
+    ty = sy/T_HEIGHT;
+    mx = sx-tx*T_WIDTH;
+    my = sy-ty*T_HEIGHT;
+    for (l = 0; l < map_level->nblayers; l++){
+        /* Draw a layer of the map on screen. */
         for(y=0;y<dh;y++){
             for(x=0;x<dw;x++){
                 /* I get the tile number if his position is inside the map. Then
                  * I draw it. */
                 if(tx+x>=0 && tx+x < map_level->w &&
                    ty+y>=0 && ty+y < map_level->h){
-                    tile = map_level->layers[u][(y+ty) * map_level->w + tx+x];
+                    tile = map_level->layers[l][(y+ty) * map_level->w + tx+x];
                     /* tile == -1 means nothing to be draw */
                     if(tile >= 0){
                         /* get x and y position in the tileset image */
-                        unsigned short int xtile = (tile %
-                                                   map_level->tileset_size) *
-                                                   T_WIDTH;
-                        unsigned short int ytile = (tile /
-                                                   map_level->tileset_size) *
-                                                   T_HEIGHT;
+                        xtile = (tile % map_level->tileset_size) * T_WIDTH;
+                        ytile = (tile / map_level->tileset_size) * T_HEIGHT;
                         /* render */
                         dsubimage(x*T_WIDTH-mx, y*T_HEIGHT-my,
                                   map_level->tileset, xtile, ytile, 8, 8,

src/map.h

@@ -1,6 +1,8 @@
 #ifndef MAP_H
 #define MAP_H
 
+#define T_HEIGHT 8
+#define T_WIDTH  8
 
 #include <gint/display.h>
 

src/player.c

@@ -2,39 +2,41 @@
 #include "map.h"
 #include <gint/display.h>
 
-#define P_WIDTH 16
-#define P_HEIGHT 16
+#define P_WIDTH 8
+#define P_HEIGHT 8
 
 extern Player MyPlayer;
-extern struct Map *map_level;
+extern Map *map_level;
 extern bopti_image_t demo_player_img;
 
-void PlayerDraw( void )
-{
+void PlayerDraw(void) {
     dimage(MyPlayer.px-P_WIDTH/2, MyPlayer.py-P_HEIGHT/2, &demo_player_img);
 }
 
-void PlayerLeft( void )
-{
-    MyPlayer.x--;
+void PlayerLeft(void) {
+    if(MyPlayer.x > 0){
+        MyPlayer.x--;
+    }
 }
 
-void PlayerRight( void )
-{
-    MyPlayer.x++;
+void PlayerRight(void) {
+    if(MyPlayer.x < map_level->w * T_WIDTH){
+        MyPlayer.x++;
+    }
 }
 
-void PlayerUp( void )
-{
-    MyPlayer.y--;
+void PlayerUp(void) {
+    if(MyPlayer.y > 0){
+        MyPlayer.y--;
+    }
 }
 
-void PlayerDown( void )
-{
-    MyPlayer.y++;
+void PlayerDown(void) {
+    if(MyPlayer.y < map_level->h * T_HEIGHT){
+        MyPlayer.y++;
+    }
 }
 
-void PlayerAction( void )
-{
+void PlayerAction(void) {
 
 }

src/player.h

@@ -1,29 +1,26 @@
 #ifndef PLAYER_H
 #define PLAYER_H
 
-#include <stdint.h>
-
-
 /* Struct that define player parameters */
 typedef struct {
     unsigned short int x, y; /* The position of the player */
-    short int px, py; /* The position of the player on screen */
+    unsigned char px, py; /* The position of the player on screen */
     unsigned short int life; /* How many lives the player still has between 0
                               * and 100. */
 } Player;
 
 /* This function should be called after drawing the map ! */
-void PlayerDraw( void );
+void PlayerDraw(void);
 
-void PlayerLeft( void );
+void PlayerLeft(void);
 
-void PlayerRight( void );
+void PlayerRight(void);
 
-void PlayerUp( void );
+void PlayerUp(void);
 
-void PlayerDown( void );
+void PlayerDown(void);
 
-void PlayerAction( void );
+void PlayerAction(void);
 
 
 #endif