Create Doors_Based_Dungeon_Map.c

ProcGen/Doors_Based_Dungeon_Map.c

@@ -0,0 +1,239 @@
+
+#include "raylib.h"
+
+enum mapflag{mleft,mright,mup,mdown};
+
+static int mapWidth = 50;
+static int mapHeight = 50;
+static float tileWidth;
+static float tileHeight;
+
+static int map[100][100];
+
+static void generatemap(void);
+static bool roomfits(int x,int y,int w,int h);
+static void insertroom(int x,int y,int w,int h);
+static void makeroom(int x,int y);
+
+int main(void)
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    const int screenWidth = 800;
+    const int screenHeight = 450;
+
+    InitWindow(screenWidth, screenHeight, "raylib example.");
+ 
+    SetTargetFPS(60);               // Set our game to run at 60 frames-per-second
+    //--------------------------------------------------------------------------------------
+
+
+    generatemap();
+    
+    tileWidth = (float)screenWidth/(float)mapWidth;
+    tileHeight = (float)screenHeight/(float)mapHeight;
+
+    // Main game loop
+    while (!WindowShouldClose())    // Detect window close button or ESC key
+    {
+        // Update
+        //----------------------------------------------------------------------------------
+        
+        if(IsKeyReleased(KEY_SPACE) || (IsMouseButtonReleased(0)))generatemap();
+        //----------------------------------------------------------------------------------
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+            ClearBackground(RAYWHITE);
+            // Draw the map..
+            for(int y=0;y<mapHeight;y++){
+            for(int x=0;x<mapWidth;x++){
+                if(map[x][y]==1){ // Wall
+                    DrawRectangle(x*tileWidth,y*tileHeight,tileWidth,tileHeight,BLACK);
+                }
+                if(map[x][y]==2){ // Floor
+                    DrawRectangle(x*tileWidth,y*tileHeight,tileWidth,tileHeight,DARKGRAY);
+                }
+                if(map[x][y]==3){ // Door
+                    DrawRectangle(x*tileWidth,y*tileHeight,tileWidth,tileHeight,WHITE);
+                }
+
+            }    
+            }
+            DrawText("Press Space or Left Mouse Button for new map.",0,0,30,RED);
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    CloseWindow();        // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+
+}
+
+
+
+void generatemap(){
+    
+    // erase old map;
+    for(int y=0;y<mapHeight;y++){
+    for(int x=0;x<mapWidth;x++){
+        map[x][y] = 0;
+    }}        
+    map[mapWidth/2][mapHeight/2]=3;
+    //
+    int timeout=0;
+    while (timeout<(mapWidth*mapHeight)*20){
+        timeout+=1;
+        int x=GetRandomValue(11,mapWidth-11);
+        int y=GetRandomValue(11,mapHeight-11);
+        if(map[x][y] == 3){
+            makeroom(x,y);
+        }
+        if(timeout>123456)return;
+    }
+    //'here we turn doors into walls
+    //'if they should be walls
+    for(int y1=1;y1<mapHeight-1;y1++){
+    for(int x1=1;x1<mapWidth-1;x1++){
+        if(map[x1][y1] == 3){
+            int cnt=0;
+            for(int y2=y1-1;y2<y1+1;y2++){
+            for(int x2=x1-1;x2<x1+1;x2++){
+                if(map[x2][y2] == 2)cnt+=1;
+            }}
+            if(cnt>3)map[x1][y1] = 2;
+        }
+    }}
+
+   //here we turn doors into walls if it is blocked
+    for(int y1=1;y1<=mapHeight-1;y1++){
+    for(int x1=1;x1<=mapWidth-1;x1++){
+        if(map[x1][y1] == 3){
+            int cnt=0;
+            for(int y2=y1-1;y2<=y1+1;y2++){
+            for(int x2=x1-1;x2<=x1+1;x2++){
+                if(map[x2][y2]==2)cnt+=2;
+            }}
+            if(cnt>6)map[x1][y1]=2;
+        }       
+    }}
+    //'here we turn doors into walls if they
+    //' touch tiles that are nothing (0)
+    for(int y1=1;y1<=mapHeight-1;y1++){
+    for(int x1=1;x1<=mapWidth-1;x1++){
+        if(map[x1][y1] == 3){
+            int cnt=0;
+            for(int y2=y1-1;y2<=y1+1;y2++){
+            for(int x2=x1-1;x2<=x1+1;x2++){
+                if(map[x2][y2] == 0)cnt+=1;
+            }}
+            if(cnt>0)map[x1][y1] = 2;
+        }
+    }}
+    //'here we turn the doors into floors
+    
+   for(int y1=0;y1<=mapHeight;y1++){
+   for(int x1=0;x1<=mapWidth;x1++){
+        if(map[x1][y1] == 3)map[x1][y1] = 1;
+   }}
+
+}
+    
+bool roomfits(int x,int y,int w,int h){
+    for(int y1=y;y1<=y+h;y1++){
+    for(int x1=x;x1<=x+w;x1++){
+        if(x1<0 || x1>=mapWidth || y1<0 || y1>=mapHeight)return false;
+        if(map[x1][y1] == 1)return false;
+    }
+    }
+    return true;
+}
+void insertroom(int x,int y,int w,int h){
+    for(int y2=y;y2<y+h;y2++){
+    for(int x2=x;x2<x+w;x2++){
+        if(x2<0 || x2>=mapWidth || y2<0 || y2>=mapHeight)return;
+        if( map[x2][y2] != 3 )map[x2][y2] = 2;
+    }}
+    
+    for(int y2=y+1;y2<y+h-1;y2++){
+    for(int x2=x+1;x2<x+w-1;x2++){
+        if(x2<0 || x2>=mapWidth || y2<0 || y2>=mapHeight)return;
+        map[x2][y2] = 1;
+    }}
+}
+
+void makeroom(int x,int y){
+    int side=0;
+    if(map[x][y-1] == 0){
+        side=mup;
+    }else if(map[x+1][y] == 0){
+        side=mright;
+    }else if(map[x][y+1] == 0){
+        side=mdown;
+    }else if(map[x-1][y] == 0){
+        side=mleft;
+    }	
+    int w=GetRandomValue(5,10);
+    int h=GetRandomValue(5,10);
+    if(side==mup){
+        int x1=x-w/2;
+        int y1=y-h;
+        if(roomfits(x1,y1,w,h)){
+            insertroom(x1,y1,w,h+1);
+            //'door up
+            map[x1+GetRandomValue(2,w-3)][y1] = 3;
+            //' door right
+            map[x1+w-1][y1+GetRandomValue(2,h-3)] = 3;
+            //'door left
+            map[x1][y1+GetRandomValue(2,h-3)] = 3;
+        }
+        
+    }
+    if(side==mright){
+        int x1=x+1;
+        int y1=y-h/2;
+        if(roomfits(x1,y1,w,h)){
+            insertroom(x1-1,y1,w,h);
+            //'door up
+            map[x1+GetRandomValue(2,w-3)][y1] = 3;
+            //'door down
+            map[x1+GetRandomValue(2,w-3)][y1+h-1] = 3;
+            //' door right
+            map[x1+w-2][y1+GetRandomValue(2,h-3)] = 3;
+        }
+    }
+    if(side==mleft){
+        int x1=x-w;
+        int y1=y-h/2;
+        if(roomfits(x1,y1,w,h)){
+            insertroom(x1,y1,w+1,h);
+            //'door up
+            map[x1+GetRandomValue(2,w-3)][y1] = 3;
+            //'door down
+            map[x1+GetRandomValue(2,w-3)][y1+h-1] = 3;
+            //'door left
+            map[x1][y1+GetRandomValue(2,h-3)] = 3;
+
+        }
+    }
+    if(side==mdown){
+        int x1=x-w/2;
+        int y1=y+1;
+        if(roomfits(x1,y1,w,h)){
+            insertroom(x1,y1-1,w,h);
+            //'door down
+            map[x1+GetRandomValue(2,w-3)][y1+h-2] = 3;
+            //'door left
+            map[x1][y1+GetRandomValue(2,h-3)] = 3;		
+            //' door right
+            map[x1+w-1][y1+GetRandomValue(2,h-3)] = 3;
+
+        }	
+    }
+
+}