Pakz001.Raylib-Examples/games/blockshooter/block_part2.c

#include "raylib.h"
#include <math.h>

int map[100][100] = {0};



// Get our angle between two points.
static float getangle(float x1,float y1,float x2,float y2);



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
    //--------------------------------------------------------------------------------------

    for(int i=0;i<100;i++){
        map[i][0]=1;
    }

    float posx = 320;
    float posy = 400;

    // Main game loop
    while (!WindowShouldClose())    // Detect window close button or ESC key
    {
        // Update
        //----------------------------------------------------------------------------------
        
        
        //----------------------------------------------------------------------------------
        // Draw
        //----------------------------------------------------------------------------------
        BeginDrawing();

            ClearBackground(RAYWHITE);
 
            for(int y=0;y<10;y++){
            for(int x=0;x<100;x++){
                if(map[x][y]==1){
                    DrawRectangle(x*32,y*32,32,32,RED);
                    DrawRectangle(x*32+1,y*32+1,32-2,32-2,BLUE);
                }
            }}
 
 
            float x = GetMouseX()/32;
            float y = GetMouseY()/32;
            
            if(map[(int)x][(int)y]==0){
            if( map[(int)x][(int)y-1]==1 || map[(int)x-1][(int)y]==1 || map[(int)x+1][(int)y]==1){
                DrawRectangle(x*32,y*32,32,32,DARKGRAY);
            }}
            
            float an = getangle(posx,posy,x*32,y*32);
 
            DrawLine(posx,posy,posx+cos(an)*32,posy+sin(an)*32,DARKGRAY);
 

            

        EndDrawing();
        //----------------------------------------------------------------------------------
    }

    // De-Initialization
    //--------------------------------------------------------------------------------------
    CloseWindow();        // Close window and OpenGL context
    //--------------------------------------------------------------------------------------

    return 0;


}
// Return the angle from - to in float
float getangle(float x1,float y1,float x2,float y2){
    return (float)atan2(y2-y1, x2-x1);
}