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[fishladder.git] / fishladder.c
index 12628ca4bfd991c74da464f514dfbfedeeefe5f8..d85cfca77aa2be9d324a9d07d5e2a5f9803025c1 100644 (file)
 //#define VG_STEAM
 #include "vg/vg.h"
 
-SHADER_DEFINE( colour_shader, 
+m3x3f m_projection;
+m3x3f m_view;
+m3x3f m_mdl;
 
-       // VERTEX
-       "layout (location=0) in vec3 a_co;"
-       "uniform mat4 uPv;"
-       "uniform mat4 uMdl;"
-       ""
-       "void main()"
-       "{"
-       "       vec4 vert_pos = uPv * uMdl * vec4( a_co, 1.0 );"
-       "       gl_Position = vert_pos;"
-       "}",
-       
-       // FRAGMENT
-       "out vec4 FragColor;"
-       "uniform vec4 uColour;"
-       ""
-       "void main()"
-       "{"
-       "       FragColor = uColour;"
-       "}"
-       ,
-       UNIFORMS({ "uPv", "uMdl", "uColour" })
-)
-
-mat4 m_projection;
-mat4 m_view;
-mat4 m_mdl;
-
-int main( int argc, char *argv[] )
-{
-       vg_init( argc, argv, "FishLadder" );
-}
-
-#define CELL_FLAG_INPUT 0x1
-#define CELL_FLAG_OUTPUT 0x2
- #define CELL_FLAG_IO (CELL_FLAG_INPUT|CELL_FLAG_OUTPUT)
-#define CELL_FLAG_WALL 0x4
-#define CELL_FLAG_HOVER 0x8
-#define CELL_FLAG_ITER 0x10
-#define CELL_FLAG_CANAL 0x20
-
-static struct
-{
-       u32 x,y;
-       
-       struct cell
-       {       
-               u32 flags;
-               u32 model_id;
-               
-               char *conditions;
-       }
-       * cells;
-       
-       vec3 origin;
-       struct cell *selected;
-       int select_valid;
-       
-       u32 *io;
-       
-       struct vstack
-       {
-               struct vframe
-               {
-                       int x, y;
-                       int i;
-               }
-               frames[ 64 ];
-               
-               int level;
-               u32 flags;
-       }
-       stack;
-}
-map;
-
-static void map_free(void)
-{
-       for( int i = 0; i < arrlen( map.io ); i ++ )
-       {
-               arrfree( map.cells[ map.io[i] ].conditions );
-       }
+int main( int argc, char *argv[] ) { vg_init( argc, argv, "FishLadder" ); }
 
-       arrfree( map.cells );
-       arrfree( map.io );
-       map.x = 0;
-       map.y = 0;
-       map.cells = NULL;
-       map.io = NULL;
-}
-
-static struct cell *map_tile_at( int pos[2] )
-{
-       if( pos[0] >= 0 && pos[0] < map.x && pos[1] >= 0 && pos[1] < map.y )
-               return map.cells + pos[1]*map.x + pos[0];
-       return NULL;
-}
-
-static int map_load( const char *str )
-{
-       map_free();
-
-       char *c = str;
-       
-       // Scan for width
-       for(;; map.x ++)
-       {
-               if( str[map.x] == ';' )
-                       break;
-               else if( !str[map.x] )
-               {
-                       vg_error( "Unexpected EOF when parsing level!\n" );
-                       return 0;
-               }
-       }
-       
-       struct cell *row = arraddnptr( map.cells, map.x );
-       int cx = 0;
-       int reg_start = 0, reg_end = 0;
-       
-       for(;;)
-       {
-               if( !*c )
-                       break;
-       
-               if( *c == ';' )
-               {
-                       c ++;
-
-                       // Parse attribs
-                       if( *c != '\n' )
-                       {
-                               while( *c )
-                               {
-                                       if( reg_start < reg_end )
-                                       {
-                                               if( *c >= 'a' && *c <= 'z' )
-                                               {
-                                                       arrpush( map.cells[ map.io[ reg_start ] ].conditions, *c );
-                                               }
-                                               else
-                                               {
-                                                       if( *c == ',' || *c == '\n' )
-                                                       {
-                                                               reg_start ++;
-                                                               
-                                                               if( *c == '\n' )
-                                                                       break;
-                                                       }
-                                                       else
-                                                       {
-                                                               vg_error( "Unkown attrib '%c' (row: %u)\n", *c, map.y );
-                                                               return 0;
-                                                       }
-                                               }
-                                       }
-                                       else
-                                       {
-                                               vg_error( "Over-assigned values (row: %u)\n", map.y );
-                                               return 0;
-                                       }
-                                       
-                                       c ++;
-                               }
-                       }
-                       
-                       if( reg_start != reg_end )
-                       {
-                               vg_error( "Not enough values assigned (row: %u, %u of %u)\n", map.y, reg_start, reg_end );
-                               return 0;
-                       }
-                       
-                       if( cx != map.x )
-                       {
-                               vg_error( "Map row underflow (row: %u, %u<%u)\n", map.y, cx, map.x );
-                               return 0;
-                       }
-                       
-                       row = arraddnptr( map.cells, map.x );
-                       cx = 0;
-                       map.y ++;
-                       reg_end = reg_start = arrlen( map.io );
-               }
-               else
-               {
-                       if( cx == map.x )
-                       {
-                               vg_error( "Map row overflow (row: %u, %u>%u)\n", map.y, cx, map.x );
-                               return 0;
-                       }
-                       
-                       row[ cx ].conditions = NULL;
-               
-                       // Parse the various cell types
-                       if( *c == '+' || *c == '-' )
-                       {
-                               arrpush( map.io, cx + map.y*map.x );
-                               row[ cx ++ ].flags = *c == '+'? CELL_FLAG_INPUT: CELL_FLAG_OUTPUT;
-                               reg_end ++;
-                       }
-                       else if( *c == '#' )
-                       {
-                               row[ cx ++ ].flags = CELL_FLAG_WALL;
-                       }
-                       else
-                       {
-                               row[ cx ++ ].flags = 0x00;
-                       }
-               }
-       
-               c ++;
-       }
-       
-       // Origin top left corner
-       map.origin[0] = -((float)map.x) * 0.5f;
-       map.origin[2] = -((float)map.y) * 0.5f;
-       
-       vg_success( "Map loaded! (%u:%u)\n", map.x, map.y );
-       return 1;
-}
+void vg_register(void){}
+void vg_start(void){}
+void vg_update(void){}
 
-void vg_update(void)
-{
-       // Update camera
-       float ratio = (float)vg_window_y / (float)vg_window_x;
-       float const size = 7.5f;
-       glm_ortho( -size, size, -size*ratio, size*ratio, 0.1f, 100.f, m_projection );
-
-       glm_mat4_identity( m_view );
-       glm_translate_z( m_view, -10.f );
-       glm_rotate_x( m_view, 1.0f, m_view );
-       
-       glm_mat4_mul( m_projection, m_view, vg_pv );
-       
-       // Get mouse ray
-       vec3 ray_origin;
-       vec3 ray_dir;
-       
-       mat4 pv_inverse;
-       vec4 vp = { 0.f, 0.f, vg_window_x, vg_window_y };
-       glm_mat4_inv( vg_pv, pv_inverse );
-       glm_unprojecti( (vec3){ vg_mouse_x, vg_window_y-vg_mouse_y, -1.f }, pv_inverse, vp, ray_dir );
-       glm_unprojecti( (vec3){ vg_mouse_x, vg_window_y-vg_mouse_y, 0.f }, pv_inverse, vp, ray_origin );
-       glm_vec3_sub( ray_dir, ray_origin, ray_dir );
-
-       // Get floor tile intersection  
-       float ray_t = -ray_origin[1] / ray_dir[1];
-
-       vec3 tile_pos;
-       glm_vec3_copy( ray_origin, tile_pos );
-       glm_vec3_muladds( ray_dir, ray_t, tile_pos );
-       glm_vec3_sub( tile_pos, map.origin, tile_pos );
-       
-       int tile_x = floorf( tile_pos[0] );
-       int tile_y = floorf( tile_pos[2] );
-       
-       map.selected = map_tile_at( (int [2]){tile_x, tile_y} );
-       
-       vg_line2( (vec3){0.f,0.f,0.f}, (vec3){0.f,3.f,0.f}, 0xff0000ff, 0xff00ff00 );
-}
-
-GLuint tile_vao;
-GLuint tile_vbo;
-
-void vg_render(void)
+void vg_render(void) 
 {
        glViewport( 0,0, vg_window_x, vg_window_y );
 
-       glEnable( GL_DEPTH_TEST );
-       glClearColor( 0.94f, 0.94f, 0.94f, 1.0f );
+       glDisable( GL_DEPTH_TEST );
+       glClearColor( 0.1f, 0.1f, 0.2f, 1.0f );
        glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
        
-       glBindVertexArray( tile_vao );
-       
-       SHADER_USE( colour_shader );
-       glUniformMatrix4fv( SHADER_UNIFORM( colour_shader, "uPv" ), 1, GL_FALSE, (float *)vg_pv );
-       
-       for( int y = 0; y < map.y; y ++ )
-       {
-               for( int x = 0; x < map.x; x ++ )
-               {
-                       glm_mat4_identity( m_mdl );
-                       glm_translate( m_mdl, 
-                               (vec3){ 
-                                       map.origin[0] + (float)x + 0.5f,
-                                       0.f, 
-                                       map.origin[2] + (float)y + 0.5f
-                               } 
-                       );
-                       glUniformMatrix4fv( SHADER_UNIFORM( colour_shader, "uMdl" ), 1, GL_FALSE, (float *)m_mdl );
-                       
-                       struct cell *cell = &map.cells[ y*map.x+x ];
-                       
-                       if( map.selected != cell )
-                       {
-                               if( cell->flags & CELL_FLAG_INPUT )
-                                       glUniform4f( SHADER_UNIFORM( colour_shader, "uColour" ), 0.9f, 0.5f, 0.5f, 1.0f );
-                               else if( cell->flags & CELL_FLAG_OUTPUT )
-                                       glUniform4f( SHADER_UNIFORM( colour_shader, "uColour" ), 0.5f, 0.9f, 0.5f, 1.0f );
-                               else if( cell->flags & CELL_FLAG_WALL )
-                                       glUniform4f( SHADER_UNIFORM( colour_shader, "uColour" ), 0.1f, 0.1f, 0.1f, 1.0f );
-                               else
-                                       glUniform4f( SHADER_UNIFORM( colour_shader, "uColour" ), 0.7f, 0.7f, 0.7f, 1.0f );
-                       }
-                       else
-                       {
-                               float flash = sinf( vg_time*2.5f ) * 0.25f + 0.75f;
-                               glUniform4f( SHADER_UNIFORM( colour_shader, "uColour" ), flash,flash,flash, 1.0f );
-                       }
-                       
-                       glDrawArrays( GL_TRIANGLES, 0, 6 );
-               }
-       }
+       // Rest of drawing code...
 }
 
-void vg_start(void)
-{
-       SHADER_INIT( colour_shader );
-       
-       glGenVertexArrays( 1, &tile_vao );
-       glGenBuffers( 1, &tile_vbo );
-       
-       float quad_mesh[] =
-       {
-               -0.5f, 0.f, -0.5f,
-               -0.5f, 0.f, 0.5f,
-                0.5f, 0.f, 0.5f,
-               -0.5f, 0.f, -0.5f,
-                0.5f, 0.f, 0.5f,
-                0.5f, 0.f, -0.5f
-       };
-       
-       glBindVertexArray( tile_vao );
-       glBindBuffer( GL_ARRAY_BUFFER, tile_vbo );
-       glBufferData
-       (
-               GL_ARRAY_BUFFER,
-               sizeof( quad_mesh ),
-               quad_mesh,
-               GL_STATIC_DRAW
-       );
-       
-       glVertexAttribPointer( 0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)0 );
-       glEnableVertexAttribArray( 0 );
-       
-       VG_CHECK_GL();
-       
-       map_load
-       ( 
-               "#####-#####;aa\n"
-               "#         #;\n"
-               "#         #;\n"
-               "#         -;bb\n"
-               "#         #;\n"
-               "#         #;\n"
-               "#####+#####;abab\n"
-       );
-}
-
-void vg_free(void)
-{
-       map_free();
-}
-
-void vg_ui(void)
-{
-       
-}
+void vg_ui(void){}
+void vg_free(void){}