/// this will render the "cam" cameraData to the "dest" renderer.
// returns 0 on successful rendering.
// returns 1 if the dest pointer is NULL.
// returns 2 if the cam pointer is NULL.
// returns 3 if cam->target is NULL.
short camera_render(SDL_Renderer *dest, struct cameraData *cam){
// check to see if dest is invalid
if(dest == NULL){
//report the error
error("camera_render() was sent an invalid renderer. dest = NULL");
return 1;
}
// check to see if cam is invalid
if(cam == NULL){
//report the error
error("camera_render() was sent an invalid cam value. cam = NULL");
return 2;
}
if(cam->target == NULL){
error("camera_render() was sent a valid camera with an invalid target blockData pointer. cam->target = NULL");
return 3;
}
/* OLD PRINTING CODE
// i and j index into the surface pixel array.
// iElevation and jElevation index into the blockData's elevation array.
int i, j, iElevation, jElevation;
// these store the constant scaling factors used to scale the i and j variables into the iElevation and jElevation variables.
float iScale = cam->scale*BLOCK_WIDTH /(float)dest->w;
float jScale = cam->scale*BLOCK_HEIGHT/(float)dest->h;
// calculate the color for every pixel on the destination surface
for(i=0; i<dest->w; i++){
for(j=0; j<dest->h; j++){
// calculate the x and y indexes for the elevation array
iElevation = (int)(cam->x + i*iScale);
jElevation = (int)(cam->y + j*jScale);
// make sure the elevation index is in between
if(iElevation>=0 && iElevation<BLOCK_WIDTH && jElevation >= 0 && jElevation < BLOCK_HEIGHT){
set_pixel(dest, i, j, (0xff000000|(int)(cam->target->elevation[iElevation][jElevation]))&(0xff00f000) );
}
}
}
*/
// if the target block has not been rendered, render it now.
if(cam->target->texture == NULL || cam->target->renderMe)
block_render(cam->target, dest);
SDL_RenderCopy(dest, cam->target->texture, NULL, NULL);
// successful print.
return 0;
}
static void render(GContext *ctx) {
#ifdef BENCHMARK
uint16_t start = time_ms(NULL, NULL);
#endif
pge_isometric_begin(ctx);
// Tiles
for(int z = 0; z < GRID_DEPTH; z++) {
for(int y = 0; y < GRID_HEIGHT; y++) {
for(int x = 0; x < GRID_WIDTH; x++) {
block_render(s_block_array[vec2i(Vec3(x, y, z))]);
}
}
}
for(int i = 0; i < MAX_CLOUDS; i++) {
cloud_render(s_cloud_array[i]);
}
// Selection
switch(s_input_mode) {
case MODE_X:
pge_isometric_draw_rect(Vec3(0, s_cursor.y * BLOCK_SIZE, (s_cursor.z + 1) * BLOCK_SIZE), GSize(GRID_WIDTH * BLOCK_SIZE, BLOCK_SIZE), GColorWhite);
break;
case MODE_Y:
pge_isometric_draw_rect(Vec3(s_cursor.x * BLOCK_SIZE, 0, (s_cursor.z + 1) * BLOCK_SIZE), GSize(BLOCK_SIZE, GRID_HEIGHT * BLOCK_SIZE), GColorWhite);
break;
case MODE_Z:
pge_isometric_draw_box(Vec3(s_cursor.x * BLOCK_SIZE, s_cursor.y * BLOCK_SIZE, BLOCK_SIZE), GSize(BLOCK_SIZE, BLOCK_SIZE), (GRID_DEPTH - 1) * BLOCK_SIZE, GColorWhite);
break;
}
pge_isometric_draw_box(Vec3(s_cursor.x * BLOCK_SIZE, s_cursor.y * BLOCK_SIZE, s_cursor.z * BLOCK_SIZE), GSize(BLOCK_SIZE, BLOCK_SIZE), BLOCK_SIZE, GColorRed);
// Box
pge_isometric_draw_box(Vec3(0, 0, 0), GSize(BLOCK_SIZE * GRID_WIDTH, BLOCK_SIZE * GRID_HEIGHT), SKY_HEIGHT, GColorLightGray);
pge_isometric_finish(ctx);
#ifdef BENCHMARK
uint16_t finish = time_ms(NULL, NULL);
APP_LOG(APP_LOG_LEVEL_INFO, "Frame time: %d ms", (int)finish - start);
#endif
}