diff options
Diffstat (limited to 'sword2/layers.cpp')
| -rw-r--r-- | sword2/layers.cpp | 291 |
1 files changed, 125 insertions, 166 deletions
diff --git a/sword2/layers.cpp b/sword2/layers.cpp index 9dfa9ad121..187f78c480 100644 --- a/sword2/layers.cpp +++ b/sword2/layers.cpp @@ -17,55 +17,44 @@ * $Header$ */ -//------------------------------------------------------------------------------------ -//high level layer initialising +// high level layer initialising -//the system supports: -// 1 optional background parallax layer -// 1 not optional normal backdrop layer -// 3 normal sorted layers -// up to 2 foreground parallax layers - -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> +// the system supports: +// 1 optional background parallax layer +// 1 not optional normal backdrop layer +// 3 normal sorted layers +// up to 2 foreground parallax layers #include "stdafx.h" -#include "driver/driver96.h" #include "build_display.h" -#include "console.h" #include "debug.h" #include "header.h" #include "layers.h" -#include "memory.h" -#include "object.h" #include "protocol.h" #include "resman.h" #include "sound.h" // (James22july97) for Clear_fx_queue() called from FN_init_background() -//------------------------------------------------------------------------------------ +// this_screen describes the current back buffer and its in-game scroll +// positions, etc. +screen_info this_screen; -screen_info this_screen; //this_screen describes the current back buffer and its in-game scroll positions, etc. -//------------------------------------------------------------------------------------ -int32 FN_init_background(int32 *params) //Tony11Sept96 -{ -//param 0 res id of normal background layer - cannot be 0 -//param 1 1 yes 0 no for a new palette -//this screen defines the size of the back buffer +int32 FN_init_background(int32 *params) { // Tony11Sept96 + // param 0 res id of normal background layer - cannot be 0 + // param 1 1 yes 0 no for a new palette + // this screen defines the size of the back buffer _multiScreenHeader *screenLayerTable; // James 06feb97 - _screenHeader *screen_head; - _layerHeader *layer; - _spriteInfo spriteInfo; - uint32 j; - uint8 *file; - uint32 rv; - + _screenHeader *screen_head; + _layerHeader *layer; + _spriteInfo spriteInfo; + uint32 j; + uint8 *file; + uint32 rv; +#ifdef _SWORD2_DEBUG //-------------------------------------- // Write to walkthrough file (zebug0.txt) - #ifdef _SWORD2_DEBUG Zdebug(0,"====================================="); Zdebug(0,"CHANGED TO LOCATION \"%s\"", FetchObjectName(*params)); Zdebug(0,"====================================="); @@ -74,222 +63,192 @@ int32 FN_init_background(int32 *params) //Tony11Sept96 Zdebug("====================================="); Zdebug("CHANGED TO LOCATION \"%s\"", FetchObjectName(*params)); Zdebug("====================================="); - #endif //-------------------------------------- +#endif - Clear_fx_queue(); // stops all fx & clears the queue (James22july97) - + // stop all fx & clears the queue (James22july97) + Clear_fx_queue(); #ifdef _SWORD2_DEBUG Zdebug("FN_init_background(%d)", *params); - if (!*params) - { - Con_fatal_error("ERROR: FN_set_background cannot have 0 for background layer id! (%s line=%u)",__FILE__,__LINE__); + if (!*params) { + Con_fatal_error("ERROR: FN_set_background cannot have 0 for background layer id! (%s line=%u)", __FILE__, __LINE__); } -#endif // _SWORD2_DEBUG +#endif - - //------------------------------------------------------- // if the screen is still fading down then wait for black WaitForFade(); - //------------------------------------------------------- - - if (this_screen.mask_flag) // if last screen was using a shading mask (see below) (James 08apr97) - { + // if last screen was using a shading mask (see below) (James 08apr97) + if (this_screen.mask_flag) { rv = CloseLightMask(); - if (rv) ExitWithReport("Driver Error %.8x [%s line %u]", rv, __FILE__, __LINE__); } - //-------------------------------------------------------- // New stuff for faster screen drivers (James 06feb97) - if (this_screen.background_layer_id) // for drivers: close the previous screen if one is open + // for drivers: close the previous screen if one is open + if (this_screen.background_layer_id) CloseBackgroundLayer(); - //-------------------------------------------------------- - + this_screen.background_layer_id = *params; // set the res id + this_screen.new_palette = *(params + 1); // yes or no - palette is taken from layer file - this_screen.background_layer_id=*params; //set the res id - this_screen.new_palette = *(params+1); //yes or no - palette is taken from layer file + // ok, now read the resource and pull out all the normal sort layer + // info/and set them up at the beginning of the sort list - why do it + // each cycle - -//ok, now read the resource and pull out all the normal sort layer info -//and set them up at the beginning of the sort list - why do it each cycle - - - file = res_man.Res_open(this_screen.background_layer_id); //file points to 1st byte in the layer file + // file points to 1st byte in the layer file + file = res_man.Res_open(this_screen.background_layer_id); screen_head = FetchScreenHeader(file); - this_screen.number_of_layers= screen_head->noLayers; //set number of special sort layers + //set number of special sort layers + this_screen.number_of_layers = screen_head->noLayers; this_screen.screen_wide = screen_head->width; this_screen.screen_deep = screen_head->height; Zdebug("res test layers=%d width=%d depth=%d", screen_head->noLayers, screen_head->width, screen_head->height); - SetLocationMetrics(screen_head->width, screen_head->height); //initialise the driver back buffer - + //initialise the driver back buffer + SetLocationMetrics(screen_head->width, screen_head->height); - if (screen_head->noLayers) - for (j=0;j<screen_head->noLayers;j++) - { - layer=FetchLayerHeader(file,j); //get layer header for layer j + if (screen_head->noLayers) { + for (j = 0; j < screen_head->noLayers; j++) { + // get layer header for layer j + layer = FetchLayerHeader(file, j); -// add into the sort list + // add into the sort list - sort_list[j].sort_y = layer->y+layer->height; //need this for sorting - but leave the rest blank, we'll take from the header at print time - sort_list[j].layer_number=j+1; //signifies a layer + // need this for sorting - but leave the rest blank, + // we'll take from the header at print time + sort_list[j].sort_y = layer->y + layer->height; + // signifies a layer + sort_list[j].layer_number = j + 1; Zdebug("init layer %d", j); } + } + // using the screen size setup the scrolling variables + // if layer is larger than physical screen + if (screen_head->width > screenWide || screen_head->height > screenDeep) { + // switch on scrolling (2 means first time on screen) + this_screen.scroll_flag = 2; -//using the screen size setup the scrolling variables - - if( ((screen_head->width) > screenWide) || (screen_head->height>screenDeep) ) // if layer is larger than physical screen - { - this_screen.scroll_flag = 2; //switch on scrolling (2 means first time on screen) + // note, if we've already set the player up then we could do + // the initial scroll set here -// note, if we've already set the player up then we could do the initial scroll set here + // reset scroll offsets - this_screen.scroll_offset_x = 0; //reset scroll offsets + this_screen.scroll_offset_x = 0; this_screen.scroll_offset_y = 0; -// calc max allowed offsets (to prevent scrolling off edge) - MOVE TO NEW_SCREEN in GTM_CORE.C !! - this_screen.max_scroll_offset_x = screen_head->width-screenWide; // NB. min scroll offsets are both zero - this_screen.max_scroll_offset_y = screen_head->height-(screenDeep-(RDMENU_MENUDEEP*2)); // 'screenDeep' includes the menu's, so take away 80 pixels - } - else //layer fits on physical screen - scrolling not required - { - this_screen.scroll_flag = 0; //switch off scrolling - this_screen.scroll_offset_x = 0; //reset scroll offsets + // calc max allowed offsets (to prevent scrolling off edge) - + // MOVE TO NEW_SCREEN in GTM_CORE.C !! + // NB. min scroll offsets are both zero + this_screen.max_scroll_offset_x = screen_head->width-screenWide; + // 'screenDeep' includes the menu's, so take away 80 pixels + this_screen.max_scroll_offset_y = screen_head->height - (screenDeep - (RDMENU_MENUDEEP * 2)); + } else { + // layer fits on physical screen - scrolling not required + this_screen.scroll_flag = 0; // switch off scrolling + this_screen.scroll_offset_x = 0; // reset scroll offsets this_screen.scroll_offset_y = 0; } - ResetRenderEngine(); //no inter-cycle scrol between new screens (see setScrollTarget in build display) + // no inter-cycle scroll between new screens (see setScrollTarget in + // build display) + ResetRenderEngine(); // these are the physical screen coords where the system // will try to maintain George's actual feet coords - this_screen.feet_x=320; - this_screen.feet_y=340; + this_screen.feet_x = 320; + this_screen.feet_y = 340; - - //---------------------------------------------------- // shading mask screenLayerTable = (_multiScreenHeader *) ((uint8 *) file + sizeof(_standardHeader)); - if (screenLayerTable->maskOffset) - { - spriteInfo.x = 0; - spriteInfo.y = 0; - spriteInfo.w = screen_head->width; - spriteInfo.h = screen_head->height; - spriteInfo.scale = 0; - spriteInfo.scaledWidth = 0; - spriteInfo.scaledHeight = 0; - spriteInfo.type = 0; - spriteInfo.blend = 0; - spriteInfo.data = FetchShadingMask(file); - spriteInfo.colourTable = 0; - - rv = OpenLightMask( &spriteInfo ); + if (screenLayerTable->maskOffset) { + spriteInfo.x = 0; + spriteInfo.y = 0; + spriteInfo.w = screen_head->width; + spriteInfo.h = screen_head->height; + spriteInfo.scale = 0; + spriteInfo.scaledWidth = 0; + spriteInfo.scaledHeight = 0; + spriteInfo.type = 0; + spriteInfo.blend = 0; + spriteInfo.data = FetchShadingMask(file); + spriteInfo.colourTable = 0; + + rv = OpenLightMask(&spriteInfo); if (rv) ExitWithReport("Driver Error %.8x [%s line %u]", rv, __FILE__, __LINE__); - this_screen.mask_flag=1; // so we know to close it later! (see above) + // so we know to close it later! (see above) + this_screen.mask_flag = 1; + } else { + // no need to close a mask later + this_screen.mask_flag = 0; } - else - this_screen.mask_flag=0; // no need to close a mask later - - //---------------------------------------------------- - res_man.Res_close(this_screen.background_layer_id); //close the screen file + // close the screen file + res_man.Res_close(this_screen.background_layer_id); SetUpBackgroundLayers(); - Zdebug("end init"); - return(1); + return 1; } -//------------------------------------------------------------------------------------ + // called from FN_init_background & also from control panel -void SetUpBackgroundLayers(void) // James(13jun97) -{ +void SetUpBackgroundLayers(void) { // James(13jun97) _multiScreenHeader *screenLayerTable; // James 06feb97 - _screenHeader *screen_head; - uint8 *file; + _screenHeader *screen_head; + uint8 *file; + int i; - - if (this_screen.background_layer_id) // if we actually have a screen to initialise (in case called from control panel) - { - //------------------------------ + // if we actually have a screen to initialise (in case not called from + // control panel) + if (this_screen.background_layer_id) { // open resource & set pointers to headers + // file points to 1st byte in the layer file - file = res_man.Res_open(this_screen.background_layer_id); //file points to 1st byte in the layer file + file = res_man.Res_open(this_screen.background_layer_id); screen_head = FetchScreenHeader(file); screenLayerTable = (_multiScreenHeader *) ((uint8 *) file + sizeof(_standardHeader)); - //------------------------------ - // first background parallax - - if (screenLayerTable->bg_parallax[0]) - InitialiseBackgroundLayer(FetchBackgroundParallaxLayer(file,0)); - else - InitialiseBackgroundLayer(NULL); + // Background parallax layers - //------------------------------ - // second background parallax - - if (screenLayerTable->bg_parallax[1]) - InitialiseBackgroundLayer(FetchBackgroundParallaxLayer(file,1)); - else - InitialiseBackgroundLayer(NULL); + for (i = 0; i < 2; i++) { + if (screenLayerTable->bg_parallax[i]) + InitialiseBackgroundLayer(FetchBackgroundParallaxLayer(file, i)); + else + InitialiseBackgroundLayer(NULL); + } - //------------------------------ - // normal backround layer + // Normal backround layer InitialiseBackgroundLayer(FetchBackgroundLayer(file)); - //------------------------------ - // first foreground parallax + // Foreground parallax layers - if (screenLayerTable->fg_parallax[0]) - InitialiseBackgroundLayer(FetchForegroundParallaxLayer(file,0)); - else - InitialiseBackgroundLayer(NULL); - - //------------------------------ - // second foreground parallax - - if (screenLayerTable->fg_parallax[1]) - InitialiseBackgroundLayer(FetchForegroundParallaxLayer(file,1)); - else - InitialiseBackgroundLayer(NULL); - - //---------------------------------------------------- - - res_man.Res_close(this_screen.background_layer_id); //close the screen file + for (i = 0; i < 2; i++) { + if (screenLayerTable->fg_parallax[i]) + InitialiseBackgroundLayer(FetchForegroundParallaxLayer(file, i)); + else + InitialiseBackgroundLayer(NULL); + } - //---------------------------------------------------- - } - else // no current screen to initialise! (In case called from control panel) - { + // close the screen file + res_man.Res_close(this_screen.background_layer_id); } } - -//------------------------------------------------------------------------------------ -//------------------------------------------------------------------------------------ -//------------------------------------------------------------------------------------ -//------------------------------------------------------------------------------------ -//------------------------------------------------------------------------------------ -//------------------------------------------------------------------------------------ -//------------------------------------------------------------------------------------ |