-/* Copyright (C) 2021-2022 Harry Godden (hgn) - All Rights Reserved */
-#ifndef VG_INPUT_H
-#define VG_INPUT_H
-
-#include "common.h"
-#include "vg/vg_loader.h"
+#pragma once
+/* Copyright (C) 2021-2024 Harry Godden (hgn) - All Rights Reserved */
#define VG_MAX_CONTROLLERS 4
-static float controller_deadzone = 0.05f;
+#include "vg_platform.h"
+
+extern f32 controller_deadzone;
+
typedef u32 vg_input_op;
typedef vg_input_op *vg_input_program;
-enum vg_input_type {
+enum vg_input_type
+{
k_vg_input_type_button_u8,
k_vg_input_type_axis_f32,
k_vg_input_type_joy_v2f
};
-enum vg_input_op {
+enum vg_input_op
+{
/* data source */
vg_keyboard,
vg_mouse,
vg_joy_button,
vg_joy_axis,
-
- /* hacky constants */
- vg_0_0f,
- vg_0_5f,
- vg_1_0f,
- vg_2_0f,
+ vg_joy_ls,
+ vg_joy_rs,
/* modes */
vg_mode_mul,
/* control */
vg_index,
vg_end,
+ vg_gui_visible,
/* math */
vg_normalize
};
-struct{
+struct vg_input
+{
const u8 *sdl_keys;
u32 sdl_mouse;
+ f32 hidden_mouse_travel;
struct vg_controller{
SDL_GameController *handle; /* handle for controller. NULL if unused */
display_input_method;
SDL_GameControllerType display_input_type;
}
-static vg_input = { .active_controller_index = -2 };
-
-static u8 vg_getkey( SDL_Keycode kc )
-{
- SDL_Scancode sc = SDL_GetScancodeFromKey( kc );
- return vg_input.sdl_keys[sc];
-}
-
-/*
- * takes SDL device index, and tries to open that on any free channel
- */
-static int vg_open_gamecontroller( Sint32 index )
-{
- struct vg_controller *controller = NULL;
- int vg_id = 0;
- const char *name = SDL_GameControllerNameForIndex( index );
- SDL_JoystickID instance_id = SDL_JoystickGetDeviceInstanceID( index );
-
- if( instance_id == -1 ){
- vg_error( ". Invalid device index (vg_open_gamecontroller)\n" );
- return -1;
- }
-
- for( int j=0; j<VG_MAX_CONTROLLERS; j++ ){
- struct vg_controller *esta = &vg_input.controllers[j];
-
- if( esta->handle ){
- if( esta->instance_id == instance_id ){
- vg_warn( " . SDL_JoystickID[%d] is already in open at index #%d\n",
- esta->instance_id, j );
- return -1;
- }
- }
- else{
- if( !controller ){
- controller = &vg_input.controllers[j];
- vg_id = j;
- }
- }
- }
-
- if( controller ){
- controller->handle = SDL_GameControllerOpen( index );
- controller->instance_id = instance_id;
-
- if( controller->handle ){
- vg_success(
- " . opened SDL_JoystickID[%d] as controller '%s' at index #%d\n",
- instance_id, name, vg_id );
-
- for( u32 i=0; i< SDL_CONTROLLER_BUTTON_MAX; i++ )
- controller->buttons[i] = 0;
-
- for( u32 i=0; i< SDL_CONTROLLER_AXIS_MAX; i++ )
- controller->axises[i] = 0.0f;
-
- if( vg_input.active_controller_index == -2 ){
- vg_input.active_controller_index = vg_id;
- vg_input.display_input_method = k_input_method_controller;
- vg_input.display_input_type =
- SDL_GameControllerGetType( controller->handle );
- }
-
- return vg_id;
- }
- else{
- vg_error( ". Failed to attach game controller '%s'. Reason: %s\n",
- name, SDL_GetError() );
- return -1;
- }
- }
- else{
- vg_error( ". Too many controllers open! ignoring '%s'\n", name );
- return -1;
- }
-}
-
-static void vg_input_device_event( SDL_Event *ev )
-{
- if( ev->type == SDL_CONTROLLERDEVICEADDED ){
- int is_controller = SDL_IsGameController( ev->cdevice.which );
- const char *name = SDL_JoystickNameForIndex( ev->cdevice.which );
-
- Sint32 index = ev->cdevice.which;
- SDL_JoystickID instance_id = SDL_JoystickGetDeviceInstanceID( index );
- vg_info( "SDL_CONTROLLERDEVICEADDED | device index: %d, name: '%s'\n",
- index, name );
-
- if( is_controller ){
- vg_open_gamecontroller( index );
- }
- }
- else if( ev->type == SDL_CONTROLLERDEVICEREMOVED ){
- vg_info( "SDL_CONTROLLERDEVICEREMOVED | instance_id: %d\n",
- ev->cdevice.which );
-
- for( int i=0; i<VG_MAX_CONTROLLERS; i++ ){
- struct vg_controller *controller = &vg_input.controllers[i];
-
- if( controller->handle ){
- if( controller->instance_id == ev->cdevice.which ){
- vg_info( " . closing controller at index #%d\n", i );
- SDL_GameControllerClose( controller->handle );
- controller->handle = NULL;
- controller->instance_id = -1;
-
- if( vg_input.active_controller_index == i ){
- vg_input.active_controller_index = -1;
- vg_input.display_input_method = k_input_method_kbm;
- vg_info( "display_input: k_input_method_kbm\n" );
- }
- break;
- }
- }
- }
- }
-}
-
-static void vg_input_controller_event( SDL_Event *ev )
-{
- if( ev->type == SDL_CONTROLLERAXISMOTION ){
- for( int i=0; i<VG_MAX_CONTROLLERS; i++ ){
- struct vg_controller *esta = &vg_input.controllers[i];
-
- if( ev->caxis.which == esta->instance_id ){
- float value = (float)ev->caxis.value / 32767.0f;
-
- if( ev->caxis.axis == SDL_CONTROLLER_AXIS_LEFTX ||
- ev->caxis.axis == SDL_CONTROLLER_AXIS_LEFTY ||
- ev->caxis.axis == SDL_CONTROLLER_AXIS_RIGHTX ||
- ev->caxis.axis == SDL_CONTROLLER_AXIS_RIGHTY )
- {
- float deadz = vg_clampf( controller_deadzone, 0.0f, 0.999f ),
- high = vg_maxf( 0.0f, fabsf(value) - deadz );
-
- value = vg_signf(value) * (high / (1.0f-deadz));
- }
- else if( ev->caxis.axis == SDL_CONTROLLER_AXIS_TRIGGERLEFT ||
- ev->caxis.axis == SDL_CONTROLLER_AXIS_TRIGGERRIGHT ){
- value = 0.5f + value*0.5f;
- }
-
- esta->axises[ ev->caxis.axis ] = value;
- break;
- }
- }
- }
- else if( ev->type == SDL_CONTROLLERBUTTONDOWN ){
- struct vg_controller *active = NULL;
-
- if( vg_input.active_controller_index >= 0 )
- active = &vg_input.controllers[vg_input.active_controller_index];
-
- if( !active || (ev->cbutton.which != active->instance_id) ){
- active = NULL;
- vg_input.active_controller_index = -1;
- vg_input.display_input_method = k_input_method_kbm;
-
- for( int i=0; i<VG_MAX_CONTROLLERS; i++ ){
- if( vg_input.controllers[i].instance_id == ev->cbutton.which ){
- active = &vg_input.controllers[i];
- vg_input.active_controller_index = i;
- vg_input.display_input_type =
- SDL_GameControllerGetType(active->handle);
- break;
- }
- }
-
- if( active ){
- vg_info( "Switching active controller index to #%d\n",
- vg_input.active_controller_index );
- }
- else{
- vg_error( "Input out of range (SDL_JoystickID#%d)\n",
- ev->cbutton.which );
- }
- }
-
- if( active ){
- if( vg_input.display_input_method != k_input_method_controller ){
- vg_input.display_input_method = k_input_method_controller;
- vg_info( "display_input: k_input_method_controller\n" );
- }
- active->buttons[ ev->cbutton.button ] = 1;
- }
- }
- else if( ev->type == SDL_CONTROLLERBUTTONUP ){
- for( int i=0; i<VG_MAX_CONTROLLERS; i++ ){
- struct vg_controller *esta = &vg_input.controllers[i];
-
- if( ev->cbutton.which == esta->instance_id ){
- esta->buttons[ ev->cbutton.button ] = 0;
- break;
- }
- }
- }
-}
-
-static void vg_process_inputs(void)
-{
- int count;
- vg_input.sdl_keys = SDL_GetKeyboardState( &count );
- vg_input.sdl_mouse = SDL_GetMouseState(NULL,NULL);
-
- if( vg_input.display_input_method != k_input_method_kbm ){
- /* check for giving keyboard priority */
- for( int i=0; i<count; i++ ){
- if( vg_input.sdl_keys[i] ){
- vg_input.display_input_method = k_input_method_kbm;
- vg_info( "display_input: k_input_method_kbm (keyboard %d)\n", i );
- break;
- }
- }
-
- /* check for giving mouse priority */
- if( vg_input.sdl_mouse &
- (SDL_BUTTON(SDL_BUTTON_LEFT)|SDL_BUTTON(SDL_BUTTON_RIGHT)|
- SDL_BUTTON(SDL_BUTTON_MIDDLE)) )
- {
- vg_input.display_input_method = k_input_method_kbm;
- vg_info( "display_input: k_input_method_kbm (mouse)\n" );
- }
- }
-}
-
-static void async_vg_input_init( void *payload, u32 size )
-{
- VG_VAR_F32( controller_deadzone, flags=VG_VAR_PERSISTENT );
-
- vg_info( "Checking for controllers\n" );
- SDL_GameControllerAddMappingsFromFile( "gamecontrollerdb.txt" );
-
- int joy_count = SDL_NumJoysticks();
- for( int i=0; i<joy_count; i++ ) {
- const char *name = SDL_JoystickNameForIndex( i );
- int is_controller = SDL_IsGameController(i);
-
- vg_info( "%d: %s [controller: %d]\n", i, name, is_controller );
-
- if( is_controller ){
- vg_open_gamecontroller( i );
- }
- }
-}
-
-static void vg_input_init(void)
-{
- vg_async_call( async_vg_input_init, NULL, 0 );
-}
-
-static void vg_input_free(void)
-{
- for( int i=0; i<VG_MAX_CONTROLLERS; i++ ){
- struct vg_controller *controller = &vg_input.controllers[i];
-
- if( controller->handle ){
- SDL_GameControllerClose( controller->handle );
- controller->handle = NULL;
- }
- }
-}
-
-struct vg_controller *vg_active_controller(void){
- if( vg_input.active_controller_index >= 0 )
- return &vg_input.controllers[vg_input.active_controller_index];
- else
- return NULL;
-}
-
-static u8 vg_controller_button( SDL_GameControllerButton button ){
- struct vg_controller *c = vg_active_controller();
- if( c ) return c->buttons[ button ];
- else return 0;
-}
-
-static f32 vg_controller_axis( SDL_GameControllerAxis axis ){
- struct vg_controller *c = vg_active_controller();
- if( c ) return c->axises[ axis ];
- else return 0;
-}
-
-static void vg_input_apply_to_u8( vg_input_op mode, u8 data, u8 *inout_result ){
- if ( mode == vg_mode_absmax ) *inout_result |= data;
- else if( mode == vg_mode_mul ) *inout_result &= data;
- else vg_fatal_error( "mode not supported for destination type (%d)", mode );
-}
-
-static void vg_input_apply_to_f32( vg_input_op mode, f32 data,
- f32 *inout_result ){
- if ( mode == vg_mode_absmax ){
- if( fabsf(data) > fabsf(*inout_result) )
- *inout_result = data;
- }
- else if( mode == vg_mode_max ) *inout_result = vg_maxf(*inout_result,data);
- else if( mode == vg_mode_mul ) *inout_result *= (f32)data;
- else if( mode == vg_mode_sub ) *inout_result -= (f32)data;
- else if( mode == vg_mode_add ) *inout_result += (f32)data;
- else vg_fatal_error( "mode not supported for destination type (%d)", mode );
-}
-
-static void vg_exec_input_program( enum vg_input_type type, vg_input_op *ops,
- void *out_result ){
- u8 *out_button = NULL;
- f32 *out_joy = NULL;
-
- if( type == k_vg_input_type_button_u8 ){
- out_button = out_result;
- *out_button = 0;
- }
- else if( type == k_vg_input_type_axis_f32 ){
- out_joy = out_result;
- out_joy[0] = 0.0f;
- }
- else if( type == k_vg_input_type_joy_v2f ){
- out_joy = out_result;
- out_joy[0] = 0.0f;
- out_joy[1] = 0.0f;
- }
-
- /* computer state */
- vg_input_op mode = vg_mode_absmax;
- u32 pc = 0, index = 0;
-
-next_code:;
- vg_input_op op = ops[ pc ++ ];
-
- if( (op >= vg_mode_mul) && (op <= vg_mode_max) ){
- mode = op;
- }
- else if( (op == vg_keyboard) || (op == vg_mouse) || (op == vg_joy_button) ){
- u8 state = 0;
-
- if( op == vg_keyboard )
- state = vg_getkey(ops[pc ++]);
- else if( op == vg_mouse )
- state = (vg_input.sdl_mouse & SDL_BUTTON(ops[pc ++]))?1:0;
- else
- state = vg_controller_button(ops[pc ++]);
-
- if( type == k_vg_input_type_button_u8 )
- vg_input_apply_to_u8( mode, state, out_button );
- else
- vg_input_apply_to_f32( mode, (f32)state, &out_joy[index] );
- }
- else if( op == vg_joy_axis ){
- f32 state = vg_controller_axis( ops[pc ++] );
- if( type == k_vg_input_type_button_u8 )
- vg_input_apply_to_u8( mode, state>0.5f?1:0, out_button );
- else
- vg_input_apply_to_f32( mode, state, &out_joy[index] );
- }
- else if( (op >= vg_0_0f) && (op <= vg_2_0f) ){
- f32 value = (f32)(op - vg_0_5f) * 0.5f;
- vg_input_apply_to_f32( mode, value, &out_joy[index] );
- }
- else if( op == vg_index ){
- index = ops[pc ++];
- }
- else if( op == vg_end ){
- return;
- }
- else if( op == vg_normalize ){
- v2_normalize( out_joy );
- }
- else {
- vg_fatal_error( "unknown op\n" );
- }
-
- goto next_code;
-}
-
-#endif
+extern vg_input;
+
+u8 vg_getkey( SDL_Keycode kc );
+void vg_process_inputs(void);
+void async_vg_input_init( void *payload, u32 size );
+void vg_input_init(void);
+void vg_input_free(void);
+struct vg_controller *vg_active_controller(void);
+u8 vg_controller_button( SDL_GameControllerButton button );
+f32 vg_controller_axis( SDL_GameControllerAxis axis );
+void vg_exec_input_program( enum vg_input_type type, vg_input_op *ops,
+ void *out_result );
+const char *controller_button_str( SDL_GameControllerButton button );
+void vg_keyboard_key_string( vg_str *str, u32 key, int special_glyphs );
+void vg_mouse_button_string( vg_str *str, u32 button, int special_glyphs );
+void vg_joy_axis_string( vg_str *str, SDL_GameControllerAxis axis,
+ int special_glyphs );
+void vg_joy_string( vg_str *str, vg_input_op op, int special_glyphs );
+void vg_input_string( vg_str *str, vg_input_op *ops, int glyphs );
+void vg_input_device_event( SDL_Event *ev );
+void vg_input_controller_event( SDL_Event *ev );
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