#define VG_MAX_CONTROLLERS 4
-VG_STATIC float controller_deadzone = 0.05f;
-
-struct
-{
+static float controller_deadzone = 0.05f;
+typedef u32 vg_input_op;
+typedef vg_input_op *vg_input_program;
+
+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 {
+ /* 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,
+
+ /* modes */
+ vg_mode_mul,
+ vg_mode_sub,
+ vg_mode_add,
+ vg_mode_absmax,
+ vg_mode_max,
+
+ /* control */
+ vg_index,
+ vg_end,
+
+ /* math */
+ vg_normalize
+};
+
+struct{
const u8 *sdl_keys;
+ u32 sdl_mouse;
struct vg_controller{
SDL_GameController *handle; /* handle for controller. NULL if unused */
}
static vg_input = { .active_controller_index = -2 };
-VG_STATIC u8 vg_getkey( SDL_Keycode kc )
+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
*/
-VG_STATIC int vg_open_gamecontroller( Sint32 index )
+static int vg_open_gamecontroller( Sint32 index )
{
struct vg_controller *controller = NULL;
int vg_id = 0;
for( u32 i=0; i< SDL_CONTROLLER_AXIS_MAX; i++ )
controller->axises[i] = 0.0f;
- controller->axises[ SDL_CONTROLLER_AXIS_TRIGGERLEFT ] = -1.0f;
- controller->axises[ SDL_CONTROLLER_AXIS_TRIGGERRIGHT ] = -1.0f;
-
if( vg_input.active_controller_index == -2 ){
vg_input.active_controller_index = vg_id;
vg_input.display_input_method = k_input_method_controller;
}
}
-VG_STATIC void vg_input_device_event( SDL_Event *ev )
+static void vg_input_device_event( SDL_Event *ev )
{
if( ev->type == SDL_CONTROLLERDEVICEADDED ){
int is_controller = SDL_IsGameController( ev->cdevice.which );
}
}
-VG_STATIC void vg_input_controller_event( SDL_Event *ev )
+static void vg_input_controller_event( SDL_Event *ev )
{
if( ev->type == SDL_CONTROLLERAXISMOTION ){
for( int i=0; i<VG_MAX_CONTROLLERS; i++ ){
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;
}
}
-VG_STATIC void vg_process_inputs(void)
+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 */
}
/* check for giving mouse priority */
- if( SDL_GetMouseState(NULL,NULL) &
+ if( vg_input.sdl_mouse &
(SDL_BUTTON(SDL_BUTTON_LEFT)|SDL_BUTTON(SDL_BUTTON_RIGHT)|
SDL_BUTTON(SDL_BUTTON_MIDDLE)) )
{
}
}
-VG_STATIC void async_vg_input_init( void *payload, u32 size )
+static void async_vg_input_init( void *payload, u32 size )
{
VG_VAR_F32( controller_deadzone, flags=VG_VAR_PERSISTENT );
}
}
-VG_STATIC void vg_input_init(void)
+static void vg_input_init(void)
{
vg_async_call( async_vg_input_init, NULL, 0 );
}
-VG_STATIC void vg_input_free(void)
+static void vg_input_free(void)
{
for( int i=0; i<VG_MAX_CONTROLLERS; i++ ){
struct vg_controller *controller = &vg_input.controllers[i];
}
}
+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
projects / vg.git / blobdiff