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100 lines
3.0 KiB
C++
100 lines
3.0 KiB
C++
#include <stdio.h>
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#include "gfx_es2/draw_buffer.h"
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#include "gfx/texture_atlas.h"
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#include "input/input_state.h"
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#include "virtual_input.h"
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TouchButton::TouchButton(const Atlas *atlas, int imageIndex, int overlayImageIndex, int button, int rotationAngle, bool mirror_h)
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: atlas_(atlas), imageIndex_(imageIndex), overlayImageIndex_(overlayImageIndex), button_(button), mirror_h_(mirror_h)
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{
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memset(pointerDown, 0, sizeof(pointerDown));
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w_ = atlas_->images[imageIndex_].w;
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h_ = atlas_->images[imageIndex_].h;
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rotationAngle_ = (float)rotationAngle * 3.1415927 / 180.0f;
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isDown_ = false;
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}
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void TouchButton::update(InputState &input_state)
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{
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isDown_ = false;
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for (int i = 0; i < MAX_POINTERS; i++) {
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if (input_state.pointer_down[i] && isInside(input_state.pointer_x[i], input_state.pointer_y[i]))
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isDown_ = true;
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}
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if (isDown_) {
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input_state.pad_buttons |= button_;
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} else {
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input_state.pad_buttons &= ~button_;
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}
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}
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void TouchButton::draw(DrawBuffer &db, uint32_t color, uint32_t colorOverlay)
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{
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float scale = 1.0f;
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if (isDown_) {
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color |= 0xFF000000;
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colorOverlay |= 0xFF000000;
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scale = 2.0f;
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}
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// We only mirror background
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db.DrawImageRotated(imageIndex_, x_ + w_/2, y_ + h_/2, scale, rotationAngle_, color, mirror_h_);
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if (overlayImageIndex_ != -1)
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db.DrawImageRotated(overlayImageIndex_, x_ + w_/2, y_ + h_/2, scale, rotationAngle_, colorOverlay);
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}
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TouchStick::TouchStick(const Atlas *atlas, int bgImageIndex, int stickImageIndex, int stick)
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: atlas_(atlas), bgImageIndex_(bgImageIndex), stickImageIndex_(stickImageIndex), stick_(stick)
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{
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stick_size_ = atlas_->images[bgImageIndex].w / 3.5f;
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memset(dragging_, 0, sizeof(dragging_));
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memset(lastPointerDown_, 0, sizeof(lastPointerDown_));
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}
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void TouchStick::update(InputState &input_state)
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{
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float inv_stick_size = 1.0f / stick_size_;
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for (int i = 0; i < MAX_POINTERS; i++) {
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if (input_state.pointer_down[i]) {
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float dx = (input_state.pointer_x[i] - stick_x_) * inv_stick_size;
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float dy = (input_state.pointer_y[i] - stick_y_) * inv_stick_size;
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// Ignore outside box
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if (!dragging_[i] && (fabsf(dx) > 1.4f || fabsf(dy) > 1.4f))
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goto skip;
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if (!lastPointerDown_[i] && (fabsf(dx) < 1.4f && fabsf(dy) < 1.4f))
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{
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dragging_[i] = true;
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}
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if (!dragging_[i])
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goto skip;
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// Clamp to a circle
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float len = sqrtf(dx * dx + dy * dy);
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if (len > 1.0f) {
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dx /= len;
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dy /= len;
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}
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stick_delta_x_ = dx;
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stick_delta_y_ = dy;
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if (stick_ == 0) {
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input_state.pad_lstick_x = dx;
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input_state.pad_lstick_y = -dy;
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} else if (stick_ == 1) {
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input_state.pad_rstick_x = dx;
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input_state.pad_rstick_y = -dy;
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}
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} else {
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dragging_[i] = false;
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}
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skip:
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lastPointerDown_[i] = input_state.pointer_down[i];
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}
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}
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void TouchStick::draw(DrawBuffer &db, uint32_t color)
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{
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if (bgImageIndex_ != -1)
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db.DrawImage(bgImageIndex_, stick_x_, stick_y_, 1.0f, color, ALIGN_CENTER);
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db.DrawImage(stickImageIndex_, stick_x_ + stick_delta_x_ * stick_size_, stick_y_ + stick_delta_y_ * stick_size_, 1.0f, color, ALIGN_CENTER);
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}
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