use num_traits::clamp; use crate::common::{Condition, Flag, Rect}; use crate::SharedGameState; use crate::stage::Stage; pub const OFF_X: [isize; 9] = [0, 1, 0, 1, 2, 2, 2, 0, 1]; pub const OFF_Y: [isize; 9] = [0, 0, 1, 1, 0, 1, 2, 2, 2]; pub trait PhysicalEntity { fn x(&self) -> isize; fn y(&self) -> isize; fn vel_x(&self) -> isize; fn vel_y(&self) -> isize; fn size(&self) -> u8; fn hit_bounds(&self) -> &Rect; fn set_x(&mut self, x: isize); fn set_y(&mut self, y: isize); fn set_vel_x(&mut self, x: isize); fn set_vel_y(&mut self, y: isize); fn cond(&mut self) -> &mut Condition; fn flags(&mut self) -> &mut Flag; fn is_player(&self) -> bool; fn ignore_tile_44(&self) -> bool { true } fn judge_hit_block(&mut self, state: &SharedGameState, x: isize, y: isize) { // left wall if (self.y() - self.hit_bounds().top as isize) < (y * 16 + 4) * 0x200 && self.y() + self.hit_bounds().bottom as isize > (y * 16 - 4) * 0x200 && (self.x() - self.hit_bounds().right as isize) < (x * 16 + 8) * 0x200 && (self.x() - self.hit_bounds().right as isize) > x * 16 * 0x200 { self.set_x(((x * 16 + 8) * 0x200) + self.hit_bounds().right as isize); if self.is_player() { if self.vel_x() < -0x180 { self.set_vel_x(-0x180); } if !state.key_state.left() && self.vel_x() < 0 { self.set_vel_x(0); } } self.flags().set_hit_left_wall(true); } // right wall if (self.y() - self.hit_bounds().top as isize) < (y * 16 + 4) * 0x200 && self.y() + self.hit_bounds().bottom as isize > (y * 16 - 4) * 0x200 && (self.x() + self.hit_bounds().right as isize) > (x * 16 - 8) * 0x200 && (self.x() + self.hit_bounds().right as isize) < x * 16 * 0x200 { self.set_x(((x * 16 - 8) * 0x200) - self.hit_bounds().right as isize); if self.is_player() { if self.vel_x() > 0x180 { self.set_vel_x(0x180); } if !state.key_state.right() && self.vel_x() > 0 { self.set_vel_x(0); } } self.flags().set_hit_right_wall(true); } // ceiling if (self.x() - self.hit_bounds().right as isize) < (x * 16 + 5) * 0x200 && (self.x() + self.hit_bounds().right as isize) > (x * 16 - 5) * 0x200 && (self.y() - self.hit_bounds().top as isize) < (y * 16 + 8) * 0x200 && (self.y() - self.hit_bounds().top as isize) > y * 16 * 0x200 { self.set_y(((y * 16 + 8) * 0x200) + self.hit_bounds().top as isize); if self.is_player() { if !self.cond().hidden() && self.vel_y() < -0x200 { self.flags().set_head_bounced(true); } if self.vel_y() < 0 { self.set_vel_y(0); } } else { self.set_vel_y(0); } self.flags().set_hit_top_wall(true); } // floor if ((self.x() - self.hit_bounds().right as isize) < (x * 16 + 5) * 0x200) && ((self.x() + self.hit_bounds().right as isize) > (x * 16 - 5) * 0x200) && ((self.y() + self.hit_bounds().bottom as isize) > (y * 16 - 8) * 0x200) && ((self.y() + self.hit_bounds().bottom as isize) < y * 16 * 0x200) { self.set_y(((y * 16 - 8) * 0x200) - self.hit_bounds().bottom as isize); if self.is_player() { if self.vel_y() > 0x400 { // PlaySoundObject(23, SOUND_MODE_PLAY); todo } if self.vel_y() > 0 { self.set_vel_y(0); } } else { self.set_vel_y(0); } self.flags().set_hit_bottom_wall(true); } } // upper left slope (bigger half) fn judge_hit_triangle_a(&mut self, x: isize, y: isize) { if self.x() < (x * 16 + 8) * 0x200 && self.x() > (x * 16 - 8) * 0x200 && (self.y() - self.hit_bounds().top as isize) < (y * 16 * 0x200) - (self.x() - x * 16 * 0x200) / 2 + 0x800 && (self.y() + self.hit_bounds().bottom as isize) > (y * 16 - 8) * 0x200 { self.set_y((y * 16 * 0x200) - ((self.x() - x * 16 * 0x200) / 2) + 0x800 + self.hit_bounds().top as isize); if self.is_player() && !self.cond().hidden() && self.vel_y() < -0x200 { self.flags().set_head_bounced(true); } if self.vel_y() < 0 { self.set_vel_y(0); } self.flags().set_hit_top_wall(true); } } // upper left slope (smaller half) fn judge_hit_triangle_b(&mut self, x: isize, y: isize) { if self.x() < (x * 16 + 8) * 0x200 && self.x() > (x * 16 - 8) * 0x200 && (self.y() - self.hit_bounds().top as isize) < (y * 16 * 0x200) - (self.x() - x * 16 * 0x200) / 2 - 0x800 && (self.y() + self.hit_bounds().bottom as isize) > (y * 16 - 8) * 0x200 { self.set_y((y * 16 * 0x200) - ((self.x() - x * 16 * 0x200) / 2) - 0x800 + self.hit_bounds().top as isize); if self.is_player() && !self.cond().hidden() && self.vel_y() < -0x200 { self.flags().set_head_bounced(true); } if self.vel_y() < 0 { self.set_vel_y(0); } self.flags().set_hit_top_wall(true); } } // upper right slope (smaller half) fn judge_hit_triangle_c(&mut self, x: isize, y: isize) { if self.x() < (x * 16 + 8) * 0x200 && self.x() > (x * 16 - 8) * 0x200 && (self.y() - self.hit_bounds().top as isize) < (y * 16 * 0x200) + (self.x() - x * 16 * 0x200) / 2 - 0x800 && (self.y() + self.hit_bounds().bottom as isize) > (y * 16 - 8) * 0x200 { self.set_y((y * 16 * 0x200) + ((self.x() - x * 16 * 0x200) / 2) - 0x800 + self.hit_bounds().top as isize); if self.is_player() && !self.cond().hidden() && self.vel_y() < -0x200 { self.flags().set_head_bounced(true); } if self.vel_y() < 0 { self.set_vel_y(0); } self.flags().set_hit_top_wall(true); } } // upper right slope (bigger half) fn judge_hit_triangle_d(&mut self, x: isize, y: isize) { if (self.x() < (x * 16 + 8) * 0x200) && (self.x() > (x * 16 - 8) * 0x200) && (self.y() - self.hit_bounds().top as isize) < (y * 16 * 0x200) + (self.x() - x * 16 * 0x200) / 2 + 0x800 && (self.y() + self.hit_bounds().bottom as isize) > (y * 16 - 8) * 0x200 { self.set_y((y * 16 * 0x200) + ((self.x() - x * 16 * 0x200) / 2) + 0x800 + self.hit_bounds().top as isize); if self.is_player() && !self.cond().hidden() && self.vel_y() < -0x200 { self.flags().set_head_bounced(true); } if self.vel_y() < 0 { self.set_vel_y(0); } self.flags().set_hit_top_wall(true); } } // lower left half (bigger) fn judge_hit_triangle_e(&mut self, x: isize, y: isize) { self.flags().set_hit_left_bigger_half(true); if (self.x() < (x * 16 + 8) * 0x200) && (self.x() > (x * 16 - 8) * 0x200) && (self.y() + self.hit_bounds().bottom as isize) > (y * 16 * 0x200) + (self.x() - x * 16 * 0x200) / 2 - 0x800 && (self.y() - self.hit_bounds().top as isize) < (y * 16 + 8) * 0x200 { self.set_y((y * 16 * 0x200) + ((self.x() - x * 16 * 0x200) / 2) - 0x800 - self.hit_bounds().bottom as isize); if self.is_player() && self.vel_y() > 0x400 { // PlaySoundObject(23, SOUND_MODE_PLAY); todo } if self.vel_y() > 0 { self.set_vel_y(0); } self.flags().set_hit_left_slope(true); self.flags().set_hit_bottom_wall(true); } } // lower left half (smaller) fn judge_hit_triangle_f(&mut self, x: isize, y: isize) { self.flags().set_hit_left_smaller_half(true); if (self.x() < (x * 16 + 8) * 0x200) && (self.x() > (x * 16 - 8) * 0x200) && (self.y() + self.hit_bounds().bottom as isize) > (y * 16 * 0x200) + (self.x() - x * 16 * 0x200) / 2 + 0x800 && (self.y() - self.hit_bounds().top as isize) < (y * 16 + 8) * 0x200 { self.set_y((y * 16 * 0x200) + ((self.x() - x * 16 * 0x200) / 2) + 0x800 - self.hit_bounds().bottom as isize); if self.is_player() && self.vel_y() > 0x400 { // PlaySoundObject(23, SOUND_MODE_PLAY); todo } if self.vel_y() > 0 { self.set_vel_y(0); } self.flags().set_hit_left_slope(true); self.flags().set_hit_bottom_wall(true); } } // lower right half (smaller) fn judge_hit_triangle_g(&mut self, x: isize, y: isize) { self.flags().set_hit_right_smaller_half(true); if (self.x() < (x * 16 + 8) * 0x200) && (self.x() > (x * 16 - 8) * 0x200) && (self.y() + self.hit_bounds().bottom as isize) > (y * 16 * 0x200) - (self.x() - x * 16 * 0x200) / 2 + 0x800 && (self.y() - self.hit_bounds().top as isize) < (y * 16 + 8) * 0x200 { self.set_y((y * 16 * 0x200) - ((self.x() - x * 16 * 0x200) / 2) + 0x800 - self.hit_bounds().bottom as isize); if self.is_player() && self.vel_y() > 0x400 { // PlaySoundObject(23, SOUND_MODE_PLAY); todo } if self.vel_y() > 0 { self.set_vel_y(0); } self.flags().set_hit_right_slope(true); self.flags().set_hit_bottom_wall(true); } } // lower right half (bigger) fn judge_hit_triangle_h(&mut self, x: isize, y: isize) { self.flags().set_hit_right_bigger_half(true); if (self.x() < (x * 16 + 8) * 0x200) && (self.x() > (x * 16 - 8) * 0x200) && (self.y() + self.hit_bounds().bottom as isize) > (y * 16 * 0x200) - (self.x() - x * 16 * 0x200) / 2 - 0x800 && (self.y() - self.hit_bounds().top as isize) < (y * 16 + 8) * 0x200 { self.set_y((y * 16 * 0x200) - ((self.x() - x * 16 * 0x200) / 2) - 0x800 - self.hit_bounds().bottom as isize); if self.is_player() && self.vel_y() > 0x400 { // PlaySoundObject(23, SOUND_MODE_PLAY); todo } if self.vel_y() > 0 { self.set_vel_y(0); } self.flags().set_hit_right_slope(true); self.flags().set_hit_bottom_wall(true); } } fn judge_hit_water(&mut self, x: isize, y: isize) { if (self.x() - self.hit_bounds().right as isize) < (x * 16 + 5) * 0x200 && (self.x() + self.hit_bounds().right as isize) > (x * 16 - 5) * 0x200 && (self.y() - self.hit_bounds().top as isize) < (y * 16 + 5) * 0x200 && (self.y() + self.hit_bounds().bottom as isize) > y * 16 * 0x200 { self.flags().set_in_water(true); } } fn judge_hit_spike(&mut self, x: isize, y: isize) { if (self.x() - 0x800) < (x * 16 + 4) * 0x200 && (self.x() + 0x800) > (x * 16 - 4) * 0x200 && (self.y() - 0x800) < (y * 16 + 3) * 0x200 && (self.y() + 0x800) > (y * 16 - 3) * 0x200 { self.flags().set_hit_by_spike(true); } } fn tick_map_collisions(&mut self, state: &mut SharedGameState, stage: &mut Stage) { let big = self.size() >= 3; let x = clamp((self.x() - if big { 0x1000 } else { 0 }) / 16 / 0x200, 0, stage.map.width as isize); let y = clamp((self.y() - if big { 0x1000 } else { 0 }) / 16 / 0x200, 0, stage.map.height as isize); for (idx, (&ox, &oy)) in OFF_X.iter().zip(OFF_Y.iter()).enumerate() { if idx == 4 && big { break; } let attrib = stage.map.get_attribute((x + ox) as usize, (y + oy) as usize); match attrib { // Spikes 0x62 | 0x42 if self.is_player() => { if attrib & 0x20 != 0 { self.flags().set_in_water(true); } self.judge_hit_spike(x + ox, y + ox); } // Blocks 0x02 | 0x60 | 0x62 => { self.judge_hit_water(x + ox, y + oy); } 0x05 | 0x41 | 0x43 | 0x46 if self.is_player() => { self.judge_hit_block(state, x + ox, y + oy); } 0x03 | 0x05 | 0x41 | 0x43 if !self.is_player() => { self.judge_hit_block(state, x + ox, y + oy); } 0x44 => { if !self.ignore_tile_44() { self.judge_hit_block(state, x + ox, y + oy); } } // Slopes 0x50 | 0x70 => { self.judge_hit_triangle_a(x + ox, y + oy); if attrib & 0x20 != 0 { self.judge_hit_water(x + ox, y + oy); } } 0x51 | 0x71 => { self.judge_hit_triangle_b(x + ox, y + oy); if attrib & 0x20 != 0 { self.judge_hit_water(x + ox, y + oy); } } 0x52 | 0x72 => { self.judge_hit_triangle_c(x + ox, y + oy); if attrib & 0x20 != 0 { self.judge_hit_water(x + ox, y + oy); } } 0x53 | 0x73 => { self.judge_hit_triangle_d(x + ox, y + oy); if attrib & 0x20 != 0 { self.judge_hit_water(x + ox, y + oy); } } 0x54 | 0x74 => { self.judge_hit_triangle_e(x + ox, y + oy); if attrib & 0x20 != 0 { self.judge_hit_water(x + ox, y + oy); } } 0x55 | 0x75 => { self.judge_hit_triangle_f(x + ox, y + oy); if attrib & 0x20 != 0 { self.judge_hit_water(x + ox, y + oy); } } 0x56 | 0x76 => { self.judge_hit_triangle_g(x + ox, y + oy); if attrib & 0x20 != 0 { self.judge_hit_water(x + ox, y + oy); } } 0x57 | 0x77 => { self.judge_hit_triangle_h(x + ox, y + oy); if attrib & 0x20 != 0 { self.judge_hit_water(x + ox, y + oy); } } 0x61 => { self.judge_hit_water(x + ox, y + oy); self.judge_hit_block(state, x + ox, y + oy); } 0x04 | 0x64 if !self.is_player() => { self.judge_hit_water(x + ox, y + oy); self.judge_hit_block(state, x + ox, y + oy); } // Forces 0x80 | 0xa0 => { if attrib & 0x20 != 0 { self.flags().set_in_water(true); } self.flags().set_force_left(true); } 0x81 | 0xa1 => { if attrib & 0x20 != 0 { self.flags().set_in_water(true); } self.flags().set_force_up(true); } 0x82 | 0xa2 => { if attrib & 0x20 != 0 { self.flags().set_in_water(true); } self.flags().set_force_right(true); } 0x83 | 0xa3 => { if attrib & 0x20 != 0 { self.flags().set_in_water(true); } self.flags().set_force_down(true); } _ => {} } } } }